JP2000327541A - Shampoo composition for hair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shampoo composition for hair having excellent transparency and viscosity stability and exhibiting excellent shampooing performance (cleaning power and rinsing power). SOLUTION: The objective shampoo composition for hair contains (a) a surfactant component and (b) a carboxymethylcellulose salt having an etherification degree of >=2.0 in an amount of 1.0-10 wt.% based on the total weight of the composition. The composition may further contain (c) a cationic resin in an amount of 0.3-7 wt.% based on the total weight of the composition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shampoo composition for hair, and more particularly to a shampoo composition for hair having excellent transparency and viscosity stability and excellent shampoo performance (detergency and rinsing property). It relates to a shampoo composition.

[0002]

2. Description of the Related Art Hair shampoo compositions are cosmetics for cleaning the scalp and hair and keeping the cleaned hair clean and beautiful. Therefore, it is necessary to have not only a detergency but also a conditioning effect and a rinsing effect. In terms of morphology, the liquid type is the mainstream, and the transparent type and the opaque type are commercially available.

[0003] Such a hair shampoo composition comprises a surfactant having a detergency as a main ingredient and an additive having a conditioning effect and a rinsing effect. Usually, as the main surfactant, anionic surfactants, amphoteric surfactants and combinations thereof are used,
A suitable amount of a nonionic surfactant is used as a cleaning aid. Further, excipients for improving conditioning performance, cationic resins for improving rinsing performance, cationic surfactants, components such as silicone, p
Various components such as an H adjuster, a humectant, a sequestering agent, a preservative, a dandruff inhibitor, an ultraviolet absorber, and a fragrance are compounded.

[0004] Of the shampoo compositions for hair, particularly those of the transparent type, it is important to maintain high transparency not only immediately after production, but also during the storage period before use, and it is important to prepare the shampoo composition for production. For reasons of stability and quality control, viscosity stability is also emphasized.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a shampoo composition for hair having excellent transparency and viscosity stability and excellent shampooing performance (detergency and rinsing properties). It is in.

[0006]

DISCLOSURE OF THE INVENTION The present inventors have conducted intensive studies on the transparency and viscosity stability of a shampoo composition for hair by focusing on carboxymethylcellulose. As a result, a specific carboxymethylcellulose is used as a thickener. As a result, it has been found that the transparency and viscosity stability of the hair shampoo composition are significantly improved, and the present invention has been completed.

That is, the present invention comprises (a) a surfactant component and (b) a carboxymethylcellulose salt having a degree of etherification of 2.0 or more. Shampoo composition for hair, characterized in that the amount is 1.0 to 10% by weight based on the total weight of the composition.

Further, the present invention further comprises (c) a cationic resin, wherein the content of the cationic resin is from 0.3 to 7% by weight based on the total weight of the composition. The shampoo composition for hair and the carboxymethylcellulose salt, wherein the shampoo composition for hair has a degree of etherification of 2.2 or more,
Carboxymethylcellulose salt is a 2% by weight aqueous solution.
It is intended to provide the above-mentioned shampoo composition for hair, which has a viscosity at 5 ° C of 10 to 2000 mPa · s.

Further, the present invention provides the shampoo composition for hair according to the present invention, which has a viscosity at 25 ° C. of 200 to 200,000 mPa · s.
A shampoo composition for hair as described above, wherein

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. The shampoo composition for hair of the present invention contains a surfactant and a carboxymethylcellulose salt having a degree of etherification of 2.0 or more. Further, the shampoo composition for hair of the present invention (hereinafter, referred to as shampoo composition or simply composition) further contains a cationic resin.

(Surfactant) The surfactant used in the shampoo composition of the present invention may be any surfactant that imparts detergency to the shampoo composition, and known surfactants can be used. Usually, anionic surfactants, amphoteric surfactants and combinations thereof are used, and nonionic surfactants are used in appropriate amounts as cleaning aids.

Examples of the anionic surfactant include sulfates such as alkyl sulfates, alkyl ether sulfates and alkylamide sulfates, acylmethyltaurine salts, α-sulfates, and the like.
Sulfonates such as olefin sulfonates and sulfosuccinates; carboxylates such as acylglutamate; salts of polymers obtained by polymerizing acidic vinyl monomers or salts thereof; and the like.
Usually lithium, sodium, potassium, rubidium,
Alkali metal salts such as cesium and ammonium salts. Desirably, polyoxyethylene alkyl ether sulfate, fatty acid amide sulfate or α-olefin sulfonic acid ester or a salt thereof, each of which is preferably a sodium salt or a potassium salt.

