JPS6011597A - Liquid detergent composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a product that has excellent detergency and foaming power and is mild on the skin, and contains three components: α-sulfolipid fatty acid salt tertiary amine oxide and higher fatty acid dialkanolamide. The present invention relates to a cleaning composition.

Conventionally, it has been known that α-sulfo fatty acid dialkali metal salts have poor solubility in water and can only provide extremely low detergency and foaming power. Therefore, the combination of this and an alkylbenzene sulfonate (JP-A-47-12582),
Combined use with higher alcohol ethoxylates (JP-A-47-
Although methods such as No. 6276) have been disclosed, sufficient effects have not yet been obtained.

Taking these points into consideration, the present inventors have conducted intensive studies to develop a cleansing composition that has excellent detergency and foaming power and is mild to the skin. We have discovered that a detergent composition containing three components, a di-salt, a tertiary amine oxide, and a higher fatty acid dialkanolamide, and in which the blending ratio of these three components is within a specific range, can achieve its purpose. Based on this knowledge, we have completed the present invention.

That is, the liquid cleaning composition of the present invention has the following (,)
Contains the three components of ~(c), and (a) / (b)
The ratio is in the range of 9515 to 65/35, and (a
)+(b)/(c) in weight ratio of 90/10 to 20/
It is characterized by being in the range of 80.

(,) General formula (1) (wherein R is an alkyl group or alkenyl group having 8 to 16 carbon atoms, and M and M' are both selected from the group consisting of magnesium and a substituted or unsubstituted ammonium group. cations that form water-soluble salts, which may be the same or different.)
Sulfolipid fatty acid base (b) General formula (II) t R, -N→0 ('') R.

(In the formula, R, +j is an alkyl group having an average carbon number of 12 to 14,
R3 and R3 represent a methyl group or an ethyl group. ) A tertiary amine oxide represented by (e) a higher fatty acid dialkanolamide whose fatty acid residues have an average carbon number of 10 to 14.

The α-sulfo fatty acid salt used as component (a) in the composition of the present invention has a structure represented by the above general formula (I), in which R is an alkyl group having 8 to 16 carbon atoms or an alkenyl group. If the number of carbon atoms is less than 8, the necessary interfacial tension lowering ability will not be obtained, and the cleaning performance will not be exhibited, which is not preferable. Moreover, if it exceeds 6, the complex with the amine oxide becomes too hydrophobic and good performance cannot be obtained.

M and M are magnesium or substituted or unsubstituted ammonium, monoethanolamine, jetanolamine,
Substituted ammoniums such as triethanolamine are preferred. Specific examples of α-sulfo fatty acid salts include α-sulfolauric acid, α-sulfomyristic acid, α-sulfopalmitic acid, α-sulfohydrogenated palm fatty acid, α-sulfohydrogenated beef tallow fat U, α-sulfococonut Fatty acid magnesium diammonium-2) IJ ethanolamine +1
Examples include 2 jetanolamine-2 monobutanolamine, 1% magnesium, 1 ammonium, and 1% magnesium, 1 triethanolamine. This α-sulfo fatty acid salt is produced by sulfonating a fatty acid having a total number of carbon atoms of 10 to 18 using a conventional continuous thin film type sulfonation device or a seed type sulfonation device, and then neutralizing it, or by sulfonating the fatty acid ester. After that, it is obtained by heat treatment under strong alkali.

The preferred content of α-sulfo fatty acid salt in the composition of the present invention is 5 to 50! ! The weight ratio is preferably in the range of 10 to 30°C).

