Cleaning agent for filling foam containers

Abstract

To provide a cleaning agent to be filled into a foamer container which is excellent in the foam quality and the feeling in use and is easy to push out of the container.SOLUTION: A cleaning agent to be filled into a foamer container contains (A) to (C) in the following: (A) an acylamino acid type anionic surfactant; (B) amphoteric surfactants of one or more of imidazolinium type or amidosulfobetaine type; (C) polyoxyethylene fatty acid diester type nonionic surfactant represented by the general formula (1), R1-O-(CH2-CH2-O)n-R2, where R1 and R2 each independently represent a C8-18 acyl group, and n represents an integer from 70 to 100.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a cleanser for filling into a foamer container, such as a pump foamer or a squeeze foamer, which becomes foamy when discharged from the container. [Background technology]

[0002] Skin cleansers are available in various forms, including solid, powder, liquid, cream, and foam. In recent years, foam cleansers have been used for a variety of purposes, such as hand washing, face washing, hair washing, and body washing, due to the convenience of being able to produce high-quality foam simply by pressing a pump or squeezing the container by hand. Foam cleansers are made by passing the cleansing agent through a porous membrane inside a foamer container during dispensing, where it mixes with air to form a foam. Cleansers to be filled into foamer containers must have excellent foam quality (foam volume, foam elasticity, and foam persistence).

[0003] Various approaches have been taken to improve the foam quality of detergents for filling foamer containers. For example, Patent Document 1 describes that the use of water-soluble cellulose derivatives such as hydroxypropylmethylcellulose or hydroxypropylcellulose increases foam elasticity. Patent Document 2 describes that a cationic polymer containing dimethyldiallylammonium chloride as a constituent monomer, such as polyquaternium-6, increases foam viscosity. However, these methods can cause the high molecular weight polymer to clog the porous membrane, resulting in poor discharge from the foamer container. Patent Document 3 proposes a detergent containing N-acyl glutamate, an amphoteric surfactant, and a specific nonionic surfactant, which produces excellent foam volume and quality. However, this detergent has the problem of increasing viscosity when stored at low temperatures, which increases the pump pressure. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-199475 [Patent Document 2] Japanese Patent Application Laid-Open No. 2016-124803 [Patent Document 3] Japanese Patent Application Laid-Open No. 2011-140464 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide a detergent for filling foamer containers, which has excellent foam quality and a good feeling when used, and is easy to squeeze out from the container. [Means for solving the problem]

[0006] The means for solving the problems of the present invention are as follows. 1. A foam container filling detergent containing the following (A) to (C): (A) Acylamino acid type anionic surfactant (B) Amphoteric surfactants that are one or more of imidazolinium type and amidosulfobetaine type (C) A polyoxyethylene fatty acid diester-type nonionic surfactant represented by the following general formula (1): R1-O-(CH2-CH2-O) n -R2(1) (In the formula, R1 and R2 each independently represent an acyl group having 8 to 18 carbon atoms, and n represents an integer of 70 to 100.) 2. A foamer container filling cleaner according to 1., characterized in that the ratio of (C) to the total of (A) to (C) (C / (A+B+C)) is 1% by mass or more and 20% by mass or less. 3. A foamer container filling cleaner according to 1. or 2., characterized in that (B) contains both an imidazolinium type and an amidosulfobetaine type. [Effects of the Invention]

[0007] The detergent for filling foamer containers of the present invention can produce creamy and elastic foam, and furthermore, has little slimy feeling after rinsing, and is excellent in foam quality and feel when used. The detergent for filling foamer containers of the present invention is resistant to clogging of the porous membrane, does not increase in viscosity even at low temperatures, and can be discharged from the container with little force. DETAILED DESCRIPTION OF THE INVENTION

[0008] The foam container filling detergent of the present invention (hereinafter also referred to as detergent) is (A) Acylamino acid type anionic surfactant (B) Amphoteric surfactants that are one or more of imidazolinium type and amidosulfobetaine type (C) A polyoxyethylene fatty acid diester-type nonionic surfactant represented by the following general formula (1): R1-O-(CH2-CH2-O) n -R2(1) (In the formula, R1 and R2 each independently represent an acyl group having 8 to 18 carbon atoms, and n represents an integer of 70 to 100.) Contains:

[0009] Component (A) The acyl group of the acylamino acid type anionic surfactant can be a straight-chain or branched-chain acyl group derived from a saturated or unsaturated fatty acid having 8 to 22 carbon atoms. Examples of fatty acids include caprylic acid, capric acid, lauric acid, myristic acid, stearic acid, palmitic acid, oleic acid, linoleic acid, coconut oil fatty acid, palm fatty acid, palm kernel fatty acid, and hardened beef tallow fatty acid. One or more of these can be used. Examples of the amino acid in the acylamino acid type anionic surfactant include glycine, alanine, valine, leucine, isoleucine, serine, threonine, proline, β-alanine, α-aminobutyric acid, γ-aminobutyric acid, N-methyl-β-alanine, glutamic acid, aspartic acid, etc. One or more of these may be used.

