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Title:
WET WIPES FOR CLEANSING AND MOISTURIZING OF THE SKIN
Document Type and Number:
WIPO Patent Application WO/2020/108733
Kind Code:
A1
Abstract:
The present invention relates to a wet wipe for cleansing, moisturizing, protection and maintaining the barrier of the skin which removes for example dirt, pollution, makeup, mascara and debris from the skin comprising an oil-in-water emulsion composition, and an oil-in-water emulsion composition for cleansing and moisturizing of the skin. The present invention also relates to a method for making said wipes.

Inventors:
MARECHAUD CLEMENTINE (FR)
HAU CAROLINE (FR)
POUCHIN MÉGANE (FR)
Application Number:
PCT/EP2018/082587
Publication Date:
June 04, 2020
Filing Date:
November 26, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ESSITY HYGIENE & HEALTH AB (SE)
International Classes:
A61Q1/14; A61K8/02; A61K8/06; A61K8/34; A61K8/37; A61K8/39; A61K8/81; A61K8/92; A61Q19/00; A61Q19/10
Domestic Patent References:
WO2012176166A22012-12-27
WO2007069214A22007-06-21
Foreign References:
FR2859630A12005-03-18
US20100279085A12010-11-04
US20140099469A12014-04-10
US20140099469A12014-04-10
Other References:
ANONYMOUS: "BEAUTYDERM WW", 6 November 2012 (2012-11-06), XP055611281, Retrieved from the Internet [retrieved on 20190806]
ANONYMOUS: "BEAUTYDERM WW FOR COLD PROCESS EMULSION", 12 March 2018 (2018-03-12), XP055611288, Retrieved from the Internet [retrieved on 20190806]
. . ANONYMOUS: "Google search results for Beautyderm WW", 6 August 2019 (2019-08-06), XP055611291, Retrieved from the Internet [retrieved on 20190806]
Attorney, Agent or Firm:
NEDERLANDSCH OCTROOIBUREAU (NL)
Download PDF:
Claims:
CLAIMS

1. A wet wipe having at least one layer and an oil- in- water (O/W) emulsion composition including:

- at least 80 % by weight of water, relative to the total weight of the composition;

- 0.5 to 5 % by weight of at least one oil-in-water (O/W) emulsifier, relative to the total weight of the composition,

- 1 to 6 % by weight of at least one emollient, relative to the total weight of the composition,

- 0.1 to 0.25 % by weight of at least one gelling agent, relative to the total weight of the composition, and

- 0.01 to 0.20 % by weight of at least one buffering agent, relative to the total weight of the composition.

2. The wet wipe of claim 1, wherein the composition includes 80 to 95% by weight, 85 to 95% by weight, or 88 to 95% by weight, of water, relative to the total weight of the composition.

3. The wet wipe according to claim 1 or 2, wherein the composition includes 1 to 4% by weight, or 1.5 to 3 % by weight, of at least one oil- in- water (O/W) emulsifier, relative to the total weight of the composition.

4. The wet wipe according to any one of claims 1 to 3, wherein the composition includes 1 to 6% by weight, or 1 to 5.5% by weight, of at least one emollient, relative to the total weight of the composition.

5. The wet wipe according to any one of claims 1 to 4, wherein the composition includes 0.1 to 0.2 % by weight, or 0.15 to 0.2 % by weight, of at least one gelling agent, relative to the total weight of the composition.

6. The wet wipe according to any one of claims 1 to 5, wherein the composition includes 0.01 to 0.10 % by weight, or 0.02 to 0.07 % by weight, of at least one buffering agent, relative to the total weight of the composition. 7. The wet wipe according to any one of claims 1 to 6, wherein the composition includes at least one oil-in-water (O/W) emulsifier chosen from Olive Oil PEG-7 Esters, Polyglyceryl-3 polyricinoleate, Sorbitan oleate, Polyglyceryl- 10 laurate, Polyglyceryl-4 oleate, Glyceryl stearate citrate, Cetyl phosphate, Ceteareth-20, Ceteareth-25, Glyceryl oleate citrate, Sorbitan laurate, Polyglyceryl-4 laurate, Cetearyl alcohol, Glyceryl Stearate, Sodium stearoyl lactylate, Cetearyl Glucoside, PEG-6 Isostearate, PolyglyceryB Diisostearate, Polyglyceryl-3 Methylglucose Distearate, Oleth-10, Ceteth- 10, Isosteareth-20, Steareth-21, Ceteth-20, Isoceteth-20, PEG-20 Methyl Glucose Sesquistearate, Polyglyceryl-4 Laurate/Succinate, PEG-25 hydrogenated Castor oil, PEG-8 Dioleate, PEG-8 Laurate, PEG-8 Oleate, or a combination thereof

8. The wet wipe according to any one of claims 1 to 7, wherein the composition includes at least one emollient chosen from

· Oils chosen from hydrogenated olive oil, non-hydrogenated olive oil, almond oil

(Prunus Agmydalus Dulcis Oil), apricot kernel oil, argan oil, avocado oil, Baobab oil, camelina oil, castor oil, cherry kernel oil, grape seed oil, coconut oil, hazelnut oil, macadamia nut oil, mongongo nut oil, jojoba oil, borage oil, squalene, sesame seed oil, cotton seed oil (Gossypium herbaceum seed oil);

· Mineral oils chosen from paraffinum liquidum, petrolatum;

• Fatty alcohol like Octyldodecanol

• Fatty acids and esters chosen from cetearyl isononanoate, ethyl linoleate, ethyl olivate, ethylhexyl cocoate, glyceryl oleate, glyceryl ricinoleate, isostearyl alcohol, dicaprylyl carbonate, isopropyl isostearate, isopropyl palmitate, isoprolyl myristate;

· Alkanes chosen from isododecane, isohexadecane, C 12-15 alkyl benzoate;

• Glyceride derivatives chosen from caprylic/capric triglyceride, cocoglycerides, palm glycerides;

• Glycerol derivatives chosen from glycerol, tricaprylin;

or a combination thereof

9. The wet wipe according to any one of claims 1 to 8, wherein the composition includes at least one gelling agent chosen from - carbomers such as Carbopols® and more specifically Carbopols® Ultrez 10, Carbopols® Ultrez 30, Carbopols® EDT 2050;

- polymers chosen from acrylates/C 10-30 alkyl acrylates copolymers or crosspolymers such as Pemulen® polymers, Carbopol® Ultrez 20 and Carbopol® Ultrez 21;

- acrylic acid and acrylamide copolymers such as sodium polyacrylate;

- polysaccharides chosen from starches such as xanthan gum, carrageenan, agar- agar, or alginates; resins and gums chosen from Arabic gum, guar gum, Tara gum, locust bean gum, or karaya gum;

- clays and silicates chosen from magnesium aluminium silicate, montmorillonites, hectorites, bentonites;

- cellulose derivatives selected from hydroxypropylcellulose (HPC), hydroxyethylcellulose (HEC) such as different types of Natrosol®, hydroxypropyl methylcellulose (HPMC), carboxymethyl cellulose (CMC), microcrystalline cellulose;

or a combination thereof.

10. The wet wipe according to any one of claims 1 to 9, wherein the composition includes a buffering agent chosen from

· acids: ascorbic, citric, lactic, gluconic;

• hydroxides: calcium, magnesium, potassium, sodium;

or a combination thereof.

11. The wet wipe according to any one of claims 1 to 10, wherein the composition further includes 0.5 to 3 % by weight, 0.5 to 2.5% by weight, or 1 to 2 % by weight, of at least one humectant, relative to the total weight of the composition.

