Cleaning layered composition

Abstract

The present invention relates to a mild cleaning or wash composition that provides excellent moisturizing sensory properties. In one embodiment, a cleaning composition comprises an anionic surfactant mixture comprising both an acyl isethionate and an acyl taurine salt. The cleaning composition further comprises a zwitterionic surfactant, wherein 2.5 to 35% of the total weight of the zwitterionic surfactant has a C8 to C10 hydrophobic chain. The cleaning composition foams well and can be formulated to be substantially free of sulfates.

Description

Cleaning layered composition Technical Field

[0001] This invention relates to a mild cleaning or washing composition that provides consumers with desired moisturizing sensory properties. More specifically, the cleaning composition comprises a mixture of anionic surfactants containing both acyl hydroxyethyl sulfonate and acyl taurate. The cleaning composition also comprises an amphoteric surfactant, wherein 2.5 to 35% by weight of the total amphoteric surfactant has a C8 to C9 content. 10 Hydrophobic chain. Surprisingly, in addition to being gentle, the cleansing composition foams well and provides the desired moisturizing sensory properties to the consumer after use, even when formulated with less than 8.25% by weight of total occlusive. This cleansing composition does not leave the skin feeling sticky or draggy; it is stable and can be formulated substantially free of at least one of sulfate-based surfactants, dioxanes, parabens, hydantoins, phthalates, siloxanes, and isothiazolinones. Background Technology

[0002] Washing compositions are typically used to cleanse the skin and reduce shine associated with sebum produced by epithelial cells called sebaceous cells. They are also used to minimize bacteria on the hands and face, making washing considered the most effective way to prevent the spread of germs and bacteria. In fact, experts believe that regular washing throughout the day can reduce the number of consumers catching a cold by about 50%.

[0003] Due to the Covid-19 pandemic, consumers have become more focused on cleansing and are therefore attracted to wash compositions that not only help reduce the chances of getting sick but also help reduce dry and flaky skin. Negative feedback associated with moisturizing wash compositions indicates that these compositions typically foam poorly and are therefore considered less effective at achieving a thorough clean. Additional feedback suggests that such conventional moisturizing compositions (i.e., products with more than 9% by weight of zwitterionic surfactants as occlusive agents) can leave skin feeling sticky and are often difficult to empty from the packaging due to their high occlusive agent content.

[0004] There is growing interest in developing a gentle cleansing composition that foams well and produces the moisturizing sensory properties consumers desire without leaving the skin feeling sticky or greasy. There is also increasing interest in developing products that are easier to empty from the packaging and rely less on palm kernel oil and / or coconut oil, as well as high levels of occlusive agents, particularly those derived from petroleum.

[0005] Therefore, the present invention relates to a mild cleansing composition that surprisingly provides consumers with desired moisturizing sensory properties, the cleansing composition comprising an anionic surfactant mixture containing both acyl hydroxyethyl sulfonate and acyl taurate. This composition also contains an amphoteric surfactant, wherein 2.5 to 35% by weight of the total amphoteric surfactant has a C8 to C9 content. 10 Hydrophobic chain. The cleansing compositions of the present invention are not only gentle on the skin, but also surprisingly well-foaming and unexpectedly provide consumers with the desired moisturizing sensory properties after use, even when formulated with less than 8.25% by weight of an occlusive agent. These cleansing compositions do not leave the skin feeling sticky or greasy, are stable, and can be formulated substantially free of at least one of sulfate-based surfactants, dioxanes, parabens, hydantoins, phthalates, siloxanes, and isothiazolinones.

[0006] Additional information has disclosed efforts to prepare cleaning compositions. In U.S. Patent No. 9,066,859, a viscoelastic cleaning gel having a nonionic surfactant and an amphoteric surfactant is described.

[0007] Other efforts for preparing cleansing compositions have been disclosed. A gentle cleansing composition with makeup-removing properties is described in U.S. Patent No. 9,974,726.

[0008] Other efforts for preparing cleaning compositions have also been disclosed. Personal cleaning compositions are described in international applications WO 2020 / 023187A1 and WO 2020 / 099036 A1.

[0009] Other efforts for preparing cleaning compositions are also disclosed. Sulfate-free cleaning compositions are described in U.S. Patent No. 10,039,939 and U.S. Patent Application Publication No. 2018 / 0318195 A1.

[0010] No additional information is provided regarding the mild cleaning compositions described herein and those for which protection is claimed. Summary of the Invention

[0011] In a first aspect, the present invention relates to a layered detergent composition comprising: a) an anionic surfactant comprising 2 to 6.75% by weight, preferably 2.2 to 5.5% by weight, and most preferably 2.5 to 5% by weight (or 2.75 to 4.75% by weight, or 3 to 4.5% by weight, or 3.25 to 4.25% by weight, or 3.5 to 4% by weight) of an acylhydroxyethyl sulfonate, and 3 to 8% by weight, preferably 3.2 to 7.75% by weight, and most preferably 3.25 to 7.5% by weight (or 3.5 to 7% by weight, or 4 to 6.75% by weight, or 4.25 to 6.25% by weight, or 4.75 to 5.65% by weight); b) c) 3 to 7.5% by weight, preferably 3.5 to 7% by weight, and most preferably 3.75 to 6.75% by weight (or 4 to 6.5% by weight or 4.25 to 6.25% by weight, or 4.5 to 6% by weight or 4.65 to 5.5% by weight); c) 1.75 to 6% by weight, preferably 1.95 to 5.5% by weight, and most preferably 2.25 to 5.5% by weight (or 2.75 to 5% by weight or 2.75 to 4.75% by weight or 2.75 to 4.5% by weight or 2.95 to 4.5% by weight) of a thickener, provided that: i) The weight ratio of acylhydroxyethyl sulfonate to acyl taurate is 1:0.8 to 1:2.5, and preferably 1:1 to 1:2.25 or 1:1.1 to 1:2 (or 1:1.1 to 1:1.9 or 1:1.2 to 1:1.8 or 1:1.3 to 1:1.7 or 1:1.3 to 1:1.45); ii) the layered detergent composition is optionally substantially free of at least one of sulfate-based surfactants, phthalates, dioxanes, parabens, hydantoins, and isothiazolinones; iii) the total surfactant in the layered detergent composition does not exceed 22.25% by weight; iv) based on the total weight of the zwitterionic surfactant, 2.5 to 35% of the total weight of the zwitterionic surfactant contains C8 to C9 ... 10 The hydrophobic chain; and v) the pH of the layered detergent composition is 5.75 to 8.25, preferably 5.9 to 8, and most preferably 6 to 7.5 (or 6 to 7.25 or 6.1 to 7 or 6.2 to 6.9).

[0012] In a second aspect, the present invention relates to a layered detergent composition comprising: a) an anionic surfactant comprising 2 to 6.75% by weight, preferably 2.2 to 5.5% by weight, and most preferably 2.5 to 5% by weight (or 2.75 to 4.75% by weight, or 3 to 4.5% by weight, or 3.25 to 4.25% by weight, or 3.5 to 4% by weight) of an acylhydroxyethyl sulfonate, and 3 to 8% by weight, preferably 3.2 to 7.75% by weight, and most preferably 3.25 to 7.5% by weight (or 3.5 to 7% by weight, or 4 to 6.75% by weight, or 4.25 to 6.25% by weight, or 4.75 to 5.65% by weight); b) a) 3 to 7.5% by weight, preferably 3.5 to 7% by weight, and most preferably 3.75 to 6.75% by weight (or 4 to 6.5% by weight or 4.25 to 6.25% by weight, or 4.5 to 6% by weight or 4.65 to 5.5% by weight); c) less than 3.25% by weight, preferably less than 3% by weight, and most preferably less than 2.75% by weight (or 0.5 to 2.65% by weight or 0.75 to 2.55% by weight or 1 to 2.5% by weight); d) 1.75 to 6% by weight, preferably 1.95 to 5.5% by weight, and most preferably 2.25 to 5.5% by weight (or 2.75 to 5% by weight or 2.75 to 4.75% by weight or 2.75 to 4.5% by weight or 2.95 to 4.5% by weight) of a thickener based on the total weight of the layered detergent composition; and e) The first blocking agent and the second blocking agent are different from the first blocking agent. The droplet size of the first blocking agent is 1 to 250 micrometers, preferably 1 to 100 micrometers, and most preferably 1 to 50 micrometers (or 2 to 40 micrometers, or 2 to 35 micrometers, or 2 to 10 micrometers, or 2.5 to 8 micrometers), and the droplet size of the second blocking agent is less than 1 micrometer or 25 to 950 nm, preferably 40 to 800 nm, and most preferably 50 to 750 nm (or 65 to 700 nm, or 70 to 650 nm, or 80 to 650 nm, or 120 to 625 nm). The total weight of the blocking agent, consisting of the first and second blocking agents, is equal to 20 to 75% by weight of the total surfactant weight of the anionic and amphoteric surfactants in the layered detergent composition, preferably 20 to 70% by weight, and most preferably 21 to 65% by weight (or equal to 22 to 60% by weight, 22 to 55% by weight, 22 to 50% by weight, 22 to 42% by weight, or 30 to 40% by weight), provided that: i) the weight ratio of acylhydroxyethyl sulfonate to acyl taurate is 1:0.8 to 1:2.5, preferably 1:1 to 1:2.25 or 1:1.1 to 1:2 (or 1:1.1 to 1:1.9 or 1:1.2 to 1:1.8 or 1:1.3 to 1:1.7 or 1:1.3 to 1:1.1).45); ii) The layered detergent composition is substantially free of sulfate-based surfactants; iii) The total surfactant content in the layered detergent composition does not exceed 22.25% by weight; iv) Based on the total weight of the zwitterionic surfactants, 2.5% to 35% of the total weight of the zwitterionic surfactants contains C8 to C. 10 iv) Based on the total weight of the thickener in the washing composition, the thickener comprises less than 1.5% by weight, and preferably less than 1.25% by weight, and most preferably less than 1% by weight (or less than 0.5% by weight or 0.001 to 0.9% by weight or 0.0% by weight) of a quaternized hydroxyethyl cellulose polymer with a molecular weight of 195 to 825 kDa (or a molecular weight of 185 to 950 kDa, or 170 to 900 kDa, or 150 to 1000 kDa); v) The layered washing composition has a pH of 5.75 to 8.25, and preferably 5.9 to 8, and most preferably 6 to 7.5 (or 6 to 7.25 or 6.1 to 7 or 6.2 to 6.9); and vi) The layered washing composition optionally contains an activator of peroxisome proliferator-activated receptor.

[0013] In a third aspect, the present invention relates to a method for cleaning a surface by contacting the surface with a layered washing composition of the first or second aspect of the invention, applying shear to generate foam, and rinsing the surface with water.

[0014] In a fourth aspect, the present invention relates to the use of anionic and amphoteric surfactants, and optionally blocking agents, in layered detergent compositions for imparting moisturizing sensory properties to the skin.

[0015] All other aspects of the invention will become more readily apparent from the specification and the following embodiments.

[0016] As used herein, skin means the skin on the arms (including the armpits), face, back, feet, neck, chest, hands, legs, buttocks, and scalp. Surface means nails and hair. Stability means that after preparation and storage at 45°C, the skin does not dehydrate and shrink and can maintain a viscosity of at least 80,000 mPa·s for at least one month, preferably at least two months, and even more preferably at least three months.

[0017] When referring to sealants, "not identical" or "different" means that, based on the total weight of the sealants, no more than 30% of the component in one sealant is identical to the component in another sealant used, and preferably no more than 20% by weight, more preferably no more than 15% by weight, and most preferably no more than 10% by weight, 5% by weight, or 2% by weight are identical. In embodiments of the invention, based on the total weight of the sealants, 0.001% to 20% (or 0.001% to 15% or 0.01% to 10%) of the component in one sealant is identical to the component in another sealant used. In yet another embodiment, no component (0.0%) is identical in each sealant. For illustration, if, based on the total weight of the first sealant, the first sealant is at least 30% by weight of "Oil A", then the second sealant used contains 30% by weight or less of Oil A based on the total weight of the second sealant, so that it is not identical or different as defined herein.

[0018] Palm kernel oil-derived and coconut oil-derived components are those with a fatty portion (i.e., a hydrophobic chain) that has a C8-C bond derived from palm kernel oil or coconut oil (whichever is more appropriate). l6 Saturated hydrocarbon chains. A blocking agent is an additive or ingredient used in a composition and to enhance the trapping or fixation of moisture to or within a surface (such as skin) or both. As used herein, a layered structure refers to a layer of surfactant having an arrangement in which polar head groups are aligned with water to shield fatty acid acyl chains from the influence of water, such that more than 85% (or 90 to 100% or 100%) of the total resulting surfactant in the composition is arranged as a micelle plate or layer, thereby producing a translucent or opaque composition. In this invention and as demonstrated in the data provided, it has been unexpectedly found that, compared to commercially available moisturizing cleansing products having at least 9% by weight or more of blocking agents, the compositions according to the invention surprisingly result in superior foaming properties (i.e., a total foam height of at least 57.5 mm, preferably at least 57.7 mm, more preferably at least 57.8 mm, and most preferably at least 58 mm, as measured using a Kruss dynamic foam analyzer as described in the examples) and the skin-moisturizing sensory properties desired by consumers. The reported total foam height refers to the liquid height plus the foam height after starting with equal volumes of liquid and detergent composition. As used herein, the skin moisturizing properties desired by consumers mean that skin washed with the layered detergent composition of the present invention feels surprisingly hydrated or more hydrated compared to skin washed with commercial products containing more than 9% by weight of occlusive agents.

