Cleansing composition

Abstract

The cleansing composition comprises less than 12% by weight of a C10-C18 fatty acid; 0.25-5% by weight of a surfactant; and 0.1-3% by weight of an organic buffer. The method of forming the foaming composition is accomplished by forming the cleansing composition and stirring the resulting composition for 5 minutes or less.

Description

[Technical Field]

[0001] Disclosed herein are cleansing compositions comprising fatty acids, surfactants, and organic buffers. The cleansing compositions comprise less than 12% by weight of C10-C18 fatty acids, 0.25 to 5% by weight of surfactants, and 0.1 to 3% by weight of organic buffers. [Background technology]

[0002] Liquid cleansing compositions are generally very popular with consumers. These cleansing compositions are expected to foam, lather, and rinse off the body relatively easily. Cleansing compositions, such as personal wash compositions or shower gel compositions, generally contain fatty acids and surfactants.

[0003] Cleansing compositions are generally formulated using a variety of surfactants that produce a large amount of foam to wash away excess sebum and dirt from hair and / or skin. Anionic surfactants can remove natural protective oils from skin and hair, and may dry out, stiffen, and / or tangle the skin and / or hair. There is a constant need for cleansing compositions that can provide the desired cleansing sensation and effect while using smaller amounts of surfactant. The procurement of surfactants can be very expensive and environmentally impactful, depending on how and where they are procured.

[0004] U.S. Patent Publication 2018 / 0021232A1 to Ruan et al. discloses a combination of a blend of long-chain fatty acid salts and a short-chain fatty acid salt for providing superior feel and performance characteristics when incorporated into a skin cleansing composition. The ratio of the amount of short-chain fatty acids to the amount of the long-chain fatty acid blend is 2.5:1 to 3.5:1. The composition also has antibacterial properties, thereby reducing the amount of antibacterial compounds used in the composition.

[0005] International Patent Publication WO2012 / 078160A1 to Fan et al. discloses an aqueous composition comprising (a) a surfactant comprising a salt of a C10-C16 alcohol ethoxylate sulfate, a betaine surfactant, and an alkyl polyglucoside (wherein the salt of the C10-C16 alcohol ethoxylate sulfate is present in a greater amount than any other surfactant); and (b) at least 15% by weight of a C12-C18 fatty acid in the composition. A cleansing method comprises applying the composition to the skin or hair and washing, and optionally rinsing with water.

[0006] International Patent Publication WO2013 / 186715A2 to Gavillon et al. discloses a rinse-off foaming cleansing cosmetic composition comprising a surfactant system of active substances in an amount of 3% by weight or more of the total weight of the composition, at least one suspending agent, at least one cosmetic additive in particulate form, fibrous material or a mixture thereof, and at least one water-insoluble film-forming polymer in the form of particles of a type such as a copolymer containing at least one monomer unit of the acrylate type (where the polymer particles have a number mean primary size greater than 500 nanometers). The present invention also relates to a method for cleansing a keratinous substance, wherein the composition is applied to the keratinous substance to foam it, and then the composition is rinsed off.

[0007] U.S. Patent Publication 2003 / 0134761A1 to Sebillotte-Arnaud et al. discloses a cleansing composition comprising, in a physiologically acceptable aqueous medium, (1) at least one foaming surfactant, (2) at least one silica in an amount of at least 1% by weight relative to the total weight of the composition, (3) at least one oxyalkylated compound, and (4) at least one polymer selected from cationic polymers and amphoteric polymers. The composition has the viscosity of a gel and produces good foam. It can be used in cleansing products for removing makeup from skin, eyes, scalp and / or hair, and / or for disinfecting skin and / or scalp.

[0008] U.S. Patent Publication 2005 / 0143277A1 to Dufay et al. discloses a surfactant composition comprising: (a) about 15 to 20% by weight of an alkyl and / or alkenyl oligoglycoside; (b) about 15 to 20% by weight of betaine; and (c) about 60 to 70% by weight of an alkyl ether sulfate (where all weights are based on the weight of the composition).

[0009] UK Patent Application GB9916322.2 to Masaaki et al. discloses a composition having a mixture of isoprene glycol and dipropylene glycol, wherein the mixture slows freezing, thereby allowing the composition to be pumped out of each container. The composition also contains soap, sodium lauryl ether sulfate, cocamidopropyl betaine, glycerin, tetrasodium ethylenediaminetetraacetate (EDTA), fragrance, and water. The composition is primarily used as a shower gel. [Prior art documents] [Patent Documents]

[0010] [Patent Document 1] U.S. Patent Publication No. 2018 / 0021232A1

Patent Document 2

Patent Document 3

Patent Document 4

Patent Document 5

Patent Document 6

Summary of the Invention

Problems to be Solved by the Invention

[0011] There has always been a desire to provide a cleansing composition that reduces costs and uses natural resources more sustainably while simultaneously reducing the surfactant concentration throughout the composition and providing desirable foaming and cleansing properties.

[0012] The following is a brief description of the drawings, where like elements are similarly numbered, and the drawings are provided for the purpose of illustrating the cleansing compositions disclosed herein and not for the purpose of limiting the cleansing compositions.

