Gel-type detergent and its manufacturing method

Abstract

The present invention provides a gel-like detergent having excellent transparency, hardness, syneresis properties and usability, and a method for producing the gel-like detergent having excellent production suitability. [Solution] A gel-like detergent containing (A) 0.8% to 4.5% by mass of xyloglucan, (B) 7.5% to 22.5% by mass of sodium lauroylmethylalanine, (C) 22.5% to 37.5% by mass of polyhydric alcohol, and (D) 30% to 35% by mass of water. (C) The polyhydric alcohol contains glycerin, and the glycerin content in the polyhydric alcohol is 80% by mass or more, and the hardness at 25°C measured with a rheometer is 300 or more.

Description

[Technical field]

[0001] The present invention relates to a gel-like detergent and a method for producing the gel-like detergent. [Background technology]

[0002] Gel-type detergents have been known for some time (for example, Patent Documents 1 to 5), and in all of these patent documents, a detergent component is supported on a gel using xyloglucan (tamarind gum).

[0003] Patent Document 6 proposes a gel composition containing 2.0 parts by weight of tamarind gum, 30 parts by weight of glycerin, 25 parts by weight of soap base liquid, 2.0 parts by weight of decyl glucoside, 0.2 parts by weight of etidronic acid, 0.5 parts by weight of phenoxyethanol, 0.01 parts by weight of mannan, 10.0 parts by weight of ethanol, and 30.29 parts by weight of water, and having a pH of less than 10.5 when made into a 1% by weight aqueous solution. Paragraph

[0037] of Patent Document 6 states that "Examples of the soap base liquid include 10 to 25 parts by weight of aqueous solution (1) containing 10% by weight of sodium lauroyl methylalanine (e.g., Kawaken Fine Chemical Co., Ltd., product name: Alanon ALE, concentration = 30% by weight), 35 to 50 parts by weight of aqueous solution (2) containing 15% by weight of potassium soap base (e.g., Mighty Co., Ltd., concentration = 25% by weight), 10 to 30 parts by weight of coconut oil, 5 to 15 parts by weight of potassium hydroxide (48% by weight aqueous solution), 0.01 to 1 part by weight of methylparaben, and 5 to 15 parts by weight of ethanol, which are heated and stirred at 70°C to 90°C, and finally, the pH is adjusted with 0.01 to 1 part by weight of etidronic acid." [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-116451 A [Patent Document 2] JP 2020-100588 A [Patent Document 3] JP 2020-189956 A [Patent Document 4] Patent Publication No. 2021-102600 [Patent Document 5] JP 2018-062525 A [Patent Document 6] JP 2016-216664 A Summary of the Invention [Problem to be solved by the invention]

[0005] The gel-type cleansing agents described in Patent Documents 1 to 5 all contain xyloglucan (tamarind gum), but with the conventional compositions and manufacturing methods, it was difficult to dissolve it uniformly, and syneresis and foaming properties were reduced, and the agent sometimes broke off or became soggy during use.

[0006] In the above Patent Document 6, a soap base liquid containing sodium lauroylmethylalanine is used. The soap base liquid is described as follows: "An aqueous solution containing 10% by weight of sodium lauroylmethylalanine (e.g., Kawaken Fine Chemical Co., Ltd., trade name: Alanon ALE, concentration = 30% by weight) is mixed with 10% by weight of sodium lauroylmethylalanine (Kawaken Fine Chemical Co., Ltd., trade name: Alanon ALE, concentration = 30% by weight)" (see paragraph

[0037] of Patent Document 6). Since this aqueous solution of sodium lauroylmethylalanine contains 30% by weight of sodium lauroylmethylalanine, the content of sodium lauroylmethylalanine in the aqueous solution of sodium lauroylmethylalanine is calculated to be 0.3 parts by weight to 0.75 parts by weight (0.46% by weight to 0.55% by weight). Furthermore, in Examples 1 to 9 of Patent Document 6, 25 parts by weight of a soap base liquid containing sodium lauroylmethylalanine is blended in all cases, and therefore the content of sodium lauroylmethylalanine in the gel compositions of Examples 1 to 9 of Patent Document 6 is 0.12% by weight to 0.14% by weight, which is extremely small compared to the content of sodium lauroylmethylalanine of the present invention, which is 7.5% by weight to 22.5% by weight, and a gel detergent having excellent appearance (transparency), hardness, and foaming properties cannot be provided.

[0007] The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a gel-type detergent excellent in transparency, hardness, syneresis properties and usability, and a method for producing a gel-type detergent excellent in production suitability. [Means for solving the problem]

[0008] The gel-type cleansing agent of the present invention as a means for solving the above-mentioned problems comprises: (A) 0.8% by mass to 4.5% by mass of xyloglucan; (B) 7.5% by mass to 22.5% by mass of sodium lauroylmethylalanine; and (C) a polyhydric alcohol. 42.7% by mass ~ 46.1% by massand (D) 30% by mass to 35% by mass of water, (C) the polyhydric alcohol contains glycerin, the glycerin content in the polyhydric alcohol being 80% by mass or more, and the hardness at 25°C as measured with a rheometer is 300 or more. The gel-like detergent preferably contains (A) 2.1% to 2.3% by mass of xyloglucan and (B) 10.7% to 11.5% by mass of sodium lauroylmethylalanine. The gel cleaner preferably has a pH of 7.5 or less in a 1% by mass aqueous solution. In the gel-like detergent, the (C) polyhydric alcohol preferably further contains propanediol. The gel-type cleaning agent contains propanediol. 7.1% by mass ~ 7.7% by mass It is preferable that: The gel-like cleaner is preferably transparent.

