JPH01131109A - Hair cosmetic sheet - Google Patents

Abstract

PURPOSE:To obtain a hair cosmetic sheet exhibiting excellent stability against heat and light over a long period and having extremely excellent portability, by drying and forming a thin film of a hair cosmetic composition containing a film-forming water-soluble polymer. CONSTITUTION:A hair cosmetic composition containing one or more film- forming water-soluble polymers preferably selected from natural polymers, cellulose derivatives, vinyl or vinylidene polymers and cationic polymers is dried and converted into a thin film to obtain the objective hair cosmetic sheet preferably having a thickness of 0.01-5mm and a size of 2cmX3cm-6cmX15cm and having a laminated form or a form sandwiched between the above water-soluble polymer layers. The cosmetic is stable against heat and light and has excellent portability because of its non-bulkiness and packageability into a light-weight package. It can accelerate the drying of hair when applied to shampooed hair.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a novel hair cosmetic, and more particularly to a sheet-shaped hair cosmetic with good stability and portability.

(Prior art) Ester oils such as oleic acid, linoleic acid, vitamins C and E, protein hydrolysates, and cetyl lactate, which have been traditionally used in cosmetics, are extremely unstable to heat and light and are susceptible to oxidation. and hydrolysis. Furthermore, if dimethyl silicone or the like is emulsified, it becomes extremely unstable to heat and may separate. Therefore, when used as a base component of cosmetics, it becomes unstable over time and cannot exhibit its original effect. This tendency is particularly noticeable in hair cosmetics containing a large amount of water, and discoloration, off-odor, separation, etc. occur due to decomposition, making it impossible to obtain a desirable product. For this reason, attempts have been made to stabilize it by adding antioxidants or making it into derivatives, but at present the objective has not yet been fully achieved.

Furthermore, since hair cosmetics are usually packaged in bottles, cans, etc., they are bulky and heavy, making them difficult to carry. It is possible to dry this hair cosmetic to make it solid, but this alone has poor stability and moldability.

(Problems to be Solved by the Invention) The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sheet-shaped hair cosmetic having excellent stability and portability.

(Means for Solving the Problems) That is, the present invention is a sheet-like hair cosmetic prepared by drying a hair cosmetic composition containing a water-soluble polymer having a film-forming ability to form a thin film.

Water-soluble polymers applicable to the present invention include natural polymers, cellulose derivatives, vinyl or vinylidene polymers, and cationic polymers.

Examples of natural polymers include α-1,6-maltotriose, starches, gelatin, casein, mannan, galactan, and sodium alginate.

Specific examples of cellulose derivatives include carboxymethyl cellulose, methyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose.

Examples of vinyl or vinylidene polymers include the following.

(a) Water-soluble polyvinylpyrrolidone polymers such as polyvinylpyrrolidone and copolymers of vinylpyrrolidone and vinyl acetate; (b) Acidic polyvinyl ethers such as lower alkyl half esters of copolymers of methyl vinyl ether and maleic anhydride. Water-soluble polymer compound' (c) Acidic polyvinyl acetate-based water-soluble polymer compound such as a copolymer of vinyl acetate and crotonic acid (d) Acrylic acid alkyl ester copolymerized with a small amount of acrylic acid, methacrylic acid, etc. - Acidic acrylic water-soluble polymer compounds such as methacrylic acid alkyl ester copolymers (e) Carboxyvinyl polymers Among these water-soluble polymer compounds, those with acid groups may have some or all of their acid groups removed. It is preferable to use it after neutralization. There are no particular restrictions on the basic substance used for neutralization, but preferred examples include monoethanolamine, jetanolamine, triethanolamine, and 2-amino-
Examples include organic or inorganic bases such as 2-methylpropanol, 2-amino-2-methyl-1,3-propanediol, triisopropanolamine, sodium hydroxide, potassium hydroxide, ammonia, and basic amino acids.

As the cationic polymer, (a) the following general formula (1) is used.
- Polymer of diallyl quaternary ammonium salt represented by (4), (b) cationic cellulose and cationic starch represented by general formula (5), and (c) general formula (6) -
There is a cationic vinyl polymer represented by (8).

