JPS6023151B2 - cleaning composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a detergent composition containing an N-acylglutamate (abbreviated as AG salt) and a hydroxyethyl polysaccharide cationized at a quaternary nitrogen group (abbreviated as CHG). The purpose is to provide a cleansing composition that has a mild effect on the skin and hair, has fine foam and a smooth feeling of use, and is also improved in terms of form. There is a particular thing.

AO salts are used as mild anionic surfactants for the skin and hair in solid detergents, detergent pastes, shampoos, and the like.

The present inventors used AG salt and added other surfactants,
As a result of various studies to provide even better detergents by adding additives, we have added CH to detergents such as solid detergents, paste detergents, and liquid detergents that contain AG salts as active ingredients.
It has been found that by adding G, the feel on the skin and hair becomes smoother. Furthermore, in the case of solid detergents, in addition to the above-mentioned characteristics, they also improve the ability to release from the mold during molding.
It was also discovered that the frictional meltability is reduced, and the meltability and adhesion to soap boxes are also improved, leading to the completion of the present invention. As the acyl group of the AG salt used in the present invention, single or mixed fatty acid residues of saturated, unsaturated, straight or branched fatty acids having 8 to 22 carbon atoms are used, and as the salt, alkali metal, Mono- or di-equivalent salts of ammonium, alkylolamine, basic amino acids, etc. are appropriately selected depending on the form of the detergent.

CHG, one of the components used, is obtained by reacting a cationic quaternary nitrogen compound such as glycidyltrimethylammonium chloride with a compound obtained by hydroxyethylating polysaccharides such as starch, cellulose, and dextrin with ethylene oxide. The most typical example is a cationic polymer obtained by

The amount of CHG added to the AG salt varies depending on the form of the product, but is used in the range of 0.1 to 2% by weight.

For example, in liquid shampoo, 1 to 1
A range of 2% by weight is suitable, and the effects on the hair, ie, smoothness, combability, etc., are properly exhibited.
This effect is greater than that of other common anionic surfactants such as lauryl sulfate and lauryl ether sulfate.
It is superior to the gentle action of AG salt on hair,
This is based on the fact that the conditioning effects of CHG act more reciprocally. For brady detergents, 0.
CHG is used in a range of 1 to 5% by weight, and in addition to the above-mentioned smoothness, it has the effect of increasing the viscous property at room temperature and reducing the change in viscous steel property between high and low temperatures in terms of morphology.

For solid detergents, a range of 0.1 to 3% by weight is appropriate, and it improves the moldability during solidification, especially the release of the solid detergent from the mold during molding, and improves the moldability during use. In addition, frictional dissolution, dissolution, and adhesion to soap boxes are also improved.

The cleaning composition of the present invention may contain other surfactants, such as other N-acyl amino acid salts, N-acyl proteins,
Anionic surfactants such as alkyl sulfate, alkyl ether sulfate, alkyl sulfate, alkyl ether sulfate, alkyl sulfoacetate, nonionic surfactants such as fatty acid alkylolamide, sugar ester, betaine type, imidazoline type, etc. Amphoteric surfactants and small amounts of cationic surfactants are used as necessary. In addition, builders, solubilizers, diluents, excipients, fragrances, pigments, and the like can be added as appropriate. Hereinafter, this will be explained in detail using examples.

It should be noted that all percentages in the examples are based on weight. Example 1 Liquid Shampoo A shampoo having the following composition was prepared and various performances were evaluated.

Table 1 *I N-cocoylglutamic acid monotrietanolamine salt *2 Reaction product of hydroxyethyl cellulose and glycudyltrimethylammonium chloride (purity 50%) *3 Apply Arpeace to human hair with artificial dirt attached Wet it with warm water containing 40 CI, add 0.5 drops of the sample shampoo, and press wash.

If the foam does not form, rinse with warm water, add 0.5 drops of shampoo again, and repeat the same procedure. The number of washes of the shampoo used at the time when sufficient foam has been produced is recorded, and it is determined that the smaller the number of washes, the greater the detergency.
*4 A human hair hairpiece is soaked for 15 minutes in a test solution prepared by diluting the test shampoo (5 female) with 100% warm water at 40°C.