[0009] The method for producing the gel-like detergent of the present invention includes the steps of: A method for producing the gel cleanser of the present invention, comprising the steps of: The method includes a cooling and solidifying step of cooling and solidifying a composition obtained by dissolving 0.5% to 3% by mass of (A') xyloglucan, 5% to 15% by mass of sodium lauroylmethylalanine, (B') 20% to 40% by mass of a polyhydric alcohol, and (D') 40% to 60% by mass of water, and an aging step of aging the gel composition after cooling and solidifying for one week or more in a constant temperature and humidity chamber to volatilize and remove the solvent from the gel composition, wherein the (C') polyhydric alcohol contains glycerin, and the glycerin content in the polyhydric alcohol is 80% by mass or more. In the method for producing a gel detergent, the polyhydric alcohol (C') preferably further contains propanediol. In the method for producing the gel-like detergent, the propanediol content is preferably 5% by mass to 10% by mass. Effect of the Invention

[0010] The present invention has an object to provide a gel-type detergent which can solve the above-mentioned problems in the prior art and achieve the above-mentioned object, and which is excellent in transparency, hardness, syneresis properties and usability, as well as a method for producing a gel-type detergent which is excellent in production suitability. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] (Gel-type cleaner) The gel cleanser of the present invention contains (A) xyloglucan, (B) sodium lauroylmethylalanine, (C) a polyhydric alcohol, and (D) water, and further contains other components as required.

[0012] <(A) Xyloglucan> Xyloglucan is the main component of the seeds of Tamarindus indica, a legume plant that grows mainly in tropical regions. Xyloglucan is a polysaccharide with a molecular weight of several hundred thousand, which has a structure represented by the following general formula (1), in which part of the main chain made of β-1,4 glucan has xylose linked by α-1,6 bonds as side chains, and part of the xylose has galactose linked thereto.

[0013] [ka] In the general formula (1), Glc represents glucose, Xyl represents xylose, Gal represents galactose, and n represents the number of bonds.

[0014] The content of xyloglucan is 0.8% by mass to 4.5% by mass, preferably 1% by mass to 4% by mass, and more preferably 1% by mass to 2% by mass, based on the total amount of the gel-type detergent. If the content of xyloglucan is less than 0.8% by mass, the gel-type detergent becomes soft and is difficult to maintain its shape. On the other hand, if the content of xyloglucan is more than 4.5% by mass, the viscosity of the composition increases and it may not be possible to dissolve uniformly.

[0015] As the xyloglucan, for example, a commercially available xyloglucan (trade name "Glyloid 6C", manufactured by Dainippon Pharmaceutical Co., Ltd.) can be used. When a commercially available product is to be incorporated into the gel-like detergent of the present invention, it is preferable to use one that is as purified as possible. The molecular weight of the xyloglucan to be used is not particularly limited.

[0016] The gel-like detergent of the present invention can contain xyloglucan produced by a known method, for example, the method described in the product catalog of "Glyloid 6C" mentioned above. That is, xyloglucan can be produced by removing foreign matter from tamarind seeds, dissolving it in water, removing impurities to make it transparent, drying it, and finely pulverizing it.

[0017] <(B) Sodium lauroyl methylalanine> Sodium lauroyl methylalanine can impart excellent appearance (transparency), hardness, and foaming properties to a gel-type cleanser. Sodium lauroylmethylalanine is the sodium salt of a condensation product of lauric acid and N-methyl-β-alanine, represented by the following formula.

[0018] [ka]

[0019] The content of sodium acylalanine is 7.5% by mass to 22.5% by mass, preferably 10% by mass to 20% by mass, and more preferably 10% by mass to 15% by mass, based on the total amount of the gel-type detergent. If the content of sodium acylalanine is less than 7.5% by mass, the cleaning power and foaming may be insufficient. On the other hand, if the content of sodium acylalanine exceeds 22.5% by mass, the gel structure of the gel-type detergent may collapse and the gel state may not be maintained.

[0020] <(C) Polyhydric alcohol> The polyhydric alcohol contains glycerin, and the content of glycerin in the polyhydric alcohol is 80% by mass or more. The polyhydric alcohol preferably further contains propanediol. 7.1% by mass ~ 7.7% by mass It is preferable that: As the polyhydric alcohol, in addition to glycerin and propanediol, for example, diglycerin, xylitol, trehalose, etc. can be used. The content of polyhydric alcohol in the total amount of the gel detergent is as follows: The content is 42.7% by mass to 46.1% by mass. Polyhydric alcohol content 42.7 If the content of the polyhydric alcohol is less than 10% by mass, the hardness of the gel-type detergent may be low. 46.1 If the content exceeds 100% by mass, the composition will become thicker and it may become difficult to dissolve the composition uniformly.

[0021] <(D)Water> The water content is 30% to 35% by mass based on the total amount of the gel-type cleaner. If the water content is less than 30% by mass, the cleaner will not dissolve easily and will tend to become sticky. If the water content is more than 35% by mass, syneresis will occur frequently and the cleaner may break or become soggy during use.

[0022] <Other ingredients> The gel cleanser of the present invention may contain other ingredients as long as the ingredients do not impair the object and effect of the present invention. Other ingredients such as anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, moisturizers, water-soluble polymers, thickeners, film-forming agents, UV absorbers, sequestering agents, lower alcohols, oils, sugars, amino acids, organic amines, polymer emulsions, pH adjusters, skin nutrients, vitamins, antioxidants, antioxidant assistants, fragrances, colorants, preservatives, and bactericides can be appropriately blended as necessary to produce the desired dosage form.