[0019] The washing composition of the present invention is a washing composition having a viscosity from 80,000 mPa·s to 2,000,000 mPa·s, wherein the viscosity is measured at 25°C using a Discovery HR-2 rheometer with a parallel or conical plate having a 1000-micron gap and a viscosity of 0.1 s⁻¹. -1 The shear rate was obtained.

[0020] The washing compositions of the present invention are suitable for wiping or rinsing off, and are preferably rinsed off with water. Such compositions can be household care cleaning compositions (e.g., for tabletops, glass, toilet appliances, interior decorations or clothing), but are preferably shampoos, makeup removers, facial cleansers or hand soaps, and especially personal care liquid shower gels. In embodiments of the invention, the washing composition may have a viscosity of 80,000 to 1,800,000 mPa·s, and preferably 85,000 to 1,675,000 mPa·s, and most preferably 90,000 to 1,450,000 mPa·s (or 95,000 to 1,175,000 mPa·s, or 100,000 to 1,115,000 mPa·s, or 150,000 to 1,000,000 mPa·s, or 170,000 to 1,000,000 mPa·s, or 175,000 to 950,000 mPa·s). When used for hand applications, the layered detergent composition of the present invention preferably has a viscosity of not more than 150,000 mPa·s, more preferably not more than 100,000 mPa·s, and most preferably 80,000 to 170,500 mPa·s.

[0021] The washing compositions of the present invention may optionally contain pharmaceutical or therapeutic agents, but are preferably non-therapeutic washing compositions for cosmetic use, and are formulated to remove dirt, oil, etc., from surfaces including skin and hair. In a preferred embodiment, the layered washing compositions are personal washing compositions, and are therefore liquid shower gels used during showering or bathing. The layered washing compositions of the present invention may optionally contain skin-beneficial ingredients added thereto, such as emollients, vitamins and / or their derivatives, resorcinols, retinoic acid precursors, peroxisome proliferator-activated receptor activators, colorants, moisturizers, sunscreens, antibacterial agents, mixtures thereof, etc. Such skin-beneficial ingredients (or agents) may be water-soluble and / or oil-soluble. If used, oil-soluble skin-beneficial agents typically comprise up to 2% by weight (or preferably up to 1.5% by weight or 0.01 to 1% by weight) of the layered detergent composition, while water-soluble skin-beneficial agents (when optionally used) may comprise up to 15% by weight (or up to 10% by weight or up to 5% by weight or 0.01 to 4.5% by weight) of the detergent composition. The pH of the layered detergent composition is typically 5.75 to 8.25, preferably 5.9 to 8, and most preferably 6 to 7.5 (or 6 to 7.25 or 6.1 to 7 or 6.2 to 6.9).

[0022] As used herein, when referring to sulfates (i.e., sulfate-based surfactants), "substantially sulfate-free" means less than 3.0% by weight of the detergent composition, preferably less than 2% by weight, most preferably less than 1% by weight, and even more preferably less than 0.75% by weight (or less than 0.5% by weight). In embodiments of the invention, "substantially sulfate-free" includes detergent compositions having 0.0% by weight (no) sulfate-based surfactants (e.g., surfactants denoted as alkyl-OSO3-). Regarding non-sulfate-based components (i.e., components that are not sulfate-containing surfactants (such as sodium dodecyl sulfate), such as hydantoin preservatives) that may be substantially sulfate-free, "substantially sulfate-free" means less than 0.8% by weight of the detergent composition, preferably less than 0.7% by weight, and most preferably less than 0.5% by weight (or less than 0.3% by weight, less than 0.22% by weight, less than 0.1% by weight, or less than 0.05% by weight). Regarding non-sulfate-based components, "substantially sulfate-free" also includes components with 0.0% by weight (i.e., none) in the detergent composition. Regarding all ingredients that the washing compositions of the present invention may substantially be absent, within the scope of the invention, this includes 0.001 to 0.065% by weight or 0.01 to 0.045% by weight of such ingredients. For the avoidance of doubt, “substantially absent” as used herein means applicable individually to each ingredient. In yet another preferred embodiment, based on the total dioxane in the washing composition, the washing compositions of the present invention contain less than 35 ppm, and preferably less than 25 ppm, and most preferably less than 15 ppm of dioxane, or less than 2 ppm or less than 1 ppm of dioxane, or less than 0.05 ppm or 0.0 ppm of dioxane, wherein the dioxane includes 1,4-dioxane. In another embodiment, the washing compositions of the present invention may contain 0.00001 to 0.00005% by weight of dioxane, such as 1,4-dioxane.

[0023] As used herein, acid value refers to the weight (in mg) of KOH required to neutralize 1 gram of organic acid present in the test sample, and it is a measure of the free fatty acids present in the composition. Acid value can be determined by AOCS Official Method Cd 3d-63. The acid value of the petrolatum or petrolatum substitutes (i.e., the second blocking agent) described herein may be less than 10, or less than 7, or less than 6.5, or less than 5, or from 0.0 to 7, or from 0.0 to 6, or from 0.25 to 4.

[0024] As used herein, the iodine value is the mass of iodine (in grams) consumed per 100 grams of a chemical substance and is used to determine the amount of unsaturation in fats, oils, and waxes. In fatty acids, unsaturation exists primarily as double bonds, which are highly reactive to halogens such as iodine. A higher iodine value indicates a greater amount of unsaturation in the sample. The iodine value of a material can be determined using the standard and well-known Wijs method (AOCS Cdl-25).

[0025] Cone penetration refers to resistance to deflection under pressure, which can be measured using the standard method ASTM D217-2. The natural-based blocking formulations described herein have a cone penetration greater than 10 at 25 degrees Celsius, or about 10 to about 250, or about 50 to about 100 (Dmm (1 / 10 of mm)).

[0026] Polydispersity index, or molecular weight distribution, refers to the ratio of weight-average molecular weight (Mw) to number-average molecular weight (Mn). Polydispersity data can be collected using gel permeation chromatography with standards as described in WO 22150815 A1, the disclosure of which is incorporated herein by reference.

[0027] Droplet size (i.e., the size of the sealing agent particles, the maximum measurable diameter of the droplet) can be assessed using instruments such as laser diffraction size analyzers (e.g., the Malvern Mastersizer 3000). Other available instruments include bright-field (or optical) microscopes, such as those available from Leica and Accu-Scope, and cryo-scanning electron microscopes, such as those available from Zeiss.

[0028] Unless otherwise expressly stated, all scopes described herein are intended to include all scopes contained herein. The term “comprising” is intended to encompass the terms “consistently composed of” and “composed of”. For the avoidance of ambiguity and for the purpose of illustrative purposes, a composition comprising taurine and betaine is intended to include, for example, compositions consisting substantially of and composed of. Percentages used herein, unless otherwise stated, are meant by weight of the component (i.e., excluding any carriers, such as water, that may be supplied with the component). Except where expressly stated in the operational and comparative examples or otherwise, all figures used in this specification to indicate the amount or ratio of material and / or its use should be understood to be modified by the word “about”. As present herein, this disclosure is intended to cover all embodiments found in claims that are multi-dependent on each other, regardless of the fact that claims may exist without multi-dependent or redundant claims. Detailed Implementation

[0029] Regarding the hydroxyethyl sulfonates that can be used, such surfactants include C6-C... 20Acyl hydroxyethyl sulfonates. These surfactants (esters) are prepared by reacting an alkali metal hydroxyethyl sulfonate with a mixture of aliphatic fatty acids having 6 to 20 carbon atoms and an iodine value less than 20. Typically, at least 75% of the mixed fatty acids have 12 to 18 carbon atoms, and up to 25% may have 6 to 10 carbon atoms. Suitable acyl hydroxyethyl sulfonates can be alkoxylated hydroxyethyl sulfonates, as described in U.S. Patent No. 5,393,466, entitled "Fatty Acid Esters of Polyalkoxylated isethonic acid," by Ilardi et al. Hydroxyethyl sulfonate surfactants can comprise reaction products of fatty acids esterified with hydroxyethyl and neutralized with a base (such as sodium hydroxide or potassium hydroxide). Acyl hydroxyethyl sulfonate surfactants can have the following general formula: RC-O(O)-C(X)HC(Y)H-(OCH2-CH2) m -SO3 - M + (I) Wherein R is an alkyl group having 5 to 19 carbons, m is an integer from 0 to 4 (1 to 4 for alkoxylation options), X and Y are each independently hydrogen or an alkyl group having 1 to 4 carbons, and M is hydrogen, ammonium, an alkali metal cation, a lower C1-C4 alkanol ammonium cation, and / or a basic amino acid cation. In embodiments of the invention, M includes sodium, ammonium, and / or potassium ions.

[0030] When m is 0, the carbon at the α or β position of the sulfonate group has a carbon that substitutes for a hydrogen atom. 1-4 Alkyl substitution, preferably C 1-3 Alkyl substituents, with methyl groups being the most preferred, are also within the scope of this invention. The presence of unsaturated R groups, typically not exceeding two, and more preferably not exceeding one double bond, is also within the scope of this invention.

[0031] Illustrative examples of hydroxyethyl sulfonates suitable for use in the layered detergent compositions of the present invention include sodium decanoyl hydroxyethyl sulfonate, sodium hexanoyl hydroxyethyl sulfonate, sodium decanoyl methyl hydroxyethyl sulfonate, sodium hexanoyl methyl hydroxyethyl sulfonate, sodium cocoyl hydroxyethyl sulfonate, sodium cocoyl methyl hydroxyethyl sulfonate, sodium lauroyl hydroxyethyl sulfonate, sodium lauroyl methyl hydroxyethyl sulfonate, potassium lauroyl hydroxyethyl sulfonate, potassium lauroyl methyl hydroxyethyl sulfonate, sodium oleoyl hydroxyethyl sulfonate, sodium oleoyl methyl hydroxyethyl sulfonate, sodium stearoyl hydroxyethyl sulfonate, sodium stearoyl methyl hydroxyethyl sulfonate, sodium myristoyl hydroxyethyl sulfonate, sodium myristoyl methyl hydroxyethyl sulfonate, sodium palmitoyl hydroxyethyl sulfonate, sodium palmitoyl methyl hydroxyethyl sulfonate, ammonium cocoyl hydroxyethyl sulfonate, ammonium cocoyl methyl hydroxyethyl sulfonate, or mixtures thereof. In embodiments of the present invention, the hydroxyethyl sulfonate used in the present invention is sodium lauroyl hydroxyethyl sulfonate.

[0032] Regarding the use of taurine in layered detergent compositions, it is limited to the extent that it is a taurine suitable for use in consumer products. Illustrative examples of taurine surfactants that can be used include, for example, amides of taurine or N-methyltaurine and their salts. For example, suitable taurines are acyl taurines represented by the following general formula: R 1 (C=O)N(R 2 CH2CH2SO3 - M + (II), where R 1 It is C5 to C 29 More specifically, C5 to C 23 Alkyl, R 2 It is hydrogen or methyl, and M is as defined above. In one embodiment, R 1 It is C5 to C 17 Alkyl group. In another embodiment, at least half of the R 1 The group is C7-C 18 Alkyl group. In yet another embodiment, at least half of the R... 1 The group is C9-C 15 Alkyl or C9-C 13 Alkyl group. R 1 It can be saturated or unsaturated. In yet another implementation, R 2 It is methyl. To avoid ambiguity, the total alkyl chain length described herein includes the carbonyl carbon.

[0033] Explanatory acyl taurates that can be used in the surfactant systems of the present invention include, for example, taurates commonly known as sodium methyl lauroyl taurate, potassium methyl lauroyl taurate, sodium methyl myristoyl taurate, potassium methyl myristoyl taurate, ammonium methyl myristoyl taurate, sodium methyl cocoyl taurate, potassium methyl cocoyl taurate, ammonium methyl cocoyl taurate, sodium methyl oleoyl taurate, potassium methyl oleoyl taurate, ammonium methyl oleoyl taurate, sodium lauroyl taurate, potassium lauroyl taurate, ammonium myristoyl taurate, sodium cocoyl taurate, potassium oleoyl taurate, and mixtures thereof. In embodiments of the present invention, the taurate used in the present invention is sodium methyl lauroyl taurate.

[0034] As described herein, the weight ratio of acyl hydroxyethyl sulfonate to acyl taurate in the layered detergent composition of the present invention is 1:0.8 to 1:2.5, and preferably 1:1 to 1:2.25 or 1:1.1 to 1:2 (or 1:1.1 to 1:1.9 or 1:1.2 to 1:1.8 or 1:1.3 to 1:1.7 or 1:1.3 to 1:1.45).

[0035] The amount of acyl hydroxyethyl sulfonate used is typically 2 to 6.75% by weight of the layered detergent composition, preferably 2.2 to 5.5% by weight, and most preferably 2.5 to 5% by weight (or 2.75 to 4.75% by weight, or 3 to 4.5% by weight, or 3.25 to 4.25% by weight, or 3.5 to 4% by weight). The amount of acyl taurine used is typically 3 to 8% by weight of the layered detergent composition, preferably 3.2 to 7.75% by weight, and most preferably 3.25 to 7.5% by weight (or 3.5 to 7% by weight, or 4 to 6.75% by weight, or 4.25 to 6.25% by weight, or 4.75 to 5.65% by weight).