Brief Description of the Drawings

[0013] [Figure 1] Illustration by a graph of the pH of various cleansing compositions versus grams of product in the final mixed solution. [Figure 2] Illustration by a graph of the foaming onset of various cleansing compositions versus grams of product in the final mixed solution. [Figure 3] Illustration by a graph of the foam volume of various cleansing compositions versus grams of product in the final mixed solution.

[0014] Cleansing compositions are disclosed in various embodiments. The cleansing composition may include fatty acids, surfactants, and organic buffers. The cleansing composition contains less than 12% by weight of C10-C18 fatty acids. The cleansing composition contains 0.25 to 5% by weight of surfactants. The cleansing composition contains 0.1 to 3% by weight of organic buffers.

[0015] The features and characteristics described above, as well as other features and characteristics, are illustrated by the following detailed explanation. [Modes for carrying out the invention]

[0016] Disclosed herein are cleansing compositions. These cleansing compositions may include fatty acids, surfactants, and organic buffers. The fatty acids may include C10-C18 fatty acids. The cleansing compositions may contain less than 12% by weight of fatty acids. The cleansing compositions may contain 0.25 to 5% by weight of surfactants. The compositions may contain 0.1 to 3% by weight of organic buffers. Previously, reducing the amount of surfactant present in a composition resulted in a decrease in foaming properties and / or performance. The cleansing compositions disclosed herein can reduce the level of surfactant in the composition without losing desirable cleansing properties such as foaming, cleansing, and / or rinsing. The cleansing compositions disclosed herein can also provide an enhanced foaming effect, or even an instantaneous foaming effect. While we do not wish to be bound by theory, it is thought that when a cleansing composition is diluted during use (e.g., in a shower), the cleansing composition reverts to its individual components due to a lack of available counterions. For example, the cleansing composition reverts to its fatty acid components due to a lack of available counterions. Unexpectedly, it was found that including an organic buffer in the cleansing composition provides a reservoir for counterions that associate with fatty acids in a diluted environment, thereby maintaining the levels of fatty acids and surfactants present in the cleansing composition. Furthermore, including an organic buffer did not impair foaming performance compared to cleansing compositions containing a larger amount of surfactant. The cleansing compositions disclosed herein reduce the total amount of fatty acids and total amount of surfactants present in the composition while maintaining foaming, cleaning, and / or rinsing performance.

[0017] Unexpectedly, it was found that the pH of the cleansing composition could be adjusted by including an organic buffer, thereby achieving the desired amount and rate of foaming even with a small amount of surfactant present in the cleansing composition. In other words, a synergistic effect exists between the organic buffer and the surfactant, making it possible to achieve the same or slightly shorter foaming time compared to cleansing compositions with increased amounts of surfactant. This synergistic effect also provides the advantage of desired foaming in the cleansing composition. The organic buffer can provide ions that replace ions lost during the initial neutralization of fatty acids. This replacement of lost ions can help maintain a constant pH and surfactant level in the cleansing composition. Surprisingly, it was found that the pH of the cleansing composition actually increased when diluted in a non-buffered system, and that when an organic buffer was added to the cleansing composition, the pH trend was corrected, and the pH decreased during dilution. It was also surprising that the amount of foaming was further increased by including an organic buffer in the cleansing composition. The amount of surfactant used in the cleansing composition can be reduced to 25% or less, for example, to 50% or less, for example, 40% or less, for example, 30% or less, for example, 20% or less, for example, 15% or less, for example, 10% or less. The pH of the cleansing composition can be 8.0 to 10.0, preferably 8.5 to 10.0, and more preferably 9.0 to 10.0.

[0018] The molar ratio of the organic buffer to the surfactant can be 1:5 to 3:2, preferably 1:4 to 1:1, and more preferably 1:4 to 1:2. The molar ratio of the organic buffer to the total fatty acids in the cleansing composition can be 1.2 to 1.5, preferably 1.15 to 1.7, and more preferably 1.12 to 1.10.

[0019] The fatty acids in the cleansing composition may be present in an amount of less than 20% by weight. For example, the fatty acids may be present in an amount of less than 16% by weight, for example, less than 13% by weight, for example, less than 12% by weight, for example, between 5% and 20% by weight, for example, between 7.5% and 15% by weight, for example, between 9% and 12% by weight, for example, between 10% and 11.5% by weight.

[0020] The fatty acid contains at least 10 carbon atoms, preferably at least 12 carbon atoms. The fatty acid may contain 10 to 18 carbon atoms, preferably 12 to 16 carbon atoms. The fatty acid may be saturated, unsaturated, linear, or branched. The fatty acid can be selected from lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, lanolic acid, isostearic acid, arachidonic acid, hydroxystearic acid, or a combination thereof.

[0021] The fatty acid can be neutralized with a neutralizing agent to form soap. For example, the fatty acid can be neutralized with an oxide. Examples of such oxides include, but are not limited to, sodium hydroxide (NaOH), potassium hydroxide (KOH), sodium carbonate (Na2CO3), ammonium hydroxide (NH4OH), or combinations thereof. In one embodiment, the fatty acid is neutralized with sodium hydroxide or potassium hydroxide. In a preferred embodiment, the fatty acid is neutralized with potassium hydroxide.