[0010] Suitable acylamino acid type anionic surfactants include acyl glutamates, acyl alanines, acyl aspartates, acyl methyl alanines, and acyl glycines, and these can be used alone or in combination. The salt is not particularly limited, and examples thereof include alkali metal salts such as sodium salts and potassium salts, alkaline earth metal salts such as calcium salts and magnesium salts, inorganic salts such as aluminum salts and zinc salts, and organic salts such as organic amine salts with ammonia, monoethanolamine, diethanolamine, and triethanolamine, and basic amino acids such as arginine and lysine. One or more of these can be used. Among these, alkali metal salts are preferred, and sodium salts or potassium salts are more preferred. The blend amount of component (A) relative to the total amount of the cleanser is preferably from 0.1 to 20% by mass, more preferably from 0.5 to 15% by mass, and even more preferably from 1 to 10% by mass. The proportion of component (A) to the total of components (A) to (C) (A / (A+B+C)) is preferably 30% by mass or more and 70% by mass or less, and more preferably 40% by mass or more and 60% by mass or less.

[0011] (B) Component Examples of imidazolinium-type amphoteric surfactants include sodium caproamphoacetate, sodium lauroamphoacetate, sodium cocoamphoacetate, sodium stearoamphoacetate, sodium isostearoamphoacetate, and sodium palmamphoacetate. One or a mixture of two or more of these may be used. In particular, sodium cocoamphoacetate is preferred from the viewpoint of foam quality.

[0012] Examples of amidosulfobetaine amphoteric surfactants include lauramidopropyl hydroxysultaine, cocamidopropyl hydroxysultaine, and erucamidopropyl hydroxysultaine. One or more of these surfactants can be used alone or in combination. In particular, from the viewpoint of slimy feel, it is preferable to include lauramidopropyl hydroxysultaine. The cleanser of the present invention preferably contains both an imidazolinium type and an amidosulfobetaine type as component (B) in order to achieve both good foam quality and a good feel when used.

[0013] The blend amount of component (B) relative to the total amount of the cleanser is preferably from 0.1 to 20% by mass, more preferably from 0.5 to 15% by mass, and even more preferably from 1 to 10% by mass. The proportion of component (B) relative to the total of components (A) to (C) (B / (A+B+C)) is preferably 30% by mass or more and 70% by mass or less, and more preferably 40% by mass or more and 60% by mass or less. When component (B) contains both an imidazolinium type and an amidosulfobetaine type, the mass ratio thereof (imidazolinium type:amidosulfobetaine type) is preferably 20:80 to 80:20, and more preferably 30:70 to 70:30.

[0014] (C) Component The component (C) is a polyoxyethylene fatty acid diester type nonionic surfactant represented by the following general formula (1). R1-O-(CH2-CH2-O) n -R2(1) (In the formula, R1 and R2 each independently represent an acyl group having 8 to 18 carbon atoms, and n represents an integer of 70 to 100.) The number of carbon atoms in R1 and R2 is preferably 10 or more, and more preferably 12 or more. Examples of component (C) include PEG-75 dilaurate, PEG-75 dimyristate, PEG-75 dioleate, PEG-75 distearate, and PEG-90 diisostearate. One or a mixture of two or more of these can be used.

[0015] The blend amount of component (C) relative to the total amount of the cleanser is preferably from 0.1 to 3% by mass, more preferably from 0.2 to 2.5% by mass, and particularly preferably from 0.3 to 2% by mass. If the amount of component (C) is less than 0.1% by mass, it may be difficult to obtain a highly elastic foam. Conversely, if it exceeds 3% by mass, the extrudability from the foamer container at low temperatures may decrease. The proportion of component (C) relative to the total of components (A) to (C), (C / (A+B+C)), is preferably 1% by mass or more and 20% by mass or less, and more preferably 2% by mass or more and 15% by mass or less. If the proportion of component (C) relative to the total of components (A) to (C) (C / (A+B+C)) is less than 1% by mass, it may be difficult to obtain a highly elastic foam. Conversely, if it exceeds 20% by mass, the extrudability from the foamer container at low temperatures may decrease.

