Self-foaming cleaning composition

Abstract

A self-foaming cleaning composition comprising from 2.5 to 15% by weight of a surfactant based on the total weight of the self-foaming cleaning composition wherein the surfactant comprises an anionic surfactant and a zwitterionic surfactant; a humectant; and 0.01 to 1.0 wt% of a nutritional agent based on the total weight of the self-foaming cleansing composition.

Description

Technical Field

[0001] A self-foaming cleaning composition is disclosed herein. The self-foaming cleaning composition comprises a surfactant, a moisturizer, a nutrient and a chelating agent. Background Art

[0002] Personal cleansing compositions are popular because of their ability to remove dirt, grease and debris from the skin or hair of consumers. Typical surfactant-based cleansers are formulated to provide specific cleaning power, feel, mildness and foaming capacity. Each criterion is of great significance to the attractiveness of cleaning products. For example, foaming capacity is important as a factor determining product efficacy and reach. In addition, personal cleansers should gently clean the skin or hair of the user without causing undesirable irritation or drying the skin. Other ingredients can be added to surfactant-based compositions to help the cleaning process.

[0003] Liquid cleaning compositions typically contain benefit agents, also referred to as actives. Such benefit agents or actives are typically included in liquid cleaning compositions for the purpose of providing a benefit. For example, a moisturizer may be included in a cleaning composition such as a hand soap composition or a body wash composition to provide a moisturizing effect.

[0004] However, it can be difficult to obtain the expected benefits from actives or benefit agents in cleaning compositions for a variety of reasons. One reason is that deposition of actives on the surface of the surface to be cleaned or washed is difficult because the cleaning action generally includes a step of removing the composition from the surface (e.g., washing it off), typically within seconds to minutes after application. Therefore, depositing actives on the surface within a limited time can be very challenging.

[0005] There always exists a need to provide skin cleansing formulations that have desirable cleansing efficacy without being harsh, causing problems to the skin and having the ability to deliver benefit agents such as moisturizers, antimicrobial actives and the like.

[0006] Environmentally friendly cleaning compositions are always needed. Therefore, it may be further desirable to provide biodegradable cleaning compositions.

[0007] CN113811357A discloses the use of sugars or sugar alcohols for protecting the skin from harmful bacteria and discloses a composition comprising a sugar alcohol (eg, glycerol) used as a prebiotic to produce metabolites (eg, lactic acid) by skin commensal bacteria.

[0008] WO2021 / 148428A1 discloses an isotropic concentrate composition that is easily hydrated and converted into an end-use cleaning composition. The end-use cleaning composition from the concentrate composition is suitable for topical application and hand washing. The concentrate contains a level of fragrance oil and emulsifier that unexpectedly produces a concentrate composition and an end-use composition that does not contain ingredient precipitates that interfere with the appearance and use of the composition.

[0009] CN113476339A discloses a formula of a self-foaming skin nourishing cleansing gel with dual functions of makeup removal and cleaning. The composition contains water, disodium EDTA, betaine, allantoin, propylene glycol, hydroxyethyl cellulose, sodium laureth sulfate, sodium laureth sulfate and cocamide MEA, acrylate / stearyl alcohol polyether-20 methacrylate copolymer, cocamidopropyl betaine and sodium chloride, as well as other ingredients. Summary of the invention

[0010]

[0011] In various aspects, self-foaming cleaning compositions are disclosed.

[0011] The self-foaming cleaning composition comprises 2.5 to 15 wt % of a surfactant based on the total weight of the self-foaming cleaning composition, wherein the surfactant comprises an anionic surfactant and a zwitterionic surfactant; a humectant; and 0.01 to 1.0 wt % of a nutrient based on the total weight of the self-foaming cleaning composition.

[0012] These and other features and characteristics are described in more detail below. DETAILED DESCRIPTION

[0013] A self-foaming cleaning composition is disclosed herein. The self-foaming cleaning composition comprises anionic surfactants and zwitterionic surfactants, moisturizers and nutrients. It was unexpectedly found that this self-foaming cleaning composition can deposit nutrients on the user's skin, thereby giving the user's skin a moisturizing effect, even if the cleaning composition is rinsed off from the user's skin after a short time (e.g., 10 seconds to 5 minutes). In addition, the cleaning composition can be made sulfate-free. Sulfate-free as referred to herein means that the composition does not contain sulfate-based surfactants, such as sodium laureth sulfate (SLS) or sodium alkyl polyether sulfate (SPES). Sulfate-free compositions are ideal because they are more environmentally friendly, gentle, and have an ideal sensory experience. The self-foaming cleaning composition can also be prepared using biodegradable ingredients so that the entire composition is biodegradable. The self-foaming composition can be purely plant-based so that the composition is completely free of any animal products or animal by-products.

[0014] The self-foaming cleaning composition may include a surfactant in an amount of 2.5 to 15 wt % based on the total weight of the self-foaming cleaning composition, for example, 2.5 to 10 wt % based on the total weight of the self-foaming cleaning composition, for example, 3.0 to 8 wt % based on the total weight of the self-foaming cleaning composition, for example, 3.5 to 7.5 wt % based on the total weight of the self-foaming cleaning composition, including any and all ranges and values ​​covered therein. The surfactant may include an anionic surfactant, an amphoteric surfactant, a zwitterionic surfactant, a nonionic surfactant, a cationic surfactant, or a combination thereof. In one embodiment, the surfactant may include an anionic surfactant and a zwitterionic surfactant. In one embodiment, the surfactant is an anionic surfactant and a zwitterionic surfactant.

[0015] The surfactant present in the self-foaming cleaning composition may include an anionic surfactant and an amphoteric surfactant present in a ratio of 0.5:2, e.g., 0.75 to 1.5, e.g., 0.8 to 1, e.g., 0.85 to 0.95. In one embodiment, the ratio of anionic surfactant to amphoteric surfactant is 0.5:2, preferably 0.75 to 1.5, more preferably 0.8 to 1, even more preferably 0.85 to 0.95.

[0016] The anionic surfactant may include aliphatic sulfonates such as primary alkanes (e.g., C 8 -C 22 ) sulfonates, primary alkanes (e.g., C 8 -C 22 ) disulfonate, C 8 -C 22 Olefin sulfonate, C 8 -C 22 Hydroxyalkane sulfonates or alkyl glyceryl ether sulfonates (AGS); or aromatic sulfonates such as alkyl benzene sulfonates.

[0017] The anionic surfactant may also be an alkyl sulfosuccinate (including mono-alkyl and di-alkyl, for example, C 6 -C 22 sulfosuccinates); alkyl and acyl taurates (usually methyl taurate), alkyl and acyl sarcosinates, sulfoacetates, C 8 -C 22 Alkyl phosphates and phosphonates, alkyl phosphate esters and alkoxyalkyl phosphate esters, acyl lactylates, C 8 -C 22 Monoalkyl succinates and maleates, sulfoacetates, alkyl glucosides and acyl isethionates, etc.

[0018] The sulfosuccinate may be a monoalkyl sulfosuccinate having the formula:

[0019] R 1 OC(O)CH 2 CH(SO 3 M)CO 2 M;

[0020] And the amide-MEA sulfosuccinate of the formula:

[0021] R 1 CONHCH 2 CH 2 OC(O)CH 2 CH(SO 3 M)CO 2 M

[0022] Where R 1 Range C 8 -C 22 alkyl.

