Field of the invention

The present invention relates to hand dishwash compositions comprising carbon from carbon capture.

Background of the invention

Household cleaning activities involve the use of a detergent product and water to rinse off the detergent product and finish the cleaning process. These activities are typically performed daily, often more than once a day, such as dish washing. That is, hard surface cleaning, dishwashing and other household cleaning activities are time consuming activities and, ideally, can be optimized when using products with excellent detergency and soil removal capacity.

Hand dishwash compositions may comprise ingredients comprising ethoxylate groups, such as alkyl ether sulphate anionic surfactant, alcohol ethoxylate nonionic surfactant and polyethylene glycol ingredients. Hand dishwash compositions usually also comprise inorganic salts to thicken the composition and/or aid in cleaning performance. Some consumers prefer hand dishwash products that are fragranced and coloured.

Improvement in fragrance performance/choice is highly desirable. Fragrances are often the most persuasive sensory component in a product, particularly upon first use, e.g. by squeezing or pumping product out of a bottle containing such product. The behavior of fragrances is strictly controlled such that during cleaning it is perceivable, but that, with or without rinsing, not too much fragrance remains on dishware interfering with drinks and food being consumed.

Stability is also an important feature of hand dishwash products. Instability is indicated by separation, increased or decreased viscosity, a change in the fragrance, flocculation or a change in the aesthetics, such as a color change.

Finally, the aesthetics of a hand dishwash product are important. In particular the color of the product. Aesthetics and stability are very closely linked; poor aesthetics can indicate poor stability. Equally aesthetics can be linked to the fragrance composition within a product. Nowadays, some consumers prefer cleaning products with a good environmental profile. That is, they prefer products that are ‘eco-friendly’ and have less or no impact on the environment when the product is used but also when the product is manufactured. There are cleaning products on the market that claim to be ‘eco- friendly’, but it is not always easy for consumers to understand what those positive terms really stand for or trust the credibility of such claim. Some consumers prefer such products to have certain tangible characteristics that provide trust and credibility that the product is more ‘eco-friendly’. Some consumers still associate ‘eco-friendly’ cleaning products with less efficacious cleaning products.

In view of the above, there remains a need for a hand dishwash composition with a good environmental profile without compromising consumer satisfaction in terms of fragrance, stability, aesthetics and/or cleaning performance. Summary of the invention

We have found that hand dishwash compositions comprising one or more ingredient comprising at least one ethoxylate unit and at least one carbon derived from carbon capture provide for an improved environmental profile of the product and/or allow for a tangible reason to believe claimed environmental credentials whilst maintaining or improving consumer satisfaction.

Accordingly, in a first aspect the invention relates to a hand dishwash composition comprising, a. inorganic salt selected from the group consisting of sodium chloride, magnesium sulphate, sodium sulphate and combinations thereof; and b. ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture.

The invention further relates to a method of preparing a composition according to the invention comprising the steps: a. obtaining an ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture; b. incorporating said ingredient into a hand dishwash composition. The invention also relates to use of an ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture to create a tangible eco- marker in a hand dishwash composition according to the invention. Detailed description of the invention

Any feature of one aspect of the present invention may be utilized in any other aspect of the invention. The word ‘comprising’ is intended to mean ‘including’ but not necessarily ‘consisting of or ‘composed of. In other words, the listed steps or options need not be exhaustive. Except in the operating and comparative examples, or where otherwise explicitly indicated, all numbers in this description indicating amounts of material or conditions of reaction, physical properties of materials and/or use are to be understood as modified by the word ‘about’. Numerical ranges expressed in the format ‘from x to y’ are understood to include x and y. When for a specific feature multiple preferred ranges are described in the format ‘x to y’, it is understood that all ranges combining the different endpoints are also contemplated. Unless specified otherwise, amounts as used herein are expressed in percentage by weight based on total weight of the composition and is abbreviated as ‘wt%’. The use of any and all examples or exemplary language e.g. ‘such as’ provided herein is intended merely to better illuminate the invention and does not in any way limit the scope of the invention otherwise claimed. Room temperature is defined as a temperature of about 20 degrees Celsius.

The term ‘virgin fossil fuels’ refers to fossil fuel sources (coal, crude oil, natural gas) which have not been used for any other purpose, i.e. has not been burnt for energy, or is not the waste gas from an industrial process.