12. The wet wipe according to claim 11, wherein the humectant is chosen from - 1,3 propanediol;

- glycerol derivatives such as glycerin, diglycerin, polyglycerin-6, polyglycerin-10;

- glycols such as propylene glycol, dipropylene glycol; - sugar alcohols chosen from sorbitol, xylitol, maltitol, erythritol, mannitol, glucose, D(+)-fructose, D(+)-galactose, D(+)-mannose, galactose;

- polyalkylene glycols chosen from polyethylene glycol having for instance an average molecular weight of 200 to 500;

or a combination thereof

13. The wet wipe according to any one of claims 1 to 12, wherein the composition includes:

- 88 to 91 % by weight of water;

- 1 to 3 % by weight of at least one oil-in-water (O/W) emulsifier chosen from polyglyceryl- 10 laurate, polyglyceryl-4 oleate, olive oil PEG-7 esters, polyglyceryl-3 polyricinoleate, sorbitan oleate, or a combination thereof;

- 5 to 5.5 % by weight of at least one emollient chosen from cotton seed oil (Gossypium herbaceum seed oil), hydrogenated olive oil, dicaprylyl carbonate, isopropyl isostearate, or a combination thereof;

- 0.15 to 0.2 % by weight of at least one gelling agent chosen from acrylates/C 10-30 acrylate crosspolymer;

- 0.09 to 0.14 % including at least one buffering agent such as sodium hydroxide; and optionally

- 1 to 2 % by weight of at least one humectant such as 1,3 propanediol;

all weights being relative to the total weight of the composition.

14. An oil- in- water (O/W) emulsion composition including:

- at least 80 % by weight of water, relative to the total weight of the composition;

- 0.5 to 5 % by weight of at least one oil-in-water (O/W) emulsifier, relative to the total weight of the composition,

- 1 to 6 % by weight of at least one emollient, relative to the total weight of the composition,

- 0.1 to 0.25 % by weight of at least one gelling agent, relative to the total weight of the composition, and

- 0.01 to 0.20 % by weight of at least one buffering agent, relative to the total weight of the composition. 15. The composition of claim 14 includes 80 to 95% by weight, 85 to 95% by weight, or 88 to 95% by weight, of water, relative to the total weight of the composition. 16. The composition according to claim 14 or 15, including 1 to 4% by weight, or 1.5 to 3 % by weight, of at least one oil- in- water (O/W) emulsifier, relative to the total weight of the composition.

17. The composition according to any one of claims 14 to 16, including 1 to 6% by weight, or 1 to 5.5% by weight, of at least one emollient, relative to the total weight of the composition.

18. The composition according to any one of claims 14 to 17, including 0.1 to 0.2 % by weight, preferably 0.15 to 0.2 % by weight, of at least one gelling agent, relative to the total weight of the composition.

19. The composition according to any one of claims 14 to 18, including 0.01 to 0.10 % by weight, or 0.02 to 0.07 % by weight, of at least one buffering agent, relative to the total weight of the composition.

20. The composition according to any one of claims 14 to 19, including at least one oil-in-water (O/W) emulsifier chosen from Olive Oil PEG-7 Esters, Polyglyceryl-3 polyricinoleate, Sorbitan oleate, Polyglyceryl- 10 laurate, Polyglyceryl-4 oleate, Glyceryl stearate citrate, Cetyl phosphate, Ceteareth-20, Ceteareth-25, Glyceryl oleate citrate, Sorbitan laurate, Polyglyceryl-4 laurate, Cetearyl alcohol, Glyceryl Stearate, Sodium stearoyl lactylate, Cetearyl Glucoside, PEG-6 Isostearate, PolyglyceryB Diisostearate, Polyglyceryl-3 Methylglucose Distearate, Oleth-10, Ceteth-10, Isosteareth-20, Steareth-

21. Ceteth-20, Isoceteth-20, PEG-20 Methyl Glucose Sesquistearate, Polyglyceryl-4 Laurate/Succinate, PEG-25 hydrogenated Castor oil, PEG-8 Dioleate, PEG-8 Laurate, PEG-8 Oleate, or a combination thereof.

21. The composition according to any one of claims 14 to 20, including at least one emollient chosen from • Oils chosen from hydrogenated olive oil, non-hydrogenated olive oil, almond oil (Prunus Agmydalus Dulcis Oil), apricot kernel oil, argan oil, avocado oil, Baobab oil, camelina oil, castor oil, cherry kernel oil, grape seed oil, coconut oil, hazelnut oil, macadamia nut oil, mongongo nut oil, jojoba oil, borage oil, squalene, sesame seed oil, cotton seed oil (Gossypium herbaceum seed oil);

• Mineral oils chosen from paraffinum liquidum, petrolatum;

• Fatty alcohol like Octyldodecanol

• Fatty acids and esters chosen from cetearyl isononanoate, ethyl linoleate, ethyl olivate, ethylhexyl cocoate, glyceryl oleate, glyceryl ricinoleate, isostearyl alcohol, dicaprylyl carbonate, isopropyl isostearate, isopropyl palmitate, isoprolyl myristate;

• Alkanes chosen from isododecane, isohexadecane, C 12-15 alkyl benzoate;

• Glyceride derivatives chosen from caprylic/capric triglyceride, cocoglycerides, palm glycerides;

• Glycerol derivatives chosen from glycerol, tricaprylin;

or a combination thereof

22. The composition according to any one of claims 14 to 21, including at least one gelling agent chosen from

- carbomers such as Carbopols® and more specifically Carbopols® Ultrez 10, Carbopols® Ultrez 30, Carbopols® EDT 2050;

- polymers chosen from acrylates/C 10-30 alkyl acrylates copolymers or crosspolymers such as Pemulen® polymers, Carbopol® Ultrez 20 and Carbopol® Ultrez 21;

- acrylic acid and acrylamide copolymers such as sodium polyacrylate;

- polysaccharides chosen from starches such as xanthan gum, carrageenan, agar- agar, or alginates; resins and gums chosen from Arabic gum, guar gum, Tara gum, locust bean gum, or karaya gum;

- clays and silicates chosen from magnesium aluminium silicate, montmorillonites, hectorites, bentonites;

- cellulose derivatives selected from hydroxypropylcellulose (HPC), hydroxyethylcellulose (HEC) such as different types ofNatrosol®, hydroxypropyl methylcellulose (HPMC), carboxymethyl cellulose (CMC), microcrystalline cellulose;

or a combination thereof.

23. The composition according to any one of claims 14 to 22, including a buffering agent chosen from

• acids: ascorbic, citric, lactic, gluconic;

• hydroxides: calcium, magnesium, potassium, sodium;

or a combination thereof.

24. The composition according to any one of claims 14 to 23, further including 0.5 to 3 % by weight, preferably 0.5 to 2.5% by weight, more preferably 1 to 2 % by weight, of at least one humectant, relative to the total weight of the composition.

25. The composition according to claim 24, wherein the humectant is chosen from - 1,3 propanediol;

- glycerol derivatives such as glycerin, diglycerin, polyglycerin-6, polyglycerin-10;

- glycols such as propylene glycol, dipropylene glycol;

- sugar alcohols chosen from sorbitol, xylitol, maltitol, erythritol, mannitol, glucose, D(+)-fructose, D(+)-galactose, D(+)-mannose, galactose;

- polyalkylene glycols chosen from polyethylene glycol having for instance an average molecular weight of 200 to 500;

or a combination thereof.