The acidic vinyl monomer is a compound having an acidic group such as a carboxyl group, a sulfonic acid group and a phosphoric acid group and a polymerizable vinyl group in one molecule. In particular,
Unsaturation such as acrylic acid, methacrylic acid, crotonic acid, vinylbenzoic acid, 2-acrylamido-2-methylpropanesulfonic acid, styrenesulfonic acid, vinylsulfonic acid, allylsulfonic acid, methacrylsulfonic acid, and 3-methacrylpropanesulfonic acid It is an unsaturated dibasic acid such as monobasic acid, itaconic acid, maleic acid and fumaric acid.

Examples of the amphoteric surfactant include betaines such as fatty acid amide alkyl betaines and sulfobetaines. Preferred is laurylhydroxysulfobetaine. In addition, long-chain alkyl amino acids, betaine alkyl acetate, betaine amide acetate, amide amino acid derivatives, imidazolium betaine (an amine oxide type semipolar surfactant), carbobetaine (N-methacryloylethyl-N, N-dimethylammonium- N-methylcarboxybetaine), a polymer or a copolymer of an amphoteric monomer such as phossobetaine and hydroxysulfobetaine.

Examples of the nonionic surfactant include polyoxyethylene, alkyl polyglycoxide, amine oxide, long-chain fatty acid mono- and diethanolamide, sorbitan ester, and fatty acid polyglycol ester obtained by copolymerizing ethylene oxide and propylene oxide. And the like. Desirably, it is polyoxyethylene or alkyl polyglycoxide. In addition, the alkyl polyglycoxides are desirably used in mixtures with anionic surfactants, such as, for example, sulfosuccinates, and other nonionic surfactants.

(Carboxymethylcellulose salt) The carboxymethylcellulose salt (hereinafter simply referred to as CMC) used in the present invention is 2.0 or more, preferably 2.2.
It is important to have the above degree of etherification. CMC
Is usually a lithium salt, a sodium salt, a potassium salt, an ammonium salt and a mixture thereof, but is preferably a sodium salt. The CMC used in the present invention can impart desired transparency and viscosity to the shampoo composition. It also has the effect of increasing the detergency of the surfactant.

When the degree of etherification is less than 2.0, its transparency and viscosity stability are remarkably inferior due to poor chemical resistance, incomplete dissolution in the shampoo composition and gelation. . CMC having an etherification degree of 2.0 or more has excellent chemical resistance and is completely dissolved in the shampoo composition. In addition, even when blended at a high concentration, a shampoo composition having high viscosity and excellent transparency can be obtained since it is not completely dissolved and does not gel. The theoretical maximum of the degree of etherification is 3.0, but it is extremely difficult to produce CMC with a degree of etherification of 3.0.

The CMC used in the present invention is CMC
At 25 ° C. of a 1% by weight aqueous solution of
It is called weight% viscosity. ) Is set to 10 to 2000 mPa · s. When the 1% by weight viscosity is less than 10 mPa · s, the viscosity of the shampoo composition becomes extremely low, so that it is necessary to incorporate a large amount of CMC in order to obtain a high-viscosity shampoo composition. However, there is a problem that various adverse effects occur. on the other hand,
When it exceeds 2000 mPa · s, although a small amount may be sufficient, it is difficult to adjust the viscosity of the shampoo composition,
Also, excellent shampoo performance due to CMC cannot be obtained.

(Cationic Resin) The cationic resin used in the shampoo composition of the present invention is not particularly limited as long as it is water-soluble and physiologically harmless, and known resins can be used. For example, a cationized hydroxyalkyl cellulose can be used. In the shampoo composition containing a cationic resin in addition to the surfactant and CMC, since the hair is anionic, the cationic resin is ionically bonded to the surface of the hair during hair washing to form a film. By doing so, the hair can be protected.

(Shampoo composition for hair) The shampoo composition for hair of the present invention is obtained by dissolving or dispersing the above-mentioned surfactant component and the above-mentioned CMC in water to obtain a cream, gel, emulsion, It is a lotion.
Further, in addition to the above-mentioned surfactant component and CMC, the above-mentioned cationic resin is further blended.

