JPH0588919B2 - - Google Patents

Description

[Detailed description of the invention]

INDUSTRIAL APPLICATION FIELD The present invention relates to a cleaning composition that does not cause "sliminess" during cleaning and has good rinsing properties. Conventional technology Cleaning agents such as kitchen detergents, household detergents, shampoos, and body shampoos inevitably come into contact with the skin of hands and other surfaces during cleaning, so cleaning agent compositions that are milder to the skin have been considered. . However, with conventional cleaning agents, the surfactant adsorbs to the skin and hard surfaces, making them feel ``slimy'' and not only does it feel unpleasant to use, but in order to remove that ``slimy'' feeling, large amounts of water are used to remove the ``slimy'' feeling. Since rinsing was required, there were major problems in terms of workability and economy. Problems to be Solved by the Invention The present invention provides a cleaning composition that is mild to the skin, has less adsorption of surfactants to hard surfaces or the skin, and has good rinsability. Structure of the Invention The present invention provides a hard surface cleaning composition, a skin cleaning composition, and a hair cleaning composition (shampoo), which are characterized by containing the following components (a) and (b). be. (a) Sugar ester surfactant consisting of an ester of a C _6-18 fatty acid and a C _5-6 monosaccharide or its monoalkyl ether: 1 to 30% by weight. (b) Alkylamine oxide: 0.5-10% by weight. The sugar ester surfactant of component (a) is a mild surfactant on the skin with little skin irritation.
Obtained from _C6-18 fatty acids or fatty acid derivatives such as esters of these fatty acids and monopentoses, monohexoses or their monoalkyl ethers. Here, fatty acids, whether saturated or unsaturated,
Moreover, it may be a straight chain or may have a branch. Specific examples of such fatty acids include caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, caproleic acid, lauroleic acid, myristoleic acid,
Examples include palmitoleic acid, oleic acid, and methylundecanoic acid. Further, as fatty acid derivatives, fatty acid esters of the above-mentioned fatty acids and lower alcohols are used, and examples thereof include methyl esters, ethyl esters, propyl esters, etc. of the above-mentioned fatty acids. Examples of monopentoses include monopentoses of xylose, arabinose, ribulose, xylulose, and lyxose sugars, as well as monoalkylated products of methylxylose and ethylarabinose sugars. Examples of monohexoses include monohexoses such as glucose, galactose, and fructose, as well as monoalkylated products such as methylglucose and ethylglucose. In the sugar ester surfactant of the present invention, it is not particularly important how many of the hydroxyl groups of the monosaccharide form esters with _C6-12 fatty acid residues, but it is preferable that the surfactants are mainly monoesters. It is desirable that the amount of polyester of ester or higher is 1% by weight or less. The sugar ester surfactant as component (a) is contained in the detergent composition of the present invention in an amount of 1 to 30% by weight, preferably 5 to 30% by weight.
Contains 25% by weight. If this amount is too small, the occurrence of "slimy" cannot be sufficiently prevented, and the rinsing performance deteriorates. On the other hand, even if the amount added is large,
No performance improvement is seen. The sugar ester surfactant as component (a) can be obtained by an appropriate method, but according to the method for producing sugar monofatty acid esters described in JP-A-3-76593, sugar esters mainly composed of monoesters can be industrially advantageously synthesized. Component (b), alkylamine oxide, is a surfactant that is mild to the skin with little skin irritation.
It is represented by the following general formula (). Here, R ₁ ,
R ₂ is an alkyl group or hydroxyalkyl group having 1 to 5 carbon atoms, and R ₃ is an alkyl group having 8 to 20 carbon atoms.

