JPH0853693A - Detergent composition - Google Patents

Abstract

PURPOSE:To provide a detergent compsn. which contains an N-acylamino acid surfactant, has a properly adjusted viscosity, is easy to handle, and foams quickly. CONSTITUTION:The compsn. contains an N-acylglycine or its salt and an inorg. salt. Further addition of a polyol to the compsn. can improve the rinsability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition which has an appropriately adjusted viscosity, is easy to handle, and has a high foaming rate.

[0002]

Liquid or creamy detergent compositions such as shampoos, face soaps and kitchen detergents have an appropriately controlled viscosity from the viewpoint of handleability and are excellent in cleaning performance and foaming performance, and can be applied to skin and hair. It is important that the effect on the is mild and the feeling of use is good. N-acyl acidic amino acid salts such as N-acyl glutamate, N-acyl sarcosine salts, N-acyl neutral amino acid salts such as N-acyl-N-alkyl-β-alanine salts are relatively irritating to skin and hair. It is known to be low and have excellent detergency. However, it is difficult to adjust the viscosity of a detergent composition containing these N-acyl amino acid salts to a sufficiently easy-to-handle viscosity depending on the polymer thickener and the inorganic salt. Subject to the above restrictions,
At present, it is difficult to obtain a sufficiently satisfactory detergent composition.

In Japanese Patent Laid-Open No. 4-211507, a detergent composition containing N-acylglycine, N-acyl-β-alanine salt and the like reacts with calcium in tap water during washing to produce a calcium salt. It has a good lubricity and therefore has an excellent feeling of use. However, the detergent composition disclosed herein also has a drawback that it has a low viscosity and is difficult to handle as in the conventional case, and that it takes time until a sufficient amount of foam is formed during foaming.

[0004]

DISCLOSURE OF THE INVENTION An object of the present invention is to provide a detergent composition containing an N-acylamino acid-based surfactant which is less irritating to skin and hair, has an appropriately adjusted viscosity, is easy to handle, and has a foaming effect. To provide a fast cleaning composition.

[0005]

Means for Solving the Problems As a result of intensive studies conducted by the present inventors in view of such circumstances, N-acylglycine, which is one of N-acylamino acids, and salts thereof are different from other N-acylamino acid salts. In contrast, it was found that by combining with an inorganic salt, the viscosity can be appropriately adjusted and a detergent composition excellent in handleability can be easily obtained, and by further incorporating a polyol, the rinsability can be improved. The invention was completed.

The cleaning composition of the present invention will be described in detail below. The N-acylglycine or a salt thereof used in the present invention can be synthesized by a known method, for example, by converting a fatty acid into a fatty acid chloride with phosphorus trichloride, thionyl chloride, phosgene, etc. and then adding it to an alkaline solution of glycine. Examples of the N-acyl group of N-acylglycinic acid or a salt thereof include octanoyl, decanoyl, lauroyl, myristoyl, palmitoyl, stearoyl, oleoyl, linoleoyl, coconut oil fatty acid acyl, and palm kernel fatty acid acyl group. Palm oil fatty acid acyl groups or palm kernel oil fatty acid acyl groups are preferred from the viewpoint of solubility.

The salt is not particularly limited,
For example, alkali metal salts such as sodium and potassium, alkaline earth metal salts such as magnesium and calcium, triethanolamine, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propane. Alkanolamine salts such as diols, ammonia salts,
Examples thereof include choline salts and basic amino acid salts such as lysine, ornithine and arginine.

The content of N-acylglycine or a salt thereof in the present invention is 0.1 to 85% by weight, preferably 1 to 70% by weight. If the content is less than 0.1%, a satisfactory feeling of use cannot be obtained.

Examples of the inorganic salt used in the present invention include salts of a mineral acid such as sulfuric acid, hydrochloric acid, phosphoric acid or the like with an alkali metal or an alkaline earth metal, and specifically, sodium chloride, potassium chloride, Magnesium chloride, calcium chloride, sodium sulfate, sodium hydrogen sulfate, potassium sulfate, potassium hydrogen sulfate, magnesium sulfate, calcium sulfate, monosodium phosphate, disodium phosphate, monopotassium phosphate, dipotassium phosphate, sodium carbonate, carbonic acid Examples thereof include sodium hydrogen, potassium carbonate, potassium hydrogen carbonate, magnesium carbonate, calcium carbonate and the like. Among them, sodium salt has a high viscosity adjusting effect, and sodium chloride has the highest thickening effect. These salts can be used alone or as a mixture.

The content of the inorganic salt is usually 0.1 to 50% by weight, preferably 0.5 to 3 in the total composition.
0% by weight. When the content of the inorganic salt is less than 0.1% by weight, the thickening effect is not obtained, which is not preferable. However, for example, when a crystalline inorganic salt is used as a scrubbing agent, there is no particular problem even if it is added at a solubility or higher.

By adding a fatty acid salt in addition to the components (A) and (B), the viscosity can be easily adjusted. The fatty acid salt is a linear or branched saturated or unsaturated fatty acid having 12 to 20 carbon atoms, particularly lauric acid, myristic acid, palmitic acid, stearic acid, coconut oil fatty acid, hardened beef tallow fatty acid, oleic acid. I can give you some salt. Examples of the salt include alkali metals such as sodium and potassium, organic amines such as alkanolamine, and basic amino acids such as lysine, ornithine and arginine. These may be used alone or in combination of two or more. The amount of the fatty acid salt compounded is not particularly limited, but is preferably about 0.1 to 30% by weight in the composition.