The compositions described herein comprise ingredients comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture. To obtain these ingredients from carbon capture, carbon must be captured, separated (where required) and utilized or transformed into an ingredient for use in a hand dishwash composition. The capture, separation and transformation may happen in one continuous process or may be separate steps carried out at different locations. Carbon capture and separation

Carbon capture refers to the capture or sequestration of C1 carbon molecules (e.g. carbon monoxide, carbon dioxide, methane or methanol). By capturing the carbon molecules, they are removed from or prevented from entering the environment. Carbon sourced from carbon capture contrasts with carbon from virgin fossil fuels (crude oil, natural gas, etc.), in that captured carbon has already been used at least once; for example captured carbon may have been burned to produce energy and is captured to enable a second use of the carbon, whereas carbon from virgin fossil fuels have been extracted for that singular purpose. By capturing and utilizing carbon, carbon can be used again, leading to less carbon in the atmosphere and reduced use of virgin fossil fuels. The carbon captured may be in any physical state, preferably as a gas.

Carbon capture may be point source carbon capture or direct carbon capture. Direct carbon capture refers to capturing carbon from the air, where it is significantly diluted with other atmospheric gases. Point source carbon capture refers to the capture of carbon at the point of release into the atmosphere. Point source carbon capture may be implemented for example at steal works, fossil fuel or biomass energy plants, ammonia manufacturing facilities, cement factories, etc. These are examples of stationary point source carbon capture. Alternatively the point source carbon capture may be mobile, for example attached to a vehicle and capturing the carbon in the exhaust gases. Point source carbon capture may be preferable due to the efficiency of capturing the carbon in a high concentration. Preferably, the carbon is captured from a point source.

There are various methods of capturing carbon from industrial processes, examples include:

Capturing carbon from flue gasses following combustion. This may be referred to as post combustion carbon capture. For example this may be implemented to capture carbon from the flue gasses at a fossil fuel power plant.

Capturing carbon pre-combustion. In these processes, fossil fuels are partially oxidized. Syngas comprising carbon monoxide, hydrogen and some carbon dioxide is produced. The carbon monoxide is reacted with water (steam) to produce carbon dioxide and hydrogen. The carbon dioxide can be separated, and the hydrogen used as fuel. Oxy-fuel combustion, in which fuel is burned in oxygen rather than air. The flue gas consists mainly of carbon dioxide and water vapor. The water is separated and the carbon dioxide collected.

Once a source of carbon has been captured, the carbon molecules need to be isolated from the other chemicals with which they may be mixed. For example oxygen, water vapor, nitrogen etc. In some point source processes this step may not be required since a pure source of carbon is captured. Separation may involve biological separation, chemical separation, absorption, adsorption, gas separation membranes, diffusion, rectification or condensation or any combination thereof.

A common method of separation is absorption or carbon scrubbing with amines.

Carbon dioxide is absorbed onto a metal-organic framework or through liquid amines, leaving a low carbon gas which can be released into the atmosphere. The carbon dioxide can be removed from the metal-organic framework or liquid amines, for example by using heat or pressure.

C1 carbon molecules sourced from carbon capture and suitably separated from other gases are available from many industrial sources. Suitable suppliers include Ineos. Capturing carbon directly from the air may for example involve passing air over a solvent which physically or chemically binds the C1 molecules. Solvents include strongly alkaline hydroxides such as potassium or sodium hydroxide. For example air may be passed over a solution of potassium hydroxide to form a solution of potassium carbonate. The carbonate solution is purified and separated to provide a pure CO2 gas. This method may also be employed in point source capture. An example of a direct air capture process is that employed by carbon engineering.

Carbon utilization or transformation

Once the C1 carbon molecules have been capture and separated, they can then be transformed into useful ingredients for use in a hand dishwash composition. Various methods may be used to transform the captured C1 molecules to useful components. The methods may involve chemical process or biological processes, such as microbial fermentation. Preferably the C1 molecules are transformed into: i. Short chain intermediates such as methanol, ethanol, ethylene, ethylene oxide; or ii. Hydrocarbon intermediates such as hydrocarbon chains: alkanes, alkenes, etc.

These can be converted further to make the components of surfactants, using well known chemistries e.g. chain growth reactions etc to: longer chain alkenes/olefins, alkanes, longer chain alcohols, aromatics and ethylene, ethylene oxide which is an excellent starter chemical for various ingredients. Preferably the C1 molecules are transformed into short chain intermediates, more preferably ethanol, ethylene or ethylene oxide. i. Short chain intermediates:

One suitable example of transformation is a process in which a reactor converts carbon dioxide, water and electricity to methanol or ethanol and oxygen. An example of this process is provided by Opus 12.