[0016] Other ingredients The cleanser of the present invention may contain any component used in a cleanser other than (A) to (C) as long as it does not adversely affect the effects of the invention. For example, surfactants other than (A) to (C), alcohols, polyhydric alcohols, sugars, sugar alcohols, humectants, thickeners, colorants, excipients, plant extracts, pH adjusters, salts, preservatives, sequestering agents, fragrances, etc. However, the amount of surfactants other than (A) to (C) blended is preferably 25% by mass or less, more preferably 15% by mass or less, of the total amount of surfactants. In addition, other medicinal ingredients and physiologically active ingredients may be added.

[0017] Examples of polyhydric alcohols, sugars, and sugar alcohols include glycerin, diglycerin, 1,3-butylene glycol, propylene glycol, dipropylene glycol, 1,2-pentanediol, glucose, sorbitol, mannose, mannitol, galactose, galactitol, maltose, maltitol, trehalose, glycosyltrehalose, erythrose, erythritol, xylose, xylitol, sucrose, lactose, lactitol, difructose anhydride, methyl gluceth-10, PPG-10 methyl glucose, and glycereth-26.

[0018] Examples of preservatives include methylparaben, ethylparaben, and phenoxyethanol. Examples of the sequestering agent include disodium ethylenediaminetetraacetate, edetic acid, and edetate salts such as sodium edetate. Examples of moisturizing agents include sodium chondroitin sulfate, sodium hyaluronate, hydroxypropyltrimonium hyaluronate, sodium lactate, sodium pyrrolidonecarboxylate, and cyclodextrin. Examples of thickeners include carbomer. Examples of plant extracts include rosemary extract, peach leaf extract, and yuzu fruit extract. Examples of medicinal ingredients include vitamin C compounds such as L-ascorbic acid, L-ascorbic acid phosphate, L-ascorbic acid monopalmitate, L-ascorbic acid dipalmitate, and L-ascorbic acid 2-glucoside; whitening agents such as glutathione and saxifrage extract; skin activators such as royal jelly and beech extract; blood circulation promoters such as capsaicin, zingerone, cantharides tincture, caffeine, tannic acid, and γ-oryzanol; anti-inflammatory agents such as glycyrrhizinic acid derivatives and azulene; lysozyme chloride, allantoin, and amino acids.

[0019] The cleansing agent of the present invention can be filled into a foaming container such as a pump foamer or a squeeze foamer to produce a foam that can be used for various purposes such as hand washing, face washing, hair washing, body washing, and shaving, and can be used not only for humans but also for pets. [Example]

[0020] The components in the composition shown in Table 1 were mixed with stirring to obtain a detergent for filling foamer containers. The prepared cleansers were evaluated according to the following criteria for low-temperature stability, ease of pump operation at 5°C, foam elasticity, and slimy feeling after rinsing. The evaluation results are shown in Table 1.

[0021] <Evaluation method> ·Low temperature stability 50 ml of the prepared cleanser was placed in a 50 ml screw tube (Maruem), and the sample stored at -5°C was visually inspected and evaluated according to the following criteria. ◯: No precipitation occurs for more than one week. ×: Precipitation occurs in less than one week. -Easy to press the pump The prepared cleanser was filled into a three-mesh pump former container (#255-#255-#200) and cooled to 5°C. The pump was then repeatedly pushed 10 times and the results were evaluated according to the following criteria. ◎: Foam can be easily discharged. ○: A slight force is required to eject the foam, but there is no problem in terms of quality. △: A strong force is required to eject the foam, and there is a quality problem. ×: Foam cannot be discharged.

[0022] Foam elasticity A panel of 10 experienced sensory evaluation specialists conducted a sensory evaluation of the foam elasticity according to the following evaluation criteria. Good: 5 points, Fair: 4 points, Average: 3 points, Fair: 2 points, Bad: 1 point The evaluation was based on the average score of 10 people and was based on the following criteria. ◎: Average score is 4.5 points or more 〇: Average score is between 3.5 and 4.5 points △: Average score is between 2.5 and 3.5 points ×: Average score is less than 2.5 points Slimy feeling after rinsing A panel of 10 experienced sensory evaluation specialists conducted a sensory evaluation of the slimy feeling after rinsing using the following evaluation criteria. Good: 5 points, Fair: 4 points, Average: 3 points, Fair: 2 points, Bad: 1 point The evaluation was based on the average score of 10 people and was based on the following criteria. ◎: Average score is 4.5 points or more 〇: Average score is between 3.5 and 4.5 points △: Average score is between 2.5 and 3.5 points ×: Average score is less than 2.5 points

[0023] [Table 1]

[0024] The foamer container filling cleansers of Examples 1 to 7 according to the present invention all had excellent low-temperature stability and ease of pumping at low temperatures, and also had excellent foam elasticity and no slimy feeling after rinsing. In contrast, the foamer container filling cleaners of Comparative Examples 1 to 9 did not provide sufficient performance.