[0023] Sarcosinate is generally represented by the following formula:

[0024] R 2 CON(CH 3 )CH 2 CO 2 M, where R 2 Range C 8 -C 20 alkyl.

[0025] Taurate is generally determined by the following formula:

[0026] R 3 CONR 4 CH 2 CH 2 SO 3 M

[0027] Where R 3 C 8 -C 20 Alkyl, R 4 C 1 -C 4 alkyl.

[0028] M is a solubilizing cation as previously described.

[0029] The self-foaming cleaning compositions disclosed herein may include C 8 -C 18 Acyl isethionates. These esters are prepared by reacting an alkali metal isethionate with mixed aliphatic fatty acids having from 6 to 18 carbon atoms and an iodine value of less than 20. At least 75% of the mixed fatty acids have from 12 to 18 carbon atoms and a maximum of 25% of the mixed fatty acids have from 6 to 10 carbon atoms.

[0030] The acyl isethionate may be an alkoxylated isethionate as described in Ilardi et al., US Patent No. 5,393,466, issued February 28, 1995, entitled "Fatty Acid Esters of Polyalkoxylated isethonic acid"; which is incorporated herein by reference. The general formula of the compound is:

[0031] R 5 C—(O)O—C(X)H—C(Y)H—(OCH 2 —CH 2 ) m —SO 3 M

[0032] Where R 5 is an alkyl group having 8 to 18 carbons, m is an integer from 1 to 4, X and Y are each independently hydrogen or an alkyl group having 1 to 4 carbons and M is a solubilizing cation as described above.

[0033] In one aspect of the self-foaming cleansing composition, the anionic surfactant used is sodium lauroyl glycinate, sodium cocoyl glycinate, sodium lauroyl glutamate, sodium cocoyl glutamate, sodium lauroyl isethionate, sodium cocoyl isethionate, alpha-olefin sulfonate (AOS), or a combination thereof. Such anionic surfactants are commercially available from suppliers such as Galaxy Surfactants, Clariant, Sino Lion, Stepan Company, and Innospec. In one embodiment, the self-foaming cleansing composition is substantially free of sulfates. As used herein, "substantially free" or "substantially free" refers to an amount less than or equal to 1% by weight, e.g., less than or equal to 0.5% by weight, e.g., less than or equal to 0.25% by weight, e.g., less than or equal to 0.1% by weight, e.g., less than or equal to 0.01% by weight, e.g., 0% by weight.

[0034] Optionally, amphoteric surfactants may be included in the cleaning compositions disclosed herein. Amphoteric surfactants (which may be zwitterionic depending on pH) include sodium acylamphoacetate, sodium acylamphopropionate, disodium acylamphodiacetate, and disodium acylamphodipropionate, wherein the acyl group (i.e., alkanoyl) may contain C 7 -C 18 Alkyl moiety. Illustrative examples of amphoteric surfactants include sodium lauroamphoacetate, sodium cocoamphoacetate, or combinations thereof.

[0035] Regarding the zwitterionic surfactants used in the cleaning compositions of the present invention, such surfactants include at least one acid group. Such acid groups can be carboxylic acid groups or sulfonic acid groups. They typically include quaternary nitrogen and thus can be quaternary amino acids. They generally should include alkyl or alkenyl groups of 7 to 18 carbon atoms and typically conform to the overall structural formula:

[0036] R 6 —[—C(O)—NH(CH 2 ) q —] r —N + (R 7 )(R 8 )-A—B

[0037] Where R 6 is an alkyl or alkenyl group having 7 to 18 carbon atoms; R 7 and R 8 are each independently an alkyl group of 1 to 3 carbon atoms, a hydroxyalkyl group or a carboxyalkyl group; q is 2 to 4; r is 0 to 1; A is an alkylene group of 1 to 3 carbon atoms optionally substituted by a hydroxyl group, and B is -CO 2 —OR—SO 3 —.

[0038] Desirable zwitterionic surfactants for use in the cleaning compositions disclosed herein and within the scope of the above general formula include simple betaines of the formula:

[0039] R 6 —N + (R 7 )(R 8 )-CH 2 CO 2 -

[0040] And the following amide betaine:

[0041] R 6 —CONH(CH 2 ) t —N + (R 7 )(R 8 )-CH 2 CO 2 -

[0042] Where t is 2 or 3.

[0043] In both formulas, R 6 , R 7 and R 8 is as defined above. 6 It may be particularly C derived from coconut oil.12 and C 14 mixture of alkyl groups such that at least half, preferably at least three quarters, of the R 6 The group has 10 to 14 carbon atoms. 7 and R 8 Preferred is methyl.

[0044] A further possibility is that the zwitterionic surfactant is a sulfobetaine of the formula:

[0045] R 6 —N + (R 7 )(R 8 )-(CH 2 ) 3 SO 3 - or

[0046] R 6 —CONH(CH 2 ) u —N + (R 7 )(R 8 )-(CH 2 ) 3 SO 3 -

[0047] Where u is 2 or 3, or where—(CH 2 ) 3 SO 3 - Replace with -CH 2 C(OH)(H)CH 2 SO 3 - Variations of these.

[0048] In these formulas, R 6 , R 7 and R 8 is as defined before.

[0049] Illustrative examples of zwitterionic surfactants that are desirable for use include betaines such as lauryl betaine, betaine citrate, coconut dimethyl carboxymethyl betaine, cocamidopropyl betaine, coconut alkyl dimethyl betaine and lauryl amidopropyl betaine. Additional zwitterionic surfactants suitable for use include cocamidopropyl sultaine, for example, cocamidopropyl hydroxysultaine. Preferred zwitterionic surfactants include lauryl betaine, betaine citrate, sodium hydroxymethyl glycinate, (carboxymethyl) dimethyl-3-[(1-oxododecyl) amino] propyl ammonium hydroxide, coconut alkyl dimethyl betaine, (carboxymethyl) dimethyl oleyl ammonium hydroxide, cocamidopropyl betaine, (carboxymethyl) dimethyl oleyl ammonium hydroxide, cocamidopropyl betaine, (carboxymethyl) dimethyl (octadecyl) ammonium, cocamidopropyl hydroxysultaine or a combination thereof. The most preferred zwitterionic surfactants include cocodimethyl carboxymethyl betaine, cocamidopropyl betaine, lauryl amidopropyl betaine, cocamidopropyl hydroxysultaine, lauryl hydroxysultaine, cocamide monoethanolamide or a combination thereof. Such surfactants are commercially available from suppliers such as Stepan Company, Solvay, Evonik, etc., and mixtures of the above surfactants are also within the scope of the cleaning compositions disclosed herein.

[0050] Nonionic surfactants can optionally be used in the cleaning composition. When used, the nonionic surfactant is typically used at levels as low as 0.5%, 1%, 1.5%, or 2%, and at levels as high as 6%, 8%, 10%, or 12%, encompassing any and all ranges and values ​​contained therein. Useful nonionic surfactants include, in particular, the reaction products of compounds having a hydrophobic group and an active hydrogen atom (e.g., an aliphatic alcohol, an acid, an amide, or an alkylphenol) and an alkylene oxide (in particular, ethylene oxide, alone or with propylene oxide). Specific nonionic surfactant compounds are alkyl (C 6 -C 22 )phenol, ethylene oxide condensation product, aliphatic (C 8 -C 18 ) condensation products of straight or branched primary or secondary alcohols with ethylene oxide, and products produced by the condensation of ethylene oxide with the reaction products of propylene oxide and ethylenediamine. Other nonionic surfactants include long chain tertiary amine oxides, long chain tertiary phosphine oxides, dialkyl sulfoxides, etc.