The mixing ratio of the surfactant component is not particularly limited, and is usually 5 to 25% by weight, preferably 10 to 20% by weight as a pure component (active ingredient) based on the total weight of the shampoo composition. It is. If the mixing ratio of the surfactant component is less than 5% by weight, the detergency of the hair is inferior, and if it exceeds 25% by weight, the detergency is not high even though the mixing ratio is high, so it is not economical.

The compounding ratio of CMC is 1.0 to 10% by weight, preferably 2.10% by weight, based on the total weight of the shampoo composition.
0 to 8.0% by weight. When the compounding ratio of CMC is 1.0
If the amount is less than 10% by weight, a high-viscosity shampoo composition cannot be obtained, and excellent shampoo performance due to CMC cannot be obtained. On the other hand, if it exceeds 10% by weight, besides the problem that the hair after washing is never sticky, the detergency of the hair is remarkably reduced and the feeling of use and the texture of the hair after use (moist feeling, smooth feeling, gloss) are also remarkable. There is a problem of lowering.

The proportion of the cationic resin is from 0.3 to 7% by weight, preferably from 0.4 to 6% by weight, based on the total weight of the shampoo composition. If the proportion of the cationic resin is less than 0.3% by weight, a protective film cannot be formed on the surface of the hair, and if it exceeds 7% by weight, a uniform shampoo composition is difficult to obtain, and excessive The disadvantage is that the cationic resin becomes dandruff and remains on the hair.

The shampoo composition of the present invention comprises 25
It has a viscosity of 200 to 200,000 mPa · s, more preferably 1,000 to 10,000 mPa · s at ° C. When the viscosity is less than 200 mPa · s, the spreadability of the shampoo composition on hair during use is poor, and
When it exceeds 0000 mPa · s, it cannot be easily taken out of the container at the time of use, and it is difficult to apply the hair uniformly and thinly. The viscosity of the shampoo composition can be adjusted by appropriately setting the blending ratio of the CMC used in the present invention, the type and blending ratio of other additives.

Further, the hair shampoo composition of the present invention has a hydrogen ion concentration (hereinafter, referred to as pH) of 4 to 7, preferably 4.5 to 6.5. The shampoo composition for hair of the present invention can exhibit excellent shampoo performance by adjusting the pH to 4 to 7. The pH can be an inorganic acid such as phosphoric acid or an organic acid such as ascorbic acid,
It can be adjusted by adding as appropriate.

As described above, the hair shampoo composition of the present invention contains a surfactant component and CMC, and further contains a cationic resin. Other thickeners, cationic surfactants, pH adjusters, humectants, sequestering agents, preservatives, dandruff,
An ultraviolet absorber, a fragrance, a bactericide, an anti-inflammatory agent, a medicinal ingredient such as a vitamin, a higher alcohol, or the like can be appropriately added.

Other thickeners include, for example, sodium alginate, carboxymethylated starch, carboxymethylated tamarind, xanthan gum, carrageenan,
Pectin, furcelan, gum arabic, gatch gum,
Salts such as karaya gum, tragacanth gum, ganten powder, and chitin derivatives such as carboxymethylated chitin can be mentioned.

Examples of the cationic surfactant include stearyltrimethylammonium chloride, distearyldimethylammonium chloride, behenyltrimethylammonium chloride, cetyldimethylbenzylammonium chloride, and the like.
Stearyl benzyl methyl ammonium chloride, 2-chloride
Examples include octyldodecyltrimethylammonium, hexyldecyltrimethylammonium chloride, and branched dialkyldimethylammonium chloride.

The shampoo composition for hair of the present invention can be produced by uniformly dissolving or dispersing the above-mentioned components in water according to a known method. In this case, the solubility or dispersibility in water can be enhanced by previously dissolving the various components in a solvent and then mixing with water. Examples of the solvent include lower alcohols such as ethanol, n-propanol and isopropanol, alkylene glycols such as propylene glycol, dialkylene glycols, trialkylene glycols, and alkyl ethers thereof.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described based on embodiments. In addition,
The present invention is not limited at all by the following Examples. In Examples 1 to 3 and Comparative Examples 1 to 7, shampoo compositions were prepared using the following surfactant, CMC and cationic resin.

