JP3412874B2 - Detergent composition - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning composition, and more particularly to a hypoallergenic, rich lathering and smooth feel to the skin. A cleaning composition that provides [0002] Phosphate-based surfactants, which are a type of anionic surfactant, are extremely mild surfactants having low irritation to the skin and hair. Therefore, it is expected to be widely used for various cleaning agents. However, phosphate ester-based surfactants generally have low foaming properties, and thus are significantly inferior in sensory evaluation, and are difficult to use as detergent components. [0004] Therefore, there has been a demand for the development of a detergent composition which gives rich foaming while maintaining low irritation to the skin and hair and gives a smooth feel after drying. The inventors of the present invention have conducted intensive studies in view of the above circumstances, and as a result, have found that a detergent containing a phosphate ester, a glycerin monofatty acid ester, and a higher fatty acid salt gives a rich foam at the time of washing. The present invention has been found to provide a smooth feel after drying and not to impair the hypoallergenicity to the skin and hair, and have completed the present invention. That is, the present invention provides the following component (A):
(B) and (C); (A) the following general formula (1): (Wherein, R ¹ represents a straight-chain or branched-chain hydrocarbon group having 8 to 15 carbon atoms, and X ¹ and X ² each represent a hydrogen atom, an alkali metal, ammonium, a basic amino acid or a carbon atom having 2 carbon atoms. (B) glycerin monofatty acid ester, and (C) higher fatty acid having 8 to 22 carbon atoms. It is intended to provide a detergent composition comprising a salt. The phosphate of component (A) and its salt used in the present invention are represented by the above formula (1).
(1) Examples of the linear hydrocarbon group having 8 to 15 carbon atoms represented by R ¹ in the formula include a linear alkyl group or alkenyl group having 8 to 15 carbon atoms, but an octyl group, a nonyl group, Linear alkyl groups such as decyl, undecyl, dodecyl, tridecyl, tetradecyl and pentadecyl are preferred. Further, as a branched chain hydrocarbon group having 8 to 15 carbon atoms, R ² —CH (CH ₃ ) CH ₂ — (where R ² has 5 to 15 carbon atoms)
Which represents 12 straight-chain hydrocarbon groups). Here, examples of the straight-chain hydrocarbon group having 5 to 12 carbon atoms for R ² include a straight-chain alkyl group or alkenyl group having 5 to 12 carbon atoms, but a pentyl group, a hexyl group,
Straight-chain alkyl groups such as heptyl, octyl, nonyl, decyl, undecyl and dodecyl are preferred. In the present invention, in addition to these methyl-branched alkyl phosphates, ethyl-branched, propyl-branched, butyl-branched or pentyl-branched alkyl phosphates may be mixed. Among X ¹ and X ² , the alkali metal includes, for example, lithium, sodium, and potassium; the basic amino acid includes, for example, arginine, lysine, histidine, ornithine; and the alkanolamine includes, for example, triethanolamine , Diethanolamine, monoethanolamine and the like. The amount of the component (A) to be added to the detergent composition of the present invention is preferably 5 to 80% by weight (hereinafter simply referred to as "%"), particularly preferably 10 to 50% in terms of formulation. The component (A) can be used alone or in combination of two or more. The glycerin monofatty acid ester of component (B) used in the present invention has a carbon chain of 8 to 22 carbon atoms.
Is preferably a linear or branched alkyl group, alkenyl group or alkylphenyl group. Preferred specific examples include glycerides of lauric acid, glyceryl myristic acid, glycerides of palmitic acid, glycerides of stearic acid, glycerides of behenic acid, glycerides of oleic acid, glycerides of isostearic acid, glycerides of coconut oil, glycerides of hardened tallow oil, and the like. The amount of the component (B) to be added to the detergent composition of the present invention is from 0.1 to 20%, especially from 1 to 10%, in order to obtain a composition having good foaming and giving a smooth feel. preferable. Component (B) can be used alone or in combination of two or more. The detergent composition of the present invention is blended with a higher fatty acid salt having 8 to 22 carbon atoms (component (C)) in addition to the above components (A) and (B) to thereby provide foaming and foaming properties. And a cleaner composition having a better feel. The component (C) used in the present invention has 8 carbon atoms.
-22 higher fatty acid salts include monobasic fatty acids such as lauric acid, myristic acid, palmitic acid, isostearic acid, and oleic acid, as well as inorganic bases such as sodium and potassium of mixed fatty acids such as coconut oil fatty acids and tallow fatty acids. salt,
Ammonium salt, monoethanolamine salt, diethanolamine salt, triethanolamine salt, 2-amino-2
Alkanolamine salts such as -methylpropanol and 2-amino-2-methylpropanediol; and basic amino acids such as lysine and arginine. The component (C) does not necessarily need to be added to the detergent composition of the present invention as a fatty acid salt, and the fatty acid salt can be formed in the composition by separately adding the above higher fatty acid and a base. Good. The amount of component (C) to be added to the detergent composition of the present invention depends on the amount of components (A) and (B).
When the weight ratio of the component (C) to the sum of the component (A) and the component (B) is 1/20 to 1/1, particularly 1/10 to 1/2, the foaming property is improved and the hypoallergenicity is improved. It is preferable because it does not impair. Component (C) can be used alone or in combination of two or more. In the cleaning composition of the present invention, in addition to the above-mentioned components, other surfactants such as alkyl sulfates and alkyl sulfonates, as long as the effects of the present invention are not impaired.