(a) Polymer of diallyl quaternary ammonium salt General formula (
1) (However, R1 and R2 are independently hydrogen or carbon number 1)
~18, preferably 1 to 4 alkyl groups, R3 and R4
are independently hydrogen, an alkyl group having 1 to 3 carbon atoms, or a phenyl group; An organic acid residue such as sulfuric acid or hydroxycarboxylic acid, al is an integer giving a molecular weight of 10,000 to 1,000,000. ) General formula (2) (However, R1, R2, R3, R4, X2 e, and a
l is the same as that in general formula (1). ) General formula (3) (Tatashi, R1, R2, R3, R4, X2e and al are each the same as that of general formula (1), R2 and R3 are 1
It is an integer giving a molecular weight between 10,000 and 1,000,000. ) General formula (4) (Tatashi, R1, R2, R3, R4, X2e and al are each the same as that of general formula (1), R2 and R3 are each the same as that of general formula (3).) ) Cationic cellulose or cationic starch General formula (5) (However, R1 is a cellulose residue or a starch residue, R
2 is an alkylene group or a hydroxyalkylene group, R3,
R4 and R5 are each independently an alkyl group, an aryl group,
Aralkyl groups, or those that contain a nitrogen atom in the formula to form a heterocycle, X3e is an anion (chlorine, bromine,
R4 represents a positive integer. ). The preferred molecular weight of cationic cellulose and cationic starch is 10,000 to 1,000,000.

(c) Cationic vinyl polymer general formula (6) (However, R1 and R2 are independently hydrogen, carbon number 1
-6 alkyl group or phenyl group, al and X
2e is the same as that of general formula (1). ) General formula (7) (However, R1 is hydrogen or a methyl group, R2 is oxygen or an NH group in an amide bond, R3, R4, and R5 are each independently hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted alkyl group) , R5 represents an integer of 1 to 10, al and X3e are the same as those in general formula (1) and general formula (5), respectively.) General formula (8) (However, R1, R2 and R3 are represents hydrogen or an alkyl group or substituted alkyl group having 1 to 2 carbon atoms,
al and X3e are the same as those in general formulas (1) and (5), respectively. ) Among the water-soluble polymers listed above,
Considering stability, portability and solubility in water, α-1
, 6-maltotriose, cationic cellulose, and polyvinylpyrrolidone are particularly preferred. The amount of water-soluble polymer blended is preferably 0.3% by weight or more based on the total amount of the hair cosmetic composition. This is because if the amount is less than 0.3% by weight, stability and portability tend to deteriorate.

The thickness of the sheet is preferably 0.01 to 5 mm.

If it is less than 0.01mm, stability and portability will be poor, and if it is less than 5M
This is because portability and solubility in water tend to deteriorate even if the amount exceeds this amount. More preferably, the thickness of the sheet is 0.02
~2M is good. The size of the seat is based on portability.
2 cm x 3 cm to 6a x 15a is preferred. It is also possible to stack the sheet-like hair cosmetics, or to sandwich them from both sides with the polymer in order to further improve the stability.

The following optional ingredients can be incorporated into the sheet-like hair cosmetic of the present invention within a range that does not affect the effects of the present invention. That is, for example, silicon derivatives such as dimethylpolysiloxane POE (abbreviation for polyoxyethylene, the same hereinafter) copolymer, dimethylpolysiloxane POP (abbreviation for polyoxypropylene, the same hereinafter)/POE copolymer, and amino-modified polysiloxane. , protein hydrolysates, e.g. polyhydric alcohols such as propylene glycol, glycerin, polyethylene glycol, e.g. POP-P
Hydrophilic oil agents such as OE butyl ether, POP methyl glucose ether, POE methyl glucose ether,
For example, parabens, chlorhexidine gluconate, antiseptics such as triclosan, cooling agents such as nomenthol, higher fatty acids, vitamins, herbal medicines, anionic surfactants, cationic surfactants, amphoteric surfactants, ultraviolet absorbers, Antioxidants, such as solvents such as ethanol and isopropanol, dyes, fragrances, and the like.

