JP2019019074A - Hair cleansing composition - Google Patents

Abstract

To provide hair cleansing compositions excellent in the balance of the effect of foaming easiness during shampooing, grain feeling in the scalp during shampooing, suppression of friction during rinsing, and refresh feel in the scalp after rinsing, while retaining particles stately during shampooing.SOLUTION: Provided is a hair cleansing composition containing a component (A): an anionic surfactant, a component (B): a cationized polysaccharide, a component (C): an anionic polymer, and a component (D): a particle, the content of the component (C) being 1.2 mass% or more to 2.5 mass% or less with respect to the entire hair cleansing composition, and the mass ratio ((C)/(D)) of the content of the component (C) with respect to the content of the component (D) being 0.08 or more to 0.83 or less.SELECTED DRAWING: None

Description

  The present invention relates to a hair cleansing composition.

As a technique for blending a water-insoluble material into a cleaning agent used for skin and hair, there are those described in Patent Documents 1 to 3.
Patent Document 1 (Japanese Patent Publication No. 2003-530446) discloses a sufficiently stabilized aqueous solution with respect to, for example, various silicones, oily materials, pearlescent materials, cationic hair dyes, and other substantially insoluble materials. As a technique for obtaining a surfactant composition, a stable aqueous composition comprises a substantially cross-linked alkali swellable acrylate copolymer rheology modifier, water, an alkaline material, and a substantially insoluble compound. And an effective amount of acidic material that stabilizes or suspends the composition in the composition. The document also describes that the composition contains at least one substantially insoluble material that requires suspension or stabilization.

  Patent Document 2 (Japanese Patent Application Laid-Open No. 2006-282659) describes a cleaning composition containing a specific disintegrating particle for a cleaning agent, a water-soluble salt, a specific surfactant and water. The agent composition has a high detergency and is said to be excellent in feeling of use without any foreign object feeling during massage.

  Patent Document 3 (Japanese Patent Laid-Open No. 2014-109003) describes a detergent composition in which a specific amount of pigment granules containing a specific amount of water-insoluble pigment is blended, and bubbles in use are colored. ing. And according to this detergent composition, while satisfying both abundant foaming and formulation stability, the coloring to the formulation (bulk) is suppressed without impairing the user's motivation, and sufficient coloring property to the foam It is said that it is possible to provide an excellent cleaning composition that can provide a comfortable feeling to the user and a method for producing the same.

Japanese translation of PCT publication No. 2003-530446 JP 2006-282659 A JP 2014-109003 A

  However, in recent years, consumer needs have increased, and when the above-described technology is used, particles are stably retained in the hair cleaning agent, ease of foaming during hair washing, graininess of the scalp during hair washing, and rinsing It has been found that there is room for improvement in terms of obtaining a hair cleanser that is excellent in the balance between suppression of squeaking and cleanliness of the scalp after rinsing.

According to the present invention,
The following components (A) to (D):
A hair cleansing composition comprising (A) an anionic surfactant, (B) a cationized polysaccharide, (C) an anionic polymer, and (D) particles,
Content of the said component (C) is 1.2 mass% or more and 2.5 mass% or less with respect to the said whole hair cleaning composition,
Provided is a hair cleansing composition wherein the mass ratio ((C) / (D)) of the content of the component (C) to the content of the component (D) is 0.08 or more and 0.83 or less. The

  According to the present invention, the particles are stably retained in the hair cleansing agent, ease of foaming at the time of shampooing, graininess of the scalp at the time of shampooing, suppression of squeaking at the time of rinsing, and cleansing of the scalp after rinsing A hair cleanser with an excellent balance of feeling can be obtained.

Hereinafter, embodiments of the present invention will be described with specific examples of each component. Each component can be used alone or in combination of two or more.
The hair cleansing composition in the present embodiment includes the following components (A) to (D).
(A) anionic surfactant (B) cationized polysaccharide (C) anionic polymer, and (D) particles And in the hair cleansing composition in the present embodiment, the content of component (C) is: It is 1.2 mass% or more and 2.5 mass% or less with respect to the whole hair cleaning composition, Mass ratio ((C) / (D) of content of component (C) with respect to content of component (D) ) Is 0.08 or more and 0.83 or less.