[0036] In embodiments of the invention, at least 75% by weight, preferably at least 85% by weight, and most preferably at least 90% by weight (or 90 to 100% by weight, or 92 to 99% by weight, or 94 to 97% by weight, or 95 to 99% by weight, or 100% by weight) of the total anionic surfactant used in the layered detergent composition is a mixture of acyl hydroxyethyl sulfonate and acyl taurate.

[0037] Optional anionic surfactants suitable for use with the mixtures of acyl hydroxyethyl sulfonates and acyl taurates described herein include those commonly classified as acyl glutamate and acyl glycinate salts.

[0038] Suitable acylglutamic acids (and their salts) for optional use include C8 to C99. 20 And C is preferred 10 To C 18 And the optimal choice is C. 12 To C 16 Or C 12 To C 14Acylglutamate, wherein the acyl moiety is preferably saturated, but also suitable to be unsaturated, having no more than two double bonds, including conjugated double bonds. Illustrative and non-limiting examples of glutamate salts that may be used include sodium octanoyl glutamate, sodium lauroyl glutamate, sodium myristoyl glutamate, sodium cocoyl glutamate, sodium stearoyl glutamate, dipotassium octanoyl glutamate, dipotassium undecenoyl glutamate, disodium octanoyl glutamate, disodium cocoyl glutamate, disodium lauroyl glutamate, disodium stearoyl glutamate, disodium undecenoyl glutamate, potassium octanoyl glutamate, potassium cocoyl glutamate, potassium lauroyl glutamate, potassium myristoyl glutamate, potassium stearoyl glutamate, potassium undecenoyl glutamate, sodium olive oil acyl glutamate, sodium palmitoyl glutamate, sodium undecenoyl glutamate, disodium cocoyl glutamate, or mixtures thereof. In embodiments of the invention, a mixture of at least two of sodium lauroyl glutamate, sodium cocoyl glutamate, and sodium stearoyl glutamate is preferred. In another embodiment, if glutamate salts are used, sodium myristoyl glutamate and / or sodium cocoyl glutamate are generally preferred.

[0039] Regarding acylglycines (and their salts) suitable for optional use, these include C8 to C96. 20 And C is preferred 10 To C 18 And the optimal choice is C. 12 To C 16 Or C 12 To C 14 Acylglycinate salts. Illustrative and non-limiting examples of glycinate salts that may be used include sodium lauroylglycinate, sodium myristoylglycinate, sodium cocoylglycinate, potassium lauroylglycinate, sodium myristoylglycinate, potassium cocoylglycinate, or mixtures thereof. In embodiments of the invention, sodium cocoylglycinate, potassium cocoylglycinate, or mixtures thereof are generally preferred when using acylglycinate salts. In another embodiment, sodium lauroylglycinate or potassium lauroylglycinate, or both, may also be used in the layered detergent compositions of the invention. Similar to glutamate salts suitable for optional use, the acyl moiety of the optionally used glycinate salt is preferably saturated, but is also suitable to be unsaturated, having no more than two double bonds, including conjugated double bonds.

[0040] Other anionic surfactants suitable for optional use include alkyl sulfates, alkyl ether sulfates, alkyl sulfonates, α-olefin sulfonates, alkyl sulfosuccinates, alkyl ether sulfosuccinates, acylsarcosinates, or mixtures thereof (including any salts thereof).

[0041] As described herein, the layered detergent compositions of the present invention optionally and preferably substantially free of sulfate-based surfactants. In embodiments of the invention, sulfate-based surfactants may be used in an amount less than 3% by weight of the total weight of the layered detergent composition. If optionally included, sulfate-based surfactants may include C8-C 20 Alkyl sulfates and / or C8-C 20 Alkyl ether sulfates. Sodium lauryl sulfate, sodium lauryl ether sulfate, ammonium lauryl sulfate, ammonium lauryl ether sulfate, sodium alkyl alcohol polyether sulfate, or mixtures thereof are commonly used in selection. For those sulfate-based surfactants classified as alkyl ether sulfates, the ethoxy moiety is typically 1 to 3 ethoxy units long, and usually 2 to 3 ethoxy units long.

[0042] The optional anionic sulfonic acids and their salts (in addition to the hydroxyethyl sulfonate and taurine described herein) may include alkyl sulfonates, alkyl glycerol ether sulfonates, and alkyl α-olefin sulfonates (hydrocarbons being olefins C). x H 2x (with a double bond at the α position) or mixtures thereof. Typically, the alkyl moiety originates from C8-C. 24 And C is preferred 10 -C 20 And more preferably C 12 To C 18 Or C 12 To C 16 Or C 14 To C 16 .

[0043] Suitable succinic acids (including their salts) that may optionally be included in the layered detergent composition are those having a C 10 To C 20 Those with hydrophobic portions. Illustrative examples include oleamide-based MIPA disodium sulfosuccinate, oleamide-based MEA disodium sulfosuccinate, lauryl sulfosuccinate disodium, lauryl ether sulfosuccinate diammonium lauryl sulfosuccinate, lauryl ether sulfosuccinate diammonium lauryl ether, dioctyl sodium sulfosuccinate, oleamide-MEA disodium sulfosuccinate, dialkyl sulfosuccinate sodium, or mixtures thereof. For the avoidance of doubt, MIPA and MEA refer to monoisopropanolamine and monoethanolamine, respectively.

[0044] Suitable acylsarcosine salts include those with C8-C 20 Or C 10 -C 18 Or C 12 -C 18 Acyl groups. Illustrative examples of sarcosine salts that may be used optionally include sodium lauroyl sarcosine, sodium cocoyl sarcosine, or mixtures thereof.

[0045] In embodiments of the present invention, at least one optional anionic surfactant used is selected from sodium lauryl sulfosuccinate, sodium myristoyl sulfosuccinate, sodium cocoyl sulfosuccinate, sodium stearyl sulfosuccinate, sodium laureth sulfosuccinate, sodium alkyl ether sulfosuccinate, disodium laureth sulfosuccinate, disodium laureth sulfosuccinate, sodium diethylhexyl sulfosuccinate, or mixtures thereof.

[0046] In yet another embodiment, the anionic surfactant used in the layered detergent composition may optionally include sodium methyl 2-sulfolanoate or disodium 2-sulfolanoate or both.

[0047] Any mixture of optional anionic surfactants may be used, and the cationic portion of its salt may include sodium, potassium, and ammonium ions or mixtures thereof.

[0048] In another embodiment of the invention, the optional anionic surfactants that are generally desired to be suitable for use are those that are generally classified as lactates, including C 10 -C 20 Lactates. Such lactates can be monolactic or polylactic, or mixtures thereof, because lactic acid can undergo, for example, self-esterification. Therefore, suitable C... 10 -C 20 Lactates include lactate esters of fatty acids represented by the following formula: (III) Where R a It is C 9 To C 19 Hydrocarbons, each R b Independently hydrogen or C 1-3 Alkyl group, wherein at least one R b It is an alkyl group (preferably methyl), u is an integer from 0 to 3, and Y + It can include K + Na + NH4 + Counterions of or mixtures thereof.

[0049] In embodiments of the invention, if optionally used in a layered washing composition, C is calculated based on the total weight of lactate. 10 -C 20 Lactate contains 40 to 100% by weight, preferably 50 to 95% by weight, and most preferably 60 to 90% by weight (or 65 to 85% by weight or 70 to 80% by weight) of C. 12 -C 20 (or C) 14 -C 20 Or C 16 -C 20 Or C 16 -C18 ) group (i.e., acyl moiety). When used, the preferred lactate is C 14 -C 20 lactate, and more preferably C 16 -C 18 Lactates, such as palmitoyl-1-lactate, stearoyl-1-lactate, or mixtures thereof. Polylactic acids (typically numbered 2 to 3 lactyl groups) are also suitable, such as palmitoyl-2-lactate, stearoyl-2-lactate, or mixtures thereof. In embodiments of the invention, sodium lauroyl lactate, sodium stearoyl lactate, or mixtures thereof are preferred optional lactates.

[0050] Another anion suitable for optional use is R. b When the group is hydrogen, the anion represented by formula (III) is glycolate.

[0051] Regarding the optional anionic surfactants, when used, they typically constitute less than 25% by weight of the total weight of anionic surfactants in the layered detergent composition. In embodiments of the invention, such optional anionic surfactants constitute less than 20% by weight, or less than 15% by weight, or 0.001 to 12% by weight, or 0.01 to 9% by weight, or 0.01 to 5% by weight of the total weight of anionic surfactants in the layered detergent composition. Moreover, in embodiments of the invention, the total anionic surfactants used in the layered detergent composition are acyl hydroxyethyl sulfonate and acyl taurate.

[0052] The zwitterionic surfactants applicable to this invention comprise C6 to C6. 20 And preferably C6 to C 18 And the optimal choice is C8 to C 18 The hydrophobic chain (i.e., constituting the acyl moiety), wherein 2.5% to 35% by weight of the total weight of the zwitterionic surfactant, preferably 3% to 32%, and most preferably 3.5% to 30%, or 3.8% to 28%, or 4% to 20%, or 5% to 19%, or 6% to 18%, or 8% to 15% is C8 to C9. 10 Hydrophobic chain, and C8 chain with C 10 The amphoteric surfactant is present in a weight ratio of 1:12 to 12:1, 1:7.5 to 7.5:1, 1:5 to 5:1, 1:2.5 to 2.5:1, 1:1.5 to 1.5:1, 1:1.25 to 1.25:1, 1:1.15 to 1.15:1, or 1:1. Based on the total weight of the amphoteric surfactant, such amphoteric surfactant further comprises 38 to 55% by weight, preferably 40 to 50% by weight, and most preferably 42 to 48% by weight or 42 to 46% by weight of C. 12 Hydrophobic chain.

[0053] Regarding the specific zwitterionic surfactants mentioned in this article, which have hydrophobic chains as defined and have C 12 A mixture of hydrophobic surfactants, comprising 38 to 55% by weight of the total weight of the zwitterionic surfactants in the layered detergent composition. For the avoidance of doubt and for illustrative purposes, when the selected zwitterionic surfactant is cocamidopropyl betaine, the betaine has a C4 content of 38 to 55% by weight of the total weight of the betaine in the layered detergent composition. 12 Hydrophobic chains are limited by the distribution of the described additional chains.

[0054] Amphoteric surfactants suitable for inclusion in the layered detergent compositions of the present invention (limited by the chain distribution described) include those having at least one acid group. The acid group may be a carboxylic acid or sulfonic acid group. They typically include quaternary nitrogen groups and are therefore quaternary amino acids. Such surfactants should generally include alkyl or alkenyl groups of 6 to 18 carbon atoms and generally conform to the following overall structural formula: R 3 --[--C(O)--NH(CH2) q --] r --N + --(R 4 --)(R 5 A--B (IV) where R 3 It is an alkyl or alkenyl group with 5 to 19 carbon atoms; R 4 and R 5 Each is independently an alkyl, hydroxyalkyl, or carboxyalkyl group with 1 to 3 carbon atoms; q is 2 to 4; r is 0 or 1; A is an alkylene group with 1 to 3 carbon atoms optionally substituted with a hydroxyl group, and B is -CO2- or -SO3-.

[0055] Suitable zwitterionic surfactants that can be used in this invention and within the above general formula include simple betaine of the following formula: R 3’ --N + --(R 4 (R) 5 CH2CO2 - (V) and the following amide betaine: R 3 --CONH(CH2) t --N + --(R 4 (R) 5 CH2CO2 - (VI) where t is 2 or 3.

[0056] In both equations, R 3 R 4 and R 5 As previously defined. R 3 Specifically including C7 to C 17A mixture of alkyl groups, and R 4 and R 5 Preferably, it is methyl or ethyl, and most preferably methyl. R 3’ It is C6 to C 18 .

[0057] Another possibility is that the zwitterionic surfactant is sulfobetaine of the following formula: R 3’ --N + --(R 4 (R) 5 (CH2)3SO3 - (VII) or R 3 --CONH(CH2) u --N + --(R 4 (R) 5 (CH2)3SO3 - (VIII) where u is 2 or 3, or where -(CH2)3SO3 - -CH2C(OH)(H)CH2SO3 - These are alternative variations.

[0058] In these equations (VII and VIII), R 3 R 3’ R 4 and R 5 As previously defined.

[0059] Illustrative examples of suitable zwitterionic surfactants include betaines, such as lauryl betaine, lauryl hydroxysulfonyl betaine, lauryl dimethyl betaine, cocoyl betaine, cocamidopropyl hydroxysulfonyl betaine, cocoyl dimethyl carboxymethyl betaine, cocamidopropyl betaine, lauryl ammonium propyl betaine, cocoyl dimethyl carboxymethyl betaine, and mixtures thereof.

[0060] Other suitable zwitterionic surfactants include lauryl hydroxysulfonate betaine, cocamidopropyl hydroxysulfonate betaine, or mixtures thereof. Such surfactants are commercially available, and the use of mixtures of the above surfactants is within the scope of this invention. In a preferred embodiment, the zwitterionic surfactant used in the detergent composition of this invention is cocamidopropyl betaine, and similarly, is limited by the aforementioned chain distribution.

[0061] In embodiments of the invention, less than 20% by weight, and preferably less than 35% by weight, and most preferably less than 50% by weight, or less than 70% by weight, or less than 85% by weight, or less than 95% by weight, of the hydrophobic portion of the zwitterionic surfactant is recovered from petroleum, palm oil, palm kernel oil, and / or coconut oil. In another preferred embodiment, 100% of the hydrophobic portion of the zwitterionic surfactant is not recovered from petroleum, palm oil, palm kernel oil, and / or coconut oil.