[0023] Examples of anionic surfactants include higher alkyl sulfate ester salts (e.g., lauryl sulfate ... sodium lauryl sulfate, potassium lauryl sulfate, etc.); alkyl ether sulfate ester salts (e.g., POE-lauryl sulfate triethanolamine, POE-lauryl sulfate sodium, etc.); N-acyl sarcosinic acid (e.g., sodium lauroyl sarcosinate, etc.); higher fatty acid amide sulfonate salts (e.g., sodium N-myristoyl-N-methyl taurate, sodium coconut oil fatty acid methyl taurate, sodium lauroyl methyl taurate, etc.); phosphate ester salts (sodium POE-oleyl ether phosphate, POE-stearyl ether phosphate, etc.); sulfosuccinate salts (e.g., sodium di-2-ethylhexyl sulfosuccinate, sodium monolauroyl monoethanolamide polyoxyethylene sulfosuccinate, sodium lauryl polypropylene glycol sulfosuccinate, etc.); alkyl benzene sulfonate salts (e.g., sodium linear dodecyl benzene sulfonate, sodium linear dodecyl benzene sulfonate, etc.) triethanolamine, sodium linear dodecylbenzenesulfonate, etc.); higher fatty acid ester sulfate salts (e.g., sodium hydrogenated coconut oil fatty acid glycerin sulfate, etc.); N-acyl glutamates (e.g., monosodium N-lauroyl glutamate, disodium N-stearoyl glutamate, monosodium N-myristoyl-L-glutamate, etc.); acyl glycine salts such as cocoyl glycine salts and lauroyl glycine salts; sulfated oils (e.g., turmeric oil, etc.); acyl alanine salts such as lauroyl methyl alanine salt; POE-alkyl ether carboxylic acids; POE-alkyl allyl ether carboxylates; α-olefin sulfonates; higher fatty acid ester sulfonates; secondary alcohol sulfate salts; higher fatty acid alkylolamide sulfate salts; sodium lauroyl monoethanolamide succinate; ditriethanolamine N-palmitoyl aspartate; and sodium caseinate.

[0024] Examples of cationic surfactants include alkyltrimethylammonium salts (e.g., stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, etc.); alkylpyridinium salts (e.g., cetylpyridinium chloride, etc.); distearyldimethylammonium chloride, dialkyldimethylammonium salts; poly(N,N'-dimethyl-3,5-methylenepiperidinium chloride); alkyl quaternary ammonium salts; alkyldimethylbenzylammonium salts; alkylisoquinolinium salts; dialkylmorphonium salts; POE-alkylamines; alkylamine salts; polyamine fatty acid derivatives; amyl alcohol fatty acid derivatives; benzalkonium chloride; benzethonium chloride, etc.

[0025] Examples of amphoteric surfactants include imidazoline-based amphoteric surfactants (e.g., 2-undecyl-N,N,N-(hydroxyethylcarboxymethyl)-2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, etc.); betaine-based surfactants (e.g., lauryl dimethylaminoacetic acid betaine, alkyl betaine, alkyl amide betaine, alkyl sulfobetaine, etc.).

[0026] Examples of lipophilic nonionic surfactants include sorbitan fatty acid esters (e.g., sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, diglycerol sorbitan penta-2-ethylhexyl acid, diglycerol sorbitan tetra-2-ethylhexyl acid, etc.); glycerin polyglycerin fatty acids (e.g., glycerin monocottonseed oil fatty acid, glycerin monoerucate, glycerin sesquioleate, glycerin monostearate, α,α'-oleic acid pyroglutamic acid, glycerin monostearate malic acid, etc.); propylene glycol fatty acid esters (e.g., propylene glycol monostearate, etc.); hydrogenated castor oil derivatives; and glycerin alkyl ethers.

[0027] Examples of hydrophilic nonionic surfactants include POE-sorbitan fatty acid esters (e.g., POE-sorbitan monooleate, POE-sorbitan monostearate, POE-sorbitan monooleate, POE-sorbitan tetraoleate, etc.); POE-sorbitol fatty acid esters (e.g., POE-sorbitol monolaurate, POE-sorbitol monooleate, POE-sorbitol pentaoleate, POE-sorbitol monostearate, etc.); POE-glycerin fatty acid esters (e.g., POE-glycerin monostearate, POE-monooleates such as POE-glycerol monoisostearate, POE-glycerol triisostearate, etc.; POE-fatty acid esters (e.g., POE-distearate, POE-monodioleate, ethylene glycol distearate, etc.); POE-alkyl ethers (e.g., POE-lauryl ether, POE-oleyl ether, POE-stearyl ether, POE-behenyl ether, POE-2-octyldodecyl ether, POE-cholestanol ether, etc.); Pluronics (registered trademark); POE·POP- Alkyl ethers (e.g., POE·POP-cetyl ether, POE·POP-2-decyltetradecyl ether, POE·POP-monobutyl ether, POE·POP-hydrogenated lanolin, POE·POP-glycerin ether, etc.); tetraPOE·tetraPOP-ethylenediamine condensates (e.g., Tetronic, etc.); POE-castor oil hydrogenated castor oil derivatives (e.g., POE-castor oil, POE-hydrogenated castor oil, POE-hydrogenated castor oil monoisostearate, POE-hydrogenated castor oil triisostearate, POE-hydrogenated castor oil monopyrogulant, tamic acid monoisostearate diester, POE-hydrogenated castor oil maleic acid, etc.); POE-beeswax and lanolin derivatives (e.g., POE-sorbitol beeswax, etc.); alkanolamides (e.g., coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide, cocamide methyl monoethanolamide, etc.); POE-propylene glycol fatty acid esters; POE-alkylamines; POE-fatty acid amides; diethylene glycol laurate; sucrose fatty acid esters; alkyl ethoxydimethylamine oxides;Trioleyl phosphate, etc.;

[0028] Examples of moisturizing agents include polyethylene glycol, propylene glycol, dipropylene glycol, glycerin, 1,3-butylene glycol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, cholesteryl-12-hydroxystearate, sodium lactate, bile salts, dl-pyrrolidone carboxylates, alkylene oxide derivatives, short-chain soluble collagen, diglycerin (EO)PO adducts, Rosa rugosa extract, Achillea millefolium extract, and Melilot extract.