[Formula] R ₃ may be saturated or unsaturated, and may be linear or contain a branched chain. Alkylamine oxides are used in cleaning compositions.
It is blended in an amount of 0.5 to 10% by weight, preferably 2.5 to 5.5% by weight. If this amount is too large, the occurrence of "slimy" cannot be sufficiently prevented and the rinsing performance deteriorates.
On the other hand, if the amount is too small, the cleaning performance will deteriorate. The cleaning composition of the present invention may contain various optional ingredients depending on its use, such as anionic surfactants, nonionic surfactants, cationic surfactants,
Amphoteric surfactants, metal ion sequestrants, hydrotropes, thickeners, bactericidal agents, preservatives, pigments, fragrances, and the like can be blended as appropriate. The cleaning composition of the present invention can be applied as a cleaning agent for various purposes, but in particular, it can be used for applications in which the cleaning composition comes into contact with the skin such as hands, skin, and scalp, and for cleaning dishes, tiles, glass, etc. It is suitable for cleaning hard surfaces, for example, skin cleaners such as shampoo and body shampoo, kitchen detergents, and household detergents for baths and toilets. The formulation of the cleaning composition of the present invention is not particularly limited, but it is suitable as a fluid cleaning composition such as liquid, cream, or gel. Of course, it can also be used as a granular or solid cleaning agent. Effects According to the present invention, (a) a sugar ester surfactant consisting of an ester of a C _6-18 fatty acid and a C _5-6 monosaccharide or its monoalkyl ether and (b) an alkyl amine oxide are used in combination. By doing so, we can prevent the "sliminess" caused by adsorption of surfactants to the skin and hard surfaces, and create cleaning compositions for hard surfaces, skin, or hair that are comfortable to use and have good rinsing properties. Obtainable. Synthesis example: Add 25 ml of tertiary butyl alcohol to a mixture of 5.15 g (27.64 mmol) of glucose and 1.03 g (5.55 mmol) of methyl caprate, and add Candeida
Thermostable lipase from Antarctica (sp-
382 (manufactured by Novo) immobilized on acrylic resin, 10 g of Molecular Sieves 5A was added as a demethanol agent, and the mixture was heated under reflux with stirring for 24 hours to dissolve glucose monocapric acid ester (C ₁₀ glucose). ester) was obtained. Next, take 0.5 ml of the reaction solution into a screw tube, add 2.5 ml of pyridine, and further add 10 μl of n-tetradecane as an internal standard substance, mix well, separate, and add 1 ml of the reaction solution to 1 ml of acetic anhydride as an acetylating agent. was added and reacted at 60°C for 30 minutes. When 1 μl of the reaction solution was analyzed by gas chromatography, glucose monocapric acid ester was obtained with a purity of 98% and a production rate of 70%, and the content of polyesters higher than triester was 1% by weight or less. . Hereinafter, the sugar esters used in the examples are obtained in the same manner. Examples Example 1 A cleaning composition having the composition shown in Table 1 below was prepared, and the "sliminess" was evaluated, and the results are shown in Table 1.
It was shown to. Method for evaluating "sliminess" The hand was immersed in a 10% by weight aqueous solution of the composition, and the touch was evaluated by a panelist based on the following criteria. In addition, the evaluation was based on the plane value of five or more panelists.

[Table] 5 4 3 2 1

【table】

[Table] Example 2 When a kitchen liquid detergent with the following formulation was prepared and actually used, there was no "slimy" feeling and rinsing was completed quickly. C ₈ glucose ester 30wt% C ₁₂ higher alcohol polyoxyethylene sulfate sodium (linear rate: 40%, = 5) 5wt% Branched C ₁₂ monoalkyl dimethylamine oxide (branching rate: 50%) 8wt% keratin hydrolyzate (Average molecular weight 1000) 0.1wt% Sodium benzoate 2wt% Sodium paratoluenesulfonate 4wt% Ethanol 7wt% Alkanolamide 2wt% Fragrance 0.4wt% Color 0.01wt% Sodium citrate 0.1wt% Water Balance example 3 Table below - When shampoos with each formulation shown in 2 were prepared and used, there was no "slimy" feeling.
Rinsing was also completed quickly. Among the compositions in Table 2, Yukahomer is an acrylic resin made of N-methacryloylethyl-N,N-dimethylammonium, α-N-methylalboxybetaine, and methacrylic acid alkyl ester copolymer manufactured by Mitsubishi Yuka Co., Ltd. Yukahomer AM75201 is a solution of this resin in absolute ethanol with a resin content of 40%, and Yukahomer AMW is an aqueous solution of this resin with a resin content of 30%.

【table】

【table】

[Table] Example 4 When a shampoo with the following formulation was prepared and actually used, there was no "slimy" feeling and rinsing was completed quickly. In the formulation, polymer JR-400 is a cationized cellulose manufactured by Union Carbide. C ₈ glucose ester 15.0wt% C ₁₂ alkyldimethylamine oxide 3.0wt% Polymer JR-400 (manufactured by Union Carbide)
0.2wt% Behenyltrimethylammonium chloride (average molecular weight 404) 2.42wt% Propylene glycol 5.0wt% Polyoxyethylene (average 40 mol) hydrogenated castor oil derivative 2.0wt% N-lauryldimethylaminoacetic acid betaine
5.0wt% Pigment, fragrance Appropriate amount Ion-exchanged water Residual Example 5 When a body shampoo with the following formulation was prepared and used, rinsing was completed quickly without any "slimy" feeling. C ₁₀ glucose ester 30.0wt% C ₁₄ monoalkyldimethylamine oxide 2.5wt% Coco fatty acid methyl-β-alanine sodium
3.0wt% Lauryl imidazoline betaine 10.0wt% Dipropylene glycol 8.0wt% Aloe extract 0.5wt% Coloring agent, fragrance Appropriate amount Preservative, chelating agent Appropriate amount Ion exchange water Residual

Claims (1)

[Scope of Claims] 1 (a) Sugar ester surfactant consisting of an ester of a fatty acid having 6 to 18 carbon atoms and a monosaccharide having 5 to 6 carbon atoms or a monoalkyl ether thereof: 1 to
30% by weight, and (b) an alkylamine oxide: 0.5 to 10% by weight. 2 (a) Sugar ester surfactant consisting of an ester of a fatty acid having 6 to 18 carbon atoms and a monosaccharide having 5 to 6 carbon atoms or a monoalkyl ether thereof: 1 to
30% by weight; and (b) an alkylamine oxide: 0.5 to 10% by weight. 3 (a) Sugar ester surfactant consisting of an ester of a fatty acid having 6 to 18 carbon atoms and a monosaccharide having 5 to 6 carbon atoms or a monoalkyl ether thereof: 1 to
(b) Alkylamine oxide: 0.5 to 10% by weight.