[0062] In even another embodiment of the invention, any surfactant used in the layered washing composition, in 0.0 to 15% by weight, 0.05 to 12% by weight, or 0.5 to 10% by weight, may have a hydrophobic portion, wherein the carbon is recovered from purple carbon, i.e., carbon recovered from carbon dioxide waste gas by utilizing a biotechnology of microbial gaseous fermentation.

[0063] In yet another embodiment, at least 10% by weight or at least 25% by weight, and preferably at least 40% by weight, and most preferably 40 to 100% by weight, or 50 to 100% by weight, or 55 to 95% by weight or 100% by weight of the zwitterionic surfactant used may have a hydrophobic portion recovered from triglycerides, such as those from jojoba, avocado, olive and nuts, and from seed oils (e.g. sunflower, flaxseed, rapeseed), particularly those recovered from soybean oil.

[0064] As described, the zwitterionic surfactant accounts for 3 to 7.5% by weight of the layered detergent composition, preferably 3.5 to 7% by weight, and most preferably 3.75 to 6.75% by weight (or 4 to 6.5% by weight, or 4.25 to 6.25% by weight, or 4.5 to 6% by weight, or 4.65 to 5.5% by weight).

[0065] In embodiments of the invention, at least 75% by weight, and preferably at least 85% by weight, and most preferably at least 90% by weight (or 90 to 100% by weight, or 92 to 99% by weight, or 94 to 97% by weight, or 95 to 99% by weight, or 100% by weight) of the total weight of the zwitterionic surfactant used in the layered detergent composition is a surfactant having the chain distribution described above.

[0066] Optional zwitterionic surfactants may be used, and if desired, these shall comprise less than 25% by weight of the total zwitterionic surfactants in the layered detergent composition. Preferably, such optional zwitterionic surfactants comprise less than 20% by weight, or less than 15% by weight, or 0.001 to 12% by weight, or 0.01 to 9% by weight, or 0.01 to 5% by weight of the total zwitterionic surfactants in the layered detergent composition. In embodiments of the invention, only zwitterionic surfactants satisfying the chain distribution defined herein (i.e., 100% by weight of zwitterionic surfactants) are used in the layered detergent compositions of the invention.

[0067] The optional zwitterionic surfactant that may be included is C 16-20 Aminopropylhydroxysulfonate, of which C 16-20 Aminopropyl hydroxysulfonate betaine is preferably palmityl, stearyl, and / or oleylaminopropyl hydroxysulfonate betaine, with palmitylaminopropyl hydroxysulfonate betaine being the most preferred. Other suitable amphoteric surfactants that may be used optionally include behenyl betaine, decyl / decanoamide propyl betaine, stearyl betaine, myristyl hydroxysulfonate betaine, or mixtures thereof.

[0068] Nonionic surfactants may optionally be used in the layered washing compositions of the present invention. When used, nonionic surfactants are typically used at levels as low as 0.001 wt%, 0.02 wt%, 0.03 wt%, 0.05 wt%, 1 wt%, 1.5 wt%, or 2 wt% of the layered washing composition and as high as 3 wt% or 4 wt%. Permissible nonionic surfactants include the reaction products of compounds having hydrophobic groups and reactive hydrogen atoms (e.g., aliphatic alcohols, acids, amides, or alkylphenols) with alkyl oxides (particularly ethylene oxide alone or ethylene oxide with propylene oxide). Specific nonionic surfactant compounds are alkyl (C6-C6) compounds. 22 ) Phenolic ethylene oxide condensate, aliphatic (C8-C) l8 The condensation products of linear or branched primary or secondary alcohols with ethylene oxide, and products obtained by the condensation of ethylene oxide with the reaction products of propylene oxide and ethylenediamine. Other nonionic surfactants include dialkyl sulfoxides, etc.

[0069] In embodiments of the present invention, the optional nonionic surfactant may include fatty acid / alcohol ethoxylates having the following structure: a) HOCH2(CH2) s (CH2CH2O) v H or b) HOOC(CH2) c (CH2CH2O) dH; where s and v are each independently an integer up to 18; and c and d are each independently an integer of 1 or greater. In another embodiment, s and v are each independently from 6 to 18; and c and d are each independently from 1 to 30. Other options for nonionic surfactants include those having the formula HOOC(CH2). i -CH=CH-(CH2) k (CH2CH2O) z H, wherein i and k are each independently 5 to 15; and z is 5 to 50. In another embodiment, i and k are each independently 6 to 12; and z is 15 to 35.

[0070] Optional nonionic surfactants may also include glycoamides, such as polyglycoamides. Specifically, the surfactant may be one of the lactosamides described in U.S. Patent No. 5,389,279, entitled "Compositions Comprising Nonionic Glycolipid Surfactants," issued February 14, 1995, by Au et al. Nonionic surfactants may also include one of the glycoamides described in U.S. Patent No. 5,009,814, entitled "Use of N-PolyHydroxyalkyl Fatty Acid Amides as Thickening Agents for Liquid Aqueous Surfactant Systems," issued April 23, 1991, by Kelkenberg.

[0071] In embodiments of the present invention, the nonionic surfactant used is denoted as R. 6 -O-(S) p Alkyl polyglucosides, of which R 6 It is C6 to C 20 Or C8 to C 18 Or C 10 To C 16 The alkyl group is a straight or branched chain, and S is a sugar group with 5 or 6 carbons, such as glucose, xylose, lactose, fructose and / or mannose, and preferably glucose, and p represents the degree of polymerization and can have a value of 1 to 12 or 1 to 10, and most preferably 1.2 to about 1.6 or 1.3 to 1.5.

[0072] In yet another embodiment of the invention, the nonionic surfactant used is cocamide monoethanolamine (cocamide MEA), glyceryl monostearate, and / or polyglycerol esters, such as polyglycerol-8 caprylate, polyglycerol-8 decanoate, polyglycerol-8 myristate, polyglycerol-8 palmitate, polyglycerol-9 caprylate, polyglycerol-9 decanoate, polyglycerol-9 laurate, polyglycerol-9 myristate, polyglycerol-9 palmitate, or mixtures thereof. When used, these nonionic surfactants typically constitute 0.01 to 2% by weight, 0.02 to 1.85% by weight, or 0.03 to 1.5% by weight (or 0.03 to 1% by weight) of the detergent composition. In another embodiment, the nonionic surfactant used is glyceryl monostearate, which is present in an amount of 0.01 to 0.5% by weight, 0.01 to 0.2% by weight, or 0.01 to 0.07% by weight of the layered detergent composition. In yet another embodiment, the layered detergent composition of the invention does not contain any nonionic surfactant, i.e., 0.0% by weight of nonionic surfactant.

[0073] In yet another embodiment of the invention, a cationic surfactant may optionally be used in the layered detergent composition described herein.

[0074] One class of optional cationic surfactants includes heterocyclic ammonium salts, such as hexadecyl or stearylpyridinium chloride, methylsulfate alkylamidoethylpyrrolidone, and lapiropyrium chloride.

[0075] Tetraalkylammonium salts are another class of cationic surfactants suitable for optional use. Examples include cetyl or stearyl trimethylammonium chloride or ammonium bromide; hydrogenated palmitate or tallow trimethylammonium halide; behenyl trimethylammonium halide or methyl ammonium sulfate; decyl isononyl dimethylammonium halide; ditow tallow (or distearate) dimethylammonium halide and behenyl dimethylammonium chloride.

[0076] Other types of cationic surfactants that can be used are various ethoxylated quaternary ammonium and ester quaternary ammonium salts. Examples include PEG-5 stearyl ammonium lactate (e.g., Genamin KSL manufactured by Clariant), PEG-2 coconut oil-based ammonium chloride, PEG-15 hydrogenated tallow-based ammonium chloride, PEG-15 stearyl ammonium chloride, dipalmitoyl ethyl methyl ammonium chloride, dipalmitoyl hydroxyethyl methyl sulfate, and stearamide propyl dimethylamine lactate.

[0077] Suitable cationic surfactants, and even other useful ones, include quaternized hydrolysates of silk, wheat, and keratin, and mixtures of such surfactants are within the scope of this invention.

[0078] If used, cationic surfactants typically comprise no more than 1.0% by weight of the layered detergent composition. When present, they typically comprise 0.01 to 0.7% by weight of the composition, and more typically 0.1 to 0.5% by weight (or 0.1 to 0.3% by weight). In yet another embodiment of the invention, the layered detergent composition of the invention is free of cationic surfactants, i.e., 0.0% by weight of cationic surfactants.

[0079] Amphoteric surfactants may optionally be included in the detergent composition. Illustrative examples include cocoylamine oxide, laurylamine oxide, myristylamine oxide, palmitylamine oxide, stearylamine oxide, oleylamine oxide, cocamidopropylamine oxide, laurylamidopropylamine oxide, myristylamidopropylamine oxide, palmitylamidopropylamine oxide, stearylamidopropylamine oxide, oleamide propylamine oxide, or mixtures thereof.

[0080] Other suitable amphoteric surfactants for optional use include imidazolines, sodium acylamphoacetate, sodium acylamphopropionate, disodium acylamphodiacetate, and disodium acylamphodiapropionate, wherein the acyl group (i.e., alkyl acyl group) may contain C7-C. 18 Alkyl moiety. Illustrative examples of suitable amphoteric surfactants include sodium lauroylamphoacetate, sodium cocoamphoacetate, sodium lauroylamphoacetate, sodium cocoamphoacetate, cocoamphopropionate, or mixtures thereof.

[0081] In embodiments of the present invention, when used, the selected amphoteric surfactant may be at least 80% by weight, preferably at least 85% by weight, and most preferably at least 90% by weight (or 90 to 100% by weight, or 94 to 100% by weight, or 94 to 98% by weight, or 100% by weight) of an amine oxide, wherein such amine oxide may have the following formula: R x -N + (R y )2-O-, where R x It is C 8-20 Alkyl, and preferably C 10-18 Alkyl group, with C being the most preferred. 12-18 Alkyl (or C) 12-16 alkyl), and R y Is it H or C? 1-6 Alkyl, or C 1-4 Alkyl or C 1-3 Alkyl or C 1-2 Alkyl or -CH3. In another embodiment of the invention, the preferred amine oxide selected is cocoylamine oxide, laurylamine oxide, myristylamine oxide, palmitylamine oxide, stearylamine oxide, oleylamine oxide, or a mixture thereof.

[0082] If used, the amphoteric surfactant accounts for 0.01 to 3% by weight, 0.04 to 2% by weight, or 0.05 to 1.75% by weight of the detergent composition.

[0083] In embodiments of the invention, a thickener is included in the layered detergent composition of the invention. Based on the total weight of the thickener in the detergent composition, the thickener used comprises less than 1.5% by weight, preferably less than 1.25% by weight, and most preferably less than 1% by weight (or less than 0.5% by weight, or 0.001 to 0.9% by weight, or 0.0% by weight) of a quaternized hydroxyethyl cellulose polymer with a molecular weight of 195 to 825 kDa (or 185 to 950 kDa, or 170 to 900 kDa, or 150 to 1000 kDa). Such a thickener, classified as quaternized hydroxyethyl cellulose (e.g., polyquaternium-67), accounts for less than 1.5% by weight of the total weight of the thickener in the layered detergent composition. In another embodiment of the invention, polyquaternium-67 is not used in the layered detergent composition of the invention (i.e., 0.0% by weight).

[0084] Optional thickeners include polymeric carbohydrate thickeners, such as unmodified starch granules, typically potato starch, waxy corn starch, and simple corn starch, i.e., starch that gels at about 75°C. Pure-Gel® starch from GrainProcessing Corporation is chemically modified corn starch granules with a gelation temperature of about 53°C and is generally considered for use. Modified and / or unmodified starch granules with a gelation temperature of 30 to 85°C, preferably 30 to 80°C, and most preferably 35 to 75°C, are suitable as polymeric carbohydrate thickeners to be included in the layered washing compositions of the present invention. Generally, although starch is chosen, it is generally preferred that the selected polymeric carbohydrate granules swell in the final layered washing composition by at least 200% by volume, preferably at least 400% by volume, more preferably at least 600% by volume, and most preferably at least 800% by volume, to form swollen starch gel particles with a size ranging from 2 to 300 micrometers, or preferably 3 to 275 micrometers, and most preferably 4 to 245 micrometers. Examples of suitable thickeners include Pure Gel B990, Pure Gel B992, Pure Gel B980, and Pure Dent starch, all commercially available from Grain Processing Corporation. Other suitable polymeric carbohydrates (i.e., starch granules) include National™ 1545, Amioca corn starch, Clearjel, National 1333, Colflo 67, Novation 1600, Novation 2700, or Purity 420, all available from Ingredion. Chemically modified starch granules are also suitable. Starch granules modified with nonionic hydrophilic groups, such as hydroxyethyl or hydroxypropyl, and / or ionic groups, such as phosphate, carboxylate, sulfate, or sulfonate groups, and dialkyl / trialkylamino groups may also be applicable.

[0085] Even other suitable polymeric carbohydrates are water-soluble starches, such as Ultra-Sperse®, tapioca starch, and waxy corn starch, as well as National 1215 pregelatinized unmodified corn starch or mixtures thereof. Others include Structure® ZEA and Structure® (2143 or 6892), hydroxypropyl-modified corn starch or Structure® XL, cross-linked pregelatinized hydroxypropyl starch phosphate, or mixtures thereof, which are also commercially available from Nouryon. Others, such as BASF and Cargill, offer Cosmedia® HP Starch and StarDesign™ Care, respectively. This hydroxypropyl starch phosphate has a molecular weight of 238 (C 27 H48 O 10 ), Cas No. 53124-00-8.