Polyoxyethylene alkyl sulfate, alkylbenzene sulfonate, N-acyl sarcosine salt, N-acyl-
Anionic surfactants such as N-methyltaurine salt, alpha olefino sulfonate, higher fatty acid ester sulfonate, alkyl ether acetate, polyoxyethylene alkyl ether acetate, fatty acid soap, fatty acid amide, polyoxyethylene Nonionic surfactants such as alkyl ethers, sugar esters, sugar ethers and sugar amides, and amphoteric surfactants such as imidazoline and betaine can be blended. Further, as other additives, components commonly used in detergents can be optionally used in a range not to impair the object of the present invention. For example, humectants such as propylene glycol, sorbitol, glycerin, carboxyvinyl polymer, methylcellulose, ethanol,
Viscosity modifiers such as polyoxyethylene glycol distearate, polyoxyethylene sorbitan tristearate, pearlizing agents, fragrances, dyes, ultraviolet absorbers, antioxidants and the like can also be blended. The cleaning composition of the present invention can be prepared by uniformly stirring and mixing the components according to a conventional method. In addition, a composition such as a paste, an emulsion, or a liquid can be obtained depending on the amounts and proportions of the components. The cleaning composition of the present invention provides rich lathering during washing and a smooth feel after drying while maintaining low irritation to the skin and hair.
It is extremely useful as a shampoo, body shampoo, kitchen cleaner and the like. EXAMPLES The present invention will be described below in more detail with reference to examples, but the present invention is not limited to these examples. Example 1 A cleaning composition having the composition shown in Table 1 below was prepared, and the foaming amount of each of these cleaning compositions was measured by the following method (method for measuring the foaming amount). evaluated. In addition, the usability was evaluated based on the following (method and criteria for evaluating the usability). The results are shown in Table 1 below. In addition, No. The cleaning compositions 3 to 6 are comparative products. (Method of Measuring Foaming Amount) For each detergent composition, a 20-fold diluted aqueous solution was prepared, and 100 ml of this solution was prepared.
(Liquid temperature 40 ° C.) was poured into a graduated measuring cylinder. Next, a stirring blade was placed in the solution, and the volume (ml) of the foam generated 30 seconds after the start of stirring was measured.
The amount of foam was taken. The rotation speed of the stirring blade was 1000 rpm.
And inverted every 5 seconds. (Evaluation criteria) A: Foaming amount 250 ml or more. ：: Foaming amount of 200 ml or more and less than 250 ml. ×: Foaming less than 200 ml. (Evaluation Method and Evaluation Criteria for Feeling of Use) For each of the detergent compositions, panelists of 10 men and women were allowed to clean their bodies, and a sensory evaluation was performed. In the evaluation, an average value was calculated according to the following criteria. When the average value was 4.5 or more, it was very good (（), and when it was 3.5 to 4.4, it was good (○), and 2.5 to 3 Usually the case of .4 (△), 2.4
The following cases were determined to be defective (x). (1) Defoaming during rinsing 5: Defoaming is good. 4: Slightly defoamed. 3: Normal. 2: Bubble running is somewhat poor. 1: Poor foam removal. (2) Smoothness after rinsing 5: No sliminess. 4: Slightly slimy. 3: Normal. 2: Slightly slimy. 1: Get slimy. (3) Bulkiness after drying 5: No bulkiness. 4: It doesn't get a little soft. 3: Normal. 2: Slightly soft. 1: Bulk. (4) Smoothness after drying 5: Smooth. 4: Slightly smooth. 3: Normal. 2: Not easy to do. 1: Not smooth. [Table 1] A) Diamond Doll 115L (manufactured by Mitsubishi Kasei Co., Ltd.) In the formula (1), R ¹ is C ₁₁ : C ₁₃ : C ₁₅ = 47: 31:
22 (weight ratio). Linear: branched = 47:53. The breakdown of branched alkyl phosphates is methyl branch 63
%, Ethyl branch 17%, propyl branch 9%, butyl branch 8%, pentyl branch 3%. b) Dovanol 231 (manufactured by Mitsubishi Yuka Co., Ltd.) In the formula (1), R ¹ is C ₁₂ : C ₁₃ = 43: 57 (weight ratio). Linear: branched = 1: 9. The breakdown of branched alkyl phosphates is methyl branch 40
%, Ethyl branch 16%, propyl branch 15%, butyl branch 19%, pentyl branch 10%. Example 2 A face wash having the following composition was prepared according to a conventional method. Table 3 (Composition) (%) Triethanolamine monolauryl phosphate 27 Glycerin monostearate 3 Triethanolamine laurate 4 Triethanolamine myristate 2 Dibutylhydroxytoluene 0.1 Perfume 0.5 Ethanol 3 Example 3 Purified water balance meter 100 A body shampoo having the following composition was prepared according to a conventional method. (Composition) (%) Potassium phosphate ^a) 20 Glycerin monobehenate 3 Glycerin 5 Potassium laurate 2 Potassium myristate 2 Ethylene glycol distearate 2 Cationized cellulose 0.5 Dibutylhydroxytoluene 0. 1 Fragrance 0.5 Methyl parahydroxybenzoate 0.2 Purified water Balance meter 100 When the body was washed with the detergent composition obtained in the above Examples 2 and 3, any detergent was applied to the skin. It was hypoallergenic, had good lathering and lathering, was not slimy after rinsing, had no dry skin, and had an excellent smooth feeling.

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Claims (1)

(57) [Claims] [Claim 1] The following components (A), (B) and (C); (A) the following general formula (1): (Wherein, R ¹ represents a straight-chain or branched-chain hydrocarbon group having 8 to 15 carbon atoms, and X ¹ and X ² each represent a hydrogen atom, an alkali metal, ammonium, a basic amino acid or a C ² to C 2
(B) glycerol monofatty acid ester, and (C) higher fatty acid salt having 8 to 22 carbon atoms. A cleaning composition comprising: