JPH0657289A - Improved solid detergent - Google Patents

Abstract

PURPOSE:To improve the foaming properties, quality of foam, and surface touch of a solid detergent which contains, as the base material, an N- acylglutamate compd. having a long-chain acyl group. CONSTITUTION:A solid detergent contains a mixture of an N-acylglutamate compd. of the formula having a long-chain acyl group with a collagen compd. In the formula, R is a 7-17C alkyl or alkenyl group; and M<1> and M<2> are each H, an alkali metal, a cationic residue of an alkanolamine, or a cationic residue of a basic amino acid provided that they are not simultaneously II.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid detergent based on N-long-chain acylglutamate and having an improved feeling in use.

[0002]

2. Description of the Related Art A solid detergent based on N-long-chain acylglutamate has excellent foaming properties and exhibits a weak acidity similar to that of the skin when used, so that it is less irritating to the skin and after use. It has been widely used in recent years to give the skin a moist feel.

However, solid detergents based on N-long-chain acylglutamates are inferior in smoothness during use and creaminess of foam to fatty acid soaps, and improvements in this point are desired by those skilled in the art. It was rare.

As a method for improving the above problems, lanolin and its derivatives, lecithin and its derivatives, a method of adding a superfatting agent such as higher alcohols and fatty acid esters, and N-long chain acylimino basic acid (salt). However, none of them have satisfactory effects, and there are problems such as other adverse effects.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides a solid detergent containing an N-long chain acylglutamate compound as a base and having excellent foam quality and surface feel without impairing foaming during use. Is what you are trying to do.

[0006]

Means for Solving the Problems The inventors of the present invention have conducted extensive studies to obtain a solid detergent having improved foam quality and surface feel without impairing foaming during use. As a result, N-long chain acyl is obtained. It was found that the above-mentioned problems can be achieved by adding collagen to glutamate, and the present invention has been completed.

That is, the solid detergent according to the present invention comprises an N-long chain acylglutamic acid compound represented by the following general formula (I):

[Chemical 2] (In the formula (I), R represents an alkyl group or an alkenyl group having 7 to 17 carbon atoms, and M ¹ and M ² are each independently a hydrogen atom, an alkali metal atom, or a cationic residue of an alkanolamine. , Or a cationic residue of a basic amino acid, provided that M ¹ and M ² are not hydrogen atoms at the same time), and a collagen compound.

[0008]

Representative examples of the N-long-chain acylglutamate compound represented by the above general formula (I) of the present invention include N-lauroyl-L-glutamate monosodium and N-myristoyl-L-glutamate monosodium. sodium, N- palmitoyl -L- monosodium glutamate, N- mixed fatty (C ₁₂ ~C ₁₈₎ -L- glutamate monosodium, N- mixed fatty (C ₁₂ ~C ₁₈₎ -L-
Glutamic acid mono-L-lysine salt, N-mixed fatty acid (C
_12- C ₁₈ ) -L-glutamic acid mono-L-arginine salt and the like, but not limited thereto. The starting glutamic acid may be an optically active substance or a racemic body, and the basic amino acid used for forming a glutamate may be an optically active body or a racemic body. Further, the compound of formula (I) may be either a di-salt, a mono-salt, or a compound having a neutralization degree of not more than neutralization coexisting.

In the present invention, the collagen compound used as the modifier for the substrate includes soluble natural collagen, soluble atelocollagen and its derivatives. Soluble natural collagen has a molecular weight of about 300,000 and is usually obtained by directly extracting from connective tissues such as skin of animal or animal fetus, bone, tendon and skin of fish. The soluble natural collagen used in the present invention preferably has a polypeptide chain that has not been decomposed by an acid, an alkali, or an enzyme.

Soluble atelocollagen is obtained by subjecting the above-mentioned natural collagen or insoluble collagen to acid, alkali or enzyme treatment, and any water-soluble one can be used.

As the collagen derivative used in the present invention, all derivatives obtained by modifying soluble natural collagen and soluble atelocollagen (eg, succinylation, esterification, acylation, etc.) can be used.

The collagen compound used in the present invention may be partially gelatinized by heat denaturation or the like, or may contain a polypeptide.

In the solid detergent of the present invention, the content of the collagen compound is preferably 0.0005 to 3%, more preferably 0.001 to 2%. If the content of the collagen compound is less than 0.0005%, the effect is insufficient, and if it exceeds 3%, the inconvenience of a slimy feel during use may occur. In the solid detergent of the present invention, the content of the N-long chain acylglutamate compound of formula (I) is preferably 30 to 95% by weight, more preferably 50 to 95% by weight.