[0029] Examples of natural water-soluble polymers include plant-based polymers (e.g., gum arabic, tragacanth gum, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seed, algae colloids (cassou extract), starch (rice, corn, potato, wheat), glycyrrhizic acid); microbial polymers (e.g., xanthan gum, dextran, succinoglucan, pullulan, etc.); and animal-based polymers (e.g., collagen, casein, albumin, gelatin, etc.).

[0030] Examples of semi-synthetic water-soluble polymers include starch-based polymers (e.g., carboxymethyl starch, methylhydroxypropyl starch, etc.); cellulose-based polymers (methyl cellulose, ethyl cellulose, methylhydroxypropyl cellulose, hydroxyethyl cellulose, sodium cellulose sulfate, hydroxypropyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, crystalline cellulose, cellulose powder, etc.); alginic acid-based polymers (e.g., sodium alginate, propylene glycol alginate, etc.).

[0031] Examples of synthetic water-soluble polymers include vinyl polymers (e.g., polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, carboxyvinyl polymer, etc.); polyoxyethylene polymers (e.g., polyethylene glycol 20,000, 40,000, 60,0000 polyoxyethylene polyoxypropylene copolymers, highly polymerized polyethylene glycol, etc.); acrylic polymers (e.g., sodium polyacrylate, polyethyl acrylate, polyacrylamide, etc.); polyethyleneimine; cationic polymers, etc.

[0032] Examples of thickening agents include gum arabic, carrageenan, karaya gum, tragacanth gum, carob gum, quince seed, casein, dextrin, gelatin, sodium pectinate, sodium alginate, methylcellulose, ethylcellulose, CMC, hydroxyethylcellulose, hydroxypropylcellulose, PVA, PVM, PVP, sodium polyacrylate, carboxyvinyl polymer, locust bean gum, guar gum, tamarind gum, dialkyldimethylammonium cellulose sulfate, xanthan gum, magnesium aluminum silicate, bentonite, hectorite, Al magnesium silicate (veegum), laponite, and anhydrous silicic acid.

[0033] Examples of the ultraviolet absorber include benzoic acid-based ultraviolet absorbers (e.g., para-aminobenzoic acid (hereinafter, abbreviated as PABA), PABA monoglycerin ester, N,N-dipropoxy PABA ethyl ester, N,N-diethoxy PABA ethyl ester, N,N-dimethyl PABA ethyl ester, N,N-dimethyl PABA butyl ester, N,N-dimethyl PABA ethyl ester, etc.); anthranilic acid-based ultraviolet absorbers (e.g., homomenthyl-N-acetylanthranilate, etc.); salicylic acid-based ultraviolet absorbers (e.g., amyl salicylate, , menthyl salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, p-isopropanol phenyl salicylate, etc.); cinnamic acid-based ultraviolet absorbers (e.g., octyl methoxycinnamate, ethyl-4-isopropyl cinnamate, methyl-2,5-diisopropyl cinnamate, ethyl-2,4-diisopropyl cinnamate, methyl-2,4-diisopropyl cinnamate, propyl-p-methoxycinnamate, isopropyl-p-methoxycinnamate, isoamyl-p-methoxycinnamate, 2-Ethoxyethyl-p-methoxycinnamate, octyl-p-methoxycinnamate (2-ethylhexyl-p-methoxycinnamate), 2-ethoxyethyl-p-methoxycinnamate, cyclohexyl-p-methoxycinnamate, ethyl-α-cyano-β-phenylcinnamate, 2-ethylhexyl-α-cyano-β-phenylcinnamate, glyceryl mono-2-ethylhexanoyl-di-paramethoxycinnamate, etc.; benzophenone-based ultraviolet absorbers (e.g., 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzof benzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenyl-benzophenone-2-carboxylate, 2-hydroxy-4-n-octoxybenzophenone, 4-hydroxy-3-carboxybenzophenone, etc.);3-(4'-methylbenzylidene)-d,l-camphor, 3-benzylidene-d,l-camphor; 2-phenyl-5-methylbenzoxazole; 2,2'-hydroxy-5-methylphenylbenzotriazole; 2-(2'-hydroxy-5'-t-octylphenyl)benzotriazole; 2-(2'-hydroxy-5'-methylphenylbenzotriazole; dibenzalazine; dianisoylmethane; 4-methoxy-4'-t-butyldibenzoylmethane; 5-(3,3-dimethyl-2-norbornylidene)-3-pentan-2-one, dimorpholinopyridazino; 2-ethylhexyl-2-cyano-3,3-diphenylacrylate; 2,4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-(1,3,5)-triazine, and the like.

[0034] Examples of sequestering agents include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, disodium edetate, trisodium edetate, tetrasodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid, and trisodium ethylenediaminehydroxyethyltriacetate.

[0035] Examples of the lower alcohol include ethanol, propanol, isopropanol, isobutyl alcohol, and t-butyl alcohol.