[0051] In one aspect, the nonionic surfactant may include a fatty acid / alcohol ethoxylate having the following structure: a) HOCH 2 (CH 2 ) s (CH 2 CH 2O) c H or b)HOOC(CH 2 ) v (CH 2 CH 2 O) d H; wherein 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 one aspect, s and v can each independently be 6 to 18; and c and d can each independently be 1 to 30. Other choices of nonionic surfactants include those having the formula HOOC(CH 2 ) i —CH=CH—(CH 2 ) k (CH 2 CH 2 O) z H, wherein i, k are each independently 5 to 15; and z is 5 to 50. In another aspect, i and k are each independently 6 to 12; and z is 15 to 35.

[0052] Nonionic surfactants may also include sugar amides, such as polysaccharide amides. Specifically, the surfactant may be a lactobionamide described in US Patent No. 5,389,279, entitled "Compositions Comprising Nonionic Glycolipid Surfactants" issued to Au et al. on February 14, 1995; incorporated herein by reference, or may be a sugar amide described in US Patent No. 5,009,814, entitled "Use of N-Poly Hydroxyalkyl Fatty Acid Amides as Thickening Agents for Liquid Aqueous Surfactant Systems" issued to Kelkenberg on April 23, 1991; incorporated herein by reference.

[0053] Illustrative examples of nonionic surfactants that may optionally be used in the self-foaming cleansing compositions disclosed herein include, but are not limited to, polyglucosides, cetyl alcohol, decyl glucoside, lauryl glucoside, octaethylene glycol monododecyl ether, n-octyl β-d-thiopyranoglucoside, octyl glucoside, oleyl alcohol, polysorbate, sorbitan, stearyl alcohol, or combinations thereof.

[0054] In one aspect, cationic surfactants may optionally be used in the self-foaming cleansing compositions of the present application.

[0055] One class of cationic surfactants includes heterocyclic ammonium salts such as cetyl or stearyl pyridinium chloride, alkylamidoethyl pyrrolinium methyl sulfate and lapidium chloride.

[0056] Tetraalkylammonium salts are another useful class of cationic surfactants for use. Examples include spermaceti or stearyl trimethyl ammonium chloride or bromide; hydrogenated palm or tallow trimethyl ammonium halide; behenyl trimethyl ammonium halide or methyl sulfate; decyl isononyl dimethyl ammonium halide; ditallow (or distearyl) dimethyl ammonium halide and behenyl dimethyl ammonium chloride.

[0057] Other types of cationic surfactants that can be used include various ethoxylated quaternary ammonium and esterquats. Examples include PEG-5 stearyl ammonium lactate (e.g., Genamin KSL manufactured by Clariant), PEG-2 coconut ammonium chloride, PEG-15 hydrogenated tallow ammonium chloride, PEG 15 stearyl ammonium chloride, dipalmitoyl ethyl methyl ammonium chloride, dipalmitoyl hydroxyethyl methyl sulfate, and stearamidopropyl dimethyl lactylate.

[0058] Other useful cationic surfactants also include quaternized hydrolysates of silk protein, wheat protein, and keratin, and it is within the scope of the cleansing compositions to use mixtures of the foregoing cationic surfactants.

[0059] If used, cationic surfactants comprise no more than 1.0 weight percent of the cleaning composition. If used, cationic surfactants typically comprise from 0.01 to 0.7 weight percent of the cleaning composition, more typically from 0.1 to 0.5 weight percent, including any and all ranges and values ​​subsumed therein.

[0060] The self-foaming cleaning composition further comprises a humectant. The humectant may be present in an amount of 0.01 to 85 wt % based on the total weight of the self-foaming cleaning composition, e.g., 5.0 to 75 wt % based on the total weight of the self-foaming cleaning composition, e.g., 7.5 to 50 wt % based on the total weight of the self-foaming cleaning composition, e.g., 10 to 25 wt % based on the total weight of the self-foaming cleaning composition, including any and all ranges and values ​​contained therein.

[0061] Moisturizers can be used to assist in the moisturizing effect of the self-foaming cleaning composition. Moisturizers are generally known as wetting agents that can attract water from the air or deeper into the skin. In other words, moisturizers can absorb moisture into the skin, hair or nails. In general, moisturizers can be materials of polyol types. Typical polyols include glycerol (i.e., glycerol or glycerol), propylene glycol, dipropylene glycol, polypropylene glycol (e.g., PPG-9), polyethylene glycol, sorbitol, hydroxypropyl sorbitol, hexylene glycol, 1,3-butylene glycol, isopentyl glycol, 1,2,6-hexanetriol, ethoxylated glycerol, propoxylated glycerol or a combination thereof. Most preferably, glycerol, propylene glycol, dipropylene glycol or a combination thereof. In one embodiment, the moisturizer can be propylene glycol, butylene glycol, dipropylene glycol, glycerol, triethylene glycol, erythritol, octanediol, hyaluronic acid, polypropylene glycol-7 propyl (proypyl) heptyl ether or a combination thereof. In one embodiment, the moisturizer is glycerol.

[0062] The self-foaming cleansing composition further comprises a nutrient agent. The nutrient agent helps replenish the skin with essential nutrients to help the skin maintain its natural moisture after using the self-foaming cleansing composition.

[0063] The nutrient can be present in an amount of 0.01 to 1.0 wt % based on the total weight of the self-foaming cleaning composition, e.g., 0.05 to 0.75 wt % based on the total weight of the self-foaming cleaning composition, e.g., 0.1 to 0.5 wt % based on the total weight of the self-foaming cleaning composition, e.g., 0.2 to 0.3 wt % based on the total weight of the self-foaming cleaning composition, including any and all ranges and values ​​subsumed therein.

[0064] The nutrient may include a variety of materials, including but not limited to octadecanoic acid, stearyl alcohol, monoricinoleyl glyceryl, mink oil, cetyl alcohol, isopropyl isostearate, stearic acid, isobutyl palmitate, isocetyl stearate, oleyl alcohol, isopropyl laurate, hexyl laurate, decyl oleate, octadecane-2-ol, isocetyl alcohol, eicosanol, behenyl alcohol, cetyl palmitate, silicone oils such as dimethicone, di-n-butyl sebacate, isopropyl myristate, isopropyl palmitate, isopropyl stearate, butyl stearate, polyethylene glycol, triethylene glycol, lanolin, cocoa butter, corn oil, cottonseed oil, olive oil, palm kernel oil, rapeseed oil, safflower seed oil, evening primrose oil, soybean oil, sunflower seed oil, avocado oil, sesame oil, coconut oil, peanut oil, castor oil, acetylated lanolin alcohol, petrolatum, mineral oil, butyl myristate, isostearic acid, palmitic acid, isopropyl linoleate, lauryl lactylate, myristyl lactylate, decyl oleate, myristyl myristate, or a combination thereof.