[0022] The surfactant in the cleansing composition may be present in an amount of 0.25 to 5% by weight. For example, the surfactant may be present in an amount of 0.5 to 3.5% by weight, for example, 0.75 to 2.0% by weight, for example, 1.0 to 1.5% by weight, for example, 1.1 to 1.4% by weight.

[0023] The surfactant can be selected from anionic surfactants, zwitterionic surfactants, amphoteric surfactants, or combinations thereof.

[0024] With regard to the anionic surfactants present in the cleansing compositions disclosed herein, examples of anionic surfactants used include: aliphatic sulfonates, for example, primary alkanes (e.g., C8-C8). 22 ) Sulfonates, primary alkanes (e.g., C8-C 22 ) Disulfonate, C8-C 22 Alkenesulfonate, C8-C 22 Hydroxyalkane sulfonates or alkylglyceryl ether sulfonates (AGS); or aromatic sulfonates, such as alkylbenzene sulfonates. The anion may further be an alkyl sulfate (for example, C 12 -C 18 It may also be an alkyl sulfate or an alkyl ether sulfate (e.g., alkyl glyceryl ether sulfate). Among alkyl ether sulfates, formula: [ka]

[0025] [In the formula, R is an alkyl or alkenyl having 8 to 18 carbon atoms, preferably 12 to 18 carbon atoms; n has an average value of at least 1.0, preferably less than 5, most preferably 1 to 4; and M is a solubilized cation, such as sodium, potassium, ammonium, or substituted ammonium.] Some are represented by this.

[0026] The anionic surfactant may also be: alkyl sulfosuccinates (e.g., mono- and dialkyl, e.g., C6-C) 22 Sulfosuccinates; alkyl and acyl taurates (often methyl taurates), alkyl and acyl sarcosinates, sulfoacetates, C8-C 22Alkyl phosphates and phosphonates, alkyl phosphate esters and alkoxylated alkyl phosphate esters, acyl lactates, C8-C 22 monoalkyl succinates and maleates, sulfoacetates, alkyl glucosides, and acyl isethionates, etc.

[0027] Sulfosuccinates have the formula:

Chemical formula

[0028] monoalkyl sulfosuccinates represented by, and the formula:

Chemical formula

[0029] amide-MEA sulfosuccinates represented by, where R 1 is in the range of C8-C 22 alkyl.

[0030] Sarcosinates generally have the formula:

Chemical formula

[0031] shown by, where R 2 is in the range of C8-C 20 alkyl.

[0032] Taurates generally have the formula:

Chemical formula

[0033] identified by, where R 3 is C8-C 20 alkyl, and R 4 is C1-C4 alkyl. <​​M is the solubilized cation described earlier.

[0035] The cleansing compositions disclosed herein are C8-C 18 Acyl isethionates may be included. These esters are prepared by reacting alkali metal isethionates with mixed aliphatic fatty acids having 6 to 18 carbon atoms and an iodine value of less than 20. At least 75% of the mixed fatty acids have 12 to 18 carbon atoms, and up to 25% have 6 to 10 carbon atoms.

[0036] The acyl isethionate may be an alkoxylated isethionate as described in U.S. Patent No. 5,393,466 by Ilardi et al. (title “Fatty Acid Esters of Polyalkoxylated isethonic acid”; issued February 28, 1995; incorporated herein by reference). This compound has the general formula: [ka]

[0037] [In the formula, R 5 [where m is an alkyl group having 8 to 18 carbon atoms, m is an integer from 1 to 4, X and Y are each independently hydrogen or an alkyl group having 1 to 4 carbon atoms, and M is the solubilized cation described above.] It is represented as follows.

[0038] In one embodiment of the cleansing composition, the anionic surfactant used is 2-acrylamido-2-methylpropanesulfonic acid, ammonium lauryl sulfate, ammonium perfluorononanoate, potassium lauryl sulfate, sodium alkyl sulfate, sodium dodecyl sulfate, sodium laurate, sodium laureth sulfate, sodium lauroyl sarcosinate, sodium stearate, sodium sulfosuccinate ester, or a combination thereof. Such anionic surfactants are commercially available from suppliers such as Galaxy Surfactants, Clariant, Sino Lion, Stepan Company, and Innospec.

[0039] In some cases, the cleansing compositions disclosed herein may contain amphoteric surfactants. Examples of amphoteric surfactants (which may be zwitterionic depending on pH) include sodium acylamphoacetate, sodium acylamphopropionate, disodium acylamphodiacetate, and disodium acylamphodipropionate, where the acyl (i.e., alkanoyl group) is C7-C 18 It may contain an alkyl group. Exemplary examples of amphoteric surfactants include sodium lauroamphoacetate, sodium cocoamphoacetate, sodium lauroamphoacetate, sodium cocoamphoacetate, and / or combinations thereof.