An alternate suitable example of transformation is the conversion of carbon dioxide to ethanol using a catalyst of copper nanoparticles embedded in carbon spikes. An alternate suitable example of transformation is the use of biological transformation which involves fermentation of the Ci carbon by micro-organisms such as Crfixing bacteria to useful chemicals. The ability of micro-organisms to grow on CO as a sole carbon source was first discovered in 1903. This was later determined to be a property of organisms that use the acetyl coenzyme A (acetyl CoA) biochemical pathway of autotrophic growth (also known as the Woods-Ljungdahl pathway and the carbon monoxide dehydrogenase / acetyl CoA synthase (CODH/ACS) pathway). A large number of anaerobic organisms including carboxydotrophic, photosynthetic, methanogenic and acetogenic organisms have been shown to metabolize CO to various end products, namely CO2, H2, methane, n-butanol, acetate and ethanol. Preferably anaerobic bacteria such as those from the genus Clostridium are used to produce ethanol from carbon monoxide, carbon dioxide and hydrogen via the acetyl CoA biochemical pathway. There are a variety of microorganisms that can be used in a fermentation processes, particularly preferred are anaerobic bacteria such as Clostridium ljungdahlii strain PETC or ERI2, which can be used to produce ethanol. ii. Hydrocarbon intermediates: One suitable example is the Fischer-Tropsch process. Carbon dioxide and carbon monoxide can be chemically transformed to liquid hydrocarbons by the Fischer- Tropsch process, using hydrogen and a metal catalysis. Carbon dioxide feedstocks must first be converted to carbon monoxide by a reverse water gas shift reaction. An alternate method for transformation into hydrocarbon intermediates solar photothermochemical alkane reverse combustion reactions. These are a one-step conversion of carbon dioxide and water into oxygen and hydrocarbons using a photothermochemical flow reactor. Further examples of carbon capture technologies suitable to generate the ethanol stock for use in manufacturing ethoxy sub-units for use in the surfactants described herein are disclosed in WO 2007/117157, WO 2018/175481, WO 2019/157519 and WO 2018/231948. Ingredients comprising an ethylene oxide group

The compositions described herein comprise ingredients comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture. Preferably the compositions comprise 0.01 to 50 wt% ingredients comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture, more preferably 0.01 to 30 wt%, even more preferably 0.1 to 20 wt% and most preferably 0.1 to 5 wt% ingredients comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture by weight of the composition.

The carbon derived from carbon capture may be found anywhere within the chemical structure of the ingredient molecule. Preferably the carbon derived from carbon capture forms part of an alkyl chain or an ethoxylate group, preferably an ethoxylate group.

Preferably at least 50 wt% of the carbon atoms are obtained from carbon capture, more preferably at least 70 wt% and most preferably all of the carbon atoms are obtained from carbon capture. Preferably, less than 90 wt%, preferably less than 10 wt% of the carbon atoms within the ingredient are obtained directly from virgin fossil fuels.

Carbon located in alkyl chain: Where the carbon derived from carbon capture is located in an alkyl chain, preferably on average at least 50 wt% of the carbons in the alkyl chain are derived from carbon capture, more preferably at least 70 wt%, most preferably all of the carbons in the alkyl chain are derived from carbon capture. As described above, suitable carbon chains can be obtained from a Fischer-Tropsh reaction. The feedstock for the Fischer-Tropsch may be 100% carbon obtained from carbon capture, or may be a mixture of carbon from different sources. For example carbon gases from natural gas could be used, although this is not preferable. Preferably the alkyl chain comprises less than 10 wt% carbon obtained directly from virgin fossil fuels more preferably the alky chain comprises no carbon obtained directly from virgin fossil fuels.

Alternatively the alkyl chain may be a combination of alkyl groups from carbon capture and alky groups from triglycerides, preferably triglycerides are obtained from plants, such as palm, rice, rice bran, sunflower, coconut, rapeseed, maze, soy, cottonseed, olive oil, etc.

Carbon located in ethoxylate group: Where the carbon derived from carbon capture is located on an ethoxylate group, preferably on average at least 50 wt% of the ethoxylate carbons in the molecule are derived from carbon capture, more preferably at least 70 wt%, most preferably all the ethoxylate carbons in the molecule are derived from carbon capture. In a single ethoxylate monomer, one or both carbons may be carbons obtained from carbon capture, preferably both carbons are carbons obtained from carbon capture.