[0086] Other useful thickeners that can be used include carbohydrate gums such as cellulose gum, microcrystalline cellulose, cellulose gel, hydroxyethyl cellulose, hydroxypropyl cellulose, sodium carboxymethyl cellulose, hydroxymethyl or carboxymethyl cellulose, methyl cellulose, ethyl cellulose, guar gum, ebony gum, tragacanth gum, gum arabic, acacia gum, agar gum, xanthan gum, and mixtures thereof; modified and unmodified starch granules typically have a gelling temperature of 30 to 85°C.

[0087] Alternatively, other thickeners that can be used include Versathix™ (PEG-150 pentaerythritol tetrastearate (and) PPG-2 hydroxyethyl cocoamide and water), Aristoflex AVC (ammonium acryloyl dimethyl taurate / VP copolymer), and carbomers such as Carbopol 980 (crosslinked polyacrylic acid). ® Ultrez 10 and 20 (hydrophobically modified crosslinked polyacrylic acid); alkali-soluble emulsion polymers such as Aculyn 28, Acuyln 22, or Carbopol Aqua SF1; cationic polymers such as modified polysaccharides, including cationic guar gum, available from Solvay Novecare under the trade names Jaguar® C13S, Jaguar® C14S, Jaguar® C17, or Jaguar® C16; cationic modified cellulose, such as UCARE™ polymer JR 30M from Dow; and N-Hance™ 3000, N-Hance™ 3196, N-Hance™ GPX 215, or N-Hance™ GPX 196 from Ashland, Inc.

[0088] In one embodiment, the thickener used is a cationic guar polymer, namely guar hydroxypropyltrimethylammonium chloride (including those with a charge density of 0.8 to 8, and preferably 1 to 7.5 or 1.2 to 7.2, wherein the molecular weight (Mn) is in the range of 8,000 to 10,000,000,000, or 9,000 to 7,000,000, or 9,500 to 5,500,000), which is combined with starch (preferably sodium hydroxypropyl starch phosphate) in a weight ratio of cationic guar polymer to starch of 1:20 to 1:5, or 1:15 to 1:6, or 1:13 to 1:7, or 1:12 to 1:8, or 1:11 to 1:9. A preferred guar hydroxypropyltrimethylammonium chloride is Jaguar® C14S (guar 2-hydroxy-3-trimethylaminopropyl ether chloride, CAS No. 65497-29-2).

[0089] In another embodiment of the invention, the thickener used in the washing composition is less than 1% by weight, and preferably less than 0.5% by weight, and most preferably less than 0.25% by weight, or less than 0.15% by weight, or 0.0% by weight, and is based on acrylates, such as those called acryloyl dimethyl taurate / VP copolymers.

[0090] The total amount of thickener used is typically 1.75 to 6% by weight of the layered detergent composition, and preferably 1.95 to 5.5% by weight, and most preferably 2.25 to 5.5% by weight (or 2.75 to 5% by weight, or 2.75 to 4.75% by weight, or 2.75 to 4.5% by weight, or 2.95 to 4.5% by weight).

[0091] In embodiments of the invention, the total amount of acyl hydroxyethyl sulfonate used exceeds the total amount of acyl taurate used by 20% or less, or by 10% or less. In yet another embodiment, the total amount of acyl hydroxyethyl sulfonate used exceeds the total amount of acyl taurate by 0.5% to 4% or 1% to 3% by weight of the total weight of the anionic surfactant. In another embodiment, the amount of acyl hydroxyethyl sulfonate does not exceed the amount of acyl taurate used, and in a further embodiment, the total weight of acyl hydroxyethyl sulfonate and acyl taurate in the layered detergent composition is 50% to 70% by weight, preferably 50% to 65% by weight, and most preferably 52% to 62% by weight (or 54% to 60% by weight) of acyl taurate.

[0092] In another embodiment, the washing composition of the present invention may comprise an electrolyte, such as MgCl2, CaCl2, KCl, NaCl, or a mixture thereof. In even another embodiment, such an electrolyte may be provided alone or together with a diol having the following formula: H-(OC(CH3H)CH2) u -OH (IX) where u is 6 to 12, preferably 7 to 11, or 8 to 10, and most preferably an integer of 9 (polypropylene glycol 9 (PPG-9)).

[0093] The total amount of electrolyte in the layered detergent composition is generally less than 3.25% by weight of the electrolyte in the detergent composition, and preferably less than 3% by weight, and most preferably less than 2.5% by weight (or 0.5 to 2.3% by weight, or 0.75 to 2.25% by weight, or 1 to 2.2% by weight).

[0094] A occlusive agent is suitable and generally desired for use in the washing compositions of the present invention, comprising any oil that can be applied topically by means of the washing composition, and preferably, a natural and sustainable oil suitable for contact with the skin. When used, the occlusive agent typically comprises a mixture of occlusive agents, namely, a first occlusive agent having a droplet size of 1 to 250 micrometers, preferably 1 to 100 micrometers, and most preferably 1 to 50 micrometers (or 2 to 40 micrometers, 2 to 35 micrometers, 2 to 10 micrometers, or 2.5 to 8 micrometers), and a second occlusive agent (different from the first occlusive agent as defined herein) having a droplet size of less than 1 micrometer or 25 to 950 nm, preferably 40 to 800 nm, and most preferably 50 to 750 nm (or 65 to 700 nm, or 70 to 650 nm, or 80 to 650 nm, or 120 to 625 nm).

[0095] The first sealing agent having a droplet size of 1 to 250 micrometers may include silicone oil and / or mineral oil, but preferably includes naturally derived and sustainable oils such as peanut oil, castor oil, coconut oil, corn oil, cottonseed oil, olive oil, rapeseed oil, safflower oil, sesame oil, soybean oil, hydrogenated soybean oil, avocado oil, macadamia oil, argan oil, pomegranate oil, argan oil, blueberry oil, raspberry oil, walnut oil, pecan oil, peanut oil, bayberry oil, mango seed oil, jojoba oil, hydrolyzed jojoba oil, and mixtures thereof. If silicone oil is optionally used, it may include, for example, PEG-3 polydimethylsiloxane, PEG-8 polydimethylsiloxane, PEG-9 polydimethylsiloxane, PEG-10 polydimethylsiloxane, PEG-11 methyl ether polydimethylsiloxane, PEG-12 polydimethylsiloxane, PEG-14 polydimethylsiloxane, PEG-17 polydimethylsiloxane, PEG-32 polydimethylsiloxane, and mixtures thereof.

[0096] In embodiments of the invention, the oils used include a mixture of soybean oil (liquid at 25°C) and hydrogenated soybean oil (solid at 59°C, melting point 61-66°C), wherein the soybean oil and hydrogenated soybean oil are present in a weight ratio of 1:4 to 4:1, preferably 1:3 to 3:1, and most preferably 1:2 to 2:1. In another embodiment of the invention, the hydrogenated soybean oil accounts for 48 to 70% by weight, preferably 52 to 68% by weight, and most preferably 55 to 65% by weight of the total weight of the soybean oil and hydrogenated soybean oil mixture used in the layered washing composition.

[0097] In yet another embodiment of the invention, the layered washing composition of the present invention comprises 0.9 to 8% by weight, preferably 1.0 to 7.5% by weight, and most preferably 1.5 to 6.0% by weight (or 1.75 to 5.8% by weight, or 2.0 to 5.5% by weight, or 3 to 5.5% by weight), a first sealing agent based on the total weight of the layered washing composition. In yet another embodiment, the oil used in the first sealing agent is a mixture of at least 70% by weight, or at least 80% by weight, or 90 to 100% by weight, or 100% by weight of soybean oil and hydrogenated soybean oil. In even another embodiment, the washing composition of the present invention comprises less than 0.2% by weight or does not contain (0.0% by weight) petroleum-derived oil. In yet another embodiment, when oil is used, less than 0.5% by weight or 0.0% by weight of the total weight of the oil used is silicone oil.

[0098] Regarding the first sealing agent, it is uniformly dispersed in the layered washing composition (using conventional equipment and moderate shear, with a temperature ranging from 30 to 85°C, typically varying between 45 and 75°C), thereby forming oil droplets or particles with a size of 1 to 250 micrometers, preferably 1 to 100 micrometers, and most preferably 1 to 50 micrometers (or with a size of 2 to 40 micrometers, 2 to 35 micrometers, 2 to 10 micrometers, or 2.5 to 8 micrometers).

[0099] Regarding the second sealing agent, and as defined, such a sealing agent differs from the first sealing agent and may include compositions conventionally classified as petrolatum, CAS No. 8009-03-08, wherein such sealing agent is a combination of hydrocarbons having a carbon chain longer than 25. Thus, petrolatum is characterized by compositions made primarily of a series of alkanes, which can be obtained, for example, by dewaxing (or refining) lubricating oil feedstocks, thereby melting at temperatures of 35 to 72°C (more typically 40 to 70°C) and boiling at temperatures of 285°C or higher and typically between 295 and 325°C. This sealing agent is characterized by being semi-solid at room temperature (22°C) and exhibiting good local diffusion at the skin's natural temperature of 33 to 37°C. Free of polycyclic aromatic compounds, the most well-known and best-produced petrolatum is sold under the trade name Vaseline®. As used herein, petrolatum and petrolatum are intended to be the same. As used in this article, semi-solid means soft like Vaseline®, not pourable at room temperature, but spreadable on the skin at room temperature.

[0100] Other materials suitable for use as a second sealing agent and generally required are those made into petroleum jelly-like materials (“petroleum jelly substitutes” or “alternatives”) but not derived from petroleum or any byproducts or residues recovered from its processing (such as processing for gas production). Therefore, they are preferably plant-based, sustainable soft solids that melt at temperatures similar to those described for petroleum jelly (more typically 29-65°C). In one embodiment of the invention, the petroleum jelly substitutes used have a melting point of 30 to 62°C, or 30 to 60°C, or 30 to 55°C, or 30 to 50°C, or 30 to 45°C.

[0101] In a further embodiment of the invention, a suitable petrolatum substitute may be a plant-based substitute comprising 10 to 60 wt% triglycerides; 5 to 40 wt% castor oil; 10 to 50 wt% glycerol; and 0.5 to 10 wt% polyglycerol ricinoleate.

[0102] In this plant-based alternative, the triglycerides used may include caprylic / capric triglycerides, coconut oil, sunflower oil, safflower oil, cottonseed oil, olive oil, or mixtures thereof. Caprylic / capric triglycerides, coconut oil, or both are particularly desirable.

[0103] The amount of triglycerides can be from 10 to 60% by weight of the second sealing agent (i.e., a plant-based alternative), preferably from 20 to 50% by weight, and most preferably from 30 to 45% by weight.

[0104] Another suitable component for plant-based alternatives is castor oil, and particularly hydrogenated castor oil, castor seed oil, or combinations thereof. The amount of castor oil may be 5 to 40% by weight of the second blocking agent, preferably 10 to 30% by weight, and most preferably in the range of 15 to 25% by weight, and as calculated herein, castor oil is not intended to be included in the total triglycerides.

[0105] A further useful component in this alternative is glycerol. Its amount can be from 10 to about 50% by weight of the alternative, preferably 20 to 40% by weight, and most preferably in the range of 25 to 35% by weight.

[0106] The additional component required in the plant-based alternative (i.e., the second sealing agent) is polyglycerol ricinoleate. The number of glycerol repeating units can range from 2 to 20, preferably 4 to 10, and most preferably 4 to 8 or about 6 repeating units. The term "ricinoleate" refers to mono-ricinoleate and poly-ricinoleate comprising glycerol. When the ricinoleate is in a polymeric form, the number of mono-ricinoleate units can range from 2 to 20, preferably 2 to 10, or 2 to 5. Most preferably is polyglycerol-6 polyricinoleate, which has the INCI name polyglycerol-6 polyricinoleate. The amount of this material in the alternative can be 0.5 to 10% by weight, preferably 1 to 8% by weight, and most preferably 4 to 6% by weight.

[0107] In such alternatives, it is generally desirable to include fatty acid substances selected from trihydroxystearin and combinations thereof. When present, the amount of these materials can be from 0.1 to 15% by weight of the alternative, preferably from 0.5 to about 10% by weight, and most preferably from 2 to 8% by weight, or from 3 to 6% by weight.

[0108] This plant-based alternative is substantially anhydrous, and therefore contains 0 to 5% by weight, preferably 0 to 2% by weight, and most preferably 0 to 1% by weight or 0.0% by weight, of water based on the total weight of the alternative (i.e., the second sealing agent). Further descriptions of the plant-based alternatives applicable to the present invention can be found in U.S. Patent No. 8,524,211, the disclosure of which is incorporated herein by reference.

[0109] Simulated petrolatum (i.e., suitable alternatives as a second sealant) and other materials that may be included with other alternatives or used as the sole alternative include those generally classified as natural oil alternatives. These suitable second sealants are 55 to 85% by weight of fully hydrogenated castor oil and 15 to approximately 45% by weight of C 8-22 Esterification products of branched or straight-chain fatty acids.

[0110] In another embodiment, in addition to castor oil, such alternatives include 55 to about 85% by weight of fully hydrogenated castor oil and 15 to 45% by weight of C 8-22 Esterification products of branched or straight-chain fatty acids and 5 to 15% by weight of hydrogenated natural oils.