[0040] The zwitterionic surfactants disclosed herein may be present in the cleansing composition in an amount of 3 to 10% by weight, preferably 4 to 8% by weight, and more preferably 5 to 7% by weight. In one embodiment, the zwitterionic surfactant may be present in an amount of more than 5% by weight. With respect to the zwitterionic surfactants used in the cleansing composition of the present invention, such surfactants contain at least one acid group. Such acid groups may be carboxylic acid groups or sulfonic acid groups. They often contain quaternary nitrogen and therefore may be quaternary amino acids. They should generally contain an alkyl or alkenyl group of 7 to 18 carbon atoms, and generally have an overall structural formula: [ka]

[0041] [In the formula, R 7 R is an alkyl or alkenyl molecule with 7 to 18 carbon atoms; 7 and R 8 Each of the following is independently an alkyl, hydroxyalkyl, or carboxyalkyl group of 1 to 3 carbon atoms; q is 2 to 4; r is 0 to 1; A is an alkylene group of 1 to 3 carbon atoms, which may be substituted with hydroxyl; and B is -CO2- or -SO3-. Follow the rules.

[0042] A desirable zwitterionic surfactant for use in the cleansing compositions disclosed herein, which falls within the range of the above general formula, is: [ka]

[0043] A simple betaine represented by, and formula: [ka]

[0044] [In the formula, t is either 2 or 3] This includes amide betaine represented by .

[0045] In both equations, R 6 , R 7 and R 8 This is as defined earlier. 6 In particular, base R 6 C derived from coconut oil such that at least half (preferably at least three-quarters) of it have 10 to 14 carbon atoms. 12 Alkyl and C 14 It may be a mixture of alkyl groups. 7 and R 8 Preferably, it is methyl.

[0046] Further possibilities include the zwitterionic surfactant having the formula: [ka]

[0047] [In the formula, u is either 2 or 3] It is a sulfobetaine represented by the above formula, or -(CH2)3SO3 - -CH2C(OH)(H)CH2SO3 - These are variants that have been replaced by [something else].

[0048] In these equations, R 6 , R 7 and R 8 This is as defined above.

[0049] Exemplary examples of zwitterionic surfactants that are desirable to use include betaines, such as lauryl betaine, citrate betaine, cocodimethylcarboxymethyl betaine, cocoamidopropyl betaine, cocoalkyldimethyl betaine, and laurylamidopropyl betaine. Other zwitterionic surfactants that are desirable to use include, but are not limited to, [list of other surfactants]. Further zwitterionic surfactants suitable for use include cocoamidopropyl sultaine, such as cocamidopropyl hydroxysultaine. Preferred zwitterionic surfactants include lauryl betaine, betaine citrate, sodium hydroxymethylglycinate, carboxymethyl)dimethyl-3-[(1-oxododecyl)amino]propylammonium hydroxide, cocoalkyldimethylbetaine, (carboxymethyl)dimethyloleylammonium hydroxide, cocoamidopropyl betaine, (carboxymethyl)dimethyloleylammonium hydroxide, cocoamidopropyl betaine, (carboxylatomethyl)dimethyl(octadecyl)ammonium, cocamidopropyl hydroxysultaine, or combinations thereof. Such surfactants are commercially available from suppliers such as Stepan Company, Solvay, and Evonik, and the use of mixtures of the aforementioned surfactants is within the scope of the cleansing compositions disclosed herein.

[0050] Nonionic surfactants may be used in the cleansing composition as appropriate. When used, nonionic surfactants are typically used at low levels of 0.5, 1, 1.5, or 2% by weight, and at high levels of 6, 8, 10, or 12% by weight. Nonionic substances that can be used include, in particular, reaction products of compounds having hydrophobic groups and reactive hydrogen atoms (e.g., aliphatic alcohols, acids, amides, or alkylphenols) and alkylene oxides (especially ethylene oxide alone or ethylene oxide in the presence of propylene oxide). Certain nonionic surfactant compounds are alkyl (C6-C 22)Phenolethylene oxide condensate, aliphatic (C8-C 18 These are condensation products of primary or secondary linear or branched alcohols with ethylene oxide, and products produced by condensing ethylene oxide with the reaction product of propylene oxide and ethylenediamine. Other nonionic surfactants include long-chain tertiary amine oxides, long-chain tertiary phosphine oxides, and dialkyl sulfoxides.

[0051] In one embodiment, the nonionic surfactant has the following structure: (a) HOCH2(CH2) s (CH2CH2O) v H; or, (b) HOOC(CH2) c (CH2CH2O) d H [Here, s and v are independently integers less than or equal to 18; and c and d are independently integers greater than or equal to 1.] Fatty acid / alcohol ethoxylates having the following can be included. In one embodiment, s and v can each be independently 6 to 18; and c and d can each be independently 1 to 30. Another option for nonionic surfactants is formula: HOOC(CH2) i -CH=CH-(CH2) k (CH2CH2O) z H [In the formula, i and k are independently between 5 and 15; and z is between 5 and 50.] Examples include nonionic surfactants represented by . In another embodiment, i and k are independently 6 to 12; and z is 15 to 35.

[0052] The nonionic surfactant may further include sugar amides such as polysaccharide amides. Specifically, the surfactant may be one of the lactobion amides described in U.S. Patent No. 5,389,279 to Au et al., issued on 14 February 1995 (titled "Compositions Comprising Nonionic Glycolipid Surfactants"; incorporated herein by reference), or it may be one of the sugar amides described in U.S. Patent No. 5,009,814 to Kelkenberg, issued on 23 April 1991 (titled "Use of N-Poly Hydroxyalkyl Fatty Acid Amides as Thickening Agents for Liquid Aqueous Surfactant Systems"; incorporated herein by reference).