26. The composition according to any one of claims 14 to 25, including

- 88 to 91 % by weight of water;

- 1 to 3 % by weight of at least one oil-in-water (O/W) emulsifier chosen from polyglyceryl- 10 laurate, polyglyceryl-4 oleate, olive oil PEG-7 esters, polyglyceryl-3 polyricinoleate, sorbitan oleate, or a combination thereof;

- 5 to 5.5 % by weight of at least one emollient chosen from cotton seed oil (Gossypium herbaceum seed oil), hydrogenated olive oil, dicaprylyl carbonate, isopropyl isostearate, or a combination thereof; - 0.15 to 0.2 % by weight of at least one gelling agent chosen from acrylates/C 10-30 acrylate crosspolymer; and

- 0.09 to 0.14 % including at least one buffering agent such as sodium hydroxide; and optionally

- 1 to 2 % by weight of at least one humectant such as 1,3 propanediol;

all weights being relative to the total weight of the composition.

27. A method of making wet wipes according to any one of claims 1 to 13, wherein it includes

a) providing at least one layer of a nonwoven, a tissue paper or a woven web material; and

b) contacting the nonwoven web material, the tissue paper or the woven web with an oil- in- water O/W emulsion composition according to any one of claims 14 to 26. 28. The method of claim 27, wherein said method further includes a step of c) cutting the nonwoven, tissue paper or woven web material obtained at the end of step b).

Description:
WET WIPES FOR CLEANSING AND MOISTURIZING OF THE SKIN

The present disclosure relates to a wet wipe for cleansing, moisturizing, protecting and maintaining the barrier of the skin including an oil-in-water emulsion composition, and an oil-in-water emulsion composition for cleansing and moisturizing of the skin.

The present disclosure also relates to a method for making said wipes.

Wet wipes intended for cleansing, moisturizing, protection and maintaining the barrier of the skin, such as those for baby care, hand washing, make-up removal, washing the body, or wipes intended for applying products such as sunless tanners or deodorants, have become increasingly popular in recent years. They provide a convenient solution to helping people keep clean and refreshed when time is short and can often be found in many places outside the home such as the workplace, handbags, sports bags, cars and other places where water and skin cleansing products such as soap, hand washes or makeup removers are not readily available.

Facial skincare wipes, in particular, make-up removal wet wipes, are usually selected for their softness and ability to cleanse, remove make-up and mascara, remove dead skin cells and retain the dirt and/or dead skin cells that is being removed from the skin. However, there is increasing interest in having facial skincare wipes, in particular, make-up removal wipes, with additional functions such as anti-aging and moisturization, or skin protection.

Conventional wet wipes consist of two main parts: the wipe which often consists of a nonwoven and the composition applied to said wipe.

The composition contained in the wet wipes should have

- good cleansing properties to remove for example dirt, make-up and dead skin cells,

- good moisturizing properties, and

- good stability over time.

Said composition should also spread easily across the whole wipe ready for application on to the skin.

Furthermore, wet wipes should have the correct level of wetness to be able to perform their intended function(s), i.e. not too wet or too dry, while remaining stable and ready to use throughout their intended shelf life.

To avoid the dryness of the skin, greasiness and stickiness, wipes should also have the correct level of surfactants, emollients, oils, etc.. Surfactant based-lotions can dry the skin and thus provide discomforts to the skin. On the other side, emulsion containing oily components can leave a greasy feeling of the skin, that is not pleasant.

Therefore, a need currently exists for a wet wipe including a composition for cleansing of the skin, which:

- has an effective cleansing action to remove, for example, dirt, pollution, make-up, mascara and debris from skin surface including debris dead skin cells,

- is capable of transferring active agents to the skin,

- produces a long-lasting moisturizing of the skin, and

- maintains and/or improves skin barrier properties, providing a skin protection effect,

- leaves a clean, soothing and/or pleasant feel on the skin.

In particular, a need exists for a wet wipe that can remove make-up, mascara, dirt or pollution residues and debris from skin surface efficaciously (at least 80% of removal efficacy) and, at the same time, produce a long-lasting moisturizing of the skin (at least 8 hours, could go up to 12 hours).

In addition, a need exists for a composition for cleansing the skin, that

- has an effective cleansing action to remove, for example, dirt, pollution, make-up, mascara and debris from skin surface including debris dead skin cells,

- produces a long-lasting moisturizing of the skin (at least 8 hours, up to 12 hours), and

- does not require costly ingredients, and

- can spread easily across a whole wipe ready for application onto the skin.

Furthermore, a need exists for composition as indicated above with high stability over time (up to 6 months stability at 20-25°C), with a very good cleansing action (at least 80% of removal efficacy), good skin tolerance even for sensitive skin and long-lasting moisturizing action (at least 8 hours and up to 12 hours).

In one aspect, addressing the aforementioned and other needs in the art, a wet wipe having at least one layer and an oil-in-water (O/W) emulsion composition includes:

- at least 80 % by weight of water, relative to the total weight of the composition;

- 0.5 to 5 % by weight of at least one oil-in-water (O/W) emulsifier, relative to the total weight of the composition,

- 1 to 6 % by weight of at least one emollient, relative to the total weight of the composition,

- 0.1 to 0.25 % by weight of at least one gelling agent, relative to the total weight of the composition, and - 0.01 to 0.20 % including at least one buffering agent, relative to the total weight of the composition.

In another aspect, an oil- in- water emulsion composition includes:

- at least 80 % by weight of water, relative to the total weight of the composition,

- 0.5 to 5 % by weight of at least one oil-in- water (O/W) emulsifier, relative to the total weight of the composition,

- 1 to 6 % by weight of at least one emollient, relative to the total weight of the composition,

- 0.1 to 0.25 % by weight of at least one gelling agent, relative to the total weight of the composition, and

- 0.01 to 0.20 % including at least one buffering agent, relative to the total weight of the composition.

In another aspect, a method of providing wet wipes which includes:

a) providing at least one layer of a nonwoven, a tissue paper or a woven web material; and

b) contacting the nonwoven, the tissue paper or the woven web material with the oil-in-water O/W emulsion composition, such that a wet wipe, for example, the wet wipe according to the disclosure is produced.

All features and aspects disclosed in greater detail hereafter, apply to all of the aforementioned aspects.

As used herein, the term“wet wipe” refers to a fibrous web which, during its manufacture, has a liquid applied thereto so that the liquid is retained or within the fibrous sheet until its utilization by a consumer. Non limiting examples of wet wipes may be facial wipes, facial tissues, body wipes, hankies, wipes for babies, tissue wipes, kitchen towels, household towels, bathroom towels, etc.

For example, the wipes disclosed herein show a very good cleansing action (at least 80% of removal efficacy), meaning that more than 80% of initial amount of dirt or make-up applied on the skin is removed after 5 passages of the wipe on the skin. This can be determined, for example, by spectrophotometry measurements on dirt or make-up applied on the forearm, before and after wiping. The difference of color measurements gives the percentage of dirt or make-up removed by the wipe. The oil-in-water composition includes at least 80% by weight, at least 85% by weight, or at least 88% by weight, of water, relative to the total weight of the composition.

The amount of water in the composition is, for example, 80 to 95% by weight, 85 to 95% by weight, or 88 to 95% by weight, of water, relative to the total weight of the composition, including the stated values and all weights and weight ranges between stated values.

The composition is an oil-in-water (O/W) emulsion, where the water constitutes the continuous phase and the main component and the oil constitutes the dispersed or discontinuous phase. Accordingly, in particular embodiments, the weight portion of the oil phase is 20% by weight or less, for example 3 to 20 % by weight, 15 % by weight or less, for example 4 to 15 % by weight, or 10% by weight or less, for example 4 to 10 % by weight, based on the total weight of the O/W emulsion composition.

As already indicated, the oil- in water emulsion includes one oil- in- water (O/W) emulsifier or a combination of two or more oil-in- water (O/W) emulsifiers.

Said O/W emulsifiers primarily have the function of forming an oil-in-water (O/W) emulsion by uniformly dispersing the immiscible phase (oil) in the continuous phase (water), thus contributing to the stability of the emulsion. The emulsifiers can be suitably selected from known O/W emulsifiers.

The O/W emulsifiers used in the oil-in-water emulsion compositions can be those which have an HLB (Hydrophilic Lipophilic Balance) range of 7 to 18, an HLB range of 7.5 to 18, or an HLB range of 7.5 to 16. Two or more emulsifiers can also be blended to obtain the desired HLB and thus achieve stable emulsions.

In an embodiment, the total amount of emulsifier(s) in the composition is 1 to 4% by weight, or 1.5 to 3 % by weight, relative to the total weight of the composition, including the stated values and all weights and weight ranges between stated values. The “total amount” is intended to mean the amount of all emulsifier(s) present in the oil-in water emulsion composition.

The O/W emulsifier(s) may be chosen from Olive Oil PEG-7 Esters, Polyglyceryl-3 polyricinoleate, Sorbitan oleate, Polyglyceryl- 10 laurate, Polyglyceryl-4 oleate, Glyceryl stearate citrate, Cetyl phosphate, Ceteareth-20, Ceteareth-25, Glyceryl oleate citrate, Sorbitan laurate, Polyglyceryl-4 laurate, Cetearyl alcohol, Glyceryl Stearate, Sodium stearoyl lactylate, Cetearyl Glucoside, PEG-6 Isostearate, PolyglyceryB Diisostearate, Polyglyceryl-3 Methylglucose Distearate, Oleth-10, Ceteth- 10, Isosteareth-20, Steareth-21, Ceteth-20, Isoceteth-20, PEG-20 Methyl Glucose Sesquistearate, Polyglyceryl-4 Laurate/Succinate, PEG-25 hydrogenated Castor oil, PEG-8 Dioleate, PEG-8 Laurate, PEG-8 Oleate, or a combination thereof.

In a particular embodiment, the composition includes at least one emulsifier chosen from Olive Oil PEG-7 Esters, Polyglyceryl-3 polyricinoleate, Sorbitan oleate, Polyglyceryl- 10 laurate, Polyglyceryl-4 oleate, or a combination thereof.

As already mentioned, the oil-in water composition includes at least one emulsifier. As already indicated, the oil- in water emulsion composition includes one oil- in-water (O/W) emulsifier or a combination of two or more oil-in-water (O/W) emulsifiers.

As already indicated, the oil-in water emulsion composition includes one emollient or a combination of two or more emollients.

The total amount of emollient(s) in the composition is 1 to 6% by weight, or 1 to 5.5% by weight, relative to the total weight of the composition, including the stated values and all weights and weight ranges between stated values. The“total amount” is intended to mean the amount of all emollient(s) present in the oil-in water emulsion composition.

The functions of emollients are usually to soften and smooth, and they can have secondary properties to moisturize, protect and film-form. Emollients are able to trap water in the skin via a mechanism of occlusion, preventing transepidermal water loss. They can also bring needed substances by the skin, to keep the right moisture content of the stratum comeum.

The emollient(s) may be chosen from

• Oils chosen from hydrogenated olive oil, non-hydrogenated olive oil, almond oil (Prunus Agmydalus Dulcis Oil), apricot kernel oil, argan oil, avocado oil, Baobab oil, camelina oil, castor oil, cherry kernel oil, grape seed oil, coconut oil, hazelnut oil, macadamia nut oil, mongongo nut oil, jojoba oil, borage oil, squalene, sesame seed oil, cotton seed oil (Gossypium herbaceum seed oil);

• Mineral oils chosen from paraffinum liquidum, petrolatum;

• Fatty alcohol like Octyldodecanol • Fatty acids and esters chosen from cetearyl isononanoate, ethyl linoleate, ethyl olivate, ethylhexyl cocoate, glyceryl oleate, glyceryl ricinoleate, isostearyl alcohol, dicaprylyl carbonate, isopropyl isostearate, isopropyl palmitate, isoprolyl myristate;

• Alkanes chosen from isododecane, isohexadecane, C12-15 alkyl benzoate;

• Glyceride derivatives chosen from caprylic/capric triglyceride, cocoglycerides, palm glycerides;

• Glycerol derivatives chosen from glycerol, tricaprylin;

or a combination thereof.

In a particular embodiment, the composition includes at least one emollient chosen from cotton seed oil (Gossypium herbaceum seed oil), hydrogenated olive oil, dicaprylyl carbonate, isopropyl isostearate, or a combination thereof

The oil-in water emulsion composition includes one gelling agent or a combination of two or more gelling agents.

In a particular embodiment, the total amount of gelling agent(s) in the composition is 0.1 to 0.2 % by weight, or 0.15 to 0.2 % by weight, relative to the total weight of the composition including the stated values and all weights and weight ranges between stated values. The“total amount” is intended to mean the amount of all gelling agent(s) present in the oil- in water emulsion composition.

The term gelling agent, also known as thickening agent, is intended to mean a polymer which swells in water, creates a molecular network and increases the viscosity of the composition, gives a better feeling and texture, etc. The stability of the O/W composition, is also improved by the presence of the gelling agent.

In the composition, the gelling agent can in particular be chosen from:

- carbomers such as Carbopols ® and more specifically Carbopols ® Ultrez 10, Carbopols ® Ultrez 30, Carbopols ® EDT 2050;

- polymers chosen from acrylates/C 10-30 alkyl acrylates copolymers or crosspolymers such as Pemulen ® polymers, Carbopol ® Ultrez 20 and Carbopol ® Ultrez 21;

- acrylic acid and acrylamide copolymers such as sodium polyacrylate;

- polysaccharides chosen from starches such as xanthan gum, carrageenan, agar- agar, or alginates; resins and gums chosen from Arabic gum, guar gum, Tara gum, locust bean gum, or karaya gum; - clays and silicates chosen from magnesium aluminium silicate, montmorillonites, hectorites, bentonites;

- cellulose derivatives selected from hydroxypropylcellulose (HPC), hydroxyethylcellulose (HEC) such as different types of Natrosol ® , hydroxypropyl methylcellulose (HPMC), carboxymethyl cellulose (CMC), microcrystalline cellulose;

or a combination thereof

In a particular embodiment, the gelling agent is chosen from:

- polymers chosen from acrylates/C 10-30 alkyl acrylates copolymers or crosspolymers such as Pemulen ® polymers, Carbopol ® Ultrez 20 and Carbopol ® Ultrez 21;

or a combination thereof

In a still more particular embodiment, the gelling agent(s) is (are) chosen from acrylates/C 10-30 alkyl acrylates copolymers or crosspolymers such as Pemulen ® polymers, or a combination thereof

The oil-in water emulsion composition includes one buffering agent or a combination of two or more buffering agents.

In a particular embodiment, the total amount of buffering agent(s) in the composition is 0.01 to 0.15% by weight, preferably 0.02 to 0.14% by weight, relative to the total weight of the composition including the stated values and all weights and weight ranges between stated values. The“total amount” is intended to mean the amount of all buffering agent(s) present in the oil- in water emulsion composition.

The function of the buffering agent(s), which can be a strong base or a strong acid, is to adjust and stabilize the pH of the composition, and to neutralize the gelling agent, by preventing a rapid change in pH when acids or bases are present therein. Some buffering agent(s) may additionally have other properties. They may be effective moisturizers, having powerful moisture-binding properties.

In the composition, the buffering agent can, in particular, be chosen from:

• acids: ascorbic, citric, lactic, gluconic;

• hydroxides: calcium, magnesium, potassium, sodium;

or a combination thereof. In a particular embodiment, the buffering agent is chosen from hydroxides: calcium, magnesium, potassium, sodium, or a combination thereof In a certain embodiment the buffering agent is sodium hydroxide.