[0111] Illustrative examples of such natural oils suitable as alternatives include canola oil, avocado seed oil, pumpkin seed oil, rapeseed oil, coconut oil, corn oil, cottonseed oil, olive oil, palm oil, peanut oil, walnut oil, safflower oil, sesame oil, soybean oil, sunflower oil, flaxseed oil, palm kernel oil, tung oil, jatropha oil, mustard oil, flaxseed oil, penny cressoil, hemp seed oil, seaweed oil, jojoba oil, lard, beef tallow, poultry fat, yellow fat, fish oil, or mixtures thereof.

[0112] These alternatives also mimic petrolatum or petrolatum. They typically have a melting point of 30 to 70°C as measured by AOCS standard procedure Cc 18-80, and may have an acid value of less than about 20.0, 2% to about 7% of a combination of monoglycerides and diglycerides, an iodine value of less than about 3.0, or any combination of these characteristics. In one embodiment of the invention, such an alternative comprises less than 15% by weight, preferably less than 10% by weight, and most preferably less than 5% by weight (or 0.001 to 3.2% by weight, or 0.01 to 2.5% by weight, or 0.0% by weight) of palm kernel oil or coconut oil, or both.

[0113] In even another embodiment, these natural oil substitutes comprise less than 10% by weight of total monoacylglycerols and diacylglycerols, and may comprise 1 to 8% of a mixture thereof. These types of natural oil substitutes are described in WO2309137 A1, the disclosure of which is incorporated herein by reference.

[0114] Other alternatives that can be used or used as a second blocking agent include those generally described as follows: natural alternatives to the esterified product comprising a pre-esterified mixture containing 0.1 to 20 wt% fatty acid dimer and 5 wt% to 30 wt% C 8-22 Fatty acids and 65% to 95% hydrogenated natural oil, and the petrolatum substitute having an acid value of less than 25.0, as described in WO 22150812 A1, the disclosure of which is incorporated herein by reference; a natural oil-based petrolatum composition comprising an esterified product of a pre-esterified mixture containing 5 to 35% by weight of fatty acid dimers and 20 to 55% by weight of one or more C... 1-3 C substituted with alkyl substituents 8-22A natural oil-based petrolatum composition comprising fatty acids, about 5 to 20 wt% glycerol and about 20 to 40 wt% hydrogenated natural oil, wherein the natural oil-based petrolatum product has an acid value of less than 10.0, as described in WO 22150813 A1, the disclosure of which is incorporated herein by reference; a natural oil-based petrolatum composition comprising an esterified product of a pre-esterified mixture comprising about 15 to 25 wt% fatty acid dimer based on the total weight of the pre-esterified mixture; 15 to 25 wt% glycerol based on the total weight of the pre-esterified mixture; and 55 to 70 wt% hydrogenated natural oil based on the total weight of the pre-esterified mixture; wherein the natural oil-based petrolatum product has an acid value of less than about 5.0, as described in WO 22150814. The disclosure described in A1 is incorporated herein by reference; and a natural oil-based petrolatum composition comprising a pre-esterified mixture comprising 0.1 to 40 wt% fatty acid dimers and 60 to 99.9 wt% of one or more of C 2-6 Components of polyols, natural oils, hydrogenated natural oils, fatty acids and acylglycerols, wherein the natural-based petrolatum products have a cone penetration value greater than 10 and a polydispersity index greater than 1.3, as described in WO 221150815 A1, the disclosure of which is incorporated herein by reference.

[0115] In embodiments of the invention, the second sealing agent is present in the layered washing composition of the invention as droplets or particles with a size less than 1 micrometer, and therefore in the nanometer (nm) size range. Typically, this second sealing agent is present in a size range of 25 to 950 nm, preferably 40 to 800 nm, most preferably 50 to 750 nm (or 65 to 700 nm, or 70 to 650 nm, or 80 to 600 nm, or 120 to 625 nm). Such measurements (volume moment mean diameter D[4,3]) of all droplet sizes described herein can be obtained according to the conventions in ASTM E 799, Practice for Determining Data Criteria and Processing for Drop Size Analysis.

[0116] In another embodiment, and with regard to this second blocking agent, it can be provided as a component when preparing a layered washing composition in an aqueous continuous emulsion having submicron droplets within a defined size range. This aqueous continuous emulsion typically contains 30 to 85 wt% or 35 to 80 wt%, preferably 35 to 75 wt% or 35 to 72 wt%, and most preferably 40 to 70 wt% (or 40 to 65 wt% or 45 to 65 wt% or 55 to 65 wt%) of blocking agent, and 1 to 15 wt%, preferably 2 to 12 wt%, and most preferably 3 to 10 wt% (or 4 to 9.25 wt% or 5 to 8 wt%) of emulsifier (having 8 or higher, and typically 10 to 20 or 10 to 16 HLB). Suitable emulsifiers that can be used include glyceryl monostearate, sorbitan stearate, glyceryl cocoate, cetearyl glucoside, PEG-8 oleate, or mixtures thereof. In embodiments of the invention, the emulsifier used comprises at least one anionic surfactant in the layered detergent composition. Preferably, it is hydroxyethyl sulfonate, taurate, or both. In yet another embodiment, the emulsifier used in the emulsion is sodium lauroyl hydroxyethyl sulfonate and sodium methyl lauroyl taurate in a weight ratio of 1:4 to 4:1, or 1:3 to 3:1, or 1:2 to 2:1, or 1.5:1 to 1:1.5, or 1:1. Water constitutes the balance of such emulsion.

[0117] In even another embodiment, the second sealing agent may contain 5 to 25% by weight, or 10 to 25% by weight, or 6 to 12% by weight of shea butter, based on the total weight of the second sealing agent. Such an emulsion with submicron droplets can be prepared by mixing a first emulsion under heating (typically 50 to 70°C to produce a crude emulsion) and then using a high-pressure apparatus (such as a high-pressure acoustic spectrometer) at a pressure greater than or equal to 1000 psi (6.9 MPa), preferably 1,500 to 5,000 psi (10.3 to 34.5 MPa), or 1,500 to 4,500 psi (10.3 to 31 MPa), or 2,000 to 4,000 psi (13.8 to 27.6 MPa). Commercially available acoustic spectrometers can be used to prepare such emulsions with submicron droplets (i.e., nanoemulsions), such as those available from Sonic Corporation.

[0118] This second sealant may have an acid value of 2.8 to 6.2 and a viscosity of 375 to 1150 mPa·s at 40 °C and 70 to 225 mPa·s at 50 °C. In embodiments of the invention, a preferred substitute for the second sealant (or a portion thereof) suitable for use is sold under the name BOTANIJELLY™ and is commercially available from Cargill (INCI hydrogenated vegetable glyceride). Other available sealants that can be used as substitutes or included as substitutes in the second sealant include those commercially sold by Sonneborn under the name SonneNatural™, including varieties J-207, NXG, and PF-1.

[0119] In yet another embodiment, the total blocking agent (i.e., the first and second blocking agents, the weight percentage of the total blocking agent) in the layered detergent composition suitable for use in the present invention is less than 8.25% by weight, preferably less than 8% by weight, and most preferably 2.8 to 8% by weight (or 3 to 7.5% by weight or 3.5 to 7% by weight or 4 to 7% by weight or 4.25 to 6.5% by weight or 4.5 to 6% by weight or 4.5 to 5.5% by weight).

[0120] In another embodiment of the invention, the washing composition of the invention comprises 0.08 to 4.2% by weight, preferably 0.08 to 4% by weight, even more preferably 0.1 to 3.35% by weight, and most preferably 0.1 to 3.2% by weight (or 0.1 to 3.1% by weight, or 0.15 to 1.95% by weight, or 2.2 to 3.4% by weight, or 0.15 to 1.5% by weight, or 0.15 to 1% by weight, or 0.2 to 0.65% by weight, or 0.2 to 0.5% by weight) of a second blocking agent. As for the first blocking agent, in another embodiment, it may comprise 2.25 to 6% by weight of the washing composition.

[0121] In yet another embodiment, the amount of the first sealing agent in the layered detergent composition is 2.2 to 30 times, preferably 7 to 26 times, and most preferably 2 to 25 times (or 15 to 25 times, 16 to 24 times, or 18 to 22 times) by weight of the second sealing agent in the layered detergent composition. In yet another embodiment, the sealing agent used in this invention is not (0.0% by weight) derived from petroleum.

[0122] In yet another embodiment of the invention, the second sealing agent comprises less than 12% by weight, preferably less than 10% by weight, most preferably less than 8% by weight (or less than 6% by weight, or less than 4% by weight, or 0.001 to less than 3% by weight, or 0.0% by weight) of any mixture of soybean oil and hydrogenated soybean oil.

[0123] The washing compositions of the present invention may contain layered structuring agents, such as C6-C. 14 Acids, C6-C14 alcohols, C6-C 14 Amides (i.e., hydroxylated or amide derivatives of acids). Hexanoic acid, octanoic acid, decanoic acid, lauric acid, or myristic acid, or mixtures thereof, and their alcohol or amide derivatives, are generally preferred. In one embodiment of the invention, lauric acid, myristic acid, or both are used as structuring agents, with lauric acid typically preferred.

[0124] When used, the layered structuring agent comprises 1.5 to 7% by weight of the layered detergent composition, preferably 2 to 6.5% by weight, and most preferably 2.5 to 6% by weight (or 3 to 5.5% by weight, 3.5 to 5% by weight, or 3.75 to 4.75% by weight). For the avoidance of doubt, and similarly, the layered structuring agent as used herein refers to a component added to the detergent composition to help induce the surfactant to align into micelles or layers, thereby producing a translucent or opaque layered detergent composition.

[0125] Polyols (i.e., wetting agents) are suitable for optional use in the layered washing compositions of the present invention, and are therefore limited to the extent that they are suitable for use in topical washing compositions. Illustrative and non-limiting examples of polyols suitable for use in the present invention include sorbitol, glycerol, mannitol, xylitol, maltitol, or mixtures thereof. In one embodiment of the invention, the polyol used is at least 50% by weight of glycerol, based on the total weight of the polyols used in the washing composition. In another embodiment of the invention, the polyol used is entirely glycerol (100% by weight). When used, the polyol typically constitutes 0.25 to 12% by weight of the washing composition, and preferably 0.5 to 10% by weight, and most preferably 0.65 to 8% by weight (or 0.75 to 6% by weight, 0.75 to 5% by weight, or 0.8 to 1.75% by weight) of the layered washing composition.

[0126] Water typically comprises 40 to 90% by weight of the washing composition, preferably 40 to 85% by weight, and most preferably 55 to 75% by weight, or 60 to 75% by weight, 64 to 78% by weight, or 65 to 73% by weight of the layered washing composition.

[0127] A suitable pH adjuster can be used to adjust / buffer the pH. Such pH adjusters include triethylamine, NaOH, KOH, H₂SO₄, HCl, C₆H₈O₇ (i.e., citric acid), or mixtures thereof. The pH adjuster is added in an amount sufficient to produce the desired final pH. The pH value can be assessed using commercial instruments, such as pH meters commercially available from Thermo Scientific®. As described, the pH of the layered washing composition of the present invention is 5.75 to 8.25, preferably 5.9 to 8, and most preferably 6 to 7.5 (or 6 to 7.25, 6.1 to 7, or 6.2 to 6.9).

[0128] As described herein, optional water-soluble skin benefits in the layered wash compositions of the present invention are limited to the extent that they can be applied topically and are soluble in the wash composition at the desired pH.

[0129] Illustrative examples of skin-beneficial agents suitable for inclusion in the aqueous portion of a layered cleansing composition are acids, such as amino acids like arginine, valine, or histidine. Other suitable water-soluble beneficiaries include vitamin B2, niacinamide (vitamin B3), vitamin B5 (panthenol), vitamin B6, folic acid (vitamin B9), vitamin C, and mixtures thereof. Water-soluble derivatives of these vitamins may also be used. For example, vitamin C derivatives, such as ascorbate tetraisopalmitate, magnesium ascorbate phosphate, and ascorbate glycoside, may be used alone or in combination with each other. Other suitable water-soluble beneficiaries include 4-ethylresorcinol, water-soluble extracts of sage, aloe vera, green tea, grape seed, thyme, chamomile, yarrow, cucumber, licorice, rosemary, or mixtures thereof. Water-soluble sunscreens, such as ensolazole (phenylbenzimidazole sulfonic acid), disodium phenyldibenzimidazole tetrasulfonate, or mixtures thereof, may also be included. When present in a layered detergent composition, the total amount of optional water-soluble beneficial agents (including mixtures) may be from 0.001 to 15% by weight of the detergent composition, preferably from 0.001 to 10% by weight, and most preferably from 0.01 to 8% by weight (or 1 to 6% by weight or 1 to 3% by weight).

[0130] Optionally, oil-soluble beneficial agents (i.e., non-water-soluble reagents defined as those in which less than 1.0 g of such a beneficial agent (solute) can be dissolved in 100 ml of water (solvent) at 25°C) under atmospheric pressure) are also within the scope of this invention. The only limitation with respect to such oil-soluble beneficial agents is that they provide benefits when applied topically to a surface, such as the skin.

[0131] Illustrative examples of oil-soluble beneficial agents that may be optionally used in the compositions of the present invention include components such as stearic acid, vitamins such as vitamins A, D, E and K (and their oil-soluble derivatives), sunscreens such as ethylhexyl methoxycinnamate, diethylhexyloxyphenol methoxyphenol triazine, 2-ethylhexyl-2-cyano-3,3-diphenyl-2-propionic acid, cresoltrazol trisiloxane, 3,3,5-trimethylcyclohexyl 2-hydroxybenzoate, 2-ethylhexyl-4-hydroxybenzoate, or mixtures thereof.