[0036] Examples of monosaccharides include trioses (e.g., D-glyceryl aldehyde, dihydroxyacetone, etc.); tetraoses (e.g., D-erythrose, D-erythrulose, D-threose, erythritol, etc.); pentoses (e.g., L-arabinose, D-xylose, L-lyxose, D-arabinose, D-ribose, D-ribulose, D-xylulose, L-xylulose, etc.); hexoses (e.g., D-glucose, D-talose, D-busicose, D-galactose, D-fructose, L-galactose, L- mannose, D-tagatose, etc.); heptoses (e.g., aldoheptose, heptose, etc.); octose (e.g., octose, etc.); deoxysugars (e.g., 2-deoxy-D-ribose, 6-deoxy-L-galactose, 6-deoxy-L-mannose, etc.); aminosugars (e.g., D-glucosamine, D-galactosamine, sialic acid, aminouronic acid, muramic acid, etc.); uronic acids (e.g., D-glucuronic acid, D-mannuronic acid, L-guluronic acid, D-galacturonic acid, L-iduronic acid, etc.).

[0037] Examples of oligosaccharides include sucrose, gunthianose, umbelliferose, lactose, planteose, isolichinoses, α,α-trehalose, raffinose, lychinoses, umbilicin, stachyose, verbascoses, and the like.

[0038] Examples of polysaccharides include cellulose, quince seed, chondroitin sulfate, starch, galactan, dermatan sulfate, glycogen, gum arabic, heparan sulfate, hyaluronic acid, tragacanth gum, keratan sulfate, chondroitin, mucoitin sulfate, guar gum, dextran, keratosulfate, locust bean gum, succinoglucan, and caronic acid.

[0039] Examples of the amino acid include neutral amino acids (e.g., threonine, cysteine, etc.), basic amino acids (e.g., hydroxylysine, etc.), etc. Examples of the amino acid derivatives include sodium acyl sarcosine (sodium lauroyl sarcosine), acyl glutamate, sodium acyl β-alanine, glutathione, pyrrolidone carboxylic acid, etc.

[0040] Examples of the organic amine include monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, and 2-amino-2-methyl-1-propanol. Examples of polymer emulsions include acrylic resin emulsions, polyethyl acrylate emulsions, acrylic resin liquids, polyacrylic alkyl ester emulsions, polyvinyl acetate resin emulsions, and natural rubber latex.

[0041] Examples of pH adjusters include buffers such as citric acid, lactic acid-sodium lactate, citric acid-sodium citrate, and succinic acid-sodium succinate. Examples of vitamins include vitamin A, B1, B2, B6, C, E or derivatives thereof, pantothenic acid or derivatives thereof, and biotin.

[0042] Examples of the antioxidant include tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, and gallic acid esters.

[0043] Examples of the antioxidant aid include phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, cephalin, hexametaphosphate, phytic acid, and ethylenediaminetetraacetic acid.

[0044] Other possible ingredients include, for example, preservatives (ethylparaben, butylparaben, chlorphenesin, phenoxyethanol, etc.); disinfectants (for example, isopropylmethylphenol, benzalkonium chloride, benzethonium chloride, chlorhexidine gluconate, etc.); anti-inflammatory agents (for example, glycyrrhizic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, zinc oxide, allantoin, etc.); whitening agents (for example, placenta extract, saxifrage extract, arbutin, etc.); Seed extracts (e.g., Phellodendron bark, Coptis japonica, Lithospermum root, Peony root, Swertia japonica, Birch, Sage, Loquat, Carrot, Aloe, Mallow, Iris, Grape, Coix seed, Loofah, Lily, Saffron, Cnidium rhizome, Angelica acutiloba, Hypericum perforatum, Ononis, Garlic, Capsicum annuum, Tangerine, Angelica acutiloba, Seaweed, etc.), activators (e.g., Royal jelly, photosensitizers, cholesterol derivatives, etc.); Blood circulation promoters (e.g., Nonyl acid valenylamide, Nicotinic acid benzyl ester, Nicotinic acid β-butoxy ethyl esters, capsaicin, zingerone, cantharides tincture, ichthammol, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cyclandelate, cinnarizine, tolazoline, acetylcholine, verapamil, cepharanthine, γ-oryzanol, etc.); anti-inflammatory agents (e.g., tranexamic acid, thiotaurine, hypotaurine, etc.); disodium edetate, trisodium edetate, sodium citrate, sodium polyphosphate, methaline Examples of such agents include metal sequestering agents such as sodium acetate, gluconic acid, and malic acid; caffeine, tannin, verapamil, tranexamic acid or its derivatives, and various herbal extracts such as licorice, quince, and Japanese anemone; medicines such as tocopherol acetate; whitening agents such as vitamin C, magnesium ascorbyl phosphate, ascorbyl glucoside, arbutin, and kojic acid; amino acids or derivatives thereof such as arginine and lysine; and sugars such as fructose, mannose, erythritol, trehalose, and xylitol.

[0045] The gel-like detergent of the present invention has a hardness at 25° C. as measured with a rheometer of 300 or more, preferably from 300 to 600, and more preferably from 300 to 500. When the hardness at 25° C. as measured with a rheometer is 300 or more, the gel-like detergent has sufficient hardness. The hardness at 25° C. as measured with a rheometer can be measured, for example, using a rheometer equipped with a needle having a diameter of 2 mm under conditions of 25° C., a penetration speed of 2 cm / min, and a penetration distance of 10 mm.

[0046] From the viewpoints of skin irritation and foaming properties, the gel cleanser of the present invention preferably has a pH of 7.5 or less, more preferably 6.0 to 7.5, in a 1% by mass aqueous solution. The pH of a 1% by mass aqueous solution is the pH value measured with a pH meter for a 1% by mass aqueous solution in which the gel detergent and water are dissolved in a ratio of 1:99. The gel-type detergent of the present invention is preferably transparent. The appearance (transparency) of the gel-type detergent can be evaluated by visual observation.

