FIELD

The present disclosure relates to a sanitizer composition comprising electrolyzed water.

DEFINITIONS As used in the present disclosure, the following terms are generally intended to have the meaning as set forth below, except to the extent that the context in which they are used to indicate otherwise.

Electrolysis refers to a technique of a chemical change of brine solution by means of electric current in a reactor. Electrolyzed water refers to the electrolysis product of a brine solution, wherein the electrolysis product comprises hypochlorous acid (HOC1), sodium hypochlorite (NaOCl) and sodium chloride (NaCl).

Residual chlorine refers to a concentration of free chlorine in the electrolyzed water.

BACKGROUND The background information herein below relates to the present disclosure but is not necessarily prior art.

Hand sanitizer or sanitizer composition has its application in reducing the risk and exposure to the spread of microorganisms. The sanitizer composition is configured to sanitize hands and food products such as vegetables, and fruits. Most conventional sanitizers are alcohol- based composition, which after a prolonged usage tend to dry the skin surface resulting in the appearance of flakes and cracks in the skin. Further, the conventional sanitizer for food products form a residue on the food product, which if not washed properly can stay on the food product thereby leading to undesirable health issues.

There is, therefore, felt a need for a sanitizer composition that alleviates the aforementioned drawbacks or at least provides a useful alternative. OBJECTS

Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows:

It is an object of the present disclosure to ameliorate one or more problems of the prior art or to at least provide a useful alternative.

An object of the present disclosure is to provide a sanitizer composition comprising electrolyzed water.

Still another object of the present disclosure is to provide a sanitizer composition which is non-alcoholic. Yet another object of the present disclosure is to provide a sanitizer composition that is non toxic and does not cause irritation to the skin.

Still another object of the present disclosure is to provide a sanitizer composition that does not leave behind any toxic residue on food products and hence is safe.

Other objects and advantages of the present disclosure will be more apparent from the following description, which is not intended to limit the scope of the present disclosure.

SUMMARY

The present disclosure relates to a sanitizer composition. The composition can comprise 5 mass% to 50 mass% of electrolyzed water consisting of a free residual chlorine in an amount in the range of 50 ppm to 500 ppm and sodium chloride in an amount in the range of 300 ppm to 7000 ppm; 0 mass% to 20 mass% of at least one additive; and q.s. water. The free residual chlorine can be sourced from sodium hypochlorite and hypochlorous acid present in the electrolyzed water. The sodium hypochlorite can be present in an amount in the range of 45 ppm to 500 ppm and the hypochlorous acid can be present in an amount in the range of 3 ppm to 40 ppm. DETAILED DESCRIPTION

The present disclosure relates to a sanitizer composition comprising electrolyzed water. The embodiments herein and the various features are provided so as to thoroughly and fully convey the scope of the present disclosure to a person skilled in the art and the advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Description of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practised and to further enable those of skill in the art to practise the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the disclosure.

The description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.

The terminology used, in the present disclosure, is only for the purpose of explaining a particular embodiment and such terminology shall not be considered to limit the scope of the present disclosure. As used in the present disclosure, the forms "a,” "an," and "the" may be intended to include the plural forms as well, unless the context clearly suggests otherwise. The terms "comprises," "comprising," “including,” and “having,” are open ended transitional phrases and therefore specify the presence of stated features, integers, steps, operations, elements, modules, units and/or components, but do not forbid the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The particular order of steps disclosed in the method and process of the present disclosure is not to be construed as necessarily requiring their performance as described or illustrated. It is also to be understood that additional or alternative steps may be employed.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed elements. The terms first, second, third, etc., should not be construed to limit the scope of the present disclosure as the aforementioned terms may be only used to distinguish one element, component, region, layer or section from another component, region, layer or section. Terms such as first, second, third etc., when used herein do not imply a specific sequence or order unless clearly suggested by the present disclosure.

Sanitizer compositions reduce the risk, exposure and spread of microorganisms such as bacteria and fungi. The sanitizer composition is configured to sanitize hands and food products such as vegetables, fruit and meat. Most conventional sanitizers are alcohol-based compositions, which after a prolonged usage tend to dry the skin surface resulting in the appearance of flakes and cracks in the skin. Further, conventional sanitizers for food products form a residue on the food product, which if not washed properly can stay on the food product thereby leading to undesirable health issues.

The present disclosure provides a sanitizer composition which may comprise: a. 5 mass% to 50 mass% of an electrolyzed water consisting of: · a free residual chlorine in an amount in the range of 50 ppm to 500 ppm; and

• sodium chloride in an amount in the range of 300 ppm to 7000 ppm; b. 0 mass% to 20 mass% of at least one additive; and c. q.s. water; wherein the mass % of the components is with respect to the total mass of the sanitizer composition.