[0132] Other well-known sunscreens suitable for use include Mexoryl 400 (methoxypropylaminocyclohexene ethoxyethyl cyanoacetate), Mexoryl XL (cresoltrazol trisiloxane), Mexoryl SX (terephthalimide dicamphor sulfonic acid), octocrylene (2-cyano-3,3-diphenylprop-2-enoic acid 2-ethylhexyl ester), or mixtures thereof.

[0133] Other suitable optional oil-soluble resorcinols include resorcinols such as peptido (isobutylthiazolyl resorcinol), 4-hexylresorcinol, 4-phenylethylresorcinol, 4-cyclopentylresorcinol, 4-cyclohexylresorcinol, 4-isopropylresorcinol, or mixtures thereof. Additionally, 5-substituted resorcinols such as 4-cyclohexyl-5-methylphenyl-1,3-diol, 4-isopropyl-5-methylphenyl-1,3-diol, and mixtures thereof may be used. 5-substituted resorcinols and their synthesis are described in commonly assigned U.S. Patent Application Publication No. 2016 / 0000669A1.

[0134] Even other applicable oil-soluble active substances include ω-3 fatty acids, ω-6 fatty acids, clomiphene, farnesol, ursolic acid, myristic acid, geraniol, cocoyl hydroxyethyl imidazoline, hexanoyl sphingosine, phellandrene, conjugated linoleic acid, terpineol, thymol, and mixtures thereof.

[0135] In one embodiment of the invention, the optional oil-soluble beneficial agent used is a retinoic acid precursor. In one embodiment, the retinoic acid precursor is retinol, retinaldehyde, retinyl propionate, retinyl palmitate, retinyl acetate, or a mixture thereof. Retinyl propionate, retinyl palmitate, and mixtures thereof are generally preferred. Another suitable retinoic acid precursor is p-methoxyphenyloxyethanol retinate, which is commercially available under the trade name Retextra®, such as that offered by Molecular Design International. It can be used in combination with the oil-soluble active substances described herein.

[0136] When an optional oil-soluble active ingredient is used in the compositions of the present invention, such active ingredient typically accounts for 0.001 to 2% by weight of the layered detergent composition, preferably 0.001 to 1.5% by weight, and most preferably 0.05 to 1% by weight (or 0.06 to 0.85% by weight).

[0137] Conventional preservatives can be incorporated into the detergent composition as needed to prevent the growth of potentially harmful microorganisms. Cosmetic chemists are familiar with suitable preservatives and often select them to meet preservative challenge tests and provide product stability. While conventional preservatives such as hydantoin derivatives, isothiazolinones, methylparaben, and / or propylparaben can be used, the layered detergent compositions of the present invention are preferably substantially preservative-free, as described herein. Other suitable preservatives may include iodopropynyl butylcarbamate, phenoxyethanol, hydroxyacetophenone, ethylhexylglycerin, hexanediol, imidazolidinyl urea, sodium dehydroacetate, benzyl alcohol, sodium benzoate, or mixtures thereof. Even other suitable preservatives include sodium dehydroacetate, chlorophenoxyethanol, and decanediol. The selection of preservatives should take into account the intended use of the composition and potential incompatibilities between the preservative and other components in the emulsion. Preservatives are preferably used in amounts ranging from 0.01% to 2.0% by weight of the total weight of the detergent composition. Also preferred are preservative systems containing hydroxyacetophenone alone or in mixtures with other preservatives. Common emollients classified as vicinal diols (such as 1,2-octanediol (or other vicinal alkane diols)) are also suitable for use with the preservatives described herein, and are typically used in amounts of 0.15 to 1.5% by weight, preferably 0.2 to 1.25% by weight, and most preferably 0.25 to 1% by weight (or 0.25 to 0.8% by weight) of the laminar wash composition. In another embodiment of the invention, another suitable preservative optionally used in the invention includes capryloyl glycine, undecenoyl glycine, or mixtures thereof.

[0138] In one embodiment of the invention, the detergent composition is substantially free of hydantoin derivatives, parabens, siloxanes, and isothiazolinones as described herein. In another embodiment, the layered detergent composition of the invention contains less than 0.2% by weight of a silver compound, preferably less than 0.1% by weight of a silver compound, and most preferably free of silver compounds such as silver oxides, nitrates, acetates, carbonates, and / or citrates.

[0139] In another embodiment, the layered detergent composition of the present invention may optionally comprise at least one of benzyl chloride, benzalkonium chloride, cetrimonium chloride, zinc pyrithione, chloroxylenol, salicylic acid, citric acid, lactic acid, eugenol, terpineol, thymol, selenium sulfide, piroctone olamine, pineol, linalool, cinnamon oil, lemongrass oil, eucalyptus, vanilla extract, peppermint extract, zinc pyrithione, orange extract, linseed oil, or mixtures thereof. If any of these are chosen to be used, the total amount of those chosen to be used (in total combined weight) is 0.001 to 4.5% by weight, or 0.01 to 3.5% by weight, or 0.01 to 2.5% by weight, or 0.02 to 1% by weight of the layered detergent composition.

[0140] In even another embodiment of the invention, at least one of 1,2-nonanediol tetrahexyldecyl ascorbate, and magnolol, hyaluronic acid, clomiphene, linalool, anisic acid, levulinic acid, hexadecylpyridinium chloride, pyruvate, hemp seed oil and / or magnolia bark extract is used in the layered detergent composition of the invention. If used, it constitutes, alone or in mixtures, 0.001 to 5% by weight, or 0.01 to 4% by weight, or 0.01 to 3.5% by weight, or 0.02 to 2.7% by weight, or 0.02 to 1% by weight, or 0.02 to 0.07% by weight of the layered detergent composition.

[0141] In even another embodiment, the washing composition may optionally be free of fragrance and / or contain less than 0.5% by weight (preferably 0.0% by weight) of dye, phthalate, or both.

[0142] Fragrances, fixatives, chelating agents (such as EDTA, sodium phytate, tetrasodium glutamate diacetate, and / or sodium gluconate), and exfoliants may optionally be included in the washing compositions of the present invention. If used, each of these substances may be in the range of about 0.03 to about 5% by weight of the total weight of the washing composition, preferably 0.01 to 3% by weight (or 0.02 to 1.2% by weight). In the case of using exfoliants, those selected should have a sufficiently small particle size so as not to interfere with the performance of any packaging used to dispense the compositions of the present invention. Exfoliants should also be small enough to be gentle on the skin.

[0143] In the washing composition, conventional emulsifiers with an HLB greater than 8 may optionally be used. Illustrative examples include Tween 40, 60, 80, polysorbate 20, and mixtures thereof. Typically, and if used, such emulsifiers for continuous water washing systems comprise 0.03 to 1.5% by weight of the washing composition.

[0144] The detergent composition of the present invention typically contains no more than 22.25% by weight (or no more than 19% by weight or no more than 18% by weight) of total surfactant, preferably 6 to 17% by weight, more preferably 6 to 16% by weight, and most preferably 7 to 15% by weight (or 7 to 18% by weight, 8 to 18% by weight, 12 to 17.5% by weight, or 13 to 17% by weight) of total surfactant. In one embodiment of the invention, the detergent composition contains 11 to 14.5% by weight of total surfactant. In another embodiment of the invention, the weight ratio of zwitterionic surfactant to anionic surfactant is 1:0.8 to 1:3, or 1:1 to 1:2.7, or 1:1 to 1:2.5, or 1:1 to 1:2, or 1:1 to 1:1.9.

[0145] In even another embodiment of the invention, the detergent composition of the invention comprises stearic acid, terpineol, thymol, chloroxylenol, or mixtures thereof. In yet another embodiment, the detergent composition of the invention comprises any combination of colloidal oats, silica (including hydrated silica and rice silica), ascorbic acid, and hyaluronic acid. When used, these components (alone or together) constitute 0.001 to 2.5% by weight of the layered detergent composition, preferably 0.01 to 1.5% by weight, and most preferably 0.1 to 1% by weight.

[0146] In yet another embodiment of the invention, the washing composition may include a peroxisome proliferator-activated receptor ligand (“PPAR”). The PPAR used is preferably a lipid PPARα (α) activator, such as C 10-18 Saturated fatty acids, which are branched or derivatized (i.e., functionalized) with groups such as hydroxyl groups. The PPARs used may also include C... 10-20 Monounsaturated fatty acids and C 10-22 Polyunsaturated fatty acids. The corresponding alcohols, triglycerides, and phospholipids of any of the described PPAR acids are also applicable to this invention. These include phellic acid, 12-hydroxystearic acid, stearic acid, cis-octadecanoic acid, trans-7-octadecanoic acid, cis-5,8,11,14,17-eicosapentaenoic acid, cis-4,7,10,13,16,19-docosahexaenoic acid, Columbia acid, trans-linolenic acid, trans-ricinoleic acid, octadecanoic acid, 2-hydroxystearic acid, 10-hydroxystearic acid, α-linolenic acid, arachidonic acid, cis-11,14-eicosadienoic acid, conjugated linoleic acid (C9,T11) or (T10,C12), conjugated linoleic acid (a 50:50 mixture of C9,T11 and T10,C12), coriander acid, trans-linoleic acid, monophellic acid, ricinoleic acid, stearic acid, or mixtures thereof.

[0147] Other PPARα activators include cis-11,14,17-eicosalicylic acid, cis-5-eicosalicylic acid, cis-8,11,14-eicosalicylic acid, hexadecanoic acid, palmitoleic acid, trans-pecinanoic acid, trans-farnesol, cis-13,16-docosadienoic acid, cis-isooleic acid, cis-11-eicosalicylic acid, cis-13,16,19-docosadienoic acid, cis-13-octadecanoic acid, cis-15-octadecanoic acid, cis-7,10,13,16-docosatraenoic acid, transoleic acid, gamma-linolenic acid, geraniic acid, geraniylgeraniic acid, linoleic acid, oleic acid, petrocarnetol, phytanoic acid, terpineic acid, tridecyl salicylic acid, or mixtures thereof.

[0148] Another class of suitable PPARα activators includes plant extracts such as chickpea extract (red clover phytoestrogens), *Pyrrosia lingua* extract, pomegranate saponifiable hydrolysate extract, *Lithospermum erythrorhizon* (octadecanoic acid plant extract), and zanthalene (Sichuan pepper extract). Such PPARs are further described in U.S. Patent No. 6,423,325, the disclosure of which is incorporated herein by reference.

[0149] In a preferred embodiment, the selected PPAR is 12-hydroxystearic acid, stearic acid, or a mixture thereof. When used, the PPAR may comprise 0.01 to 1.2% by weight, or 0.03 to 0.8% by weight, or 0.04 to 0.5% by weight, or 0.04 to 0.4% by weight of the layered detergent composition.

[0150] In another embodiment of the invention, the washing composition of the invention comprises C 14-16 A skin-prolipid revitalizing mixture of fatty acids (preferably palmitic acid), glycerin, and PPARs (such as 12-hydroxystearic acid, phellandrene, conjugated linoleic acid, stearic acid, or mixtures thereof). When used, the total weight percentage of the skin-prolipid revitalizing mixture in the wash composition is 0.1 to 12%, or 0.1 to 10%, or 0.5 to 6.5%, or 0.6 to 2.5%.

[0151] In a generally preferred embodiment of the invention, at least one optional ingredient selected from the following is used in the layered detergent composition: carrageenan, palmitic acid, 12-hydroxystearic acid, 10-hydroxystearic acid, lauric acid, glycolic acid, mandelic acid, caffeine, squalene, farnesol, neem oil, ceramide (N-acylsphingosine), nicotinamide, retinyl propionate, vitamin E (including tocopherol acetate, tocopherol linoleate, tocopherol oleate, and tocopherol nicotinate), and vitamin C (including sodium ascorbate phosphate, ascorbate glucoside, and ascorbate palmitate). Palmitate, ascorbate tetraisopalmitate, 4-ethylresorcinol, 4-hexylresorcinol, salicylic acid, terpineol, thymol, peptidylamine, benzalkonium chloride, benzyl chloride, hyaluronic acid, hydrolyzed hyaluronic acid, collagen, panthenol, clomiphene, B1-thiamine, B2-riboflavin, B5-pantothenic acid, B6-pyroxidone, B7-biotin, B9, folic acid, pentavitin, magnolia bark extract, ginger extract, tetrahydroxypropyl ethylenediamine, and mixtures thereof. If used, and similarly, the oil-soluble components are present in a maximum of 2% by weight of the layered detergent composition, wherein, optionally, the water-soluble components may constitute a maximum of 15% by weight of the layered detergent composition.

[0152] In preparing the layered washing composition of the present invention, the desired components can be mixed using conventional equipment under moderate shear and atmospheric conditions, at a temperature range of 30 to 85°C, whereby shearing continues until a homogeneous product is recovered. As previously mentioned, blocking agents with droplet sizes less than 1 micrometer are preferably provided as components of emulsions having submicron droplets (i.e., nanoemulsions).

[0153] When using the washing composition of the present invention, a surface (such as skin) comes into contact with water and the layered washing composition (in no particular order). Shearing is then applied subsequently or simultaneously to produce excellent foaming, followed by rinsing the foamed composition with water. Surprisingly, and when the surface being washed is skin, consumers experience a clean wash where the skin does not feel sticky and experiences excellent moisturizing sensory properties. During washing, the ratio of composition to water is typically 1:2 to 2:1, or 1:1.5 to 1.5:1, or 1.1 to 1, or 1 to 1.1, or 1:1. The water used is typically at about 5 to 55°C, or 7 to 50°C, or 12 to 50°C.