[0065] Preferably, the nutrient comprises a C12-C22 fatty acid, preferably, the nutrient comprises 10-hydroxystearic acid, 12-hydroxystearic acid, petroselinic acid, conjugated linoleic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid or a combination thereof. More preferably, the nutrient is 10-hydroxystearic acid, 12-hydroxystearic acid, petroselinic acid, conjugated linoleic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid or a combination thereof. Most preferably, the nutrient is 12-hydroxystearic acid.

[0066] The self-foaming cleaning composition may further comprise a chelating agent. Chelation is a type of bonding of ions and molecules to metal ions. Chelating agents help prevent fragrance and color degradation and increase preservative activity.

[0067] The chelating agent can be present in an amount of 0.01 to 1.0 weight percent based on the total weight of the self-foaming cleaning composition, for example, 0.05 to 0.75 weight percent based on the total weight of the self-foaming cleaning composition, for example, 0.075 to 0.5 weight percent based on the total weight of the self-foaming cleaning composition, for example, 0.09 to 0.1 weight percent based on the total weight of the self-foaming cleaning composition, including any and all ranges and values ​​subsumed therein.

[0068] In one embodiment, the chelating agent comprises ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA), pentasodium diethylenetriaminepentaacetate, trisodium N-(hydroxyethyl)-ethylenediaminetriacetate, the acid form of ethylenediaminetetraacetic acid (EDTA), phytic acid, or a combination thereof. In one embodiment, the chelating agent is ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA), pentasodium diethylenetriaminepentaacetate, trisodium N-(hydroxyethyl)-ethylenediaminetriacetate, the acid form of ethylenediaminetetraacetic acid (EDTA), phytic acid, or a combination thereof.

[0069] In one embodiment, the chelating agent comprises sodium gluconate, nitrilotriacetic acid (NTA), ethylenediamine disuccinic acid (EDDS), iminodisuccinic acid (IDS), methylglycine diacetate, methylglycine diacetic acid (MGDA), L-glutamic acid N,N-diacetic acid (GLDA), ethylenediamine-N,N'-diglutaric acid (EDDG), ethylenediamine-N,N'-dimalonic acid (EDDM), 3-hydroxy-2,2-iminodisuccinic acid (HIDS), 2-hydroxyethyliminodiacetic acid (HEIDA), pyridine-2,6-dicarboxylic acid (PDA), sodium citrate or a combination thereof. In one embodiment, when the chelating agent comprises these chelating agents, the self-foaming cleaning composition is biodegradable. Accordingly, the composition comprises preferably less than 0.5 wt%, preferably less than 0.01 wt% EDTA, and most preferably contains no EDTA.

[0070] In one embodiment, the chelating agent is sodium gluconate, nitrilotriacetic acid (NTA), ethylenediamine disuccinic acid (EDDS), iminodisuccinic acid (IDS), methylglycine diacetate, methylglycine diacetic acid (MGDA), L-glutamic acid N,N-diacetic acid (GLDA), ethylenediamine-N,N'-diglutaric acid (EDDG), ethylenediamine-N,N'-dimalonic acid (EDDM), 3-hydroxy-2,2-iminodisuccinic acid (HIDS), 2-hydroxyethyliminodiacetic acid (HEIDA), pyridine-2,6-dicarboxylic acid (PDA), sodium citrate or a combination thereof. In one embodiment, when the chelating agent is these chelating agents, the self-foaming cleaning composition is biodegradable.

[0071] When using biodegradable chelating agents, it may be important to ensure that the composition is thoroughly mixed so that the contents are homogenous, as these chelating agents are generally solid at room temperature compared to non-biodegradable chelating agents, which are generally liquid at room temperature. Room temperature as used herein generally refers to a temperature of about 20°C.

[0072] The self-foaming cleansing composition may further comprise an emulsifier. Emulsifiers having an HLB greater than 8 may be used. Illustrative examples include sorbitan esters such as TWEEN TM 40. TWEEN TM 60. TWEEN TM 80. TWEEN TM 20 (polysorbate 20) or a combination thereof. Typically, the emulsifier used in a water-continuous system comprises 0.3 to 2.5 weight % of the total weight of the self-foaming cleansing composition, including any and all ranges and values ​​subsumed therein.

[0073] The self-foaming cleaning composition may further comprise a pH adjuster. The pH of the concentrated conditioning composition may be from 2 to 9, preferably from 4 to 9, and most preferably from 5 to 6, including any and all ranges and values ​​contained therein. Adjusters may be used to change / buffer the pH. Such pH adjusters include triethylamine, NaOH, KOH, H 2 SO 4 , HCl, C 6 H 8 O 7 (i.e., citric acid), C 3 H 6 O 3 (i.e., lactic acid) or a combination thereof. The pH adjuster is added in an amount to achieve the desired final pH. The pH adjuster may include various alpha-hydroxy acids or a combination thereof. For example, the pH adjuster may include alpha-hydroxy acids of citric acid, glycolic acid, lactic acid, malic acid, and tartaric acid or a combination thereof. The pH value can be measured using commercial instruments such as those available from Thermo Fisher Scientific. The pH adjuster can be present in an amount of 0.1 to 1.0 wt % based on the total weight of the self-foaming cleaning composition, for example, 0.25 to 0.75 wt % based on the total weight of the self-foaming cleaning composition, for example, 0.5 to 0.6 wt % based on the total weight of the concentrated conditioning composition, including any and all ranges and values ​​subsumed therein.

[0074] In order to prevent the growth of potentially harmful microorganisms, it is desirable to incorporate preservatives into self-foaming cleaning compositions. Preservatives are antimicrobial ingredients added to maintain the microbiological safety of the product. They act to inhibit the growth of microorganisms, thereby reducing the degree of microbial contamination. Since personal wash formulations (such as those disclosed herein) contain biodegradable ingredients, they can become unpleasant and unsafe if microbial degradation is not controlled. Microbial growth is dependent on water, so preservatives must be distributed to a certain extent into the aqueous phase of the formulation. Commonly used preservatives can be classified into the following five categories:

[0075] 1) Parabens such as methylparaben, propylparaben and butylparaben and Germaben II are derived from parahydroxybenzoic acid. These materials are economical and effective against fungi and some gram-negative bacteria, but require a second ingredient to control gram-positive bacteria. In emulsion-containing formulations, they also tend to distribute more to the oil phase. They are widely used at levels of 0.01-0.3% by weight and are generally considered safe, despite concerns about possible estrogenic activity and association with cancer.

[0076] 2) Formaldehyde releasers such as Germall Plus, DMDM ​​hydantoin and imidazolidinyl urea or diazolidinyl urea. Such substances are effective against bacteria but provide only weak antifungal activity. They are used at levels of 0.1-0.5% by weight in the pH range 3-8. Low levels of released free formaldehyde ensure inhibition of microorganisms but pose a problem of potential carcinogens.

[0077] 3) Isothiazolinones such as methylchloroisothiazolinone (MCI), methylisothiazolinone (MI) and Kathon. Isothiazolinones offer broad-spectrum efficacy over a wide pH range, but they may cause skin irritation to some consumers. Such materials are used at low levels, on the order of 10 ppms.