Preferably, more than 10 wt%, preferably more than 90 wt% of the ethoxylate groups comprise carbon atoms obtained from carbon capture based sources. Alternate sources of carbon include plant based carbon, for example ethanol obtained from the fermentation of sugar and starch (i.e. ‘bio’ ethanol). The ethoxylate groups may comprise carbons from virgin fossil fuels, however this is not preferable. Preferably, less than 90 wt%, preferably less than 10 wt% of the ethoxylate groups comprise carbon atoms obtained directly from virgin fossil fuels. To produce ethoxylates from carbon capture, first ethanol produced as outlined above is dehydrated to ethylene. This is a common industrial process. The ethylene is then oxidized to form ethylene oxide.

Depending on the desired material, different routes are available.

If an alcohol ethoxylate is desired, the ethylene oxide can be reacted with a long chain fatty alcohol via a polymerization type reaction. This process is commonly referred to as ethoxylation and gives rise to alcohol ethoxylates. Preferably the long chain fatty alcohol comprises carbon from carbon capture and/or from a plant source. More preferably the long chain fatty alcohol comprises only carbon from carbon capture and/or from a plant source. Most preferably and fatty alcohol comprises only carbon from carbon capture.

If an alkyl ether sulphate is desired the corresponding alcohol ethoxylate can be sulphonated to create the anionic surfactant.

If a polyethylene glycol is desired, the ethylene oxide can be polymerized, for example in the presence of water and a catalyst to yield a polyethylene glycol chain. Preferably all carbons within the ingredient molecule are derived from a plant source or carbon capture. Most preferably, all carbons are derived from carbon capture.

Preferably the ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture is selected from alkyl ether sulphates, alcohol ethoxylates and polyethylene glycols.

Alkyl ether sulphates:

Alkyl ether sulphates have the formula: (Ri-(0R’)n-0-S0 ₃ -)xM ^x+ , wherein: Wherein Ri is an alkyl chain. When the ingredient comprising at least one ethoxylate unit and at least one carbon derived from carbon capture is an alkyl ether sulphate, the carbon obtained from carbon capture may be located in the alky chain or the ethoxylate group. Preferably both the alkyl chain and ethoxylate comprise carbon obtained from carbon capture.

Ri preferably is saturated or unsaturated Ce-Cie, preferably C12-C14 alkyl chain; preferably, Ri is a saturated Ce-Cie, more preferably a saturated C12-C14 alkyl chain;

R’ is ethylene; n is from 1 to 18, preferably from 1 to 15, more preferably from 1 to 10, still more preferably from 1 to 5; x is equal to 1 or 2;

M ^x+ is a suitable cation which provides charge neutrality, preferably sodium, calcium, potassium, or magnesium, more preferably a sodium cation.

Alcohol ethoxylates:

Alcohol ethoxylates have the general formula:

R-Y-(C2H ₄ 0) _Z -CH2-CH2-0H Wherein R is an alkyl chain. When the ingredient comprising at least one ethoxylate unit and at least one carbon derived from carbon capture is an alcohol ethoxylate, the carbon obtained from carbon capture may be located in the alky chain or the ethoxylate group. Preferably both the alkyl chain and ethoxylate comprise carbon obtained from carbon capture.

R is preferably 8 to 60, more preferably 10 to 25, even more preferably 12 to 20 and most preferably 16-18. Y is selected from:

-O- , -C(0)0- , -C(0)N(R)- or -C(0)N(R)R- and is preferably -O-

Z is preferably 2 to 100, more preferably 3 to 50, even more preferably 4 to 30, still even more preferably 4 to 10, and most preferably 5 to 7, calculated as a molar average.

Particularly preferably R is 16-18 and Z is 5-7. These ingredients are particularly advantageous in so called dilute at home products, in which they aid the spontaneous mixing on the concentrated product and water, when the consumer dilutes at home.

Polyethylene glycols: Polyethylene glycols (PEGs) have a general formula: n is preferably 2 to 200, more preferably 2 to 100, even more preferably 2 to 40, 2 to 30 and most preferably 2 to 20. The weight average molecular weight of the PEG is preferably 100 to 1000, more preferably 100 to 800, most preferably 100 to 600.

The PEG may solely comprise carbon from carbon capture or may comprise carbon from carbon capture in combination with carbon from other sources, as described above.