The oil-in water emulsion composition optionally includes one humectant or a combination of two or more humectants.

Humectants are frequently used to increase and maintain moisture in the skin as hygroscopic moisturizers, humectants work by attracting and binding water to the upper layer of the skin (stratum comeum). Moreover, the humectant can interact with other components in the composition.

In a particular embodiment, the total amount of humectants(s) in the composition is 0.5 to 3 % by weight, 0.5 to 2.5% by weight, or 1 to 2 % by weight, of at least one humectant, relative to the total weight of the composition including the stated values and all weights and weight ranges between stated values. The“total amount” is intended to mean the amount of all humectants(s) present in the oil-in water emulsion composition.

In the composition, the humectant can, in particular, be chosen from

- 1,3 propanediol;

- glycerol derivatives such as glycerin, diglycerin, polyglycerin-6, polyglycerin-10;

- glycols such as propylene glycol, dipropylene glycol;

- sugar alcohols chosen from sorbitol, xylitol, maltitol, erythritol, mannitol, glucose, D(+)-fructose, D(+)-galactose, D(+)-mannose, galactose;

- polyalkylene glycols chosen from polyethylene glycol having for instance an average molecular weight of 200 to 500;

or a combination thereof.

In a particular embodiment, the humectant is 1,3 propanediol.

The pH of the O/W emulsion composition and the wet wipes including said composition should be adjusted to the pH of the skin, a pH of 4 to 6, and or a pH of 4.5 to 5.5.

The O/W emulsion composition may contain further additives and/or active agents chosen from, for example:

- preservatives or preserving agents, non- limitative examples thereof being chlorphenesin; phenoxy ethanol such as Phenoxetol ® ; a mixture of phenoxy ethanol, methylparaben and ethylparaben such as Phenonip ® ; a mixture of phenoxy ethanol, methylparaben and propylparaben such as Nipaguard BPX ® ; dehydroacetic acid, sodium benzoate, potassium sorbate, polyaminopropyl biguanide (PAPB), benzoic acid, hydroxyacetophenone, chlorophenesin, sorbitan caprylate, glyceryl caprylate, ethylhexylglycerin;

- sequestering or chelating agents such as tetrasodium ethylenediaminetetraacetate, disodium dihydrogen ethylenediaminetetraacetate, tetrasodium glutamate diacetate, sodium gluconate;

- antioxidants, such as tocopheryl acetate;

- synthetic fragrances;

- antiseptics; antimicrobials such as salicylic acid;

- natural or synthetic extracts having for example soothing, moisturizing, and healing properties, such as allantoin, aloe vera, bisabolol;

or a combination thereof

The amounts of these various additives are those conventionally used in this field and complete the weight of the composition to a total weight of 100%. These additives and the concentrations thereof should be such that they do not modify the property desired for the composition and that they do not destabilize it.

In particular embodiments, the composition is in the form of an oil-in-water (O/W) emulsion.

The O/W emulsion composition has a viscosity, for example, less than or equal to 0.2 Pa.s, measured at a temperature of 25°C, using a Brookfield LV DV I + from BROOKFIELD ENGINEERING LABORATORIES, INC. For example, the viscosity of the composition may range from 0.12 to 0.2 Pa.s. The device is equipped with a set of four spindles: LV 1 , LV2, LV3 and LV4. The following spindles (sp) and rotational speeds (v) are used:

- sp 1 / v 100 rpm for 0.05 Pa.s (50 cP) < h < 0.2 Pa.s (200 cP)

- sp 1 / v 20 rpm for 0.1 Pa.s (100 cP) < h < 0.3 Pa.s (300 cP)

According to an embodiment, the O/W emulsion composition includes:

- 88 to 93 % by weight of water;

- 1 to 3 % by weight of at least one oil-in-water (O/W) emulsifier chosen from polyglyceryl- 10 laurate, polyglyceryl-4 oleate, olive oil PEG-7 esters, polyglyceryl-3 polyricinoleate, sorbitan oleate, or a combination thereof; - 1.5 to 5.5 % by weight of at least one emollient chosen from cotton seed oil (Gossypium herbaceum seed oil), hydrogenated olive oil, dicaprylyl carbonate, isopropyl isostearate, or a combination thereof;

- 0.15 to 0.2 % by weight of at least one gelling agent chosen from acrylates/C 10-30 acrylate crosspolymer; and

- 0.09 to 0.14 % including at least one buffering agent such as sodium hydroxide;

all weights being relative to the total weight of the composition.

According to another embodiment, the O/W emulsion composition includes:

- 88 to 91 % by weight of water;

- 1 to 3 % by weight of at least one oil-in-water (O/W) emulsifier chosen from polyglyceryl- 10 laurate, polyglyceryl-4 oleate, olive oil PEG-7 esters, polyglyceryl-3 polyricinoleate, sorbitan oleate, or a combination thereof;

- 5 to 5.5 % by weight of at least one emollient chosen from cotton seed oil (Gossypium herbaceum seed oil), hydrogenated olive oil, dicaprylyl carbonate, isopropyl isostearate, or a combination thereof;

- 0.15 to 0.2 % by weight of at least one gelling agent chosen from acrylates/C 10-30 acrylate crosspolymer;

- 0.09 to 0.14 % including at least one buffering agent such as sodium hydroxide; and optionally

- 1 to 2 % by weight of at least one humectant such as 1,3 propanediol;

all weights being relative to the total weight of the composition.

According to another embodiment, the O/W emulsion composition includes:

- 88 to 91 % by weight of water;

- 1 to 3 % by weight of at least one oil-in-water (O/W) emulsifier chosen from polyglyceryl- 10 laurate, polyglyceryl-4 oleate, olive oil PEG-7 esters, polyglyceryl-3 polyricinoleate, sorbitan oleate, or a combination thereof;

- 5 to 5.5 % by weight of at least one emollient chosen from cotton seed oil (Gossypium herbaceum seed oil), hydrogenated olive oil, dicaprylyl carbonate, isopropyl isostearate, or a combination thereof;

- 0.15 to 0.2 % by weight of at least one gelling agent chosen from acrylates/C 10-30 acrylate crosspolymer; and

- 0.02 to 0.04 % including at least one buffering agent such as sodium hydroxide;

- 1 to 2 % by weight of at least one humectant such as 1,3 propanediol; - 0.1 to 0.2 % by weight of at least one chelating agent such as sodium gluconate; and

- 0.4 to 0.6 % by weight of at least one preservative chosen from phenoxy ethanol, sodium benzoate, hydroxyacetophenone, chlorphenesin, sorbitan caprylate, glyceryl caprylate, dehydroacetic acid, or a combination thereof;

all weights being relative to the total weight of the composition.

The oil-in-water emulsion composition may be prepared in a conventional manner, for example, by incorporating the oily phase (phase B) under shearing in water phase (phase A) at room temperature (20°C ± 5°C) and/or under slight heating (for example, 40°C or less).

Phase A is prepared by dispersing the gelling agent in the solvent under high stirring. The other ingredients, i.e. emollient(s), humectant(s) when present, preservative(s) are then dispersed thereto. The resulting mixture is homogenized under stirring.

In Phase B, all the ingredients, i.e. emulsifier(s), emollient(s) and preservative(s) are placed in a container, slightly heated, for example to a temperature of 40°C or less and homogenized.

Phase B is incorporated in phase A, under stirring to get an oil- in- water emulsion composition and the pH is adjusted with Phase C, at the end, to obtain a final pH, close to skin pH, that is a pH of 4 to 7, or a pH of 5 to 6.