[0047] (Method of manufacturing gel-type detergent) The method for producing a gel-type cleansing agent of the present invention includes a cooling and solidifying step of cooling and solidifying a composition obtained by dissolving 0.5% by mass to 3% by mass of (A') xyloglucan, 5% by mass to 15% by mass of sodium lauroylmethylalanine, (B') 20% by mass to 40% by mass of a polyhydric alcohol, and (D') 40% by mass to 60% by mass of water, and an aging step of aging the gel composition after cooling and solidifying for one week or more in a constant temperature and humidity chamber to volatilize and remove the solvent from the gel composition, and may further include other steps as necessary.

[0048] The manufacturing method of the gel-type cleaner of the present invention has the advantages of being able to uniformly dissolve ingredients that are difficult to mix using conventional manufacturing methods because they contain large amounts of solvents such as water and polyhydric alcohols during production, and of allowing the water and other solvents to evaporate appropriately through the maturation process, resulting in a gel-type cleaner that is high in hardness, is less susceptible to syneresis, and has excellent transparency and usability.

[0049] The amount of xyloglucan in the preparation is preferably 0.5% to 3% by mass since it will form a gel, and more preferably 1% to 2% by mass. If the amount of xyloglucan is less than 0.5% by mass, it may be undesirable since the cleanser will not gel. On the other hand, if the amount of xyloglucan exceeds 3% by mass, it may be undesirable since the solubility of the gel cleanser will decrease.

[0050] The amount of acylalanine sodium in the composition during production is preferably 5% by mass to 15% by mass. If the amount of acylalanine sodium is less than 5% by mass, it may be undesirable due to poor cleaning properties. On the other hand, if the amount of acylalanine sodium exceeds 15% by mass, it may be undesirable from the viewpoints of compatibility with other components and suitability for production.

[0051] The (C') polyhydric alcohol contains glycerin, and the content of glycerin in the polyhydric alcohol is 80 mass % or more. Since 40% by mass or more of a solvent (water) is required during production, the total amount of glycerin and propanediol is preferably 20% by mass to 40% by mass in the composition from the viewpoint of manufacturability.

[0052] The amount of water blended during production is 40% by mass to 60% by mass of the composition. Water evaporates during the aging process, and it is preferable that the total amount of water after aging is 30% by mass to 35% by mass of the composition.

[0053] The method for producing the gel-like detergent of the present invention utilizes a framing method in which various components are uniformly dissolved in solvents such as water and alcohol during production, cooled and solidified, and then aged to volatilize the solvent such as water. Specifically, water, polyhydric alcohols, etc. are charged into a production kettle and heated to dissolve, and then xyloglucan is added and stirred to dissolve. Next, a surfactant is added and mixed uniformly, and the mixture is cooled. Since a relatively large amount of solvent (water) is used in the charged components, the mixture is then cooled and then aged in a temperature-constant humidity chamber for at least one week, preferably one week to three months, and more preferably one month to three months, to remove the solvent by evaporation, a so-called aging step.

[0054] The method for producing a gel detergent of the present invention has the advantage that, by subjecting an unaged gel composition to a step of maturing, a gel detergent having higher hardness and less susceptible to syneresis can be obtained. EXAMPLES

[0055] Examples of the present invention will be described below, but the present invention is not limited to these examples.

[0056] In the following examples, the method for calculating the mass of each component after aging was to first measure the total weight of the composition after aging, and since the components other than water, which is a volatile solvent, are not volatile or have extremely low volatility, the weight loss due to aging was considered to be the volatile content of water, and was calculated. Note that in the following examples, evaluations were performed by the following methods.

[0057] (1) Appearance (transparency) The appearance (transparency) of the gel composition 24 hours after preparation and before the aging step, and the gel-like cleaning agent after the aging step, at room temperature (25° C.) was visually observed and evaluated according to the following evaluation criteria. [Evaluation Criteria] 〇:Transparent 〇△: Slightly cloudy △: Translucent ×: Opaque -:Liquefaction

[0058] (2)Hardness The hardness of the gel composition 24 hours after preparation before the aging process and the gel-like detergent after the aging process were measured using a rheometer (CR-100, manufactured by Sun Scientific Co., Ltd.) equipped with a needle with a diameter of 2 mm at 25°C, a penetration speed of 2 cm / min, and a penetration distance of 10 mm. [Evaluation criteria for hardness of gel composition before aging process] 〇:50 or more and 150 or less ○△: 10 or more and less than 50 △: 1 or more but less than 10 ×:0 [Evaluation criteria for hardness of gel-type detergent at the end of the maturation process] 〇: 300 or more ○△: 100 or more and less than 300 △: 1 or more but less than 100 ×:0

[0059] (3) Foaming property 400 ml of a 2% by mass aqueous solution of the gel-type detergent was stirred at 25° C. and a maximum stirring speed of 4,300 rpm for 1 minute, after which the liquid volume (ml) was determined and the foaming ability was evaluated according to the following evaluation criteria. [Evaluation Criteria] 〇: More than 2,000ml 〇△: 1,500ml or more and 2,000ml or less △: 1,000ml or more but less than 1,500ml ×: Less than 1,000ml

[0060] (4) Syneresis The gel-like detergent was cut into cubic test pieces with sides of approximately 2 cm, the test pieces were sealed in screw tubes and left to stand for one week in an incubator at 25°C. The test pieces were then removed and the syneresis rate was calculated from the change in weight before and after leaving it for one week, and the syneresis was evaluated based on the following evaluation criteria. [Evaluation Criteria] ◎: 0.1% or less 〇: More than 0.1% but less than 1% 〇△: More than 1% but less than 5% △: More than 5% but less than 10% ×: More than 10%