[0053] Exemplary examples of nonionic surfactants that may be used in the cleansing compositions disclosed herein include, but are not limited to, polyglycosides, cetyl alcohols, decyl glucosides, lauryl glucosides, octaethylene glycol monododecyl ethers, n-octyl beta-d-thioglucopyranosides, octyl glucosides, oleyl alcohols, polysorbates, sorbitan, stearyl alcohols, or combinations thereof.

[0054] In one embodiment, a cationic surfactant may be used in the cleansing composition of this application, depending on the circumstances.

[0055] One class of cationic surfactants includes heterocyclic ammonium salts, such as cetyl chloride or stearylpyridinium chloride, alkylamidoethylpyrinodium methyl sulfate, and rapillium chloride.

[0056] Tetraalkylammonium salts are another useful class of cationic surfactants suitable for use. Examples include: cetyl or stearyltrimethylammonium chloride or bromide; hydrogenated palm or tallow trimethylammonium halide; behenyltrimethylammonium halide or methyl sulfate; decylisononyldimethylammonium halide; ditallow (or distearyl)dimethylammonium halide; and behenyldimethylammonium chloride.

[0057] Another type of cationic surfactant that can be used is a variety of ethoxylated quaternary amines and ester quaternary ammonium compounds (quats). Examples include PEG-5 stearylammonium lactate (e.g., Genamin KSL from Clariant), PEG-2 cocoammonium chloride, PEG-15 hydrogenated tallow ammonium chloride, PEG-15 stearylammonium chloride, dipalmitoylethylmethylammonium chloride, dipalmitoylhydroxyethylmethyl sulfate, and stearylamidopropyldimethylamine lactate.

[0058] Further useful cationic surfactants include quaternary hydrolysis products of silk, wheat, and keratin proteins, and the use of mixtures of these cationic surfactants is within the scope of the cleansing composition.

[0059] When used, the cationic surfactant constitutes 1.0% by weight or less of the cleansing composition. If present, the cationic surfactant typically constitutes 0.01 to 0.7% by weight of the cleansing composition, more typically 0.1 to 0.5% by weight, which encompasses the entire range contained therein.

[0060] The cleansing composition further includes an organic buffer. The organic buffer may be present in the cleansing composition in an amount of 0.1 to 3% by weight, for example, 0.25 to 2% by weight, for example, 0.5 to 1.5% by weight, for example, 0.7 to 1.0% by weight, for example, 0.1 to 0.7% by weight. The organic buffer may include amines, salts, or combinations thereof. For example, the organic buffer may include triethanolamine, diethanolamine, sodium triethanolamine phosphate, calcium carbonate, sodium phosphate, disodium phosphate, trisodium phosphate, or combinations thereof. In one embodiment, the organic buffer may include triethanolamine. The organic buffer may have a pKa range of 6.0 to 9.0, preferably 6.5 to 8.5, and more preferably 7.0 to 8.0.

[0061] The cleansing compositions disclosed herein may further contain 0.5 to 2.5% by weight of a thickening agent, preferably 0.75 to 2.0% by weight, and more preferably 1.0 to 1.5% by weight of a thickening agent. Polysaccharides are particularly useful. Examples include fibers, starches, natural / synthetic gums, and cellulose compounds. Representative starches are chemically modified starches, such as sodium hydroxypropyl starch phosphate and aluminum starch octenyl succinate. Tapioca starch is often preferred, as is maltodextrin. Suitable gums include xanthan gum, sclerotia, pectin, karaya, arabic, agar, guar (including Acacia senegal guar), carrageenan, alginates, and combinations thereof. Suitable cellulose compounds include hydroxypropyl cellulose, hydroxypropyl methylcellulose, ethyl cellulose, sodium carboxymethylcellulose (cellulose gum / carboxymethylcellulose), and cellulose (e.g., cellulose microfibrils, cellulose nanocrystals, or microcrystalline cellulose).

[0062] Sources of cellulose microfibrils include secondary cell wall materials (e.g., wood pulp, cotton), bacterial cellulose, and primary cell wall materials. Preferably, the source of primary cell wall material is selected from the parenchyma of fruits, roots, bulbs, tubers, seeds, leaves, and combinations thereof; more preferably, it is selected from citrus fruits, tomato fruits, peach fruits, pumpkin fruits, kiwi fruits, apple fruits, mango fruits, sugar beets, beetroot, turnips, parsnips, corn, oats, wheat, peas, and combinations thereof; and even more preferably, it is selected from citrus fruits, tomato fruits, and combinations thereof. The most preferred source of primary cell wall material is the parenchyma of citrus fruits. Citrus fibers (e.g., now available from Herbacel® as AQ Plus) can also be used as a source of cellulose microfibrils. Cellulose sources can be surface-modified by any known method (for example, the method described in "Colloidal Polymer Science, Kalia et al., “Nanofibrillated cellulose: surface modification and potential applications” (2014), Vol 292, Pages 5-31").