The oil-in-water (O/W) emulsion compositions, and thus the wet wipes containing said compositions, are specifically designed

- to provide high cleansing action, in particular, high efficacy in removal of make-up, mascara, dirt or pollution residues and debris from skin surface (at least 80%),

- to produce a long-lasting moisturizing of the skin (at least 8 hours and up to 12 hours), and

- to produce high stability over time (up to 6 months stability at 20-25°C).

Moreover, the composition has good skin tolerance is thus adapted for sensitive skin.

In embodiments, the composition is able to transfer efficaciously make-up, mascara, dirt or pollution residues and debris from skin surface onto the wet wipe, and readily transfer from the wet wipe onto the skin in contact with the wipe, an enhanced and a long-lasting moisturizing benefit, and a maintain of skin barrier, or a protection effect of the skin. The wet wipes include a single layer or a multi-layered fibrous web that contains the oil-in-water emulsion composition.

The term“fibrous web” is understood to be a planar fiber-base substrate. It may be single or multi-layered. Its web structure makes it porous and absorptive for liquids, in particular, the O/W emulsion composition as disclosed.

The materials of the fibrous web, single or multi-layered, of the wet wipe may be selected to provide performance properties including softness, resiliency, strength, flexibility, integrity, absorbency, liquid retention, thickness, tear resistance, surface texture, drapability, wettability, fluid release, or a combination thereof. The wipe can be configured to provide all the desired properties within one layer or configured to provide only specific physical properties within individual layers of a multi-layered wipe. For example, the wet wipes may include at least one layer of material that is configured to provide strength and absorbency to the wet wipe and at least one layer which is configured to provide a soft, gentle wiping surface to the wet wipe. In embodiments, the wet wipes provide a soft wiping surface for contact with the skin.

The materials of the fibrous web, single or multi-layered, of the wet wipe may be a“woven”,“nonwoven” or a“tissue paper.” In an embodiment, the wet wipe is a “nonwoven”.

The term“woven” refers to a fabric textile formed by weaving. Woven fabrics are often created on a loom, and made of many threads woven on a warp and a weft. Technically a woven fabric is any fabric made by interlacing two or more threads at right angles to one another.

Wipes made from nonwoven fabrics are cost effective as a single-use product and suitable for various types of packaging.

Nonwovens are textile-like materials made from staple fibers (short) and long fibers (continuous long), bonded together by chemical, mechanical, heat or solvent treatment. They can mimic the appearance, texture and strength of a woven textile.

The layer or layers of the wet wipe can be made from a variety of woven or nonwoven materials including meltblown materials, coform materials, air-laid materials, bonded-carded materials, hydroentangled materials, spunbond materials and the like and can include synthetic or natural fibers. Examples of natural fibers suitable for use in the wipes include cellulosic fibers such as wood pulp fibers, cotton fibers, bamboo fibers, flax fiber, jute fibers, silk fibers and the like. Examples of synthetic fibers are thermoplastic polymeric fibers include polyolefins such as polypropylene and polyethylene, polyamides, and polyesters such as polyethylene terephtalate. Alternative synthetic fibers which may be suitable include polylactic acid, lyocell staple nylon and rayon fibers. The layer or layers of the wet wipe can be woven or nonwoven materials, and in particular embodiments, nonwoven materials.

If a layer of the fibrous web is a combination of polymeric and natural fibers, such as polypropylene and cellulosic fibers, the relative percentages of the polymeric fibers and natural fibers in the layer can vary over a wide range depending on the desired characteristics of the wet wipes. For example., the layer may include from 20 to 60 % by weight, in particular, from 30 to 40 % by weight of synthetic polymeric fibers based of the dry weight of the layer. Such a layer of synthetic polymeric and natural fibers may be manufactures by any method known to those skilled in the art.

The layer or layers of the wet wipe can be made from a variety of materials including meltblown materials, coform materials, air-laid materials, bonded-carded materials, hydroentangled materials, spunbond materials and the like.

In the air-laying process, fibers are entrained in an air stream, intermingled and then deposited onto a forming screen or wire, usually with the assistance of a vacuum supply. The randomly deposited fibers are then bonded to another autogenously, such as through the use of heat and/or pressure, or through the use of a binder, such as by the inclusion of binder fibers or the application of adhesive to the web. With respect to air- laid nonwoven webs, suitable wiping substrates include meltblown, spunbond and bonded-carded web materials. Examples of suitable air-laid nonwoven webs, and methods of making the same, are described in US-A 2010/0279085 or in US-A 2014/0099469.

Coform air-laid nonwoven webs are formed by commingling of polymeric fibers and absorbent fibers, such as polypropylene fibers and cellulosic fibers, as the fibers are entrained by a common airstream before they are deposited onto a forming surface. For example the layer may include from 20 to 95 % by weight, from 20 to 60 % by weight, and or from 30 to 40 weight % of polymeric fibers, based on the dry weight of the layer. Coform air-laid nonwoven webs are particularly suited for as they are formed by a coform process for a more uniform distribution of the polymeric and natural fibers within the layer. Typically, such coform layers include a gas-formed matrix of thermoplastic polymeric meltblown microfibers such as, for example, polypropylene microfibers and cellulosic fibers such as, for example, wood pulp fibers. Such coform layers are manufactured as described in US-A 2014/099469 for example, by initially forming at least one primary air stream containing the synthetic or polymeric fibers and merging the primary stream with at least one secondary stream of natural or cellulosic fibers. The primary and secondary streams are merged under turbulent conditions to form an integrated stream containing a thorough, homogeneous distribution of the different fibers. The integrated air stream is directed onto a forming surface to air form the layer of material. A multiplicity of these coform layers can then be formed in succession to provide a web of multiple coform layers. Various other suitable polymeric materials, or combinations thereof, may alternatively be utilized to achieve a fibrous web having a soft feel and good cleaning efficacy.

The different fibers in the different layers of the fibrous web material of the wipes, such as polypropylene and polyethylene microfibers set forth above, may not be compatible with and may not bond to each other. However, the different layers may entangle with each other resulting in a suitable securement between the layers.

Hydroentangled nonwoven web materials are also particularly well suited for use in the wet wipes of the invention. Hydro entangling is a process of forming a nonwoven web which generally includes the steps of (i) depositing lose fibers on a porous belt or patterned screen and (ii) subjecting the fibers to one or more rows of fine high- pressure jets of water so that the fibers become sufficiently entangled with one another to form a coherent nonwoven web. In some embodiments, hydro entangling readily allows for the combination of different fiber types, such as combining fibers of distinct composition (e.g. polymeric fibers and wood pulp fibers) or fibers of distinct size (e.g. continuous length and staple length fibers). By way of example, suitable hydroentangled materials and methods of making the same are described in US-A 2010/0279085 or in US-A 2014/0099469. It is of note that the category of hydroentangled nonwoven webs includes what is commonly referred to as spunlace fabrics.

For example, in a layered web containing a coform layer of polyethylene and cellulosic fibers and a coform layer of polypropylene and cellulosic fibers and may at least partially bond to the cellulosic fibers and may at least partially bond to the cellulosic fibers which results in securement between the layers.

In certain embodiments, the fibrous web may include a flushable, water dispersible and/or biodegradable web material made e.g. from polylactide. If desired, the nonwoven web may also be further treated by one or more techniques known in the art to improve the durability, strength, aesthetics, texture and/or other properties. For example the nonwoven web may be pattern bonded or embossed by the use of heat, pressure and/or ultrasonic energy. Various pattern bonding techniques are described in US-A 2010/0279085.

The nonwoven fibrous web materials may be bonded by continuous and/or discontinuous lines, by patterns of numerous discrete elements, or other patterns as may be desired. Additionally, the nonwoven may be bonded along the periphery of the web or simply across the width or cross direction of the web adjacent to the edges. Alternatively and/or additionally, a resin, latex or adhesive may be applied to the nonwoven web by, for example, spraying or printing, to achieve the desired nature and degree of bonding. The fibrous nonwoven webs may also, if desired, be treated by various other known techniques such as, for example, stretching, needling, creping, printing, dyeing.