Materials substituted with polyethylene glycols:

These are materials obtained by the reaction of PEG or ethylene oxide with another ingredient. For example the reaction of ethylene oxide and castor oil results in a PEG hydrogenated castor oil. Preferably these materials are hydrogenated castor oils. Preferably the castor oil is hydrogenated with 10 to 80 moles of ethylene oxide, preferably 20 to 60 moles of ethylene oxide. A particularly preferable ingredient is PEG 40 hydrogenated castor oil. Percent modern carbon

The percentage modern carbon (pMC) level is based on measuring the level of radiocarbon (C14) which is generated in the upper atmosphere from where it diffuses, providing a general background level in the air. The level of C14, once captured (e.g. by biomass) decreases over time, in such a way that the amount of C14 is essentially depleted after 45,000 years. Hence the C14 level of fossil-based carbons, as used in the conventional petrochemical industry is virtually zero.

A pMC value of 100% biobased or biogenic carbon would indicate that 100% of the carbon came from plants or animal by-products (biomass) living in the natural environment (or as captured from the air) and a value of 0% would mean that all of the carbon was derived from petrochemicals, coal and other fossil sources. A value between 0-100% would indicate a mixture. The higher the value, the greater the proportion of naturally sourced components in the material, even though this may include carbon captured from the air.

The pMC level can be determined using the % Biobased Carbon Content ASTM D6866-20 Method B, using a National Institute of Standards and Technology (NIST) modern reference standard (SRM 4990C). Such measurements are known in the art are performed commercially, such as by Beta Analytic Inc. (USA). The technique to measure the C14 carbon level is known since decades and most known from carbon dating archaeological organic findings.

In one embodiment, the ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture comprises carbons from point source carbon capture. These ingredients preferably have a pMC of 0 to 10%.

In an alternate embodiment, the ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture comprises carbons from direct air capture. These ingredients preferably have a pMC of 90 to 100%. Hand dishwash composition

Dish means a hard surface as is intended to be cleaned using a hand dishwash composition and includes dishes, glasses, pots, pans, baking dishes and flatware made from any material or combination of hard surface materials commonly used in the making of articles used for eating and/or cooking.

The hand dishwash composition of the present invention comprises: a. inorganic salt selected from the group consisting of sodium chloride, magnesium sulphate, sodium sulphate and combinations thereof; and b. ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture.

Preferably the hand dishwash composition of the present invention comprises: a. inorganic salt selected from the group consisting of sodium chloride, magnesium sulphate, sodium sulphate and combinations thereof; and b. ingredient comprising at least one ethoxylate unit and at least one carbon derived from carbon capture.

We have found that inclusion of ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture allows for improved consumer satisfaction in terms of fragrance, stability, aesthetics and/or cleaning performance.

It was surprisingly found that inclusion of such ingredient not only improves the ecological profile of the product, but also allows for the creation of tangible markers as proof of inclusion of eco friendly ingredients without negatively influencing the performance or other characteristics of the product. For the purpose of the invention such markers are defined as ‘tangible eco-marker’ or ‘eco-marker’.

For example, inclusion of such ingredient not only improves the ecological profile of the product, but also imparts a distinguishable overall fragrance perception, alone or in combination with other ingredients, that can be act as an eco-marker. Thereby providing assurance to a consumer concerning the credibility of the eco friendly ingredients and total product upon use. Another example of such a tangible eco-marker is that inclusion of ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture allows for calculation of pMC (as discussed above) that as such can act as an eco-marker according to the present invention. The pMC value can for example be used on pack as a tangible eco-marker.

Inorganic salts

Preferably the composition comprises 0.1 to 5% by weight of an inorganic salt selected from the group consisting of sodium chloride, magnesium sulphate, sodium sulphate and combinations thereof. Inorganic salts advantageously control the viscosity of the hand dishwash compositions and may aid the cleaning performance of a hand dishwash product.

More preferably, the composition comprises 0.5 to 4%, even more preferably 1.0 to 3%, and still even more preferably 1.5 to 2.5 % by weight of an inorganic salt.

Aqueous composition

The composition of the present invention is an aqueous composition, that is to say, the composition comprises water. The amount of water will depend on the desired concentration of the other ingredients. Preferably the composition comprises 50 to 99% wt water, for example 60 to 92% wt water, more preferably not less than 62% wt, still more preferably not less than 65% wt but typically not more than 85% wt, more preferably not more than 80% wt, still more preferably not more than 75% wt.

