JPH03174498A - Detergent composition - Google Patents

Abstract

PURPOSE:To obtain a detergent composition which is less irritative to skin, hardly causes adsorption of surfactants to the surface of hard material or skin, and hence can be rinsed away readily by using a specific sugar ester-based surfactant and an alkylamine oxide. CONSTITUTION:1-30wt.% sugar ester-based surfactant made of an ester of a 6-18C aliphatic acid and a 5-6C fructose or its monoalkyl ether and 0.5-10wt.% alkylamine oxide are mixed to obtained a detergent composition. Due to the co-presence of the sugar ester-based surfactant and the alkylamine oxide, adsorption of surfactants to the surface of hard material or skin is avoided, thus preventing the surface or skin from getting 'slimy'. This detergent composition is comfortable to use, and can be readily rinsed away.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cleaning composition that does not leave a "slimy" feeling during cleaning and has good rinsing properties.

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 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) Cs-8e fatty acid and C6~. Sugar ester surfactant consisting of a monosaccharide or an ester thereof with a monoalkyl ether: 1 to 30% by weight.

(b) Alkylamine oxide: 0.5-10% by weight.

The sugar ester surfactant of component (a) is a surfactant that is mild to the skin with little skin irritation, and contains a fatty acid of C, or a fatty acid derivative such as an ester of this fatty acid, and monopentose.

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, for example, caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, caproleic acid, lauroleic acid, myristoleic acid, palmitoleic acid, and oleic acid. , methylundecanoic acid and the like.

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. As a monohexose.

In addition to monohexoses such as glucose, galactose, and fructose, monoalkylated products such as methylglucose and ethylglucose can be mentioned. 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 the C1 to C2 fatty acid residues, but it is preferable that the surfactant is mainly composed of monoesters, Triester or higher polyester is 1
It is desirable that it is less than % by weight.

The sugar ester surfactant as component (a) is blended in the detergent composition of the present invention in an amount of 1 to 30% by weight, preferably 5 to 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 is increased, no improvement in performance is seen. Ester surfactants can be obtained by any appropriate method, but the present applicant 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), the alkylamine oxide, is a surfactant that has little skin irritation and is mild to the skin, and is represented by the following general formula (1). Here, R, R2 is carbon number l~
5 is an alkyl group or a hydroxyalkyl group, and R8 is an alkyl group having 8 to 20 carbon atoms.

...(1) R3 may be saturated or unsaturated, and may be linear or contain a branched chain.

The alkylamine oxide may be present in the cleaning composition from 0.5 to
It is blended in an amount of 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 blending amount is too small, the cleaning performance will deteriorate.

The cleaning composition of the present invention may contain various optional components depending on its use, such as anionic surfactants, nonionic surfactants, cationic surfactants, 1 amphoteric surfactants, sequestering agents, hydrotropes, etc. 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, 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 used as a granular or solid cleaning agent.

According to the present invention, (a) a sugar ester surfactant consisting of an ester of a c-, a fatty acid and an 05-S monosaccharide or a monoalkyl ether thereof; and (b) an alkylamine oxide. When used 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.

25 mm of tertiary butyl alcohol was added to a mixture of 5.15 g (27.64 mmol) of glucose and 1.03 g (5.55 mmol) of methyl caprate, and then a mixture of thermostable lipase derived from Candida antarctica was added. (sp-3
82, manufactured by Novo) immobilized on acrylic resin 10
After adding 0B, 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 obtain glucose monocapric acid ester (Process C. Glucose ester).

Next, 0.5 mQ of one reaction solution was taken into a screw tube, 2.5 mQ of pyridine was added, and 10μ of n-tetradecane was added as an internal standard substance. 1 mA of acetic anhydride was added as a solution, and the mixture was reacted at 60°C for 30 minutes.

When 1μ 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.

- Slimyness' - Hands were immersed in a 10% by weight aqueous solution of the composition and evaluated by panelists' touch based on the following criteria.

In addition, Ratings are the average of 5 or more panelists took the value.

(Margin below) Example 2 Prepare a liquid kitchen cleaner with the following formulation.

When I actually used it, there was no 'slimy' feeling and the rinsing was completed quickly.

C, glucose ester 30
vt% keratin hydrolyzate (average molecular weight 1ooo) sodium benzoate para-toluenesulfonate sodium ethanol alkanolamide perfume dye sodium citrate water 0.1wt% 2wt% 4vt% 7wt% 2wt% 0.4vt% 0.01vt% 0, lvt% Balance Example 3 When shampoos of each formulation shown in Table 2 below were prepared and used, there was no "slimy" feeling and rinsing was completed quickly.

(Left below) Example 4 A shampoo with the following formulation was prepared and used.
There was no 'slimy' feeling and the rinse was completed quickly.

C, glucose ester 15
．． 0wt% amine oxide
3. o11t% polymer JR-400 (manufactured by Union Carbide) 0.2wt% propylene glycol 5.0wt% N-lauryldimethylaminoacetic acid betaine 5. O
wt% pigment, fragrance
Appropriate amount of ion exchange water
Remaining Example 5 When a body shampoo with the following formulation was prepared and used, rinsing was completed quickly without any 'slimy' feeling.

C1゜Glucose ester 30.0% t% lauryl imidacillin betaine dipropylene glycol Aloe extract Coloring agent, fragrance Preservative, chelating agent Ion exchange water 10.0% 8.0% 0,5% Appropriate amount Remaining amount ( (Blank below) Example 6 When a liquid laundry detergent with the following formulation was prepared and used, there was no "slimy" feeling and rinsing was easily completed.

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) Alkylamine oxide: 0.5 to 10% by weight.