JPS61140515A - Shampoo composition - Google Patents

Abstract

PURPOSE:A shampoo composition that is obtained by combining a water-soluble salt with a specific peptide and a pearlescent agent, thus resisting the coagulation and precipitation of the pearlescent agent even after long-term storage at high temperatures to keep stabilized homogenous dispersion, resulting in pearlescent effect stabilized for a long period of time. CONSTITUTION:The objective composition contains (A) 0.1-10wt% of a pearlescent agent, preferably an ethylene glycol ester of a fatty acid of 14-24 carbon atoms, (B) a water-soluble salt such as sodium chloride or magnesium chloride and (C) 0.05-10wt% of at least one selected from peptide of 200-8,000 average molecular weight, resulting from hydrolysis of natural protein, acyl protein by acylating the peptide with an acylating agent of 4-24 carbon atoms, alkali metal salts and hydroxyalkylammonium salts of the acylated peptides. Thus, the composition can keep bright pearlescent gloss for a long period of time, because the agent can stably disperse in the shampoo composition, even after it is stored at elevated temperatures.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to shampoo compositions with stable/4-l shine.

Shampoo compositions have been commercially available which have been imparted with sheer/tar luster by incorporating various types of pigments and unifying agents. In this case, in order for the shampoo composition to have the desired beautiful nolled luster by incorporating the mulching agent, these mulching agents must be uniformly and stably dispersed in the shampoo liquid. However, if the pearlizing agent aggregates, settles, or floats, the pearlescent luster will disappear.

Therefore, in order to maintain the nozzle luster of the shampoo composition stably for a long period of time, various methods have been proposed to prevent the nozzle-forming agent from agglomerating, settling, floating, etc.

For example, for the purpose of preventing agglomeration of the parenterizing agent, polymeric substances such as 4-lyacrylic acid, acrylic acid-methacrylic acid copolymer, amphoteric compound-methacrylic acid alkyl ester copolymer, etc., which have a protective colloid effect are used. In addition, for the purpose of preventing sedimentation or floating of the pearl forming agent, water-soluble inorganic salts and organic salts are added to bring the specific gravity of the pearl forming agent and the shampoo liquid closer together. Efforts have been made to prevent the sedimentation and floating of the chemical agent. In addition, attempts have been made to prevent sedimentation or floating of the noyalizing agent by increasing the viscosity of the shampoo liquid by adding thickeners, jelly-forming agents, etc., or making the shampoo liquid into a jelly-like state.

However, with these methods, when storing a shampoo composition containing a lubrication agent at room temperature or low temperature, the lubrication agent is dispersed relatively stably and the glossiness is well maintained. However, when stored at high temperatures for a long period of time, the pearlizing agent tends to aggregate, settle, or float, causing the shampoo to lose its pearlescent luster. Therefore, there is a strong demand for a shampoo composition containing a nol-forming agent that does not lose its nol luster even when stored at high temperatures for a long period of time and has good stability.

Summary of the Invention The present inventors have discovered that even when stored at high temperatures for long periods of time, the nolization agent contained in the shampoo composition does not aggregate, settle, or float, and is stably and uniformly dispersed. As a result of intensive research aimed at obtaining a shancy composition with excellent pearlescent stability that can maintain clear pearlescent luster for a long period of time, we found that (a) 0.1 to 10% by weight of a noyalizing agent; and (b)
(c) nine peptides obtained by hydrolyzing natural proteins to have an average molecular weight of 200 to 8,000;
Acylated peptide obtained by acylating 7"tide with an acylating agent having 6 to 24 carbon atoms, and the acylated peptide (one or more peptides selected from alkali metal salts and hydroxyalkyl-substituted ammonium salts of detide) Class 0.
It was discovered that a shampoo composition containing 0.05 to 10% by weight, respectively, effectively achieves the above object, and this led to the present invention.

According to the shampoo composition of the present invention, even when stored at high temperatures for a long period of time, the pearlizing agent contained in the shampoo composition does not aggregate, settle, or float, and is stably and uniformly dispersed.
It maintains clear I-le gloss for a long period of time.

The present invention will be explained in more detail below.

Constitution of the Invention The first essential component used in the present invention is a 4-forming agent. As a pearlizing agent, the fatty acid has 14 to 24 carbon atoms.
Ethylene glycol fatty acid esters are preferably used, specifically ethylene glycol monostearate, ethylene glycol distearate, ethylene glycol mononormitate, ethylene glycol dipalmitate, ethylene glycol tallow fatty acid diester, ethylene glycol Examples include beef tallow fatty acid monoester, ethylene glycol behenic acid monoester, and ethylene glycol behenic acid diester, and these can be used alone or in combination of two or more. Among these pearlizing agents, ethylene glycol distearate, ethylene glycol dipalmitate, and mixtures thereof are particularly preferably used.

The blending amount of these 14-forming agents is 0.1 to 0.1 to
10% (by weight, the same applies hereinafter), preferably 0.1 to 5%
It is. If the amount is less than 0.1%, the shampoo composition will not have sufficient luster, and if it exceeds 10%, the dispersion density of the pearlizing agent will be high and the pearlescent luster will become unclear. .