The composition is liquid or at least flowable, that is, it can be poured. Compositions of the present invention preferably have a viscosity in the range of 1000 to 2700 cps at 21sec-1 measured on a Haake Viscometer (Models include VT181, VT501, VT550 or equivalent) with “cup” and “bob” geometry, equipped with a MV cup and a MV2 bob at a controlled temperature of 25°C. Preferably 1500 to 2500 and more preferably 1700 to 2300. Thicker compositions are sometimes preferred by users as these may be easier to dose. For compositions with lower amounts of surfactant, a thick product may also validate appropriate cleaning power perception with users of such compositions. Surfactants

The hand dish wash composition of the present invention preferably comprises a surfactant system. The surfactant system comprises at least a first surfactant and optionally a co-surfactant. Preferably the surfactant system comprises a co-surfactant.

The surfactant system is preferably present in the composition in a concentration of 1 to 50% wt. More preferably 8 to 30% wt, more preferably 8 to 25% wt, even more preferably 8 to 20% wt and still even more preferably 8 to 15% wt. First surfactant

Preferably the surfactant system comprises 70 to 100% first surfactant, preferably 75 to 95% and more preferably 80 to 90%.

The first surfactant is composed of one or more anionic surfactants. Suitable anionic surfactants for hand dishwash compositions include alkyl ether sulphates, alkylbenzene sulphonates, alkyl sulphates (i.e. primary alcohol sulphates (PAS)) and rhamnolipids.

Preferably at least part of the anionic surfactant is an ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture.

Preferably, the anionic surfactant comprises sodium lauryl ether sulphate having 1 to 3 ethylene oxide units per molecule, more preferably, sodium lauryl ether sulphate having 1 to 2 ethylene oxide units per molecule. Preferably the anionic surfactant comprises at least 70 wt% calculated on total amount of anionic surfactant, more preferably at least 80 wt%, even more preferably at least 90 wt% and still more preferably at least 95 wt% alkyl ether sulphate. It may be preferred that the anionic surfactant consists of alkyl ether sulphate. The first surfactant may comprise other anionic surfactants in addition to the above mentioned preferred anionic surfactant. Additional anionic surfactant may include PAS, rhamnolipids and/or alkyl benzene sulphonate. If additional anionic surfactants are present then these are preferably selected from PAS, rhamnolipids and combinations thereof. Preferably the surfactant system is free of alkyl benzene sulphonates.

Co-surfactant

In addition to the first surfactant, the surfactant system optionally comprises a co- surfactant, wherein the co-surfactant comprises nonionic and/or amphoteric surfactant. Preferably the surfactant system comprises 0 to 30% co-surfactant, more preferably 5 to 25% and still more preferably 10 to 20% calculated on total surfactant system.

Non-ionic surfactants tend to reduce the foam produced on use of the composition. Consumers frequently associate high foam with powerful cleaning so it may be desirable to avoid the use of non-ionic surfactant altogether. For compositions where this is not an issue a suitable class of non-ionic surfactants can be broadly described as compounds produced by the condensation of simple alkylene oxides, which are hydrophilic in nature, with an aliphatic or alkyl-aromatic hydrophobic compound having a reactive hydrogen atom. The length of the hydrophilic or polyoxyalkylene chain which is attached to any particular hydrophobic group can be readily adjusted to yield a compound having the desired balance between hydrophilic and hydrophobic elements. This enables the choice of non-ionic surfactants with the right HLB. Particular examples include: the condensation products of aliphatic alcohols having from 8 to 22 carbon atoms in either straight or branched chain configuration with ethylene oxide, such as a coconut alcohol/ethylene oxide condensates having from 2 to 15 moles of ethylene oxide per mole of coconut alcohol; condensates of alkylphenols having C6-C15 alkyl groups with 5 to 25 moles of ethylene oxide per mole of alkylphenol; and condensates of the reaction product of ethylene-diamine and propylene oxide with ethylene oxide, the condensates containing from 40 to 80 percent of ethyleneoxy groups by weight and having a molecular weight of from 5,000 to 11 ,000.

Other classes of non-ionic surfactants are: tertiary amine oxides of structure R1 R2R3N-0, where R1 is an alkyl group of 8 to 20 carbon atoms and R2 and R3 are each alkyl or hydroxyalkyl groups of 1 to 3 carbon atoms, e.g. dimethyldodecylamine oxide; tertiary phosphine oxides of structure R1R2R3P-0, where R1 is an alkyl group of 8 to 20 carbon atoms and R2 and R3 are each alkyl or hydroxyalkyl groups of 1 to 3 carbon atoms, for instance dimethyl-dodecylphosphine oxide; dialkyl sulphoxides of structure R1R2S=0, where R1 is an alkyl group of from 10 to 18 carbon atoms and R2 is methyl or ethyl, for instance methyl-tetradecyl sulphoxide; fatty acid alkylolamides, such as the ethanol amides; alkylene oxide condensates of fatty acid alkylolamides; and alkyl mercaptans.