In an embodiment of the present disclosure, the sanitizer composition comprises: a. 10 mass% to 40 mass% of electrolyzed water consisting of:

• a free residual chlorine in an amount in the range of 100 ppm to 400 ppm; and

• sodium chloride in an amount in the range of 600 ppm to 6000 ppm; b. 0 mass% to 10 mass% of at least one additive; and c. q.s. water; wherein the mass % of the components is with respect to the total mass of the sanitizer composition.

In accordance with the present disclosure, the free residual chlorine is sourced from sodium hypochlorite and hypochlorous acid present in electrolyzed water. The sodium hypochlorite is present in an amount in the range of 45 ppm to 500 ppm and the hypochlorous acid is present in an amount in the range of 3 ppm to 40 ppm.

The sanitizer composition may have a pH in the range of 8 to 8.5. In an exemplary embodiment, the pH of the sanitizer composition is 8.3. The pH in the range of 8 to 8.5 makes the sanitizer composition suitable for sanitizing hands and does not cause irritation to the skin and also makes the sanitizer composition safe for use on food products.

The additive is selected from a stabilizer, a thickener, a defoamer, perfumes, a color and a combination thereof. The stabilizer can be selected from the group consisting of sodium hydroxide, diphosphonic acid and its derivatives, ethylene diamine tetra acetic acid (EDTA), phenacetin, p- Hydroxybenzoic acid methyl ester and a combination thereof. In a preferred embodiment, the stabilizer is sodium hydroxide.

The derivative of diphosphonic acid can be selected from diphosphonic (1-hydroxyethylene) disodium acid and 1-Hydroxyethylene- 1,1 -diphosphonic acid. The thickener can be selected from the group consisting of acrylic acid copolymers, methacrylic acid copolymers, vinyl polymers, polycarboxylic acids, polyimines, polyamides, polyethers, carboxymethylcelluloses, cellulose ethers, xanthans, guar flour, locust bean gum, Carbopol Ultrez 10 (a cross-linked acrylic acid polymer), carboxyvinyl polymer or hydroxypropylmethyl cellulose and a combination thereof.

The defoamer can be at least one selected from the group consisting of an organic-based defoamer and a silicone-based defoamer.

The organic-based defoamer can be at least one selected from the group consisting of polypropylene based polyether dispersions (Sigma antifoam 204), fatty acid esters (Sigma antifoam 0-30), carboxylates, monoamides, phosphoric acid esters, mineral oil blends, diethylene glycol and fluorosurfactants.

The silicone-based defoamer can be at least one selected from the group consisting of siloxane polymers (Sigma antifoams A, B, C, Y-30, SE-15), SILSENSE Copolyol-1 silicone (which is a polyethylene glycol and dimethicone copolyol), hydrophobed silicon/hydrophilic oil mixtures, polydimethylsiloxane polymer with silica and poly die thy lenemethyl silicones.

The perfume can be selected from the group consisting of esters, ethers, aldehydes, ketones, and an essential oil extracted from lemon, pine, green apple, citrus, eucalyptus, lavender and neem. The color can be selected from an organic color and a biodegradable color. In an embodiment, the color is selected from the group consisting of aniline dyes and acridine dyes.

Both aniline and acridine dyes are bacteriostatic in high dilution but have low bactericidal action. Aniline dyes are more active against Gram positive bacteria than Gram negative bacteria whereas acridine dyes are more active against Gram positive bacteria than Gram negative bacteria, and available in gentian violet and brilliant green color.

The aniline dye can be selected from the group consisting of crystal violet, brilliant green and malachite green colours.

The acridine dye can be selected from the group consisting of acriflavine, euflavine, proflavine and aminacrine. Colour can be added to the sanitizer composition to enhance user experience. The colours are selected such that they do not affect the efficacy of the electrolyzed water.

Other additives such as stain removers, viscosity enhancers, and rheology modifiers can be further added to the sanitizer composition to improve the properties of the sanitizer composition. The sanitizer composition of the present disclosure can be in a form selected from hand sanitizer, hand rub and skin care formulation.

In an exemplary embodiment of the present disclosure, the sanitizer composition comprises 40 mass% of the electrolyzed water consisting of 400 ppm of the free residual chlorine and 5400 ppm of sodium chloride; and 60 mass % of tap water, wherein the mass % of the components is with respect to the total mass of the sanitizer composition. The free residual chlorine is sourced from sodium hypochlorite and hypochlorous acid present in the electrolyzed water in an amount of 390 ppm and 30 ppm respectively.

In another exemplary embodiment of the present disclosure, the sanitizer composition comprises 10 mass% of the electrolyzed water consisting of 100 ppm of the free residual chlorine and 1350 ppm of sodium chloride; and 90 mass % of tap water, wherein the mass % of the components is with respect to the total mass of the sanitizer composition. The free residual chlorine is sourced from sodium hypochlorite and hypochlorous acid present in the electrolyzed water in an amount of 49 ppm and 4 ppm respectively.