The second essential ingredient used in the present invention is a water-soluble salt.

Any water-soluble salt can be used as the water-soluble salt, but specific examples include sulfuric acid, carbonic acid, monobicarbonic acid, hydrochloric acid, boric acid, and phosphoric acid.

Inorganic acids such as picric acid, hexametaphosphoric acid, nitric acid, citric acid, phosphoric acid, tartaric acid, succinic acid, gluconic acid, am
, maleic acid, fumaric acid, phthalic acid.

Ethylenediaminetetraacetic acid, benzoic acid, benzenesulfonic acid, nitrilotriacetic acid, glycylenesulfonic acid, l-hydroxyethane-1,1-diphosphonic acid.

Examples include alkali metal salts, alkaline earth metal salts, ammonium salts, and hydroxyalkyl-substituted ammonium salts of organic acids such as propionic acid, and these can be used alone or in combination of two or more. Among these water-soluble inorganic salts, sodium chloride, magnesium chloride, and potassium chloride.

Triethanolamine hydrochloride, sodium sulfate.

Magnesium sulfate, potassium sulfate, triethanolamine sulfate, sodium citrate, potassium citrate, triethanolamine citrate, etc. are preferred (used).

In this case, the amount of these water-soluble salts is not particularly limited, and can be determined as appropriate depending on various physical properties such as the specific gravity of the pearlizing agent used and the desired viscosity of the shampoo liquid, but it is preferable. is 0.1-10% of the entire composition
It is.

The third essential component used in the present invention is a peptide.

Selected from acylated peptides and acylated peptide salts (peptides). Here, the peptide used is one obtained by hydrolyzing a naturally-obtained protein to an average molecular weight of 200 to 8,000. Monoderu,
Further, the acylated peptide used is one obtained by acylating the above-mentioned peptide with an acylating agent having 6 to 24 carbon atoms, and the acylated peptide salt is an alkali metal salt, a dialkyl-substituted ammonium in hydrocarbon, etc. Although salts are used, these peptides may be used alone or in combination of two or more. In addition, as a specific example of these components, N
Examples include -cocoyl peptide, N-myristyl peptide, N-oleyl pegtide, N-undecyl-eftide, and alkali metal salts and hydroxyalkyl-substituted ammonium salts thereof. Among these, especially N-
Cocoyl peptide, N-cocoyl alkali metal salt.

N-cocoylhydro-sial Φ-substituted ammonium, N
-Oleyl pegtide, N-oleyl alkali metal salts and dialkyl-substituted ammonium in N-oleylhydro are preferably used.

The blending amount of the above peptides is 0.05 to 10% of the total composition.
H, preferably 0.1 to 5 rice cakes・Blending amount is 0.05
If the percentage is too low, the matrix forming agent in the shampoo composition will not be uniformly dispersed at high temperatures, and if it exceeds 10%, it will be difficult to wash the hair.
It becomes sticky after drying, which is undesirable.

In addition to the above-mentioned ingredients, the shampoo composition of the present invention also includes:
The following optional components may be blended within a range that does not affect the effects of the present invention.

That is, the optional ingredients include anionic surfactants, nonionic surfactants, and cationic surfactants commonly used in shampoos, one amphoteric surfactant: methyl cellulose, and hydroxyethyl cellulose.

hydroxyethyl cellulose, cationized cellulose,
Thickeners such as polyethylene glycol, fatty acid ester of lyethylene glycol, and coconut oil fatty acid jetanolamide; ethylene glycol.

Moisturizers such as propylene glycol, 1.3-7" ethylene glycol, glycerin, sorbitol; vitamin E,
Vitamins such as vitamin C and vitamin E acetate;
Cooling or heating agents such as peppermint and capsicum tincture; bactericides, solubilizers, softeners, ultraviolet absorbers, chelating agents, viscosity modifiers.

Coloring agents, fragrances, etc. can be mentioned, and one or more of these optional components may be blended as required.

Effects of the Invention The shampoo composition of the present invention uses the above-mentioned water-soluble salts and peptides in combination, and combines these with a pearling agent. It is uniformly and stably dispersed without agglomeration, sedimentation, or floating, and the t! - Excellent gloss stability and maintains a clear pearlescent luster over a long period of time.

The present invention will be specifically explained below by showing Examples and Comparative Examples, but the present invention is not limited to these Examples. Explain the evaluation method.

Fill it into a container and store it in a cool place at 45°C for 30 days.

The mother gloss before and after storage was compared, and the degree of change was visually judged.

Note that the evaluation was performed on a 5-level evaluation based on the following criteria.

Evaluation criteria ◎: Almost no change observed compared to before storage・○
: A slight change is observed compared to before preservation. Δ: A change is observed compared to before preservation. ×: A slight change is observed compared to before preservation.

XX: /JF-Ru gloss is hardly recognized.

[No stickiness of hair]

The hair of 10 women and 10 men was washed using the shampoo compositions on each side, dried, and then subjected to a sensory evaluation of the non-stickiness of the hair.

Note that the evaluation was performed on a three-level evaluation based on the following criteria.