If non-ionic surfactant is to be employed the amount present in the cleaning compositions of the invention will generally be at least 0.1 wt. percent, preferably at least 0.5 wt. percent, more preferably at least 1.0 wt. percent, but not more than 20 wt. percent, preferably at most 10 wt. percent and more preferably not more than 5 wt. percent.

Suitable amphoteric surfactants include betaines and amineoxides.

Betaine

Suitable betaines include alkyl betaine, alkyl amido betaine, alkyl amidopropyl betaine, alkyl sulphobetaine and alkyl phosphobetaine, wherein the alkyl groups preferably have from 8 to 19 carbon atoms.

Examples include cocodimethyl sulphopropyl betaine, cetyl betaine, laurylamidopropyl betaine, caprylate/caprate betaine, capryl/capramidopropyl betaine, cocam idopropyl hydroxysultaine, cocobutyramido hydroxysultaine, and preferably lauryl betaine, cocamidopropyl betaine and sodium cocamphopropionate. Preferably the betaine is cocamidopropyl betaine (CAPB).

Preferably the co-surfactant comprises at least 70% wt, calculated on total amount of co-surfactant, of betaine. More preferably at least 80% wt, even more preferably at least 90% wt and still more preferably at least 95% wt. It may be preferred that the co- surfactant consists of betaine.

Amine oxide

Suitable amine oxides are alkyl dimethyl amine oxide and alkyl amido propyl dimethyl amine oxide, more preferably alkyl dimethyl amine oxide. Especially preferred are lauryl dimethylamine oxide, coco dimethyl amine oxide and coco amido propyl dimethyl amine oxide.

Optional Ingredients

The composition according to the invention may contain other ingredients which aid in the cleaning or sensory performance. Compositions according to the invention can also contain, in addition to the ingredients already mentioned, various other optional ingredients such as thickeners, colorants, preservatives, fatty acids, anti-microbial agents, perfumes, pH adjusters, sequestrants, alkalinity agents and hydrotropes. Preferably, the composition comprises perfume. Preferably the composition comprises 0.1 to 10 wt%, more preferably 0.2 to 5 wt% and even more preferably 0.3 to 3 wt% perfume. Preferably the perfume comprises a fragrance component selected from the group consisting of ethyl-2-methyl valerate (manzanate), limonene, dihyro myrcenol, dimethyl benzyl carbonate acetate, benzyl acetate, geraniol, methyl nonyl acetaldehyde, Rose Oxide, cyclacet (verdyl acetate), cyclamal, beta ionone, hexyl salicylate, tonalid, phenafleur, octahydrotetramethyl acetophenone (OTNE), the benzene, toluene, xylene (BTX) feedstock class such as 2-phenyl ethanol, phenoxanol and mixtures thereof, the cyclododecanone feedstock class, such as habolonolide, the phenolics feedstock class such as hexyl salicylate, the C5 blocks or oxygen containing heterocycle moiety feedstock class such as gamma decalactone, methyl dihydrojasmonate and mixtures thereof, the terpenes feedstock class such as dihydromycernol, linalool, terpinolene, camphor, citronellol and mixtures thereof, the alkyl alcohols feedstock class such as ethyl-2-methylbutyrate, the diacids feedstock class such as ethylene brassylate, and mixtures of these components.

Preferably the composition comprises linalool, citronellol, limonene or combinations thereof. Linalool and limonene are especially preferred. Preferably the composition comprises limonene. Preferably the composition comprises 0.01 to 10 wt%, more preferably 0.05 to 5 wt% and even more preferably 0.1 to 3 wt% of the aforementioned fragrance components.

We have found that performance benefits are seen with using certain fragrance components such as limonene, when using carbon capture-based surfactant raw materials. In particular, we have found that using carbon capture based surfactants in the composition means that more fragrance components are present in the headspace meaning that more fragrance is perceived by the consumer when opening the container containing the composition. Organic solvents

Preferred compositions do not contain large amounts of organic solvents, usually added to boost cleaning performance, that is from 0 to 1 wt% organic solvent. Preferably the composition is free of organic solvents.