[0078] 4) Phenoxyethanol, sold as Optiphen or Optiphen Plus and Neolone PH 100. Phenoxyethanol is generally considered a mild alternative to parabens or formaldehyde donors, but has a narrow spectrum of use against gram-negative bacteria. It is often combined with caprylyl glycol, sorbic acid / potassium sorbate, or EDTA to produce broad-spectrum efficacy. It is suitable for a wide pH range and is generally used at levels of 1% or less. However, there are some concerns that it may be carcinogenic.

[0079] 5) Organic acids such as benzoic acid / sodium benzoate, sorbic acid / potassium sorbate, salicylic acid / sodium salicylate, and levulinic acid or p-methoxybenzoic acid. These acids are limited to use in aqueous applications in the pH range of 2-6. They are generally used at higher levels than some of the above alternatives and have slightly weaker antibacterial efficiency (which can be enhanced by combining with diazolidinyl urea), although they are good against fungi. This class of preservatives is generally considered natural.

[0080] Preservatives used in the cleaning compositions disclosed herein preferably include organic acid based preservatives, preferably sodium benzoate, caprylyl glycol or a combination thereof. Conventional preservatives used include hydantoin derivatives and propionates.

[0081] Other preservatives used are iodopropynyl butylcarbamate, phenoxyethanol, 1,2-octanediol, hydroxyacetophenone, ethylhexylglycerin, hexylene glycol, methylparaben, propylparaben, imidazolidinyl urea, sodium dehydroacetate, dimethyl-dimethyl (DMDM) hydantoin and benzyl alcohol and mixtures thereof. Other preservatives include sodium benzoate, sodium dehydroacetate, chlorphenesin, decanediol, methylchloroisothiazolinone, methylisothiazolinone or a combination thereof. The selection of preservatives should take into account the use of the composition and possible incompatibility between the preservative and other ingredients in the cleaning composition. Also preferred are preservative systems having hydroxyacetophenone alone or in mixtures with other preservatives. Particularly preferred is sodium benzoate.

[0082] The self-foaming cleaning compositions disclosed herein typically contain water in an amount of 20 to 90 wt %, more specifically 50 to 85 wt %, based on the total weight of the self-foaming cleaning composition, including any and all ranges and values ​​subsumed therein. Such water content represents a relatively wide range of compositions, including both concentrated and non-concentrated products, wherein formulations with a water content of 20 to less than 50 wt % water are typical of concentrated products.

[0083] When used, self-foaming cleaning compositions are typically diluted with water. The degree of dilution depends on the specific product form. Less common, but also contemplated for use with the present invention, are formulations that foam without dilution, typically by using a pump dispenser in which the product is passed through a screen in the pump.

[0084] The cleaning composition may further comprise various additives, including but not limited to colorants, emollients, anti-dandruff agents, skin feel agents, hair dyes, styling polymers, silicone oils, cationic polymers or combinations thereof. Each of these substances is present in an amount of 0.03 to 5 wt %, preferably 0.1 and 3 wt %, of the total weight of the self-foaming cleaning composition, including any and all ranges and values ​​contained therein. For example, when present, the colorant can be present in an amount of 5 parts per million (ppm) to 15 ppm, for example, about 15 ppm.

[0085] Additional optional ingredients that may be present in the self-foaming cleansing composition are, for example: fragrances; colorants; opacifiers and pearlescent agents such as zinc stearate, magnesium stearate, TiO 2 , ethylene glycol monostearate (EGMS), ethylene glycol distearate (EGDS) or Lytron 621 (styrene / acrylate copolymer), etc.; antioxidants, for example, butylated hydroxytoluene (BHT), etc.; stabilizers; foam boosters, for example, coconut oil acyl monoethanolamide or diethanolamide; ionized salts such as, for example, sodium chloride and sodium sulfate, and other ingredients such as those commonly used in liquid soap formulations. The total amount of such additional optional ingredients is generally 0 to 10% by weight, more particularly 0.1 to 5% by weight, based on the total weight of the self-foaming cleaning composition.

[0086] The composition generally comprises one or more skin benefit agents. The term "skin benefit agent" is defined as a substance that softens or improves the elasticity, appearance and youthfulness of the skin (stratum corneum) by increasing the water content, adding or replacing lipids and other skin nutrients or both, and keeps it soft by delaying the decline of its water content. Suitable skin benefit agents include emollients, which include, for example, hydrophobic emollients, hydrophilic emollients or blends thereof.

[0087] Useful skin benefit agents include the following:

[0088] (a) Silicone oils and their modifications such as linear and cyclic polydimethylsiloxanes; amino, alkyl, alkylaryl and aryl silicone oils;

[0089] (b) fats and oils, including natural fats and oils such as jojoba oil, soybean oil, sunflower oil, rice bran oil, avocado oil, almond oil, olive oil, sesame oil, peach kernel oil, castor oil, coconut oil and mink oil; cocoa butter; tallow and lard; hardened oils obtained by hydrogenating the above oils; and synthetic mono-, di- and triglycerides, such as glyceryl myristate and glyceryl 2-ethylhexanoate;

[0090] (c) waxes such as carnauba wax, spermaceti, beeswax, lanolin and their derivatives;

[0091] (d) hydrophobic and hydrophilic plant extracts;

[0092] (e) hydrocarbons such as liquid paraffin, petrolatum, microcrystalline wax, ozokerite, squalene, pristan and mineral oil;

[0093] (f) higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid, lanolinic acid, isostearic acid, arachidonic acid and polyunsaturated fatty acids (PUFA);

[0094] (g) higher alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, behenyl alcohol, cholesterol and 2-hexadecanol;

[0095] (h) esters such as cetyl hexadecanoate, myristyl lactylate, cetyl lactylate, isopropyl myristate, myristyl myristate, isopropyl palmitate, diisopropyl adipate, butyl stearate, decyl oleate, cholesterol isostearate, glyceryl monostearate, glyceryl monolaurate, glyceryl distearate, glyceryl tristearate, alkyl lactylates, alkyl citrates, and alkyl tartrates;

[0096] (i) Essential oils and their extracts, such as peppermint, jasmine, camphor, cedar, bitter orange peel, willow leaf (ryu), turpentine, cinnamon, bergamot, mandarin, calamus, pine, sugar cane, chamomile, yarrow, liquorice, lavender, laurel, clove, cypress, eucalyptus, lemon, starflower, thyme, peppermint, rose, sage, sesame, ginger, basil, juniper, lemongrass, rosemary, rosewood, avocado, grape, grape seed, myrrh, cucumber, watercress, calendula , elderflower, geranium, linden flower, amaranth, seaweed, ginkgo, ginseng, carrot, guarana, tea tree, jojoba, comfrey, oat, cocoa, orange blossom, vanilla, green tea, peppermint, aloe, menthol, eucalyptol, eugenol, citral, citronelle, borneol, linalool, geraniol, evening primrose, camphor, thymol, spirantol, penene, limonene, and terpenoid oils;

[0097] (j) polyhydric alcohols, for example, glycerol, sorbitol, propylene glycol, etc.; and polyols such as polyethylene glycol, examples of which are: Polyox WSR-205 PEG 14M, Polyox WSR-N-60K PEG 45M or Polyox WSR-N-750 and PEG 7M;

[0098] (k) lipids such as cholesterol, ceramides, sucrose esters and pseudoceramides as described in European Patent Specification No. 556,957;

[0099] (l) vitamins, minerals and skin nutrients such as milk, vitamin A, vitamin E and vitamin K; vitamin alkyl esters, including vitamin C alkyl esters; magnesium, calcium, copper, zinc and other metal components;

[0100] (m) sunscreens such as octyl methoxycinnamate (Parsol MCX) and butyl methoxybenzoylmethane (Parsol 1789);

[0101] (n) phospholipids; and

[0102] (o) Anti-aging compounds such as alpha-hydroxy acids and beta-hydroxy acids.