[0063] Synthetic polymers constitute yet another class of effective thickeners. This category includes cross-linked polyacrylates (e.g., Carbomers), polyacrylamides (e.g., Sepigel® 305), and taurate copolymers (e.g., Simulgel® EG and Aristoflex® AVC; where these copolymers are identified by INCI nomenclature as sodium acrylate / sodium acryloyldimethyltaurate and acryloyldimethyltaurate / vinylpyrrolidone copolymer, respectively). Another preferred synthetic polymer suitable for thickening is the acrylate-based polymer commercially available from Seppic and sold under the name Simulgel INS100. Calcium carbonate, fumed silica, and magnesium aluminum silicate can also be used.

[0064] Particularly preferred thickeners include sodium hydroxypropyl starch phosphate, aluminum starch octenyl succinate, tapioca starch, maltodextrin, xanthan gum, agar gum, guar gum, carrageenan gum, alginate gum, hydroxypropyl cellulose, hydroxypropyl methylcellulose, ethylcellulose, sodium carboxymethylcellulose, cellulose, polyethylene glycol (e.g., polyethylene glycol diester stearic acid), or combinations thereof. Such thickeners are commercially available from Dow Chemical Company or Hallstar Company.

[0065] The cleansing composition may optionally further contain an antistatic agent. The antistatic agent may be an imidazolinium salt, pyridinium salt, piperidinium salt, morpholinium salt, quaternary ammonium salt, or a combination thereof. For example, the antistatic agent may be a polyquaternium salt. One such polyquaternium salt is polyquaternium 10, which is available from various suppliers such as KCL Limited and Dow Chemical Company. If present, the antistatic agent may be present in an amount of less than 1% by weight, preferably less than 0.5% by weight, and more preferably less than 0.25% by weight. For example, the antistatic agent may be present in an amount of 0.01 to 0.2% by weight, for example, 0.1% by weight.

[0066] Depending on the circumstances, a conditioning agent may be included in the cleansing composition. Examples of conditioning agents include: occlusive agents, e.g., petrolatum, dimethicone; humectants, e.g., glycerin, propylene glycol, sorbitol; emollients and oils, e.g., triglycerides, natural oils, lanolin, synthetic esters; proteins; silicones, e.g., dimethicone, cyclomethicone, amodimethicone; cationic surfactants, e.g., cetrimonium chloride, stearalkonium chloride; and polymers, e.g., cationic polymers, e.g., polyquaternium. If present, the conditioning agent may be present in an amount of 2% to 7% by weight, preferably 3% to 6% by weight, and more preferably 3.5% to 5% by weight.

[0067] Water constitutes, preferably 10 to 99% by weight of the liquid and composition, more preferably 65 to 95% by weight, and more preferably 70 to 90% by weight, based on the total weight of the liquid and composition, and this encompasses the entire range included therein.

[0068] To protect against the growth of potentially harmful microorganisms, preservatives may preferably be incorporated into foam precursor liquids and foam cleansing compositions. Cosmetic chemists are familiar with suitable preservatives and routinely select them to meet preservative load tests and to provide product stability. Conventional preservatives for use include hydantoin derivatives and propionates. Preservatives for use include iodopropynyl butylcarbamate, phenoxyethanol, 1,2-octanediol, hydroxyacetophenone, ethylhexylglycerin, hexylene glycol, methylparaben, propylparaben, imidazolidinyl urea, sodium dehydroacetate, dimethyl-dimethyl (DMDM) hydantoin, and benzyl alcohol, as well as mixtures thereof. Other preservatives include sodium benzoate, sodium dehydroacetate, chlorophenesin, and decylene glycol. Other preservatives include trisodium ethylenediamine disuccinate (EDDS), tetrasodium iminodisuccinate (IDS), sodium gluconate, phytic acid, sodium phytate, tricalcium citrate, trisodium dicarboxymethylalanine, caproyl / capryloyl anhydrous methylglucamide and water, caprylyl glycol, ethyl lauroyl alginate hydrochloride and glycerin, ethyl lauroyl alginate hydrochloride and caprylyl glycol and glycerin, gluconolactone, glyceryl caprylate, lactic acid, p-anidic acid, pentylene glycol, sodium citrate, sorbitan caprylate, butylated hydroxytoluene (BHT), dilauryl thiodipropionate, octadecyl di-t-butyl-4-hydroxyhydrocinnamate, pentaerythrityl tetra-di-t-butylhydrocinnamate, vitamin E, or combinations thereof. The preservative should be selected considering the intended use of the composition and the possibility of incompatibility between the preservative and other components in the emulsion. The preservative is preferably used in an amount ranging from 0.01% to 2% by weight of the total weight of the composition, encompassing the entire range contained therein. Preservative systems containing hydroxyacetophenone alone or hydroxyacetophenone mixed with other preservatives are also preferred.Sodium benzoate is particularly preferred. Other usable preservatives include benzoin gum, soapnut fruit extract, or a combination thereof.

[0069] The cleansing composition may further contain various additives, which are 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 may be present in an amount ranging from about 0.03% to about 5% by weight of the total weight of the liquid and composition, preferably ranging from 0.1% to 3% by weight, encompassing the entire range contained therein. For example, a colorant may be present in an amount of 1 part per five million (ppm) to 15 ppm, for example, in an amount of about 15 ppm.