(Ingredient (A))
Component (A) is an anionic surfactant.
Component (A) may be any component that can be used in a hair cleansing composition, and specific examples thereof include alkyl sulfates, alkenyl sulfates, polyoxyalkylene alkyl ether sulfates, polyoxyalkylene alkenyl ether sulfates, sulfosuccinates. Sulfate-type anionic surfactants such as acid alkylene alkylphenyl ether sulfates; Sulfonic acid-type anionic surfactants such as sulfosuccinic acid alkyl ester salts, polyoxyalkylene sulfosuccinic acid alkyl ester salts, alkane sulfonates; higher fatty acids Salts; and carboxylic acid type anionic surfactants such as polyoxyalkylene alkyl ether carboxylic acids and amino acid surfactants. The hair cleansing composition may contain one type of component (A) or two or more types.

The component (A) is preferably a sulfate-type surfactant from the viewpoint of improving foaming, from the viewpoint of improving foam breakage, from the viewpoint of suppressing hair squeaking during rinsing, and from the viewpoint of suppressing hair squeaking during rinsing. And at least one selected from the group consisting of carboxylate surfactants, more preferably polyoxyalkylene alkyl ether sulfates, polyoxyalkylene alkenyl ether sulfates and amino acid surfactants. 1 or 2 or more types selected from the group, more preferably 1 or 2 or more types selected from the group consisting of polyoxyalkylene alkyl ether sulfates and amino acid surfactants, and even more preferably Selected from the group consisting of polyoxyethylene alkyl ether sulfates and amino acid surfactants And one or more compounds, especially preferably a polyoxyethylene alkyl ether sulfate and an amino acid-based surfactant, especially preferably a polyoxyethylene alkyl ether sulfates and glutamate-based surfactant.
When the hair cleaning composition contains a polyoxyalkylene alkyl ether sulfate such as polyoxyethylene alkyl ether sulfate and an amino acid-based surfactant, the viewpoint of improving foaming, the viewpoint of improving defoaming, the hair at the time of rinsing Mass ratio of polyoxyethylene alkyl ether sulfate to amino acid surfactant (polyoxyethylene alkyl ether sulfate / amino acid surfactant) from the viewpoint of suppressing hair squeaking and hair squeezing during rinsing Is preferably 9.5 / 0.5 to 6.0 / 4.0, more preferably 9.0 / 1.0 to 7.0 / 3.0.
Hereinafter, among the component (A), the polyoxyalkylene alkyl ether sulfate and the amino acid surfactant will be described more specifically.

Among the components (A), as the polyoxyalkylene alkyl ether sulfate, a polyoxyethylene alkyl ether sulfate represented by the following general formula (1) is preferable from the viewpoint of improving foaming.
R ¹ O (CH ₂ CH ₂ O) _a SO ₃ M (1)
(In the above general formula (1), R ¹ represents an alkyl group or alkenyl group having 8 to 18 carbon atoms, M represents an alkali metal, alkaline earth metal, ammonium, alkanolamine or basic amino acid, and a represents (This is the average number of moles of ethylene oxide added and represents a number of 0.5 to 5 in terms of mass average.)

Among these, from the viewpoint of achieving both quick foaming and good foam feel, it is preferable that R ¹ in the general formula (1) is an alkyl group having 12 to 14 carbon atoms. The average added mole number a of ethylene oxide is preferably 0.9 or more and 4 or less, and more preferably 1 or more and 3 or less. Furthermore, polyoxyethylene alkyl ether sulfates in which M is ammonium or sodium are preferred, and at least one selected from ammonium laureth sulfate and sodium laureth sulfate is more preferred.

  The content of the polyoxyalkylene alkyl ether sulfate in the hair cleaning composition is preferably 5% by mass or more, more preferably 6%, based on the total amount of the hair cleaning composition, from the viewpoint of further improving foaming. It is at least 8% by mass, more preferably at least 8% by mass, even more preferably at least 9% by mass. In addition, from the viewpoint of improving defoaming and suppressing the squeaking of hair during rinsing, the content of polyoxyalkylene alkyl ether sulfate with respect to the entire hair cleaning composition is preferably 20% by mass or less, and more It is preferably 17% by mass or less, more preferably 15% by mass or less, still more preferably 13% by mass or less, and still more preferably 12.5% by mass or less.