[0103] Skin benefit agents typically comprise up to 30% by weight of the self-foaming cleansing composition, preferably levels of 0 to 25% by weight, more particularly 0 to 20% by weight, being typical levels for these skin benefit agents in many of the formulations. Preferred skin benefit agents include fatty acids, hydrocarbons, polyhydric alcohols, polyols, and mixtures thereof, wherein in one or more embodiments, emollients comprising at least one C12 to C18 fatty acid, petrolatum, glycerin, sorbitol, and / or propylene glycol are of particular interest.

[0104] Other optional ingredients include water-soluble / water-dispersible polymers, which may be cationic, anionic, amphoteric or nonionic types, with molecular weights above 100,000 Daltons. They are known to increase the viscosity and stability of liquid personal cleansing formulations, improve the sensory properties of the skin during and after use, and enhance foam creaminess and foam stability. When present, the total amount of such polymers generally present in the self-foaming cleansing composition is from 0.1 to 10 weight percent based on the total weight of the self-foaming cleansing composition.

[0105] Examples of water-soluble or dispersible polymers include carbohydrate gums such as cellulose gum, microcrystalline cellulose, cellulose gel, hydroxyethyl cellulose, hydroxypropyl cellulose, sodium carboxymethyl cellulose, methyl cellulose, ethyl cellulose, guar gum, karaya gum, tragacanth gum, gum arabic, gum acacia, agar, xanthan gum, and mixtures thereof; modified and unmodified starch granules and pregelatinized cold water soluble starch; emulsion polymers such as 28. 22 or Aqua SF1; cationic polymers, such as modified polysaccharides, including those sold under the trade name JAGUAR TM C13S、JAGUAR TM C14S、JAGUAR TM C17 or JAGUAR TM C16 cationic guar gum from Rhone Poulenc; cationic modified cellulose such as UCARE from Amerchol TMPolymer JR 30 or JR 40; from Hercules 3000, 3196, GPX 215 or GPX 196; synthetic cationic polymer such as sold by Nalco 100. 280, 281 and 550; cationic starch, such as sold by Staley Inc. 100, 200, 300 and 400; cationic galactomannan, such as Henkel, Inc.'s 800 series; LM-200; and polyquaternium-24. Also suitable are high molecular weight polyethylene glycols such as WSR-205(PEG 14M), WSR-N-60K(PEG 45) and WSR-301 (PEG 90M).

[0106] Sunscreens may optionally be present in the self-foaming cleansing composition. When a sunscreen is present, the composition is typically opaque. Examples of sunscreens include titanium dioxide, zinc oxide, and the like. A particularly preferred sunscreen that can be used when an opaque soap composition is desired is ethylene glycol mono- or di-stearate, for example, in the form of a 20% solution in sodium lauryl ether sulfate. An alternative sunscreen is zinc stearate.

[0107] The product may take the form of a water-clear, ie, transparent composition, in which case it contains no opacifier.

[0108] Desirably, the optional skin benefit agents used in the antimicrobial compositions disclosed herein include niacinamide (vitamin B 3 ), tocopherol (vitamin E), aloe, alpha-hydroxy acids and esters, beta-hydroxy acids and esters, hydroxyethyl urea, polyhydroxy acids and esters, creatine, hydroquinone, tert-butyl hydroquinone, mulberry, hyaluronic acid and its salts (including but not limited to its Na+ and K+ salts), extracts, licorice extracts, resorcinol derivatives or combinations thereof. For example, the skin benefit agent can be sodium hyaluronate. Such benefit agents (including sodium hyaluronate) can be present in an amount of 0.0001 to 10% by weight, for example, 0.001 to 6.5% by weight, for example, 0.01 to 3.5% by weight, and for example, 0.01% by weight, based on the total weight of the self-foaming cleansing composition, including any and all values ​​and ranges contained therein.

[0109] Further optional water-soluble skin benefit agents include acids, for example amino acids such as arginine, valine or histidine. Other vitamins such as vitamin B12 may be used. 2 , pyridine amide, panthenol (vitamin B 5 ), Vitamin B 6 , vitamin C, combinations thereof, and the like. Derivatives (generally referring to certain derivatives developed or obtained from other vitamins), and in particular, water-soluble derivatives of such vitamins may also be used. For example, vitamin C derivatives such as ascorbyl tetraisopalmitate, magnesium ascorbyl phosphate, and ascorbyl glycosides may be used alone or in combination with each other. Nicotinamide derivatives such as nicotinamide adenine dinucleotide (NADH) and nicotinamide adenine dinucleotide phosphate (NADPH) may be used alone or in combination with each other. Electrolytes such as NaCl and / or KCl, MgCl may also be used. 2 When present in the compositions disclosed herein, the total amount of optional water-soluble benefit agents (including mixtures) may be from 0.0001 to 10 wt %, preferably from 0.001 to 6.5 wt % and most preferably from 0.01 to 3.5 wt %, based on the total weight of the self-foaming cleansing composition, including any and all values ​​and ranges subsumed therein.

[0110] It is also within the scope of the self-foaming cleansing composition to optionally include oil-soluble benefit agents. Illustrative examples of the types of oil-soluble benefit agents that may optionally be used in the self-foaming cleansing compositions disclosed herein include vitamin components such as vitamins A, D, E and K (and their oil-soluble derivatives).

[0111] Other optional oil-soluble benefit agents used include resorcinol and resorcinol derivatives such as 4-hexylresorcinol, 4-phenylethylresorcinol, 4-cyclopentylresorcinol, 4-cyclohexylresorcinol, 4-isopropylresorcinol or combinations thereof. Similarly, 5-substituted resorcinols such as 4-cyclohexyl-5-methylbenzene-1,3-diol, 4-isopropyl-5-methylbenzene-1,3-diol, combinations thereof, etc. can be used. 5-substituted resorcinols and their synthesis are described in commonly assigned U.S. Published Patent Application No. 2016 / 0000669A1.

[0112] Even other oil-soluble benefit agents that can be used include omega-3 fatty acids, omega-6 fatty acids, climbazole, magnolol, honokiol, farnesol, ursolic acid, myristic acid, geranylgeraniol, oleyl betaine, cocoyl hydroxyethyl imidazoline, hexanoyl sphingosine, 12-hydroxystearic acid (12HSA), petroselinic acid, conjugated linoleic acid, stearic acid, palmitic acid, lauric acid, terpineol, thymol essential oil components, a dissolution aid selected from limonene, pinene, camphene, cymene, citronellol, citronellal, geraniol, nerol, linalool, rhodiolaol, borneol, isoborneol, menthone, camphor, caryophyllene, isocaryophyllene, eugenol, isoeugenol, tea tree oil, eucalyptus oil, peppermint oil, neem oil, citronella oil, orange oil, bergamot oil, or a combination thereof.