Thoroughly wash with 300ml of warm water, then soak for 30 seconds in a solution prepared by diluting a commercially available conditioner with 100% of warm water at 40°C, and then let the warm water flow down to determine whether the hair beads are combed. If it is not smooth, repeat the operation of soaking it in the rinse solution again and record the number of times it takes to soak it in the rinse solution until it is smooth. It is determined that the smaller the number of rinses, the better the combability of the sample shampoo. *5 A panel of 5 men and 5 women scored their impressions when comparing the test shampoo with the shampoo they use on a daily basis using the following 5-point scale, with the control product being 0. The average score is shown.

The feeling of foam when using it is poor. Y) Inferior Same Y. Good Good -2 -1 0 11 12 Strong creak feeling when rinsing Y) Strong Same Weak Weak -2 -1 0 11 12 After use Example 2 Solid detergent monosodium N-acyl-L-glutamate (AGS)
)* 79-string cationized hydroxyethylcellulose*
2 0 or 2 cetyl alcohol
6 lauroyl compound of enzymatic hydrolyzate of gelatin 3 water As shown in Table 1, it was confirmed that the effect of CHG on AG salt was superior to the effect on lauryl ether sulfate.

Example 2 Solid detergent N-acyl-L-glutamate monosodium (AOS
) * 79% thionized hydroxyethyl cellulose * 20 or 2 cetyl alcohol 6 lauroylated product of gelatin enzymatic hydrolyzate 3 water
Remaining total 100% * (The composition of the acyl group is an 8:2 mixture of semi-hardened beef fatty acid and coconut oil fatty acid) *2 See Table 1 After kneading each component in the above composition, except AGS, at room temperature, Bring to room temperature while stirring and emulsifying.

This is sufficiently kneaded using AGS and a small roll, and extruded using a small-sized solid soap prototype device with a nozzle maintained at 40-50 qo. The obtained bar-shaped detergent was molded using a foot-type molding machine.

At this time, we tested the ease with which the solid detergent peeled off from the mold using a control product (
As a result of comparison with the above composition (without CHG added), it was found to be good. Table 2 shows the results of measuring the performance of the obtained solid detergent. Table 2 *I Measured according to JIS K3362-1970.

Concentration 0.25%, measurement temperature 40℃*2 JIS K33
Measured according to 04-1956.

*3 Weight increase when solid detergent is suspended in water at 20°C for 1 hour, expressed as a percentage. *4 Measured using JIS Z2246 Shore-A.

*5 A sample solid detergent was placed in a small soap box by adding one ounce of water, and 15 hours later, the ease with which it came off from the soap box was sensory evaluated by a panel of 10 people.

As is clear from Table 2, the product of the present invention has lower frictional solubility and dissolution degree than the control product, and also has improved adhesion to the soap box.

Also, although the amount of bubbles did not change, the quality of the bubbles became thicker. Example 3 Detergent paste* (Lauroylated amino acid mixture obtained by hydrolyzing casein and soybean protein (1:1) with hydrochloric acid)
*2 See Table 1 By blending the above ingredients, an excellent paste detergent that was gentle on the skin and produced fine foam was obtained.

In addition, the viscosity change due to temperature change was compared with a control product (C in the above compounded product).
As shown in FIG. 1, it can be seen that the viscosity change of the product of the present invention is smaller than that of the product of the present invention compared to that of the product (without HG added).

[Brief explanation of drawings]

Figure 1 shows a product containing cationized hydroxyethyl cellulose (1) and a product without it (...) in the cleaning agent of Example 3.
FIG. Hole-like

Claims (1)

[Claims] 1. A cleaning composition comprising 0.1 to 20% by weight of hydroxyethyl polysaccharide cationized at a quaternary nitrogen group in a cleaning agent containing N-acylglutamate based on the N-acylglutamate. .