In addition, among the component (A), specific examples of the amino acid surfactant include glutamic acid surfactant, aspartic acid surfactant, alanine surfactant, glycine surfactant, sarcosine surfactant, Examples include taurine surfactants.
Of these, as glutamic acid surfactants, coconut oil fatty acid acyl-L-glutamic acid, lauroyl-L-glutamic acid, myristoyl-L-glutamic acid, stearoyl-L-glutamic acid and salts thereof (for example, sodium N-lauroylglutamate, cocoyl) And triethanolamine glutamate (cocoyl glutamate TEA)).
Examples of aspartic acid surfactants include lauroyl-L-aspartic acid and salts thereof.
Specific examples of the alanine surfactant include coconut oil fatty acid methylalanine, lauroylmethylalanine, myristoylmethylalanine, and salts thereof.
Specific examples of the glycine surfactant include coconut oil fatty acid acylglycine and salts thereof.
Specific examples of the sarcosine surfactant include coconut oil fatty acid sarcosine, lauroyl sarcosine, and salts thereof.
Specific examples of the taurine surfactant include N-coconut oil methyl taurine sodium and lauroyl methyl taurine sodium.
Specific examples of salts in these surfactants include alkyl metals such as sodium and potassium; alkaline earth metals such as calcium and magnesium; ammonium; organic amines such as monoethanolamine, diethanolamine and triethanolamine. Can be mentioned.

  The amino acid-based surfactant is preferably one or more selected from the group consisting of glutamic acid-based surfactants and taurine-based surfactants, more preferably from the viewpoint of suppressing hair squeaking during rinsing. One or more selected from glutamic acid surfactants, more preferably cocoyl glutamate, and still more preferably cocoyl glutamate TEA.

  The content of the amino acid surfactant in the hair cleaning composition is preferably 0.5% by mass or more with respect to the entire hair cleaning composition from the viewpoint of suppressing squeaking of the hair during rinsing. More preferably, it is 1% by mass or more, more preferably 1.5% by mass or more, and from the viewpoint of easy foaming during hair washing, it is preferably 6% by mass or less, more preferably 5% by mass or less, Preferably it is 4 mass% or less.

  In addition, the content of the entire component (A) in the hair cleaning composition is preferably 5% by mass or more, more preferably 6%, based on the entire hair cleaning composition, from the viewpoint of further improving foaming. It is at least 8% by mass, more preferably at least 8% by mass, even more preferably at least 10.0% by mass. Further, from the viewpoint of improving the foaming out and suppressing the squeaking of the hair during rinsing, the content of the component (A) with respect to the entire hair cleaning composition is preferably 20% by mass or less, more preferably 17%. It is at most 15% by mass, more preferably at most 15% by mass, even more preferably at most 13% by mass.

(Ingredient (B))
Component (B) is a cationized polysaccharide. Examples of the component (B) include water-soluble compounds containing an amino group or an ammonium group in the side chain of the polysaccharide polymer chain, or a diallyl quaternary ammonium salt as a constituent unit.
Specific examples of component (B) include cationized polymers having a cellulose skeleton such as cationized cellulose, cationized hydroxyethyl cellulose, and cationized hydroxypropyl cellulose; cationized starch; cationized guar gum, cationized tara gum, cationized fenugreek gum, And cationized galactomannans such as cationized locust bean gum.

  Component (B) preferably includes one or more selected from the group consisting of a cationized polymer having a cellulose skeleton and a cationized galactomannan, more preferably a cation, from the viewpoint of suppressing squeaking during rinsing. One or more selected from the group consisting of cationized hydroxyethyl cellulose and cationized guar gum are included, and cationized hydroxyethyl cellulose or cationized guar gum is more preferable. As the cationized hydroxyethyl cellulose, those referred to as polyquaternium-10 by INCI, and as the cationized guar gum, those referred to as guar hydroxypropyltrimonium chloride by INCI are preferable.

Of these, specific examples of the cationized cellulose include polyquaternium-10. Examples of commercially available cationized cellulose include Kachinal HC-200 manufactured by Toho Chemical Industry Co., Ltd. and UCARE series manufactured by Dow Chemical Co., for example, UCARE JR125, UCARE LR400, UCARE JR400, UCARE JR30M, and UCARE LR30M.
A specific example of the cationized guar gum is guar hydroxypropyltrimonium chloride. Commercial products of cationized guar gum include Jaguar (registered trademark) series manufactured by Solvay, for example, Jaguar C-13S, Jaguar C-14S, Jaguar C-17; Labor gum CG-M manufactured by DSP Gokyo Food & Chemical Co., Ltd. Etc.