Furthermore, the general formula (It) used in the composition of the present invention
The tertiary amine oxide represented by the formula (R1 in the phase is a straight-chain alkyl group or a branched alkyl group having 12 to 14 carbon atoms) is a monolong-chain alkyl-di-short-chain alkylamine oxide. This R1 is substantially effective if the average number of carbon atoms is in the range of 12 to 14, even if it contains a group with a smaller number of carbon atoms or a group with a larger number of carbon atoms. Those having an alkyl group of ~14 as a main component are more preferred.If the average carbon number is less than 12, the foaming power will be poor, and if it exceeds 14, problems such as clouding of the composition will occur.Formula (R2 and Ill) 6- and R3 are a methyl group or an ethyl group, and may be the same or different.

The tertiary amine oxide represented by the general formula (II) can be used as a single component or in combination of two or more; It is desirable to have it exist in the range of %.

Further, in the higher fatty acid dialkanolamide which is the component (C) of the present invention, those in which the number of carbon atoms in the fatty acid residue is 10 to 14 are used;
)? Even if it is used in combination with component (b), no mutually beneficial effect on cleaning performance is observed, which is not preferable.

This higher fat percentage dialkanolamide has carbon number lθ~]
These alkanolamides can be easily obtained from No. 4 stickers or unsaturated fatty acids and dialkanolamines, and these alkanolamides can be used alone or in combination of two or more.

The third component, higher fatty acid dialkanolamide, is desirably added to the water-based composition in an amount of 1% per 2 to 10 plates.

What is particularly important in the present invention is that in the above three components,
It is to mix within a specific ratio range.

The weight ratio of component (a)/component (b) above is 95/5 ~
6 s/35, particularly preferably 85/15 to 75/
The range is 25. Furthermore, (,) component + (b) component/
The weight ratio of component (C) is 90/10 to 20/80. Particularly preferred is a range of 80/20 to 50/50. Other than the above, the desired mutual effects in detergency and foaming power will not be exhibited.

In addition to the above-mentioned essential components, the cleaning composition of the present invention may optionally contain surfactants used in ordinary cleaning agents, such as anionic surfactants such as sodium alkylbenzene sulfonate and sodium alkyl sulfate. Nonionic surfactants or cationic surfactants such as polyoxyethylene alkyl ethers, perfumes, pigments, etc. can be added.

Examples Cleaning compositions of the present invention and comparative examples having the compositions shown in Tables 1 to 3 below were prepared, and 0.06 wt as an activator was prepared.
The detergency and foaming power were evaluated based on the concentration of %.

Cleaning power evaluation Apply 0.5g of local beef tallow to each plate.

In a vat with a diameter of 3° and a depth of 12α containing a washing liquid with a volume of 31 and a liquid temperature of 25°C, use a sponge to clean the top of the dish by 10
After washing the 10 dishes, the condition of the side surface was visually evaluated using a phenol red solution.

O: Hardly any dirt left △: Very little dirt left ×: Very dirt left Foaming power evaluation Apply 0.7 g of putter to 11 sheets. A diameter 30 mm container with a liquid temperature of 25°C and a volume of 3 mm of washing liquid. , depth 1
2 In a CDZ vat, compress the sponge 10 times to create bubbles with air, then rub the back of the plate contaminated with the putter 10 times and the back 5 times with the sponge until the foam height reaches 1wn. The number of plates was taken as the foaming power.

(Margin below) 10-

Claims (1)

[Claims] 1. (a) General formula (1) (wherein R is an alkyl group or alkenyl group having 8 to 16 carbon atoms, M and l are both magnesium and substituted or unsubstituted ammonium A cation forming a water-soluble salt selected from the group consisting of the following groups, each of which may be the same or different. R1-N→0(■) 3 (wherein, R8 is an alkyl group having an average carbon number of 12 to 14, R
3 and Rs represent a methyl group or an ethyl group. ) A tertiary amine oxide represented by ( ) and a higher fatty acid dialkanolamide whose fatty acid residues have an average number of carbon atoms of 10 to 14. The area ratio is in the range of 9515 to 65/35, and (a)
+ (b) / (c) component 1 ratio is 90/10 to 2
A liquid detergent composition characterized in that it has an o/s O range.