[0025] An example of a prescription is shown below. Formulation example 1: Foam-type facial cleanser (Ingredients) (mass%) Potassium Cocoyl Glutamate 6.00 Sodium Cocoamphoacetate 3.00 Lauramidopropyl Hydroxysultaine 2.00 PEG-75 Dilaurate 0.50 Glycerin 10.00 Sorbitol 10.00 Glycereth-26 1.00 Sodium Hyaluronate 0.01 Allantoin 0.01 Rosemary extract 0.10 Pentylene glycol 1.00 DPG 5.00 Citric acid as needed Sodium citrate as needed water residue

[0026] Formulation example 2: Foam-type facial cleanser Potassium Cocoyl Glutamate 5.00 Sodium Cocoyl Alanine 1.00 Lauramidopropyl Hydroxysultaine 5.00 PEG-75 Dioleate 0.50 Glycerin 10.00 Maltitol 10.00 Glycereth-26 1.00 Sodium Hyaluronate 0.01 Allantoin 0.01 Serine 0.01 Peach Leaf Extract 0.10 Pentylene glycol 1.00 BG 5.00 Citric acid as needed Sodium citrate as needed water residue

[0027] Formulation example 3: Foamer type hair shampoo Sodium Lauroyl Methylalanine 4.00 Sodium Lauroyl Aspartate 1.00 Sodium Cocoyl Alanine 1.00 Sodium Cocoamphoacetate 6.00 PEG-75 Distearate 1.30 Polyglyceryl-10 (eicosanedioic acid / tetradecanedioic acid) 1.00 Behenamidopropyl dimethylamine 0.50 Hyaluronic acid hydroxypropyltrimonium 0.05 Polyquaternium-10 0.01 Dilauramidoglutamide lysine sodium 0.10 Diglycerin 10.00 Trehalose 5.00 Pentylene glycol 1.00 Propanediol 5.00 Glycyrrhizic acid 2K 0.10 Yuzu fruit extract 0.10 Citric acid as needed Sodium citrate as needed water residue

[0028] Formulation example 4: Foamer-type body soap Sodium Lauroyl Aspartate 1.00 Potassium Cocoyl Glutamate 4.00 Sodium Lauroamphoacetate 2.00 Cocamidopropyl Hydroxysultaine 3.00 PEG-75 Dilaurate 1.50 Glycerin 10.00 Glycosyltrehalose 1.00 Methylgluceth-10 3.00 Pentylene glycol 1.00 DPG 5.00 Sodium Hyaluronate 0.01 Citric acid as needed Sodium citrate as needed water residue

[0029] Formulation example 5: Foamer-type hand soap Sodium Cocoyl Alanine 5.00 Lauramidopropyl Hydroxysultaine 5.00 PEG-75 Dilaurate 0.50 Glycerin 10.00 Glycosyltrehalose 1.00 Pentylene glycol 1.00 BG 5.00 Glycyrrhizic acid 2K 0.10 Citric acid as needed Sodium citrate as needed water residue

Claims

1. Contains the following (A) to (C): A foamer container cleaning agent in which the ratio of (C) to the total of (A) to (C) (C / (A+B+C)) is 1% by mass or more and 20% by mass or less. (A) Acylamino acid type anionic surfactant (B) Amphoteric surfactants that are one or more of imidazolinium type and amidosulfobetaine type (C) a polyoxyethylene fatty acid diester-type nonionic surfactant represented by the following general formula (1): R １ -O-(CH ２ -CH ２ -O) ｎ -R ２ (1) (In the formula, R １ and R ２ are each independently an acyl group having 8 to 18 carbon atoms, and n is an integer of 70 to 100.

2. 2. The foamer container filling cleaner according to claim 1, characterized in that (B) contains both an imidazolinium type and an amidosulfobetaine type.

3. A cleaning agent for filling foamer containers as described in claim 1 or 2, characterized in that it contains, relative to the total, 0.1% by mass or more and 20% by mass or less of (A), 0.1% by mass or more and 20% by mass or less of (B), and 0.1% by mass or more and 3% by mass or less of (C).

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