[0070] Fragrances, fixatives, chelating agents (e.g., EDTA), salts (e.g., NaCl), and exfoliating agents may be included in the liquids and compositions disclosed herein, as they may be. Each of these substances may be present in an amount ranging from about 0.03% to about 5% by weight of the total weight of the liquid and composition, preferably ranging from 0.1% to 3% by weight, encompassing the entire range contained therein. For example, a chelating agent such as disodium EDTA may be present in an amount of 0.05% by weight.

[0071] Other additives that may optionally be present in the cleansing composition include viscosity modifiers. If present, viscosity modifiers may be present in an amount of 0.5% to 2.5% by weight, preferably 0.75% to 1.5% by weight, and more preferably 1.25% to 1.4% by weight. Examples of viscosity modifiers include commonly known viscosity modifiers such as sodium chloride, potassium chloride, or glycol (e.g., polypropylene glycol, e.g., PPG-9).

[0072] The cleansing composition may have a dissolution time of 1 to 5000 seconds, preferably 1 to 10 seconds, and more preferably 1 to 5 seconds. The composition may encompass a dissolution rate suitable for use as a personal wash product or a hair cleansing product.

[0073] Cleansing and / or conditioning of hair can be achieved using the cleansing compositions disclosed herein. Cleansing of skin can be achieved using the cleansing compositions disclosed herein. The cleansing compositions of this application can be used to cleanse the body and / or to condition the hair by applying the cleansing compositions to the hair or skin. The cleansing compositions of this application can be used in cleansing products, which include, but are not limited to, body washes, shampoos and / or conditioners.

[0074] The cleansing compositions disclosed herein can be poured into the hands of the person using them. The cleansing compositions can be dissolved in water to form a rich, dense foam for use on skin and / or hair.

[0075] A method for producing the cleansing compositions disclosed herein is also intended. The method may include forming the cleansing compositions described herein. Forming the cleansing compositions may include charging a cellulose polymer into the first aqueous phase. The aqueous phase is heated to 65°C and a fatty acid is added. At 65°C, the fatty acid is neutralized to form a conjugated ionic soap, then a salt and a buffer are added and the mixture is cooled. During cooling, a syndet is added, and when it approaches room temperature, a fragrance, visual components and an active substance are added. After the composition is formed, the composition can be stirred for a time sufficient to form foam. For example, the stirring time may be 5 minutes or less, for example 4 minutes or less, for example 3 minutes or less. In one embodiment, the cleansing composition can form a measurable amount of foam within 4 seconds.

[0076] The provided examples are intended to facilitate understanding of the cleansing composition. These examples are not intended to limit the scope of the claims. [Examples]

[0077] Example I The cleansing composition was prepared using the methods disclosed herein, with the various components listed in Table 1 in amounts. After preparation, the cleansing composition was evaluated using a Kruss DFA foam analyzer at three different content levels: 1 ml (mL), 3 mL, and 5 mL. The composition contained various mixtures of palmitic acid (PA), lauric acid (LA), mysteric acid (MA), sodium lauryl ether sulfate (SLES), alkyl polyglucoside (APG), cocamidopropyl betaine (CAPB), and triethanolamine (TEA). Water was added until the 55 ml (mL) mark was reached. The added water was 37°C and sourced from tap water. The sample was stirred for 3 minutes, and foam formation was recorded by via closed-camera imaging and light transmittance through the sample. Following the foam evaluation, the pH of the sample was measured using a standard laboratory pH meter. Data from foam formation were evaluated and are shown in Figures 1-3. The volume of the bubbles was measured by the light transmittance passing through the sample, the height of the liquid was recorded, and this was subtracted from the total height (liquid and bubbles). [Table 1]

[0078] As shown in Table 1 and Figure 1, the pH slope in Sample 4 is reversed compared to what was expected. As seen in Figure 1, Samples 1 through 13 all show significant variability in the pH slope. The negative pH slope observed in the unbuffered samples was corrected by adding TEA, and these buffered samples showed significant flattening, even if the pH slope did not reverse. This reflects the expected pH response.

[0079] Furthermore, in Sample 4, the foam initiation time was significantly improved, as shown by the flat slope in Figure 2. Moreover, a remarkable increase in the total foam volume was observed in this sample. This indicates independence from the sample volume and overcomes what is known as the "dosing penalty."

[0080] Example II [Table 2]

[0081] Samples 14 and 15 contained less total surfactant compared to samples 1 through 12. Surprisingly, in samples 14 and 15, the pH of the composition decreased as the amount of surfactant in the composition decreased. This is shown in Figure 1, where the pH of samples 14 and 15 increased in proportion to the volume of the product. In other words, samples 14 and 15 showed less pH drift compared to samples 1 through 13. Samples containing organic buffers undergo some form of pH correction in relation to the amount of surfactant, but in samples 14 and 15, the pH was found to continuously increase even as the total amount of surfactant in the composition decreased. Figure 2 shows that the onset of foaming depends on the amount of surfactant in the composition. The onset of foaming was measured in seconds. In Figure 3, the volume of foam is shown relative to the volume of the product used (where the volume of foam is measured in mL). As can be seen from Figure 3, the volume of foam depends on the amount of surfactant in the composition.