In the solid detergent of the present invention, if necessary, higher alcohols such as cetanol and myristyl alcohol, higher fatty acids such as lauric acid and myristyl acid,
Glycerin, glycols such as 1,3-butylene glycol, emollients such as ester oil, hyaluronic acid,
Moisturizers such as chitin and chitosan, cell stimulants such as aloe extract and placenta extract, anti-inflammatory agents such as allantoin and glycyrrhizinate, chelating agents such as edetic acid, perfumes and pigments, and ammonium lauryl sulfate, lauryl Higher alcohol sulfuric acid ester salts such as sodium ether sulfate, higher alcohol phosphoric acid esters, cocoyl methyl taurine sodium, acyl methyl taurine salts such as sodium lauroyl methyl taurine, disodium lauryl sulfosuccinate, POE (1-4) lauryl sulfosuccinate Disodium, POE sulfosuccinate
(5) sulfosuccinic acid type surfactants such as disodium lauroyl ethanolamide and disodium oleic acid amide sulfosuccinate, alkyl ether carboxylates,
Alkyl betaine type amphoteric surfactants such as lauryl betaine, amide betaine type amphoteric surfactants such as lauroylamidopropyl betaine, imidazoline type amphoteric surfactants such as 2-alkyl-N-carboxymethylimidazolinium betaine, fatty acid diethanolamide , Nonionic surfactants such as fatty acid monoethanolamide, POE fatty acid monoethanolamide, amine oxide, POE higher alcohol ether, and POE alkyl phenyl ether, cations such as lauryl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride You may add 1 or more types, such as surfactant. The blending amount of these auxiliary agents is preferably 50% by weight or less based on the total weight of the solid detergent.

In order to produce the solid detergent of the present invention, an appropriate amount of water is added to the above-mentioned base, modifier and, if necessary, auxiliary agent, and this is kneaded with a roll and / or a pelletizer. The method of pushing out and stamping, that is, the mechanical kneading method in soap production may be adopted.

[0016]

EXAMPLES The present invention will be described in more detail with reference to the following examples and comparative examples. Each test method in the examples was performed as follows. (Test method) 10 panelists were made to perform a hand washing test in warm water of about 40 ° C., and the results were evaluated as follows, and the average score was used as the score. Surface smoothness Very smooth 4 points Slightly smooth 3 Not so smooth 2 Not smooth 1

Creamyness Very creamy: 4 points Somewhat creamy: 3 Not very creamy: 2 Not creamy: 1

Examples 1 to 4 and Comparative Examples 1 to 3 The compounded compositions having the compositions shown in Table 1 were sufficiently kneaded with a small roll, and then extruded with a small soap extruder having the die kept at 45 ° C. to obtain the composition. The bar-shaped detergent was molded by a hydraulic laboratory die-casting machine to prepare a solid detergent having a size of 50 mm × 35 mm × 10 mm and a weight of about 20 g. The feeling of use of this solid detergent was evaluated by the above test method. The results are shown in Table 1.

[0019]

[Table 1]

Example 5 A solid detergent having the following composition was prepared in the same manner as in Example 1. Ingredient weight (g) N-lauroyl -L- glutamate monosodium 700 N-cocoyl -L- glutamic acid mono -L- lysine salt 161.8 collagen (proctase processing) 1 Cetyl alcohol 7 Disodium edetate 0.2 Water 130 The test results are shown in Table 2.

Example 6 A solid detergent having the following composition was prepared in the same manner as in Example 1. Ingredient weight (g) N-tallow-acyl L- monosodium glutamate 400 N-cocoyl -L- glutamate disodium salt 467.65 collagen (succinylation treatment) 0.05 tallow 7 isostearyl alcohol 5 edetate 2 Sodium 0.2 Titanium oxide 0.1 Water 120 The test results are shown in Table 2.

Example 7 A solid detergent having the following composition was prepared in the same manner as in Example 1. Ingredient weight (g) N-lauroyl -DL- monosodium glutamate 400 N-palm kernel oil fatty acyl -L- glutamate 469.61 monosodium myristate 10 soluble native collagen 0.05 Collagen (pepsin treatment) 0.03 Hyaluronic acid 0.01 Edetate disodium 0.2 Titanium oxide 0.1 Water 120 Table 2 shows the test results.

[0023]

[Table 2]

As is clear from Tables 1 and 2, it was confirmed that the solid detergents of Examples 1 to 7 were excellent in foamability and had little irritation.

[0025]

EFFECT OF THE INVENTION The solid detergent of the present invention is excellent in foaming and smoothness on the surface during use, and has a creamy foam quality, and has extremely high practicality.

Claims (1)

[Claims] 1. An N-long-chain acylglutamate compound represented by the following general formula (I): (In the formula (I), R represents an alkyl group or an alkenyl group having 7 to 17 carbon atoms, and M ¹ and M ² are each independently a hydrogen atom, an alkali metal atom, or a cationic residue of an alkanolamine. Or a cationic residue of a basic amino acid, provided that M ¹ and M ² are not hydrogen atoms at the same time), and a collagen compound.