  The content of the component (B) in the hair cleaning composition is preferably 0.01% by mass or more, more preferably 0, based on the entire hair cleaning composition from the viewpoint of suppressing squeaking during rinsing. 0.05% by mass or more, more preferably 0.1% by mass or more, and still more preferably 0.3% by mass or more. Further, from the viewpoint of easy foaming during hair washing, the content of the component (B) in the hair cleaning composition is preferably 3% by mass or less, more preferably 1%, based on the whole hair cleaning composition. % By mass or less, more preferably 0.8% by mass or less, and still more preferably 0.5% by mass or less.

(Ingredient (C))
Component (C) is an anionic polymer. More specifically, component (C) is an anionic polymer having a carboxyl group, and a polyacrylate that is a polymer obtained by polymerizing a monomer having a carboxyl group such as acrylic acid or methacrylic acid is preferred. In addition, the component (C) may be a polymer obtained by copolymerization of monomers such as acrylic acid and methacrylic acid, and other monomers having a polymerizable group such as an unsaturated bond that is hydrophobic. Furthermore, what contained the crosslinking agent may be used.

  Specifically, as component (C), poly (meth) acrylic acid, carboxyvinyl polymer, alkyl acrylate / alkyl methacrylate / polyoxyethylene (20) stearyl ether copolymer (INCI: ACRYLATES / STEARETH-20 METHACRYLATE COPOLYMER), alkyl acrylate, alkyl methacrylate, polyoxyethylene (25) lauryl ether copolymer (INCI: ACRYLATES / LAURETH-25 METHACRYLATE COPOLYMER), alkyl acrylate, alkyl methacrylate, polyoxyethylene (25) behenyl ether Copolymer (INCI: ACRYLATES / BEHENETH-25 METHACRYLATE COPOLYMER), acrylic acid / alkyl methacrylate copolymer (INCI: ACRYLATES / C10-30 ALKYL ACRYLATE CROSSPOLYMER), acrylic acid / vinyl neodecanoate copolymer (INCI: ACRYLATES) / VINYL NEODECANOATE CROSSPOLYMER), (alkyl acrylate, oct Copolymer (INCI: ACRYLATES / OCTYLACRYLAMIDE COPOLYMER), (Acrylates / Steareth-20 ITACONATE COPOLYMER), (ACRILATES / ITEARCONATE-20) Copolymer (INCI: ACRYLATES / CETETH-20 ITACONATE COPOLYMER), (acrylates / amino acrylate / C10-30 acrylic PEG-20 itaconic acid) copolymer (INCI: ACRYLATES / AMINOACRYLATES / C10-30ALKYL PEG-20 ITACONATE COPOLYMER), alkyl methacrylates (C1-C4 and C8) ), A cross-linked copolymer composed of two or more monomers selected from the group consisting of acrylic acid and methacrylic acid.

  These polymers include Aculin 88, Aculin 22, Aculin 28, Aculin 38 (above, manufactured by Rohm and Haas Japan), Carbopol 980, Carbopol 981, Carbopol ETD2020, Carbopol Ultrez 21, Carbopol Ultrez 20, Carbopole Ultrez 10, Carbopole Aqua SF-1, PEMULEN TR-1, PEMULEN TR-2, Carbopole EZ4, Carbopole EZ5, Carbopole 1342, Carbopole 1382, Carbopole ETD2020 (above, manufactured by Lubrizol) ), STRUCTURE 2001, STRUCTURE 3001, STRUCTURE PLUS, DERMACRYL 79 (manufactured by Nippon SC Co., Ltd.), Jurimer, Aron Bis, Junron, and Leogic from Nippon Pure Chemicals, Inc. can be used.