[0082] Except in the cases of examples and comparative examples, or unless expressly indicated otherwise, all figures in this specification indicating the quantities or reaction conditions of materials, the physical properties of materials and / or their uses should be understood to be modified by the word “approximately.” Unless otherwise specified, all quantities are by weight of the final composition.

[0083] When specifying any range of concentration or quantity, it should be noted that any particular upper concentration can be associated with any particular lower concentration or quantity. In this regard, it should be noted that all ranges disclosed herein include endpoints, and these endpoints can be combined independently of each other (for example, including the endpoints and all intermediate values ​​in the range of 5% to 25% by weight, such as "up to 25% by weight" or more specifically, the range of "5% to 20% by weight"). "Combination" includes blends, mixtures, alloys, and reaction products, etc. Furthermore, terms such as "first," "second," etc., in this specification do not indicate order, quantity, or importance, but are used to distinguish one element from another. Terms such as "a," "an," and "the" in this specification do not imply a limitation of quantity, and should be interpreted as encompassing both singular and plural forms unless otherwise indicated herein or unless the context clearly contradicts this interpretation. The suffix "(s)" used herein is intended to include both the singular and plural forms of the term it modifies, thereby encompassing one or more of the term (for example, membrane(s) encompasses one or more membranes). Throughout this specification, references to "one embodiment," "one aspect," "another embodiment," "another aspect," "an embodiment," "an aspect," etc., mean that certain elements (e.g., features, structures, and / or properties) described in relation to that embodiment or aspect are 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 can be combined in any suitable way in various embodiments or aspects.

[0084] All cited patents, patent applications, and other references are incorporated herein by reference in their entirety. However, if any terminology in this application contradicts or is inconsistent with any terminology in any of the incorporated references, the terminology in this application shall prevail over the contradictory terminology in any of the incorporated references. While specific embodiments have been described, alternatives, modifications, variations, improvements, and substantial equivalents that are not currently anticipated or unforeseen may arise for the applicant or those skilled in the art. Accordingly, the attached claims filed or any amended attached claims are intended to encompass all such alternatives, modifications, variations, improvements, and substantial equivalents.

[0085] To avoid misunderstanding, the word "comprising" is intended to mean "including," but not necessarily "consisting of" or "composed of." In other words, the steps, options, or alternatives listed do not need to be exhaustive.

[0086] The disclosures of the present invention found herein should be considered to encompass all aspects found in claims that are complexly dependent on one another, regardless of the fact that claims may be found without complex dependencies or overlaps.

Claims

1. A cleansing composition, 5-12% by weight of C10-C18 fatty acids; 0.25 to 5% by weight of surfactant; and, 0.1 to 3% by weight of organic buffering agent; It includes, Here, the pH of the cleansing composition is 8.0 to 10.

0. Here, the surfactant is selected from anionic surfactants, zwitterionic surfactants, amphoteric surfactants, or combinations thereof. Here, the anionic surfactant is selected from 2-acrylamido-2-methylpropanesulfonic acid, ammonium lauryl sulfate, ammonium perfluorononanoate, potassium lauryl sulfate, sodium alkyl sulfate, sodium laurate, sodium laureth sulfate, sodium lauroyl sarcosinate, sodium stearate, sodium sulfosuccinate ester, or a combination thereof. Here, the zwitterionic surfactant is selected from lauryl betaine, betaine citrate, sodium hydroxymethylglycinate, (carboxymethyl)dimethyl-3-[(1-oxododecyl)amino]propylammonium hydroxide, cocoalkyldimethylbetaine, (carboxymethyl)dimethyloleylammonium hydroxide, cocoamidopropyl betaine, (carboxylatomethyl)dimethyl(octadecyl)ammonium, cocamidopropyl hydroxysultaine, or a combination thereof. Here, the amphoteric surfactant is selected from sodium lauroamphoacetate, sodium cocoamphoacetate, sodium lauroamphoacetate, sodium cocoamphoacetate and / or combinations thereof. Here, the organic buffer is selected from triethanolamine, diethanolamine, sodium triethanolamine phosphate, sodium phosphate, disodium phosphate, trisodium phosphate, or a combination thereof. The cleansing composition.

2. The cleansing composition according to claim 1, wherein the alkyl sulfate sodium is dodecyl sulfate sodium.

3. The cleansing composition according to claim 1, wherein the fatty acid is selected from lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, lanolinic acid, isostearic acid, hydroxystearic acid, or a combination thereof.

4. A cleansing composition according to any one of claims 1 to 3, wherein the fatty acid is neutralized.

5. The cleansing composition according to any one of claims 1 to 4, wherein the molar ratio of the organic buffer to the surfactant is 1:5 to 3:

2.

6. The cleansing composition according to any one of claims 1 to 5, wherein the molar ratio of the organic buffer to the total fatty acids in the cleansing composition is 1.2 to 1.

5.

7. The cleansing composition according to any one of claims 1 to 6, wherein the organic buffer is present in an amount of 0.1 to 0.7% by weight.

8. A method for forming a foaming composition, To form any composition according to claim 1 to 7; and, Stir the composition for 5 minutes or less to form bubbles; The method comprising the above.

9. Use of any composition according to claim 1 to 7 for body washing or hair washing purposes.

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