[0061] (5) Manufacturing suitability (viscosity) The gel-type detergent was evaluated for manufacturability (viscosity) during production according to the following criteria. [Evaluation Criteria] 〇: No problem 〇△: Slightly thickened △: Viscosity increased ×: Not manufactured

[0062] (6) Usability The gel-type cleaner was applied to both hands by wetting them with 40°C warm water, swirling them around in both palms 10 times, and then lathering the cleaner before use. The cleaner was then checked for any tearing, soggyness, dissolving, stickiness, etc. during use, and its usability was evaluated based on the following evaluation criteria. [Evaluation Criteria] 〇: No problem △: Somewhat problematic (somewhat torn apart, slightly soggy, little melting, slightly sticky) ×: Problematic (tears, soggy, little melting, sticky)

[0063] (Test Examples 1-1 to 1-10) A gel composition and a gel-like detergent before the aging process were produced using xyloglucan (tamarind gum), and an anionic surfactant suitable in terms of transparency, foaming property, and hardness was investigated. The compositions shown in Tables 1-1 and 1-2 were prepared by adding water, polyhydric alcohols, etc. to a manufacturing kettle, dissolving them by heating, then adding xyloglucan and dissolving them by stirring. Thereafter, surfactants, etc. were added, mixed uniformly, and cooled (cooling and solidification process). Since a relatively large amount of water was used as a solvent in the charged components, after cooling, the mixture was aged for one to two months in a constant temperature and humidity chamber to remove the solvent by evaporation (aging process) to obtain a gel-like detergent. Next, the appearance (transparency), hardness, and foamability were evaluated before and after the aging process. The results are shown in Tables 1-1 and 1-2.

[0064] [Table 1-1]

[0065] [Table 1-2]

[0066] From Tables 1-1 and 1-2, it can be seen that sodium lauroylmethylalanine (Test Example 1-4) was excellent among various anionic surfactants. In Test Examples 1-2, 1-9, and 1-10 (containing sodium methyl cocoyl taurate, potassium cocoyl glycine, and sodium cocoyl glycine, respectively), which showed good results in terms of appearance (transparency) and foaming properties at the time of production, there was a tendency for them to become cloudy after aging. In addition, in the case of sodium lauryl glycol carboxylate (Test Example 1-1), although there was no problem with transparency, sufficient hardness was not obtained during production and after aging. From the above, it is considered that sodium lauroylmethylalanine is suitable from the viewpoints of appearance (transparency), hardness, and foaming property.

[0067] (Test Examples 2-1 to 2-27) The gelation using tamarind gum has different effects on manufacturing suitability (viscosity), hardness, syneresis, and appearance (transparency) depending on the humectant used, so humectants such as polyhydric alcohols were examined. The compositions shown in Tables 2-1 to 2-5 were prepared by adding water, polyhydric alcohols, etc. to a manufacturing kettle and dissolving them by heating, then adding xyloglucan and stirring to dissolve. Thereafter, a surfactant, etc. were added, mixed uniformly, and cooled (cooling and solidification process). Since a relatively large amount of water was used as a solvent in the charged components, after cooling, the mixture was aged in a temperature- and humidity-controlled room for one to two months to remove the solvent by evaporation (aging process), to obtain a gel-like detergent. Next, the appearance (transparency), hardness, manufacturability (viscosity), and syneresis were evaluated before and after the aging process. The results are shown in Tables 2-1 to 2-5.

[0068] [Table 2-1]

[0069] [Table 2-2]

[0070] [Table 2-3]

[0071] [Table 2-4]

[0072] [Table 2-5]

[0073] As can be seen from Tables 2-1 to 2-5, in Test Examples 2-1 to 2-9 using 1,3-butylene glycol, propylene glycol, and propanediol, solidification occurred at a blending amount of about 10 mass %, and the hardness tended to increase as the blending amount increased. On the other hand, the appearance is translucent to opaque, and syneresis is also observed (among the above three raw materials, it was found that propanediol tends to have good transparency and syneresis). Test Examples 2-10 to 2-27, which used glycerin, diglycerin, trehalose, xylitol, sorbitol, and sucrose, required 20% by mass to solidify (sucrose was 30% by mass or more), and tended to have lower hardness than 1,3-butylene glycol, propylene glycol, and propanediol, but had little syneresis and good transparency. Among these, Test Examples 2-11 to 2-12, which contained 20% by mass or more of glycerin, were good in terms of hardness, syneresis, and appearance.

[0074] (Test Examples 3-1 to 3-6) The optimum blending amounts of glycerin and propanediol and the blending ratio (ratio) of the two were investigated. The compositions shown in Tables 3-1 and 3-2 were prepared by adding water, polyhydric alcohols, etc. to a manufacturing kettle and dissolving them by heating, then adding xyloglucan and stirring to dissolve. Thereafter, a surfactant, etc. were added, mixed uniformly, and cooled (cooling and solidification process). Since a relatively large amount of water was used as a solvent in the charged components, after cooling, the mixture was aged in a temperature- and humidity-controlled room for one to two months to remove the solvent by evaporation (aging process), to obtain a gel-like detergent. Next, the appearance (transparency), hardness, manufacturability, and syneresis were evaluated before and after the aging process, and the total amount of glycerin and propanediol and the percentage of glycerin were calculated. The results are shown in Tables 3-1 and 3-2.