(Surfactant) Sodium polyoxyethylene lauryl ether sulfate (manufactured by Nikko Chemicals Co., Ltd.)
A 30% aqueous solution of SBL-3N-27) was used. The number of oxyethylene groups contained is 3.

(CMC) Four kinds of sodium salts of carboxymethyl cellulose (manufactured by Daicel Chemical Industries, Ltd.)
Product name: Ernest Gum FDM, CMC <1140>,
CMC <1260> and CMC <1350>) were used. Table 1 shows the degree of etherification and the 1% by weight viscosity.

[0033]

[Table 1]

(Cationic resin) Cationized hydroxyalkyl cellulose (trade name: Gerner, manufactured by Daicel Chemical Industries, Ltd.) was used.

(Examples 1 to 3)
The surfactant, CMC and cationic resin described above were mixed with purified water and stirred at room temperature for 30 minutes to prepare a shampoo composition. The pH of the shampoo composition is 85%
The phosphoric acid aqueous solution was adjusted by adding 0.02 to 0.03% by weight of phosphoric acid to the entire shampoo composition.
Next, the obtained shampoo composition was allowed to stand at room temperature for 26 days, and changes in its transparency, pH and viscosity were measured. Table 2 shows the measurement results. Transparency represents the average during the standing period, and pH value represents the range of the measured values during the standing period.
In addition, test hair is shampooed using the prepared shampoo composition, and its shampoo performance (cleanability, rinsing property)
Was tested. Table 3 shows the results.

[0036]

[Table 2]

[0037]

[Table 3]

The clarity, pH, viscosity and shampoo performance shown in Tables 2 and 3 were tested using the following test methods. (1) Transparency test method 100 ml of shampoo composition prepared in an Erlenmeyer flask
And allowed to stand at room temperature (10 to 25 ° C.) for 26 days. After the start of standing, the transparency was visually observed. Observation results were represented by ○ (good) when the shampoo composition was turbid and free of suspended matters and precipitates, and represented by x (poor) when turbidity, suspended matters and precipitates were observed.

(2) Test method of pH In a Erlenmeyer flask, 100 ml of the prepared shampoo composition
And allowed to stand at room temperature (10 to 25 ° C.) for 26 days. After the start of standing, a sample is appropriately collected from the Erlenmeyer flask, and its p
The H value was measured.

(3) Viscosity Test Method 100 ml of the prepared shampoo composition was placed in each of six Erlenmeyer flasks and allowed to stand at room temperature (10 to 25 ° C.) for 26 days. 2, 4, 5, 7, 9 and 2 from the start of standing
After a lapse of 6 days, the viscosities of the samples in the Erlenmeyer flask were sequentially measured with a B-type viscometer.

(4) Test method of shampoo performance (i) Test hair Approximately 1 g of black human hair with a length of about 7 cm is bundled, 1 g of the shampoo composition is applied to the bundle, foamed, and rinsed with running water at a temperature of 40 ° C. And then air dried for 3 days. Next, about 0.4 g of a hairdressing material was uniformly applied to obtain test hair. Two types of test hair, a test hair to which a mist type hairdressing agent was applied and a test hair to which a mousse type hairdressing agent was applied, were prepared. The mist type hairdressing agent used was Redken Creative Touch Styling Mist Super Hold (Doraray Redgen Co., Ltd.), and the mousse type hairdressing agent was Ikusu Styling Foam (Hard Type) (Real Chemical Co., Ltd.). . In the following tests (detergency test, rinsing test), three test hairs were used for each bundle, and the obtained results were averaged.

(Ii) Detergency test The test hair prepared using a mist type hairdressing material was air-dried for one day, and then shampooed using the same shampoo composition used for pre-shampooing. As for the detergency, five professional panelists tested the amount of foam during shampooing, the foam quality, and the combability after natural drying, and the results were expressed as average values. The foam amount was represented by （(large foam amount), Δ (normal) and × (small foam amount), and the foam quality was represented by ○ (fine) and × (coarse). Also, combability is
（(Smooth), △ (somewhat bad) and × (bad: caught and not combable). The test hair prepared using the mousse type hair styling was also tested for cleanability in the same manner.