Evaluation criteria Q: Hair is not sticky Δ: Hair is slightly sticky ×: Hair is sticky [Examples 1 to 8. Comparative Examples 1 to 10] Shampoo compositions having the compositions shown in Table 1 were prepared and heated at 45°C.
After storing the hair under cover for 30 days, the stability of the gloss and the lack of stickiness of the hair after washing and drying were evaluated.The evaluation results are also listed in Table 1.

In addition, the blending amounts in the table indicate weight %.

It is clear from the results in Table 1 that the shampoo compositions (Examples 1 to 8) containing predetermined amounts of a notaring agent, a water-soluble salt, and an acylated eftide salt have a /4-gloss stability. Both properties and non-stickiness are excellent. In contrast, the shampoo composition lacking both water-soluble salts and acylated peptide salts (Comparative Example 1.2) has significantly poorer AI-ru gloss stability.

In addition, shampoo compositions lacking either a water-soluble salt or an acylated peptide salt (Comparative Examples 3 to 6) had poor arm shine stability. Furthermore, a shampoo composition containing less than 0.1% of the lubricating agent (Comparative Example 7) and a shampoo composition containing the lubricating agent in an amount of 1%.
All of the shampoo compositions containing more than 0% (Comparative Example 9) had poor pearlescent properties, and the amount of acylated peptide salt was O.
, OS* (Comparative Example 10) and a shampoo composition containing more than 10% (Comparative Example 8)
) all cause hair to become sticky, and therefore, the object of the present invention can only be achieved when the three agents, a sulfuric acid, a water-soluble salt, and an acylated peptide salt, are used in combination within a predetermined blending amount range. [Example 9] Ethylene glycol distearate 2 Anhydrous sodium sulfate 2 N-Sodium cocoyl bezotide (molecule t650) 1 Coconut oil fatty acid diethanolamide 4 Ultraviolet absorber
0.1 Fragrance 0.5 Pigment 0.001 [Example 10] (Number of carbons 14-18) Cationized cellulose 1 Ethylene glycol distearate 2 Sodium chloride 2 N-oleyl peptide t-thorium (molecule Ji 730) 2 Coconut oil fatty acid diethanolamide Do 5chi UV absorber 0.1 ethanol
2 Fragrance 0.5 Color Pigment
0.001 Purified water Remaining 100% [Example 11] Hydroxyethyl imidazolinium betaine magnesium sulfate 2N-cocoyl peptide triethanolamine 2 Coconut oil W acid diethanolamide 5 Ethylene glycoldino mother lumitate 2 Ultraviolet absorber
0.1 Fragrance 0.5 Color Pigment
0.001 Purified ice Remaining 100% All of the shampoo compositions of Examples 9 to 11 had excellent performance. - The gloss of the armpits showed almost no change before and after storage at 45°C for 30 days, and the shampoo compositions of Examples 9 to 11 showed almost no change in the luster before and after storage at 45°C for 30 days. The hair did not feel sticky after drying.

[Example 12] Sodium 4-lioxyethylene lauryl sulfate 15% (
(Average number of moles of ethylene oxide added: 3 moles) Ethylene glycol distearate 1 Anhydrous sodium sulfate 1.5 Polyethylene glycol distearate 0.5 (Average molecular weight 9000
) N-cocoylpezotide sodium 2 Coconut oil fatty acid diethanolamide 4 Ultraviolet absorber 0.1 Fragrance 0
．． 5 Pigment 0
．． 001 Purified water Remaining 100% [Example 13] Sodium polyoxyethylene lauryl sulfate 10% (
Average number of ethylene oxide additions (3 moles) Sodium lauryl sulfate 5 Ethylene glycol distearate 1 Anhydrous sodium sulfate 1.5 Citric acid
monohydrate 0,5N-sodium cocoyl peptide 2 ultraviolet absorber
0.1 Fragrance 0.5 Color 0.
001100% [Example 14] Sodium alpha olefin sulfonate 10 Thiethylene glycol distearate 2 Lauryl dimethylamine oxide 5 Ethyl alcohol 3 Anhydrous sodium sulfate 2 Citric acid monohydrate 0.5 N-Sodium cocoyl peptide 2 Coco fatty acid diethanolamine 4 UV absorber
0.1 Fragrance 0.5 Color 0
．． 001100% The compositions of Examples 12 to 14 also had good performance in terms of pearlescent luster and hair stickiness.

Claims (1)

[Claims] 1. (a) 0.1 to 10% by weight of a pearlizing agent, (b) a water-soluble salt, and (c) a natural protein hydrolyzed to have an average molecular weight of 200 to 8,000. an acylated peptide obtained by acylating this peptide with an acylating agent having 6 to 24 carbon atoms, and an alkali metal salt and hydroxyalkyl-substituted ammonium salt of this acylated peptide. More than one species of peptides 0.05-1
A shampoo composition characterized in that it contains 0% by weight. 2. Claim 1, wherein the pearlizing agent is an ethylene glycol fatty acid ester whose fatty acid has 14 to 24 carbon atoms.
The shampoo composition described in .