The rinsability can be improved by adding a polyol as the component (C) to the detergent composition of the present invention in addition to the components (A) and (B). The polyol used in the present invention has two or more hydroxyl groups in the molecule and includes glycerin, diglycerin, 1,3
-Butylene glycol, octane diol, maltitol, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isoprene glycol, sorbitol, pentaerythritol,
Glucose, trehalose, fructose and the like can be mentioned. Among them, glycerin, 1,3-butylene glycol, and polyethylene glycol having an average molecular weight of 400 or more are preferable in terms of feeling in use and foam quality.

The content of the polyol is 1 to 5 in the total composition.
It is 0% by weight, preferably 2 to 20% by weight. Further, when peculiar foaming is required such as foaming makeup removal, sufficient foaming feeling can be obtained even at 20% by weight or more. If it is less than 1%, the rinsing property is not improved, and if it exceeds 50% by weight, the foam quality is poor and the feeling of use is poor, which is not preferable.

The pH of the cleaning composition of the present invention is generally 5 to 5.
10 is preferable, and the pH is 6 to 9 from the viewpoint of foaming and stability.
Is more preferable. If the pH is less than 5 or more than 10, coloration or turbidity occurs during long-term storage, which is not preferable.

The detergent composition of the present invention can be used for kitchen detergents, shampoos, facial cleansers, body cleaners, bubble bath detergents, etc. depending on the purpose of use, but especially, shampoos, facial cleansers, Suitable for body wash.

Further, in the detergent composition of the present invention, anionic surfactants, amphoteric surfactants, nonionic surfactants, and cationic surfactants other than the components can be used together within the range that does not impair the effects of the invention. .

Furthermore, the components commonly used in the detergent composition are
It can be added to the detergent composition of the present invention within a range that does not impair the effects of the present invention. Commonly used ingredients in detergent compositions include pyrrolidonecarboxylic acid, lactate, humectants such as urea, glyceryl monostearate, sorbitan monopalmitate, polyoxyethylene cetyl ether, polyoxyethylene stearate, polyoxy. Emulsifiers such as ethylene sorbitan monolaurate and diglycerin monostearate, liquid paraffin, petrolatum, solid paraffin, squalane, hydrocarbons such as olefin oligomers, higher alcohols such as stearyl alcohol, isopyrmyristate, isopropyl palmitate, Stearyl stearate, myristin octyldodecyl, oleic acid octyldodecyl, esters of 2-ethylhexanoic acid triglyceride, superfatting agents, drugs such as crude drugs, methylcellulose, hydroxyethyl ester Cellulose, hydroxypropyl cellulose, cellulose 誘体, natural polymers, polyoxyethylene glycol distearate, such as cationized cellulose, ethanol,
Examples thereof include viscosity modifiers such as carboxyvinyl polymers, antiseptic / antifungal agents such as paraben derivatives, pearlizing agents, anti-inflammatory agents, ultraviolet absorbers, pH adjusters, fragrances and dyes.

[0018]

The present invention will be described in more detail with reference to the following examples. In addition, the compounding amount in this example was expressed by weight%.

Example 1 A detergent composition (pH 7.3) shown in Tables 1 and 2 below was prepared, and its viscosity, foam amount, foaming speed and rinsability were evaluated by the following methods. The results are shown in Tables 1 and 2.

Test Method (Measurement of Viscosity) The viscosity at 25 ° C. was measured using a B type viscometer. (Evaluation of foam creaminess, foaming speed, and rinsing property) A total of 40 panelists, 20 each for men and women, washed the skin and the hair, and performed sensory evaluation. For evaluation, an average value was calculated according to the following criteria, and an average value of 4.5 or more is very good (⊚), a case of 3.5 to 4.4 is good (○), and a case of 2.5 to 3.4 is Usually, the case of (Δ) 2.4 or less was regarded as a defect (x).

A. Handleability 5: Very easy to handle 4: Easy to handle 3: Normal 2: Somewhat difficult to handle 1: Very difficult to handle

B. Creamyness of foam 5: Very creamy foam 4: Creamy foam 3: Normal 2: Foam is not very creamy 1: Foam is not creamy

C. Foaming speed 5: Foaming is very fast 4: Foaming is moderately fast 3: Normal 2: Foaming is moderately slow 1: Foaming is slow

D. Rinseability 5: Rinseability is very good 4: Rinseability is good 3: Normal 2: Rinseability is slightly bad 1: Rinseability is very bad

[0025]

[Table 1]

[0026]

[Table 2]

From the table, it can be seen that the viscosity can be easily increased by adding an inorganic salt to the detergent composition containing the N-acylglycine salt. Further, it is understood that the addition of the polyol further improves the rinsability, and the combined use of the fatty acid salt can increase the viscosity with a slight addition amount of the inorganic salt.

The following cleaning composition was prepared. These detergent compositions had excellent stability, quick foaming, and had an appropriately adjusted viscosity, and were excellent in handleability.

Body shampoo

[Table 3]

Body shampoo

[Table 4]

Body shampoo

[Table 5]

Body shampoo

[Table 6]

Face wash foam

[Table 7]

Liquid facial cleanser

[Table 8]

Hair shampoo

[Table 9]

Hair shampoo

[Table 10]

Hair shampoo

[Table 11]

Face wash foam

[Table 12]

Face wash foam

[Table 13]

Gel scrub face wash foam

[Table 14]

[0041]

EFFECT OF THE INVENTION The detergent composition of the present invention has a quick foaming property and has an appropriately adjusted viscosity and is excellent in handleability. Further, the detergent composition of the present invention can have improved rinsability by blending with a polyol.

Continuation of front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area C11D 3/20

Claims (2)

[Claims] 1. A detergent composition comprising (A) N-acylglycine or a salt thereof and (B) an inorganic salt. 2. The cleaning composition according to claim 1, which contains (C) a polyol.