[0113] Another optional oil-soluble beneficial agent that can be used is a retinoic acid precursor. The retinoic acid precursor can be retinol, retinal, retinyl ester, retinyl propionate, retinyl palmitate, retinyl acetate, or a combination thereof. Retinyl propionate, retinyl palmitate, and combinations thereof are generally preferred. Yet another retinoic acid precursor that can be used is provided by Molecular Design International under the name Commercially available p-methoxyphenyloxyethanol retinoic acid ester. It can be used in combination with any of the oil-soluble benefit agents described herein.

[0114] When the optional (i.e., 0.0 to 1.5 wt % based on the total weight of the self-foaming cleansing composition) oil-soluble benefit agent is used, it is typically present in 0.001 to 1.5 wt % of the overall self-foaming cleansing composition, including any and all values ​​and ranges subsumed therein, and for example, 0.05 to 1.2 wt %, such as 0.2 to 0.5 wt %, of the total weight of the self-foaming cleansing composition.

[0115] Preferred skin benefit agents include fatty acids, hydrocarbons, polyhydric alcohols, polyols, and mixtures thereof, of which, in one or more embodiments, are particularly interesting to include at least one C 12 To C 18 Emollients of fatty acids, petrolatum, glycerin, sorbitol and / or propylene glycol. Such agents may be added at appropriate steps in the process of preparing the self-foaming cleansing composition. Some benefit agents may be introduced as macrodomains.

[0116] Other optional ingredients such as antioxidants, fragrances, polymers, colorants, deodorants, dyes, enzymes, foam boosters, bactericides, antimicrobial agents, foaming agents, pearlescent agents, skin conditioning agents, stabilizers or superfatting agents can be added in appropriate amounts during the preparation of the self-foaming cleaning composition. Sodium metabisulfite, ethylenediaminetetraacetic acid (EDTA), borax or ethylene hydroxydiphosphonic acid (EHDP) can be added to the formulation.

[0117] The self-foaming cleaning composition disclosed herein can be optionally used to provide antimicrobial benefits. Antimicrobial agents that can be included to provide these benefits include oligodynamic metals or compounds thereof. Preferred metals are silver, copper, zinc, gold, aluminum or α. In ionic form, it can exist as any compound of a salt or any applicable oxidation state. Preferred silver compounds include silver oxide, silver nitrate, silver acetate, silver sulfate, silver benzoate, silver salicylate, silver carbonate, silver citrate, silver phosphate or a combination thereof, wherein silver oxide, silver sulfate and silver citrate are particularly interesting in one or more embodiments. In at least one aspect, the silver compound is silver oxide. Oligodynamic metals or compounds thereof can be included in an amount of 0.0001 to 2% by weight, preferably 0.001 to 1% by weight, of the cleaning bar composition. Alternatively, essential oil antimicrobial active ingredients can be included in the cleaning bar composition. Essential oil active ingredients that may be included are terpineol, thymol, carvacrol, (E)-2 (prop-1-enyl) phenol, 2-propylphenol, 4-pentylphenol, 4-sec-butylphenol, 2-benzylphenol, eugenol or a combination thereof. In addition, preferred essential oil active ingredients are terpineol, thymol, carvacrol, thymol or a combination thereof, with terpineol or thymol or a combination thereof being most preferred. When present, the essential oil active ingredient may be included in an amount of 0.001 to 1 wt %, preferably 0.01 to 0.5 wt %, of the composition.

[0118] Even other ingredients that may be used include octopirox (piroctone), zinc pyrithione, chloroxylenol, triclosan, cetylpyridinium chloride, and silver compounds including silver oxide, silver nitrate, silver sulfate, silver phosphate, silver carbonate, silver acetate, silver benzoate, combinations thereof, etc. If used, these other components typically comprise from 0.001 to 1.6% by weight of the overall self-foaming cleansing composition, including any and all values ​​and ranges subsumed therein, and preferably, from 0.01 to 1.2% by weight.

[0119] Unless otherwise expressly indicated, all numbers in this specification indicating amounts of material or reaction conditions, physical properties of materials and / or use are to be understood as modified by the word “about.” Unless otherwise indicated, all amounts are by weight of the final composition.

[0120] It should be noted that, when specifying any range of concentration or amount, any specific upper concentration limit may be associated with any specific lower concentration limit or amount and any sub-ranges included therein. In this regard, it should be noted that all ranges disclosed herein include endpoints, and the endpoints are independently combined with each other (e.g., a range of "up to 25% by weight," or more specifically, 5% by weight to 20% by weight, including endpoints and all intermediate values ​​in the range of 5% by weight to 25% by weight, etc.). "Combination" includes blends, mixtures, alloys, reaction products, etc. In addition, the terms "first," "second," etc. herein do not represent any order, amount, or importance, but are used to distinguish one element from another. Unless otherwise specified herein or clearly contradictory to the context, the terms "one," "one," and "the" do not represent the limitation of amount, but should be interpreted as covering the singular and plural. The suffix "(s)" used herein is intended to include both the singular and plural of the term it modifies, thereby including one or more terms (e.g., film (s) includes one or more films). Reference throughout the specification to "one embodiment," "one aspect," "another embodiment," "another aspect," "an embodiment," "an aspect," etc. means that a particular element (e.g., feature, structure, and / or characteristic) described in conjunction with the embodiment or aspect is included in at least one embodiment or aspect described herein, and may or may not be present in other embodiments or aspects. Furthermore, it should be understood that the described elements may be combined in any suitable manner in the various embodiments or aspects.

[0121] All cited patents, patent applications and other references are incorporated herein by reference in their entirety. However, if a term in this application contradicts or conflicts with a term in the reference incorporated therein, the term in this application takes precedence over the conflicting term in the reference incorporated therein. Although specific aspects have been described, applicants or other technical personnel in the art may expect existing or currently unforeseen alternatives, modifications, variations, improvements and substantial equivalents. Accordingly, the attached claims submitted and as they may be modified are intended to include all of these alternatives, modifications, variations, improvements and substantial equivalents.

[0122] For the avoidance of doubt, the word "comprising" means "including" but not necessarily "consisting of" or "composed of." In other words, the listed steps, options or alternatives do not have to be exhaustive.

[0123] The disclosure of the invention as present herein should be deemed to cover all aspects as present in the claims that are multiple dependent on each other, regardless of the fact that the claims may exist without multiple dependence or redundancy. Unless otherwise stated, numerical ranges expressed in the format of "from x to y" should be understood to include x and y. When specifying the range of any value or amount, any specific upper limit value or amount can be associated with any specific lower limit value or amount. Unless otherwise stated, all percentages and ratios contained herein are by weight. The various features of the invention mentioned in the above individual chapters may be applied to other chapters with necessary modifications when appropriate. Therefore, the features specified in one chapter can be appropriately combined with the features specified in other chapters. Any chapter title is added only for convenience and is not intended to limit the present disclosure in any way.

[0124] Example

[0125] The following examples are merely illustrative of the self-foaming cleaning compositions disclosed herein and are not intended to limit the scope thereof.

[0126] In the following examples, the compositions shown in Table 1 were prepared for deposition assays. The pH of the compositions in Table 1 was between 5.5 and 5.9. In preparing the examples, 12HSA was initially added at 0.25 wt % together with 0.2 wt % polysorbate-20. It was found that 12HSA precipitated from the composition at this level, causing stability issues. Lower 12HSA levels were tested and found to be stable, and 12HSA deposition was tested. The formulations in Table 1 are biodegradable. The formulations were prepared by heating water to 75°C, adding all solid materials, stopping heating, and adding the remaining ingredients.