The electrolyzed water can be obtained by electrolyzing a brine solution.

The electrolyzed water can be produced by a process of electrolyzing brine having a controlled concentration and dilution, which ensures elimination of production of highly reactive and toxic by-products.

The conventional sanitizers tend to leave behind certain toxic residues on the skin such as methanol, propanol, benzene, acetaldehyde, and the like. However, the sanitizer composition of the present disclosure does not leave behind any toxic residues on the skin.

Chlorinated water is highly efficient as disinfectant where bacteria, viruses, fungi and other microbes are killed. Since, the amount of concentration of the residual chlorine in the electrolyzed water can be controlled during the process of electrolysis itself, the chemical constitution of the sanitizer composition, of the present disclosure, can be varied as per the application.

The foregoing description of the embodiments has been provided for purposes of illustration and not intended to limit the scope of the present disclosure. Individual components of a particular embodiment are generally not limited to that particular embodiment, but, are interchangeable. Such variations are not to be regarded as a departure from the present disclosure, and all such modifications are considered to be within the scope of the present disclosure.

The present disclosure is further described in light of the following experiments which are set forth for illustration purpose only and not to be construed for limiting the scope of the disclosure. The following experiments can be scaled up to industrial/commercial scale and the results obtained can be extrapolated to the industrial scale.

EXPERIMENTAL DETAILS

Experiment 1: Preparation of the Sanitizer composition in accordance with the present disclosure

Example 1: Preparation of the Sanitizer composition (with 40% electrolyzed water)

400 ml of electrolyzed water, in accordance with the present disclosure consisting of 400 ppm of free residual chlorine and 5400 ppm of sodium chloride was mixed with 600 ml of tap water to obtain the sanitizer composition having a pH of 8.3. Example 2: Preparation of the Sanitizer composition (with 10% electrolyzed water)

100 ml of electrolyzed water, in accordance with the present disclosure consisting of 100 ppm of free residual chlorine and 1350 ppm of sodium chloride was mixed with 900 ml of tap water to obtain the sanitizer composition having a pH of 8.

Example 3: Sanitizer composition with specific additives was prepared by following the same procedure as in Example 1.

Experiment 2: Anti-microbial activity of the sanitizer composition in accordance with the present disclosure

The sanitizer composition of examples 1 and 2 were evaluated for their anti-microbial activity (bacterial, yeast and mould count) by using test parameters such as total bacteria count and Yeast and mould count. The samples (hand swab) were collected before using the sanitizer composition and after using the sanitizer composition of Example 1 and readings for the total bacteria count and Yeast and mold count were recorded. The results are summari ed in Table 1.

Table 1: Evaluation of Anti-bacterial and anti-fungal activity of the sanitizer composition of examples 1 to 2.

Total bacterial count and fungal count after using the sanitizer composition of the present disclosure (Examples 1 and 2) were significantly reduced by 99%, as compared to the bacterial and fungal count before using the sanitizer composition of the present disclosure.

Experiment 3: Dermal corrosion. Eve irritation and Acute Oral toxicity study of the sanitizer composition in accordance with the present disclosure

The sanitizer composition of example 1 was tested for dermal corrosion, eye irritation and acute oral toxicity in the white rabbits. The results are summari ed in Table 2.

Table 2:

The Applicants are conducting further experimentation in relation to the effectivity of various concentrations of the ingredients of the sanitizer composition and crave leave to furnish the details of these studies during the prosecution of the application by way of clarification and explanation.

TECHNICAL ADVANCEMENTS

The present disclosure described herein above has several technical advantages including, but not limited to, the realization of a sanitizer composition, which:

• is a non-alcoholic composition;

• is non-toxic and does not cause irritation to skin and eyes; and

• does not leave behind non-toxic residues on skin/hands, and on food products. Throughout this specification the word “comprise”, or variations such as “comprises” or “comprising, will be understood to imply the inclusion of a stated element, integer or step,” or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps. The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the invention to achieve one or more of the desired objects or results. While certain embodiments of the inventions have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the inventions. Variations or modifications to the formulation of this invention, within the scope of the invention, may occur to those skilled in the art upon reviewing the disclosure herein. Such variations or modifications are well within the spirit of this invention.

The numerical values given for various physical parameters, dimensions and quantities are only approximate values and it is envisaged that the values higher than the numerical value assigned to the physical parameters, dimensions and quantities fall within the scope of the invention unless there is a statement in the specification to the contrary.

While considerable emphasis has been placed herein on the specific features of the preferred embodiment, it will be appreciated that many additional features can be added and that many changes can be made in the preferred embodiment without departing from the principles of the disclosure. These and other changes in the preferred embodiment of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.