(Iii) Rinsing test A mist-type hairdressing material was applied again to the test hair after the above-mentioned cleaning test, and then naturally dried for 1 day to test its rinsing properties. As for the rinsing property, the remaining feeling of the hair styling and the combability by the tactile sensation were tested by five expert panelists, and the results were expressed as average values. The residual feeling of the hairdressing composition was represented by （(none: no hairdressing composition remains), Δ (slightly present: hairdressing composition remains slightly), and X (present: hairdressing composition remaining). In addition, the combability is similar to the above-described cleaning test,
△, △, ×. Furthermore, after natural drying was continued and 4 days had passed since the hairdressing agent was applied, a rinsing test was performed in the same manner. The test hair after the washing test performed using the mousse type hair styling was also subjected to a rinsing test in the same manner.

(Comparative Examples 1 to 6) Shampoo compositions were prepared in the same manner as in Example 1, except that the mixing ratio of the shampoo composition was changed to the mixing ratio shown in Table 4. Changes in transparency, pH and viscosity were measured for each shampoo composition, and the results are shown in Table 4. The shampoo compositions of Comparative Examples 1, 3 and 5 were further tested for shampoo performance, and the results are shown in Table 3.

[0045]

[Table 4]

Comparative Example 7 A shampoo composition was prepared in the same manner as in Example 1 except that CMC was not used. Next, the shampoo performance was tested, and the results are shown in Table 3.

As is clear from the results in Table 2, Example 1
In each of the shampoo compositions of Nos. 1 to 3, excellent transparency and viscosity stability were observed. The pH hardly changed during the standing period, and was less than 7 in all cases. In particular, as is apparent from Example 2, Ernest Gum FD
The shampoo composition containing 7% by weight of M had a high viscosity and a stable value for a long time. In contrast, the shampoo compositions of Comparative Examples 1 to 4 and Comparative Example 6 shown in Table 4 are excellent in transparency and have a pH of 5.7 to 6.9, but can dissolve CMC. Did not.
Comparative Example 5 containing 2% by weight of CMC <1350> was excellent in transparency and dissolved CMC, but had a pH of 7.0 to 7.8.

Regarding the shampoo performance, as is clear from the results in Table 3, the shampoo composition of Example 1 has excellent shampoo performance (washability, Rinsing). However, the shampoo compositions of Comparative Examples 1, 3, 5, and 7 were all inferior in shampoo performance (cleanability, rinsing properties).

[0049]

As described above in detail and specifically, the hair shampoo composition of the present invention contains a surfactant component and a carboxymethyl cellulose salt having a degree of etherification of 2.0 or more. The content of the carboxymethylcellulose salt is based on the total weight of the composition.
1.0 to 10% by weight, and further contains a cationic resin, and the content of the cationic resin is 0.3 to 7% by weight based on the total weight of the composition. is there. With such a configuration, the hair shampoo composition of the present invention has excellent transparency and viscosity stability, and also has an effect that it can have excellent shampoo performance (detergency and rinsing properties). Play.

Continued on the front page F term (reference) 4C083 AC692 AD131 AD132 AD271 AD272 BB01 CC38 DD01 EE01 EE07 4J002 AB03X AB03Y BC10W BG01W BG07W BG12W CH05W EN136 EV186 EV256 FD31W FD316 GB00 GC00

Claims (6)

[Claims] 1. A surfactant component comprising: (a) a surfactant component;
A carboxymethyl cellulose salt having the above degree of etherification, wherein the content of the carboxymethyl cellulose salt is 1.0 to 10% by weight based on the total weight of the composition. Composition. 2. The composition according to claim 1, further comprising (c) a cationic resin, wherein the content of the cationic resin is 0.3 to 7% by weight based on the total weight of the composition. Item 4. A shampoo composition for hair according to item 1. 3. The carboxymethylcellulose salt,
3. The shampoo composition for hair according to claim 1, having a degree of etherification of 2.2 or more. 4. The carboxymethyl cellulose salt according to claim 1,
The viscosity at 25 ° C. of the aqueous solution of 10% by weight is 10 to 2000 m.
The shampoo composition for hair according to any one of claims 1 to 3, which is Pa · s. 5. A viscosity at 25 ° C. of 200 to 2000.
The shampoo composition for hair according to any one of claims 1 to 4, wherein the shampoo composition is 00 mPa · s. 6. The shampoo composition for hair according to claim 1, wherein the hydrogen ion concentration is 4 to 7.