(Effects of the Invention) According to the present invention, a sheet-shaped hair cosmetic that exhibits excellent stability against heat and light for a long period of time can be obtained. Furthermore, this sheet-shaped hair cosmetic can be packaged in a much lighter package than conventional bottles or cans, making it extremely portable.

Further, when a hair styling product containing the above-mentioned polymer is used after hair washing, there are many advantages such as speeding up the drying of the hair and being able to style the hair.

(Example) Next, Examples and Comparative Examples of the present invention will be shown to explain the effects of the present invention more specifically. Note that the numerical values shown in the table below indicate the blending amount (parts). "Remaining part" indicates the remaining number of parts when the total amount is 100 parts. In addition, all of the Examples described in the table below were obtained by emulsifying or dissolving in a solvent such as water or ethanol, and then drying it to form a sheet.

Prior to explaining each category, the test methods adopted for each category will be explained.

[1] Stability Stability was evaluated by odor and peroxide value.

(1) Odor The samples were stored in a constant temperature bath at 45° C. for 3 days to perform a deterioration acceleration test, and then the stability of the odor was evaluated. Judgments were made by three experienced olfactory sensory judges based on the following criteria, and are shown as average evaluations.

O: No change in odor Δ: Slight change in odor After storage, the peroxide value was determined by δ-1, and the initial peroxide value was subtracted to determine the amount of increase in the peroxide value.

[2] Portability Portability was evaluated based on ease of holding, moldability, and durability.

(1) Portability (weight, size) A sensory test was conducted on the hair cosmetic by 20 panelists to evaluate its ease of holding. The ease of holding was evaluated based on the following criteria.

O... Light, small and easy to hold Δ...
Slightly heavy or large, making it difficult to hold X: Heavy or large, making it difficult to hold.

(2) Moldability The moldability of the hair cosmetic was determined by the ease with which a sheet could be formed using the following criteria.

O... easily becomes a sheet.

△・・・・・・Difficult to form into a sheet.

X...It doesn't become a sheet.

(3) Durability The degree of deformation when the hair cosmetic was carried was evaluated using the following criteria.

O...... hardly deforms.

△... Slight deformation.

X: Large deformation.

Examples 1 to 7 Sheet-shaped shampoos having the compositions shown in Table 1 were prepared, and their stability and portability were evaluated. From this table, the IP! Alternatively, a sheet shampoo with good stability and portability can be obtained from the composition of the present invention containing two or more types, but in the case of lacking any of these (Comparative Examples 1 and 3), and in the case of a liquid ( It can be seen that in Comparative Example 2), a sheet-shaped shampoo with good stability and portability cannot be obtained.

Table 2 shows sheet conditioners, Tables 3 and 4 show hair styling products, and Table 5 shows hair tonics, and the stability and portability of the products are shown in the same way as in Table 1.

The same can be said about the test results as in Table 1.

Kunio Ogawa, Commissioner of the Patent Office 1. Indication of the case Japanese Patent Application No. 62-288742 2 Name of the invention Sheet-shaped hair cosmetics 3 Person making the amendment Relationship to the case Patent applicant (676) Lion Co., Ltd. 4 Agent 7 Contents of the amendment (1 ) Page 14, line 10 and page 15, line 5 of the specification
Correct rXJ in rows 11 and 17 to "x".

(2) Tables 1 to 5 on pages 17 to 21 of the specification are corrected as shown in the attached sheet.

Claims (5)

[Claims] (1) A sheet-shaped hair cosmetic prepared by drying a hair cosmetic composition containing a water-soluble polymer having film-forming ability to form a thin film. (2) The water-soluble polymer is one or more selected from the group consisting of natural polymers, cellulose derivatives, vinyl or vinylidene polymers, and cationic polymers. Sheet-shaped hair cosmetics. (3) The thickness of the sheet is 0.01 to 5 mm and the size is 2
The sheet-shaped hair cosmetic according to claim 1 or 2, which has a size of cm x 3 cm to 6 cm x 15 cm. (4) The sheet-shaped hair cosmetic according to any one of claims 1 to 3, wherein the sheet is in a laminated form. (5) The sheet-shaped hair cosmetic according to any one of claims 1 to 4, wherein the sheet-shaped hair cosmetic is sandwiched from both sides by the water-soluble polymer.