[0127] Table 1: Formulation composition

[0128]

[0129] Sedimentation assays were performed as follows

[0130] Sedimentation assay

[0131] 1) Cut the in vitro skin into 5cm x 5cm size.

[0132] 2) In vitro The skin was pre-wetted with 500 μl DI water and massaged with fingers (wearing gloves) for 30 sec, and excess water was drained by shaking.

[0133] 3) 80 mg of the neat product was applied to the Vitro skin.

[0134] 4) Use your latex-gloved fingertips to lather for 20 seconds.

[0135] 5) Leave the foam on the Vitro Skin for 30 seconds.

[0136] 6) Rinse the skin with 100 ml of distilled water for 30 seconds (rinse both sides of the skin).

[0137] 7) The active substances deposited on the in vitro skin were extracted in methanol by sonication in a Bath sonicator for 20 minutes.

[0138] 8) The extract was analyzed by LCMS at 3P.

[0139] Quantification of 12-HSA by LC-MS method

[0140] Liquid Chromatograph mass spectrometer with multiple reaction monitoring mode (MRM mode) was used to avoid interference from the matrix, especially stearic acid. The instrument operating conditions for the analysis are given below.

[0141] Equipment: Agilent HPLC 1200 series with AB Sciex API 4000QQQ

[0142] Column: Agilent Poroshell 120SB-C18, 2.7μm, 4.6X 150mm

[0143] Mobile phase: 20 mM ammonium formate (10): acetonitrile (90)

[0144] Column flow rate: 0.4ml / min

[0145] Detector: Mass Spectrometer AB Sciex API 4000, QQQ

[0146] Sample volume: 10 μl

[0147] Column temperature: 45°C

[0148] Total running time: 15min

[0149] Retention time: 8.9min

[0150] Mass spectrometer conditions :

[0151] Polarity: Negative

[0152]

[0153] Collision gas CAD 9 Air curtain air CUR 25 Atomizing gas GS1 30 Heating gas (turbine gas) GS2 35 Ion source (voltage) IS(V) -4500 Ion source temperature TEM 400

[0154] DP: Declustering Voltage

[0155] EP: Entry voltage

[0156] CE: Collision Energy

[0157] CXP: Collision cell exit voltage

[0158] Mode:MRM

[0159] Ions: 299.3 to 281.3 (quantitative); 299.3 to 253.2 (qualitative); 299.3 to 168.7; 299.3 to 112.9

[0160] LC-MSMS technique was developed for quantification of 12-HSA present in self-foaming cleansing compositions and 12-HSA deposited on in vitro skin after washing. The linearity range was 0.1-10 ppm with a regression coefficient R2>0.995.

[0161] By reducing the ratio of 12HSA to emulsifier from 1.25:1 to 0.5:1, 12HSA remained dissolved in the formulation and no precipitate formed over time. As can be seen from Table 2, it was unexpectedly found that the compositions disclosed herein increase the deposition of 12HSA on surfaces such as skin, even after rinsing.

[0162] Table 2: 12HSA deposition

[0163] sample# <![CDATA[Deposition, μg / cm 2 > 1 0.14 2 0.17 3 0.11 Average deposition 0.14 Standard Deviation 0.03

Claims

1. A self-foaming cleaning composition comprising: 2.5 to 10 wt % of a surfactant based on the total weight of the self-foaming cleaning composition, wherein the surfactant comprises an anionic surfactant and a zwitterionic surfactant; 5 to 75 wt % of a humectant based on the total weight of the cleaning composition; and 0.01 to 1.0 wt % of a nutrient based on the total weight of the self-foaming cleaning composition; wherein the composition is substantially free of sulfates.

2. The self-foaming cleansing composition of claim 1, wherein the nutrient agent helps replenish essential nutrients for the skin to help the skin maintain its natural moisture after using the self-foaming cleansing composition.

3. The self-foaming cleaning composition according to claim 1 or 2, wherein the surfactant comprises the anionic surfactant and the amphoteric surfactant in a weight ratio of 0.5:2, preferably a weight ratio of 0.75 to 1.5, more preferably a weight ratio of 0.8 to 1, and even more preferably a weight ratio of 0.85 to 0.

95.

4. The self-foaming cleansing composition of any of the preceding claims, wherein the anionic surfactant comprises sodium lauroyl glycinate, sodium cocoyl glycinate, sodium lauroyl glutamate, sodium cocoyl glutamate, sodium lauroyl isethionate, sodium cocoyl isethionate, alpha-olefin sulfonate (AOS), or a combination thereof.

5. The self-foaming cleansing composition of any of the preceding claims, wherein the zwitterionic surfactant comprises cocodimethylcarboxymethyl betaine, cocamidopropyl betaine, laurylamidopropyl betaine, cocamidopropyl hydroxysultaine, lauryl hydroxysultaine, cocamide monoethanolamide, or a combination thereof.

6. The self-foaming cleansing composition of any of the preceding claims, wherein the humectant comprises glycerin, propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol, sorbitol, hydroxypropyl sorbitol, hexylene glycol, 1,3-butylene glycol, isopentyl glycol, 1,2,6-hexanetriol, ethoxylated glycerin, propoxylated glycerin, or a combination thereof.

7. The self-foaming cleansing composition of any preceding claim, wherein the nutrient comprises 10-hydroxystearic acid, 12-hydroxystearic acid, petroselinic acid, conjugated linoleic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, or a combination thereof.

8. The self-foaming cleaning composition according to any of the preceding claims, further comprising 0.01 to 1.0 wt % of a chelating agent based on the total weight of the self-foaming cleaning composition, wherein the chelating agent comprises ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA), pentasodium diethylenetriaminepentaacetate, trisodium N-(hydroxyethyl)-ethylenediaminetriacetate, an acid form of ethylenediaminetetraacetic acid (EDTA), phytic acid, or a combination thereof.

9. The self-foaming cleaning composition according to any one of claims 1 to 7, further comprising 0.01 to 1.0 wt % of a chelating agent based on the total weight of the self-foaming cleaning composition, wherein the chelating agent comprises sodium gluconate, nitrilotriacetic acid (NTA), ethylenediamine disuccinic acid (EDDS), iminodisuccinic acid (IDS), methylglycine diacetate, methylglycine diacetic acid (MGDA), L-glutamic acid N,N-diacetic acid (GLDA), ethylenediamine-N,N′-diglutaric acid (EDDG), ethylenediamine-N,N′-dimalonic acid (EDDM), 3-hydroxy-2,2-iminodisuccinic acid (HIDS), 2-hydroxyethyliminodiacetic acid (HEIDA), pyridine-2,6-dicarboxylic acid (PDA), sodium citrate or a combination thereof.

10. A self-foaming cleaning composition according to any one of claims 1 to 7 and 9, wherein the composition is biodegradable.

11. A self-foaming cleaning composition according to any preceding claim, wherein the composition has a pH of from 4 to 9, preferably wherein the pH is from 5 to 6.

12. A self-foaming cleaning composition according to any preceding claim, further comprising an emulsifier.

13. A self-foaming cleaning composition according to any preceding claim, further comprising a pH adjusting agent.

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