JPH03185094A - cleaning composition - Google Patents

Abstract

PURPOSE:To obtain a detergent composition preventing sliminess resulting from adsorption of surfactant on the skin or hard surface, having improved feeling in use and rinsing properties by blending a specific amount of a particular saccharide esterbased surfactant with a specific amount of particular alkanol amide. CONSTITUTION:(A) 1-30wt.% (preferably 5-25 wt.%) saccharide ester-based surfactant comprising an ester of 6-18C fatty acid and 5-6C monosaccharide or a monoalkyl ether thereof is blended with (B) 1-20wt.% (preferably 4-10wt.%) alkanol amide containing >=70wt.% (preferably >=85wt.%) 12C fatty acid alkanol amide to give the objective detergent composition.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning composition with improved "sliminess" during cleaning.

After the Summer Disasters When it comes to cleaning products such as kitchen detergents, household detergents, shampoos, and body shampoos, it is unavoidable that they come into contact with the skin of hands and other surfaces during cleaning, so cleaning compositions that are mild to the skin have been considered. It's here.

However, in conventional cleaning products, the surfactant adsorbs to the skin and hard surfaces, making it feel "slimy" and not only makes it uncomfortable to use.
In order to remove the "sliminess", it is necessary to rinse with a large amount of water after washing, which poses a serious problem in terms of workability and economy.

The object of the present invention is to provide a cleansing composition that is mild to the skin, has little surfactant adsorption to hard surfaces or the skin, and has good rinsability.

The cleaning composition of the present invention is characterized by containing the following components (a) and (b).

(a) Sugar ester surfactant consisting of an ester of C, -1, fatty acid and C1-6 monosaccharide or its monoalkyl ether: 1 to 30% by weight.

(b) Alkanolamide in which C18 fatty acid alkanolamide whose fatty acid residue has 12 carbon atoms accounts for 70% by weight or more: 1 to 20% by weight.

The sugar ester surfactant as the component (a) is a surfactant that has little skin irritation and is mild to the skin.
fatty acids or fatty acid derivatives, such as esters of this fatty acid, and monopentoses.

Obtained from monohexoses or their monoalkyl ethers.

Here, the fatty acid may be saturated or unsaturated, and may be linear or branched. 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 such as xylose, arabinose, ribulose, xylulose, and lyxose, as well as monoalkylated products such as methylxylose and ethylarabinose. Examples of monohexoses include monohexoses such as glucose, galactose, and fructose, as well as monoalkylated products such as methylglucose and ethylglucose. As the above monoalkylated product, an alkylated product having 1 to 3 carbon atoms is suitable.

In the sugar ester surfactant of the present invention, it is not particularly important how many of the hydroxyl groups of the monosaccharide form an ester with C6-13 fatty acid residues, but it is preferable that the surfactant is mainly composed of monoesters, and triester or more polyester is 1
It is desirable that it is less than % by weight.

(a) 11i, the sugar ester surfactant is present in the detergent composition of the present invention in an amount of 1 to 30% by weight, preferably 5 to 2% by weight.
It is blended in an amount of 5% 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 is increased, no improvement in performance is seen. Ester surfactants can be obtained by any appropriate method, but the present applicant has previously published Japanese Patent Application No. 1-21049.
According to the method for producing sugar monofatty acid esters filed as No. 5, sugar esters mainly composed of monoesters can be industrially advantageously synthesized.

Component (b) fatty acid alkanolamide is a nonionic surfactant that is mild to the skin with little skin irritation,
It is an amide of fatty acid and ethanolamine, and fatty acid jetanolamide is a typical example.
2-01, an alkanolamide in which fatty acid alkanolamide accounts for 70% by weight or more, preferably 85% or more is used. When a large amount of furkaramide other than C0 fatty acid alkanolamide is included.

The occurrence of "slimy" cannot be sufficiently prevented.

The component (b), fatty acid alkanolamide, is blended in the detergent composition in an amount of 1 to 20% by weight, preferably 4 to 10% by weight. If this amount is too high.

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, sequestering agents, and hydrotropes. Agents, thickeners, bactericides, preservatives, pigments, fragrances, and the like can be added 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 in applications where the cleaning composition comes into contact with the skin such as hands, skin, scalp, tableware, tiles, etc.
Suitable for cleaning hard surfaces such as glass, etc.1 For example:
Shampoo, body shampoo, kitchen detergent, bath,
Suitable for household detergents for toilets, laundry detergents, etc.

In addition, although the dosage form of the cleaning composition of the present invention is not particularly limited,
It is suitable as a fluid cleaning composition such as liquid, cream, or gel. of course.

It can also be a granular or solid cleaning agent.

According to the present invention, (a) a sugar ester surfactant consisting of an ester of a Cs-1s fatty acid and a C11 monosaccharide or a monoalkyl ether thereof; (b) a fatty acid alkanolamide having a specific number of carbon atoms; By using the surfactant in combination, it is possible to prevent "sliminess" due to adsorption of the surfactant to the skin or hard surfaces, and to obtain a detergent composition that is pleasant to use and has good rinsability.

To a mixture of 5.15 g (27,64 N) of hypoglucose and 1.03 g (5,55 mM) of methyl caprate, 25 mQ of tertiary butyl alcohol was added, and further Thermostable lipase (sp-3
82, Novo Co., Ltd. 11) immobilized on acrylic resin 1
After adding 00 mg, moester (C□.glucose ester) was obtained as a demethanol agent.

Next, 0.5 a of the reaction solution was taken into a screw tube, 2.5 mfl of pyridine was added, and n-
Add 10μ2 of tetradecane, mix well, and then add 1m2 of P solution to 1m2 of acetic anhydride as an acetylating agent.
was added and reacted at 60°C for 30 minutes.

When 1 μa of the reaction solution was analyzed by gas chromatography, glucose monocapric acid ester was found to be 98%
It was obtained with a purity of 70% and a production rate of 70%, and the content of polyester higher than triester was 1% by weight or less.

Hereinafter, the sugar esters used in the examples are obtained in the same manner.

Example 1 A cleaning composition having the composition shown in Table 1 below was prepared.
The "sliminess" was evaluated and the results are shown in Table 1.

"Sliminess" was evaluated by panelists' touch by dipping their hands in a 10% by weight aqueous solution of the composition based on the following criteria. Note that the scores were the average value of five or more panelists.

(Margin below)

Claims (1)

[Claims] 1. (a) 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. (b) 1 to 20% by weight of an alkanolamide in which C_1_2 fatty acid alkanolamide whose fatty acid residue has 12 carbon atoms accounts for 70% by weight or more.