[0154] Packaging for layered detergent compositions is generally unrestricted, as long as the composition can be dispensed. In embodiments of the invention, the detergent compositions are sold in pouches, bottles (glass, metal, or plastic), wide-mouth flasks, tubes, containers or cans with pumpable actuators. Packaging is preferably refillable, biodegradable, and / or made from recycled materials including post-consumer resins. Other packaging commonly desired includes bottles known as paper bottles, which typically contain at least 85% by weight paper.

[0155] Examples are provided to illustrate the invention. They are not intended to limit the scope of the claims.

[0156] The layered detergent compositions were prepared by mixing the ingredients as defined in the table. Water was added to all compositions to reach equilibrium. The pH of the layered detergent compositions was in the range of 6.2 to 6.9, and the viscosity was measured using a Discovery HR-2 rheometer as described. The oil and aqueous phases were prepared by mixing at atmospheric pressure and heating to 65 to 75°C, achieved with moderate shear. The resulting phase was also mixed under these conditions, followed by the addition of all ingredients. Mixing was stopped when a homogeneous detergent composition was produced. The first blocking agent was a mixture of soybean oil and hydrogenated soybean oil in a 2:3 ratio. The second blocking agent was provided as submicron droplets (25 to 950 nm, primarily between 10 and 500 nm) in an aqueous continuous emulsion. SLI was sodium lauroyl hydroxyethyl sulfonate, and SMLT was sodium methyl lauroyl taurate. All formulations contained 0 to 1.25% by weight of fragrance. The figures provided are based on the total weight of the layered detergent compositions and the components as active substances. A total height of liquid and foam of 57.5 mm or greater was considered excellent by the panel members. Mixing or stirring in the analyzer did not exceed 5 minutes. The starch used was sodium hydroxypropyl starch phosphate. The composition prepared according to the invention was stored at 45°C for 3 months. After visual evaluation, the viscosity remained consistent, and no precipitation or flocculation was observed, thus confirming that the composition according to the invention is very stable.

[0157] Example I: Layered detergent compositions (samples 1-8) were prepared using the ingredients identified in Table I.

[0158] Table I

[0159] i- Guar hydroxypropyltrimethylammonium chloride ii- Polyquaternium-67 iii- Samples 3 and 4 (not according to the invention), cocamidopropyl betaine, fatty acid-derived and non-triglyceride-derived, not containing C according to the invention 8-10 Hydrophobic chain IV-12-hydroxystearic acid Samples 1-8, foam evaluation After preparing the samples identified in Table I, two inclusion levels for each detergent composition were evaluated using a standard Kruss Dynamix foam analyzer, assessing 1 ml and 5 ml levels. The analyzer was used in accordance with the provided manual (model DFA100). Water was added until the diluted volume was 45 ml. The water used was from a tap and added at approximately 37°C to optimally simulate shower conditions. The sample was agitated with 2 seconds of shaking for 3 minutes, and foam generation was recorded by imaging with a closed camera. The total volume was measured by light transmission through the sample to record the liquid height. The total height obtained after 30 seconds of shaking was taken as the average volume of the two readings for each detergent composition at the two inclusion levels.

[0160] Total liquid height: Table Ib

[0161] Related to foam volume The comparison formulation is the commercially available Olay® Ultra Moisture Shea Butter, B3 Complex BodyWash, which contains over 9% by weight of petroleum-based petrolatum and over 7% by weight of sulfate-based surfactant, sodium tridecanoate polyether sulfate.

[0162] The data in Table Ib unexpectedly demonstrate that the compositions prepared according to the present invention exhibit excellent foam volume, even when formulated without sulfate-based surfactants. Samples 3 and 4 provide poor moisturizing properties and / or foam volume characteristics, as they are formulated with zwitterionic surfactants outside the scope of the present invention. Samples 5-7, containing more than 1.5% by weight of polyquaternium-67 as a thickener, also result in poor foam volume and moisturizing properties.

[0163] In addition to the unexpectedly excellent foam volume confirmed by the data, the panel members were asked to wash with the compositions according to the invention and comparative products over a 7-day period. The panel members concluded that, compared to commercially available comparative products that foamed poorly and contained more than 9% by weight of occlusive agents, such compositions of the invention resulted in at least the same or significantly better moisturizing properties (i.e., a feeling of hydration and moisture coverage) on their skin. In particular, the panel members concluded that their skin remained feeling hydrated after washing with the compositions according to the invention. In summary, the panel members concluded that the compositions prepared according to the invention gave their skin a lasting feeling of hydration while foaming exceptionally well. The panel members also unexpectedly concluded that, despite containing significantly more occlusive agents in the comparative products, the moisturizing properties were generally significantly better than those perceived after washing with the comparative products. Furthermore, it was unexpectedly found that washing compositions (samples 3 and 4) prepared with zwitterionic surfactants that did not have the hydrophobic chains according to the invention resulted in poorer sensory moisturizing properties, that is, at least not comparable to the comparative products summarized by the panel members. The panel members also concluded that, compared to the comparative product, the composition prepared according to the invention surprisingly produced a more desirable foam volume and a more desirable creamy foam when poufed in the hand. For Sample 2, a separate panel was conducted, and all panel members reached the same conclusion that Sample 2 exhibited superior moisturizing sensory and foaming properties compared to those achieved after washing with the comparative formulation. Regarding Samples 1 and 2, the panel members concluded that the formulation foamed significantly better than the comparative product and provided better moisturizing properties. For Sample 8, the panel members concluded that the formulation foamed significantly better than the comparative product and provided at least as good moisturizing properties as the comparative product.

[0164] Example II involves a panel of trained experts evaluating the following commercially available products for use with the layered detergent composition according to the invention.

[0165] CeraVe® Hydrating Body Wash contains cocamidopropyl betaine, sodium cocoyl glycinate, sodium cocoyl glycinate, sodium cocoyl hydroxyethyl sulfonate, and sodium methyl cocoyl taurate.

[0166] Cetaphil® Moisturizing Relief Body Wash contains cocamidopropyl betaine, sodium lauroyl hydroxyethyl sulfonate, hydroxypropyl starch phosphate, sodium chloride, lauric acid, sodium lauroyl glycinate, soybean oil, and hydrogenated soybean oil.

[0167] NativeCoconut and Vanilla Body Wash contains cocamidopropyl betaine, sodium lauroyl sarcosinate, and sodium cocoyl hydroxyethyl sulfonate.

[0168] Olay® Ultra Moisture Shea Butter contains petrolatum, sodium tridecyl ether sulfate, sodium chloride, cocamidopropyl betaine, tridecyl ether-3, nicotinamide, shea butter, and guar hydroxypropyltrimethylammonium chloride.

[0169] All team members washed the product under normal washing conditions (by hand and skin, tap water at 37°C) and unanimously concluded that the layered washing composition according to the invention is superior in terms of foam volume and foaming speed.

Claims

1. A layered detergent composition comprising: a) an anionic surfactant comprising 2 to 6.75% by weight, preferably 2.2 to 5.5% by weight, and most preferably 2.5 to 5% by weight, of an acylhydroxyethyl sulfonate based on the total weight of the detergent composition, and 3 to 8% by weight, preferably 3.2 to 7.75% by weight, and most preferably 3.25 to 7.5% by weight, of an acyl taurate based on the total weight of the detergent composition; b) an amphoteric surfactant comprising 3 to 7.5% by weight, preferably 3.5 to 7% by weight, and most preferably 3.75 to 6.75% by weight, of a zwitterionic surfactant based on the total weight of the detergent composition; c) a thickener comprising 1.75 to 6% by weight, preferably 1.95 to 5.5% by weight, and most preferably 2.25 to 5.5% by weight, of a thickener, wherein: i) The weight ratio of acylhydroxyethyl sulfonate to acyl taurate is 1:0.8 to 1:2.5, and preferably 1:1 to 1:2.25 or 1:1.1 to 1:2; ii) the layered detergent composition contains less than 0.8% by weight of phthalates, dioxanes, parabens, hydantoin, and isothiazolinones; iii) the total surfactant in the layered detergent composition does not exceed 22.25% by weight of the detergent composition; iv) based on the total weight of the zwitterionic surfactant, 2.5% to 35% by weight of the total zwitterionic surfactant contains C8 to C9 ... 10 v) The layered detergent composition has a pH of 5.75 to 8.25, preferably 5.9 to 8, and most preferably 6 to 7.5; and vi) The layered detergent composition contains 0.0 to 0.75% by weight of a sulfate-based surfactant, and a preservative, a fragrance, or both; wherein the detergent composition further contains a blocking agent, and less than 8.25% by weight of total blocking agent based on the total weight of the detergent composition, wherein the blocking agent comprises a first blocking agent with a droplet size of 1 to 250 micrometers, preferably 1 to 100 micrometers, and most preferably 1 to 50 micrometers, and a second blocking agent with a droplet size of 25 to 950 nm, preferably 40 to 800 nm, and most preferably 50 to 750 nm, and further wherein the first blocking agent and the second blocking agent are composed differently.

2. The layered detergent composition according to claim 1, wherein the first sealing agent comprises soybean oil and hydrogenated soybean oil, and the second sealing agent comprises 55 to 85% by weight fully hydrogenated castor oil and 15 to 45% by weight of C 8-22 Branched or straight-chain fatty acids.

3. The layered detergent composition according to claim 2, wherein, in addition to castor oil, the second sealing agent further comprises 5 to 15% by weight of hydrogenated natural oil, said natural oil comprising canola oil, avocado seed oil, pumpkin seed oil, rapeseed oil, coconut oil, corn oil, cottonseed oil, olive oil, palm oil, peanut oil, walnut oil, safflower oil, sesame oil, soybean oil, sunflower oil, flaxseed oil, palm kernel oil, tung oil, jatropha oil, mustard oil, flaxseed oil, iris oil, hemp seed oil, seaweed oil, jojoba oil, lard, beef tallow, poultry fat, yellow fat, fish oil, or mixtures thereof.

4. The layered washing composition according to any one of the preceding claims, wherein the composition comprises less than 8% by weight, and most preferably 2.8 to 8% by weight, or 3 to 7.5% by weight, or 3.5 to 7% by weight, or 4 to 7% by weight, or 4.25 to 6.5% by weight, or 4.5 to 6% by weight, or 4.5 to 5.5% by weight of total sealing agent.

5. The layered washing composition according to any one of the preceding claims, wherein, based on the total weight of the washing composition, the washing composition comprises 0.9 to 8% by weight, preferably 1.0 to 7.5% by weight, and most preferably 1.5 to 6.0% by weight of the first sealing agent, and 0.08 to 4.2% by weight, preferably 0.1 to 4% by weight, and more preferably 0.1 to 3.35% by weight of the second sealing agent.

6. The layered detergent composition according to any one of the preceding claims, wherein the amount of the first sealing agent in the layered detergent composition is 2.2 to 30 times, more preferably 7 to 26 times, and most preferably 12 to 25 times higher by weight than the amount of the second sealing agent in the layered detergent composition.

7. The layered washing composition according to any one of the preceding claims, wherein, based on the total weight of the sealing agents, no more than 30% of the components in one sealing agent are the same as the components in the other sealing agent used.

8. The layered detergent composition according to any one of the preceding claims, wherein the detergent composition further comprises caffeine, mandelic acid, peptide omega-3, or a mixture thereof.

9. The layered detergent composition according to any one of the preceding claims, wherein the detergent composition comprises less than 35 ppm of 1,4-dioxane and less than 3.25% by weight, preferably less than 3% by weight, and most preferably less than 2.5% by weight of an electrolyte.

10. The layered washing composition according to any one of the preceding claims, wherein the composition further comprises a peroxisome proliferator-activated receptor ligand.

11. The layered detergent composition according to any one of the preceding claims, wherein the composition further comprises C 14-16 Fatty acids, preferably palmitic acid, glycerol and 12-hydroxystearic acid, phellic acid, conjugated linoleic acid, stearic acid or mixtures thereof.

12. The layered washing composition according to claims 2-12, wherein the total sealant does not contain any petroleum-derived sealant, and the sealants are not identical.

13. The layered detergent composition according to any one of the preceding claims, wherein the zwitterionic surfactant comprises C6 to C6. 20 And preferably C6 to C 18 And the optimal selection C8 to C 18 The hydrophobic chain, wherein 2.5% to 35% by weight of the total weight of the zwitterionic surfactant, preferably 3% to 32%, and most preferably 3.5% to 30%, or 4% to 28%, or 5% to 20%, or 6% to 18%, or 8% to 15% is C8 to C9. 10 Hydrophobic chains, and the C8 chain with C 10 The amphoteric surfactant is present in a weight ratio of 1:12 to 12:1, 1:7.5 to 7.5:1, 1:5 to 5:1, 1:2.5 to 2.5:1, 1:1.5 to 1.5:1, 1:1.25 to 1.25:1, 1:1.15 to 1.15:1, or 1:1, and further wherein, based on the total weight of the amphoteric surfactant, the amphoteric surfactant comprises 38 to 55% by weight, preferably 40 to 50% by weight, and most preferably 42 to 48% by weight or 42 to 46% by weight of C. 12 Hydrophobic chain.

14. A method for washing a surface, comprising the steps of contacting the surface with a washing composition according to any one of the preceding claims, applying shear and water to generate foam, and rinsing the surface with water.

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