[0075] [Table 3-1]

[0076] [Table 3-2]

[0077] As seen from Tables 3-1 and 3-2, Test Example 3-2 requires 40% by mass or more of a solvent (water) during production because mixing 50% by mass of glycerin increases viscosity and makes production difficult. From the above, from the viewpoint of manufacturability, it is considered that the suitable range of glycerin is 20% by mass to 40% by mass. In Test Examples 3-3 to 3-6, an increase in hardness was confirmed by blending propanediol. However, in Test Example 3-3, when 10% by mass or more of propanediol was blended, the appearance tended to become opaque, similar to when propanediol was blended alone. Based on the above, in order to obtain a gel-like cleansing agent that is transparent and has a desired hardness by blending glycerin and propanediol, it is preferable that the mass of glycerin in the total amount of glycerin and propanediol is 80 mass% or more.

[0078] Next, we investigated the optimum water content for the gel-type detergent after the aging process. The results are shown in Table 4. In addition, (Aging 1) to (Aging 5) in Test Example 3-4 in Table 4 indicate that the aging periods are different (the aging periods are 1 week to 3 months, and the aging periods differ by at least 1 day between each of the aging steps of (Aging 1) to (Aging 5)), and the order of the aging times is (Aging 1)<(Aging 2)<(Aging 3)<(Aging 4)<(Aging 5).

[0079] [Table 4]

[0080] From Table 4, it was confirmed that the aging process increased the hardness and decreased the syneresis. In addition, in Test Example 3-4 (Aging 1), which was aged until the moisture content was 40 mass% or more, tearing and soggy were confirmed when used, and slight syneresis was also confirmed. Furthermore, in Test Example 3-4 (Aging 4) to Test Example 3-4 (Aging 5), which were aged until the moisture content was 25 mass % or less, there was little loss due to dissolution, and stickiness was observed. Moreover, Test Example 3-4 (Aging 2) to Test Example 3-4 (Aging 3), which were aged until the moisture content reached 30% by mass to 35% by mass, were excellent in appearance (transparency), hardness, syneresis, and usability. From the above, it was found that in order to produce a gel-type cleanser that does not tear, become soggy, or sticky during use, and that does not dissolve or synerase appropriately, it is best to mature the composition until the water content is 30% to 35% by mass.

[0081] (Test Examples 4-1 to 4-2) Next, the necessity of the aging process was examined. Test Examples 4-1 and 4-2 were prepared by heating and dissolving each component with the same amount as Test Examples 3-4 (Aging 2) and (Aging 3), which were particularly excellent in appearance (transparency), hardness, syneresis, and usability from Table 4, and then cooling the components without carrying out the aging process. The results are shown in Table 5.

[0082] [Table 5]

[0083] As shown in Table 5, in Test Examples 4-1 and 4-2, the components of Test Examples 3-4 (Aging 2) and 3-4 (Aging 3) were dissolved by heating and stirring, respectively, with the same composition (same composition after the aging process), and then cooled to prepare a gel-like detergent without carrying out the aging process. However, in both Test Examples 4-1 and 4-2, the water content was low and the viscosity was too high, so a gel-like detergent could not be prepared (all evaluation items were unmeasurable). As mentioned above, from the viewpoint of manufacturability, the amount of water blended during production is preferably 40% to 60% by mass of the composition.

[0084] From the above, it has been found that, according to the gel-type detergent and manufacturing method of the present invention, the amount of water blended during manufacturing is 40% to 60% by mass of the composition, and by heating each component, stirring and dissolving it, cooling, and then carrying out an aging process, a gel-type detergent with excellent appearance (transparency), hardness, syneresis properties, and usability can be obtained.

Claims

1. (A) 0.8% by mass to 4.5% by mass of xyloglucan; (B) 7.5% by mass to 22.5% by mass of sodium lauroyl methylalanine; (C) 42.7% by mass to 46.1% by mass of a polyhydric alcohol; (D) 30% by mass to 35% by mass of water; Contains The (C) polyhydric alcohol contains glycerin, and the content of glycerin in the polyhydric alcohol is 80 mass% or more, A gel-like cleaner characterized in that the hardness at 25°C as measured by a rheometer is 300 or more.

2. (A) 2.1% by mass to 2.3% by mass of xyloglucan, (B) 10.7% by mass to 11.5% by mass of sodium lauroyl methylalanine; The gel-like cleansing agent according to claim 1, comprising:

3. The gel-like cleaner according to claim 1 , wherein a pH of a 1% by mass aqueous solution of the gel-like cleaner is 7.5 or less.

4. 2. The gel cleansing agent according to claim 1, wherein the polyhydric alcohol (C) further comprises propanediol.

5. The gel-like cleaner according to claim 4, wherein the propanediol content is 7.1% by mass to 7.7% by mass.

6. 2. The gel cleanser of claim 1, which is transparent.

7. A method for producing a gel-like cleaning agent according to any one of claims 1 to 6, comprising the steps of: a cooling and solidifying step of cooling and solidifying a composition obtained by dissolving 0.5% by mass to 3% by mass of (A') xyloglucan, 5% by mass to 15% by mass of (B') sodium lauroylmethylalanine, 20% by mass to 40% by mass of (C') polyhydric alcohol, and 40% by mass to 60% by mass of (D') water; and an aging step of aging the gel composition after cooling and solidifying in a temperature and humidity controlled room for one week or more to volatilize and remove the solvent from the gel composition, The method for producing a gel-like detergent, wherein the polyhydric alcohol (C') contains glycerin, and the content of glycerin in the polyhydric alcohol is 80 mass % or more.

8. The method for producing a gel-like detergent according to claim 7, wherein the polyhydric alcohol (C') further contains propanediol.

9. The method for producing a gel-like detergent according to claim 8, wherein the content of the propanediol is 5% by mass to 10% by mass.

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