Wet wipes based on“tissue paper” refers to paper products including pulp fibers both of hardwood and softwood types. In addition non wood fibers originating from e.g. bast, flax, leaf, grass, seed, cotton or hemp may also be used. Most tissue papers are produced from cellulosic webs having one or multiple layers. Tissue papers should have a good balance between strength and softness as well as absorbency and bulk.

Manufacturing such tissue papers includes the steps of providing pulp fibers and forming an aqueous suspension of the pulp fibers followed by feeding the suspension to a tissue-making headbox. Afterwards the suspension will be deposited onto a wire to form a wet web which will be dried and creped in order to remove water from the web. Other manufacturing processes for tissue paper are based on the TAD (through air drying) technique, the NTT technology or the Atmos technology. The resulting dried tissue paper will be rewinded to form a so called mother roll which can be stored prior to further converting the tissue paper into final products e.g. being used as wet wipes.

The converting steps may include embossing as well as calendering, printing, ply-bonding, corrugating, perforating, creping, coating, cutting, folding or any other mechanical or chemical treatment.

In an embodiment, it is desired that the wet wipe defines sufficient strength to withstand the forces exerted by the user when the O/W emulsion composition is applied thereto. The amount of the O/W emulsion composition contained within each wet wipe may vary depending upon the type of material being used to provide the wet wipe, the type of O/W emulsion composition being used, the type of container being used to store the wet wipes, and the desired end use of the wet wipe. In embodiments, each wet wipe may contain at least 2 g and at most 4 g of the O/W emulsion composition per 1 g of the wipe. In embodiments, each wet wipe may contain 2 to 3.5 g of the O/W emulsion composition per 1 g (dry weight) of the wipe.

If the amount of liquid is less than the above-identified ranges, the wet wipe may be too dry and may not adequately perform. If the amount of liquid is greater than the above-identified ranges, the wet wipe may be oversaturated and soggy and the liquid may pool in the bottom of the container.

The wet wipes may have a variety of shapes, including circular, oval, square, rectangular, or irregularly shaped.

In embodiments, each wet wipe is generally rectangular in shape and may have any suitable unfolded width and length. For example, the wet wipe may have an unfolded length of from about 10.0 to about 30.0 centimeters and desirably from about 10.0 to about 20.0 centimeters and an unfolded width of from about 10.0 to about 30.0 centimeters and desirably from about 10.0 to about 20.0 centimeters. Typically, each individual wet wipe is arranged in a folded configuration and stacked one on top of the other to provide a stack of wet wipes. Such folded configurations are well known to those skilled in the art and include c-folded, z-folded, quarter- folded configurations and the like. The stack of folded wet wipes may be placed in the interior of a container, such as a plastic tub, to provide a package of wet wipes for eventual sale to the consumer. Alternatively, the wet wipes may include a continuous strip of material which has perforations between each wipe and which may be arranged in a stack or wound into a roll for dispensing.

The wipes may generally have a grammage (paper weight) from 50 to 100 gsm

(g/m 2 ).

In another aspect, a method of making wet wipes which includes

a) providing at least one layer of a nonwoven, a tissue paper or a woven web material, and b) contacting the nonwoven web material, the tissue paper or the woven web with an oil-in-water O/W emulsion composition as disclosed, such that a wet wipe, for example, a wet wipe according to an embodiment of the present invention is produced.

The method of providing wet wipes may further include a step of c) cutting the nonwoven, tissue paper or woven web material obtained at the end of step b).

In another embodiment, the method may further include providing a second nonwoven, tissue paper or woven web material layer of material.

In another embodiment, the method further includes providing a third nonwoven, tissue paper or woven layer of material in facing relation with the first layer to sandwich the second layer of material between the first and third layers of material to provide the layered, nonwoven, tissue paper or woven web material basesheet.

The first and third layer (when a third layer is present) may include coform layers of polyethylene fibers and natural fibers and the second layer (when a second layer is present) may include a coform layer of polypropylene fibers and natural fibers.

In an embodiment of the method, in step b) the contact between the single or multi-layered nonwoven, tissue paper or woven web material and the oil-in-water emulsion composition of the invention may be made by applying, absorbing into, by impregnating or otherwise wetting the web material with the oil-in-water emulsion composition of the invention. In particular, the wet wipes of the invention may be made by applying the O/W emulsion composition by methods known to such as spraying, roller coating, bath, spin coating and the like.

The O/W emulsion composition may be applied as such without prior heating.

In an embodiment, the O/W emulsion composition is applied in an amount of 2 to 4 g per gram of treated surface. The amount may be doubled if the O/W emulsion composition is applied to both surfaces of the wipe. The weight ratio in the oil-in-water emulsion composition/ web (single or multi-layered, dry weight) may be 150 to 400%, or 270 to 340% by weight, based on the dry weight of the wet wipe.

The composition may also be applied directly on the skin to be cleansed, and then rinsed off with water or applied on a cotton pad or a tissue paper (single or multi ply) to cleanse the skin. However, these are not a preferred embodiment.

In comparison to direct application of the composition on the skin, wet wipes as disclosed have several benefits among which: - Enhancing the cleansing properties to remove, for example, dirt, make-up and dead skin cells and protecting the skin from dryness and irritation,

- The long lasting moisturization and feeling of comfortable cleanliness while avoiding a greasy or oily feeling on the skin,

- The hydration of the skin tissue,

- High softness/smoothness of the wipes and their high resistance to disruption in use.

- Providing an O/W emulsion composition that is relatively easy and cost efficient to prepare.

Furthermore, the wet wipes have the advantage of delivering a pre-measured dose of an oil-in-water emulsion composition according to an embodiment ensuring the cleansing properties and performance of the wipes.

Other advantages and features of embodiments of the present invention may be better understood with respect to the following examples given for illustrative purposes.

EXAMPLES EXAMPLES 1 to 2: Compositions according to embodiments of the invention

Compositions nos. 39, and 34 according to embodiments of the invention were prepared in a conventional manner, for example, by incorporating the oily phase (phase B) under shearing, in water phase (phase A) at room temperature (20°C ± 5°C) and/or under slight heating (for example, 40°C or less) as indicated below, and tested.

The amount of each component of the composition is given in % by weight relative to the total weight of the composition. The pH of the different oil-in-water emulsion compositions is 5.3 ± 0.2.

Phase A

Phase A is prepared by dispersing the gelling agent in the solvent under high stirring (for example, 1500-2000 rpm) for 15-20 minutes. The other ingredients, i.e. emollient(s), humectant(s) when present, preservative(s) are then dispersed thereto. The resulting mixture is homogenized under stirring to yield a limpid, colorless and odorless blend.

Phase B

In Phase B, all the ingredients, i.e. emulsifier(s), emollient(s) and preservative(s) are placed in a container. Said container is heated to a temperature of 40°C or less (for example, 35 to 40 °C) and homogenized. The resulting blend is limpid, may be slightly colored (for example, in the present blends a slightly yellow color, and may have a characteristic odor (for example, in the present blends, a characteristic odor of Beautyderm WW). Phase C

With Phase C, the pH of the solution is adjusted to 5.3 ± 0.2 with buffering agent.

Phase B is incorporated in Phase A, under high shearing, to yield an oil-in-water emulsion composition and the pH is adjusted with Phase C to obtain a final pH of 5.3 ± 0.2.