Silicones

Compositions of the present invention preferably comprise only limited amounts of silicones as these may not provide the required user characteristics for cleaning compositions of the present invention. Silicones may for example leave a ‘slippery’ feel to the hard surface. Therefore, the composition of the present invention preferably comprises from 0 to 1 wt%, more preferably from 0 to 0.5 wt% and still more preferably from 0 to 0.1 wt% silicones. Still more preferably the composition is free of silicones. pH of the composition pH of the composition of the present invention is between 4.0 to 8.0. Preferably, the pH is 4.5 and 7.5, preferably between 4.5 and 7.0, more preferably between 5.0 and 6.5.

Method

In one aspect of the present invention is provided a method of preparing a hand dish wash composition according to the present invention, comprising the steps: a. obtaining an ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture; b. incorporating said ingredient into a hand dishwash composition. Preferably the method of preparing a hand dish wash composition according to the present invention, comprising the steps: a. obtaining an ingredient comprising at least one ethoxylate unit and at least one carbon derived from carbon capture; b. incorporating said ingredient into a hand dishwash composition.

Step a. may involve any of the processes described herein or any suitable alternate routes to obtain an ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture. The ingredient is preferably an ingredient as described herein. Step b. involves incorporating the ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture into a hand dishwash composition. Once produced, the hand dishwash composition is stored in suitable packaging. Preferably the packaging comprises post consumer recycled packaging or PCR.

Use

In a further aspect, the invention relates to the use of an ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture to create a tangible eco-marker in a hand dishwash composition of the present invention.

Preferaby the use of an ingredient comprising at least one ethoxylate unit and at least one carbon derived from carbon capture to create a tangible eco-marker in a hand dishwash composition of the present invention.

It was surprisingly found that inclusion of such ingredient not only improves the ecological profile of the product, but also allows for the creation of tangible markers as proof of inclusion of eco friendly ingredients without negatively influencing the performance or other characteristics of the product.

For example, inclusion of such ingredient not only improves the ecological profile of the product, but also imparts a distinguishable overall fragrance perception, alone or in combination with other ingredients, that can be act as an eco-marker. Thereby providing assurance to a consumer concerning the credibility of the eco friendly ingredients and total product upon use.

Another example of such a tangible eco-marker is that inclusion of ingredient comprising at least one ethoxylate unit and at least one carbon derived from carbon capture allows for calculation of pMC (as discussed above) that as such can act as an eco-marker according to the present invention. The pMC value can for example be used on pack as a tangible eco-marker.

Preferably the tangible eco-marker is selected from pMC, fragrance profile and combinations thereof. The invention will now be illustrated by means of the following non-limiting examples.

Examples The following ingredients are illustrative of ingredient comprising at least one ethoxylate unit and/or at least one carbon derived from carbon capture.

Table 1 : Alkyl ether sulphate Table 2: Alcohol ethoxylate

Table 3: Polyethylene glycol (molecular weight 400)

Table 4: Hand dishwash compositions

Example 13 Sensorial testing was performed on non-ionic surfactants which were C12-alcohol ethoxylates with an average of 7EO. A C12-alcohol ethoxylate-7EO non-ionic surfactant according to the invention was obtained of which the EO-polymer moiety was derived from a process which involved gas fermentation to reduce gaseous captured CO2 to ethanol, wherein the ethanol was further converted to ethylene and used to make the EO-polymer. The alkyl-chain was obtained from a bio-source. A 012- alcohol ethoxylate-7EO non-ionic not according to the invention was obtained, also with an alkyl chain derived from a bio-source, but where the EO-polymer chain was derived from a petrochemical source. The surfactants were used to make a detergent formulation before testing. The detergent formulations were either tested at 20 degrees Celsius or heated to 40 degrees Celsius. The formulations, which otherwise contained no added perfumes were tested by a human nose.

The surfactant according to the invention provided a ‘waxy/fatty’ odour whereas the petrochemically derived surfactant provided a ‘chemical’ odour. The odour perception was verified by two persons independently. Example 14

Detergent compositions comprising fragrance components were prepared and assessed for headspace fragrance analysis.

The table shows the normalised results for the petro-derived AE7EO non-ionic surfactant (M) versus the equivalent comprising carbon captured raw materials for manufacturing the EO units (L).

For the fragrance components listed, all were present in the headspace in greater concentrations for the carbon capture derived composition than for the petroleum based equivalent.