EXAMPLES 3 to 6: Compositions according to embodiments of the invention

Compositions nos. 21, 37, 40 and 52 according to embodiments of the invention were prepared in a conventional manner, for example, by incorporating the oily phase (phase B) under shearing, in water phase (phase A) at room temperature (20°C ± 5°C) and/or under slight heating (for example, 40°C or less), following the procedure indicated above for examples 1-2, and tested.

The amount of each component of the composition is given in % by weight relative to the total weight of the composition. The pH of the different compositions is 5.3 + 0.2. Phase A

Phase B

Phase C

EXAMPLE 7: Preparing wet wipes according to embodiments of the invention

The emulsion is impregnated on a spunlace non-woven, called Fibrella MI60021050, from Suominen, consisting in a blend of 65% viscose and 35% PET, with a 50gsm grammage.

The roll of nonwoven is first cut in 4 identical pieces. Then, the substrate is passed on a roll, where the emulsion is sprayed continuously by the bottom of the susbtrate, while progressing on the line. When impregnated, the substrate is folded, and cut.

After that, stack of 25 wipes are built by the machine, then packed in flowpacks. Method 1: Measure of the stability of the composition

The stability of the composition is its capacity to remain identical or close to its initial specifications, over time, under different stress conditions. The characteristics of a product are described at TO and confirmed 24h after its production.

During this test, the composition is exposed to different conditions of stress, temperature, humidity and sunlight, as described below, with different check point controls.

The test at 40°C for 3.5 months is an accelerated test to simulate and predict what could happen after 3 years, room temperature (20+5 °C).

The organoleptic (aspect, color, odor) and physical-chemical (pH, viscosity) characteristics of a composition are determined, at different stages, by the following tests methods.

The assessment of product stability includes the results of this study but also the defined use of the wet wipe, as well as its expected shelf life (transportation, geographical area of commercialization, application, etc.).

The results for each composition are indicated in the table below.

The stability of the O/W emulsion compositions according to embodiments of the instant invention is improved by an optimized ratio of oils/emulsifiers, as well as the incorporation of the gelling agent, compared to a similar formula on the market. Method 2: Measure of the makeup removal efficiency

The objective is to measure the make-up removal efficiency of wet wipes impregnated with the emulsion compositions of embodiments of the invention and compare them with wet wipes currently on the market.

The measurements are made with a spectrophotometer or a colorimeter both from Minolta. The method is about measuring color. It compares the difference of color between a non-treated area on the skin (initial measure taken as a reference), a skin area where make-up is applied, and the same area after being cleaned by the tested product, in order to calculate a percentage of make-up removal efficiency for different types of make up.

The test is done on a panel of 20 persons, and 4 make-ups are tested: face powder, lipstick, mascara, khol pencil (all waterproof). The application of the make-up is standardized, as well as the“make-up removal” part with the wet wipes. A certain area on the forearm of each panel test person is defined and sufficient make-up is added to the defined area so that the surface of the defined area is fully covered with make-up. Treated and non-treated areas are defined the same way on forearms. After application of make-up on the skin areas that are to be treated, said areas are left to dry for few minutes. 5 wipings are performed with the tested product to remove the make-up.

A measure is taken on each area before application of makeup, after application of makeup and after cleaning the treated area. The difference between colorimetric or spectrophotometric measure is calculated to obtain a DE, then converted in percentage of efficiency.

Make-up removal properties is brought by ingredients with surfactant properties, i.e. the emulsifier and/or surfactant, and also by ingredients that can solubilize make-up, such as emollients.

Method 3: Measure of hydration of the outer layer of the epidermis (stratum corneum)

Several methods exist to measure the skin moisturization. Comeometry is one of the most commonly used in cosmetology. This technology is used to measure the hydration of the outer layer of the epidermis (stratum comeum). This method is based on the skin electrical conductivity measurement. The dielectric constant of the skin will change with water content. Those changes can be measured with a comeometer, which measures the electrical capacity of the skin in contact with the sensor and then converted into arbitrary units of hydration. It follows the equation below:

Z = [Rx 2 + (1/2pKc) 2 ] 1/2 with

- Z being the impedance;

- Rx bring the resistance (=1/Z);

- f being the current frequency, and

- Cx being the capacity.

Repeated measurements of the electrical capacity of the skin allow to assess the effect of cosmetic products on skin moisturization, by comparison with a non-treated area (without product) and with measurements carried out before the tested cosmetic product is applied.

The comeometer used is a Comeometer CM 825, from Caourage and Khazaka electronic GmbH.

Measurements must be done in a standardized way with a defined area on each forearm of the panel test persons, in a room where temperature and humidity are controlled, to avoid any external influence.

The objective here is to assess the moisturizing efficacy of the wet wipes, 8 hours and preferably 12 hours after a single standardized application on a defined area on the forearm. The wet wipes are tested on groups of 10 to 20 persons.

Panelists stay in a temperature and humidity controlled room, 30 minutes before the experiment. A non-treated and a treated area are defined on each panelist’s forearm. A measurement is taken on both areas before application of the said wipe.

After that, a standardized quantity of the composition which is sufficient to fully cover the defined area on each forearm of the panel test persons is applied on the defined area whereby the defined area gets wet (3 successive passages of the wet wipe including said composition). Three measurements are taken each time on each defined area. The average of these three values is calculated and kept as the experimental value of the electrical capacity. This result is then converted into a percentage of moisturization of the skin.

As a conclusion, all the compositions tested bring at least 8 hours of moisturization after a single application. For compositions 39, 40 and 52 for which the efficacy of the wet wipes including them was tested after 12 hours, it can be seen that moisturization is still significant after 12 hours. Method 4: Measure of the Trans-Epidermal Water Loss (stratum corneum)

The skin is made of three primary layers: the epidermis, the outermost layer; the dermis or middle layer; and the hypodermis, the undermost layer. When water passes from the dermis through the epidermis and evaporates from the skin’s surface, this is known as transepidermal water loss (TEWL). From a clinical standpoint, TEWL measurements are of great importance in evaluating skin barrier functionality.

The cutaneous barrier acts as a regulator in skin water balance. Yet, certain factors, such as injury, very high or low-humidity conditions, chemicals, can damage the skin’s barrier function, and thus can affect TEWL levels. When the cutaneous barrier is damaged, the water exchange regulation system becomes destabilized. This means that water migrates more easily to the outside environment, increasing Trans Epidermal Water Loss (TEWL). However, if the condition of the cutaneous barrier improves, water loss decreases as the water exchange regulation mechanism recovers its balance.

TEWL is also affected by environmental factors such as humidity, temperature, the time of year (season variation) and the moisture content of the skin (hydration level). Therefore, measurement must be made in an acclimatized room, to avoid such influences.

Here, the capacity of the wet wipes to maintain/improve/strengthen the skin barrier by Trans Epidermal Water Loss measurements is evaluated.

TEWL measurements are made with an equipment called Aquaflux AF100 from BIOX, using the condenser-chamber method of measurement. Panelists stay in a temperature and humidity controlled room. A non-treated and a treated area are defined on each panelist’s leg. A measurement is taken on both areas before application of the said wipe.

A standardized quantity of the composition which is sufficient to fully cover the defined area on the forearm of the panel test persons whereby the defined area gets wet is next applied on the defined treated area (3 successive passages of the wet wipe including said composition). Measurements are taken after 1 hour, 2 hours and 4 hours after application of the wipe, on each defined area.

Water loss is calculated by determining the pressure gradient of the water vapor layer surrounding the skin.

As a conclusion, composition no. 52 reinforces the cutaneous barrier integrity up to 2 hours after its application on the skin by the wet wipe, meaning it has a“skin protection” effect. Composition no. 34 has a better performance as it reinforces the cutaneous barrier integrity up to 4 hours after its application on the skin by the wet wipe.