  Among these, from the viewpoint of increasing the ease of foaming during shampooing and suppressing the squeaking of hair during rinsing, a polymer obtained by copolymerization with a monomer having a polymerizable group such as an unsaturated bond that is hydrophobic is used. preferable. Specifically, at least one selected from a cross-linked copolymer composed of two or more monomers selected from the group consisting of alkyl methacrylates (C1 to C4 and C8), acrylic acid and methacrylic acid, or acrylic acid And a polymer containing a copolymer of alkyl acrylate (alkyl chain having 10 to 30 carbon atoms), preferably two or more kinds selected from the group consisting of alkyl methacrylate (C1 to C4 and C8), acrylic acid and methacrylic acid More preferable is at least one selected from cross-linked copolymers composed of monomers, and cross-linked types composed of two or more monomers selected from the group consisting of alkyl methacrylates (C1 to C4 and C8) and acrylic acid. More preferred are copolymers.

In addition, when a component (C) is an acid, it is preferable to use it as a salt (pH 6.5 vicinity). Specific examples of the salt include sodium salt, potassium salt, and triethanolamine salt.
Moreover, in this embodiment, content of a component (C) is the quantity as an acid.

  The content of the component (C) in the hair cleansing composition is to suppress sedimentation in the composition of the component (D) described later, and from the viewpoint of stably maintaining the component (D) in the composition, It is 1.2 mass% or more with respect to the whole hair cleaning composition, Preferably it is 1.4 mass% or more, More preferably, it is 1.6 mass% or more. Further, from the viewpoint of increasing the ease of foaming during shampooing and suppressing the squeaking of hair during rinsing, the content of component (C) in the hair cleaning composition is 2 with respect to the entire hair cleaning composition. It is 0.5 mass% or less, preferably 2.3 mass% or less, more preferably 2.0 mass% or less.

(Component (D))
Component (D) is a particle. Specifically, the component (D) is a feel-imparting particle that is a material that imparts a grain feeling (scrubbing feeling) during hair washing, and is in the form of particles called a scrub agent or bead particles.

More specifically, the component (D) is water-insoluble particles, and examples of the material thereof include inorganic powder and organic powder. Specific examples of the inorganic powder include titanium oxide, talc, kaolin, bentonite, sodium chloride, silica, mica titanium, mica coated with titanium dioxide, mica coated with iron oxide, mica coated with bismuth oxychloride, etc. The powder is mentioned. Specific examples of organic powders include particles such as ethylene glycol monostearate, ethylene glycol distearate, polyethylene glycol distearate, myristyl myristate, guanine, glitter (polyester or metallic) and mixtures thereof, May have iridescence; cellulosic particles such as cellulose, powdered cellulose, crystalline cellulose and other saccharide particles; silicone powder; silk powder; hemp fiber powder; and polyethylene, polypropylene, polyethylene oxide, ethylene Synthetic polymer powders such as acrylic acid copolymer, polystyrene, nylon, acrylic resin and the like.
The particle size of these water-insoluble particles is preferably 50 μm or more, more preferably 70 μm or more, and preferably 800 μm or less, more preferably 500 μm or less, from the viewpoint of the balance between the grain feel during washing and ease of washing. It is.

In addition, a granulated powder in which the above-described water-insoluble particles are used as primary particles and a plurality of powders are bonded using a binder (binder) can also be used. These particles are disintegrating particles in which the particles are disintegrated by water used during washing or rinsing.
The component (D) preferably contains the disintegrating particles from the viewpoint of achieving both the grain feel of the scalp during shampooing, the clean feeling of the scalp after rinsing, and the suppression of hair squeaking during rinsing. As the disintegrating particles, for example, disintegrating particles described in JP-A No. 2000-63899 are preferable.
Hereinafter, the disintegrating particles will be described more specifically.

A disintegrating particle is an agglomerated particle formed by aggregating at least a part of water-insoluble primary particles, and the agglomeration disintegrates in a water-soluble salt-containing aqueous solution due to a decrease in water-soluble salt concentration. . That is, the disintegration rate of the disintegrating particles is higher when the water-soluble salt concentration is low than when the water-soluble salt concentration is high.
In addition, since at least a part of the disintegrating particles is water-insoluble, the hair cleansing composition in the present embodiment includes at least a part of the water-insoluble particles.

The primary particles constituting the disintegrating particles may be at least partially water-insoluble, and examples thereof include water-insoluble primary particles and combinations of water-insoluble primary particles and water-soluble primary particles. These primary particles may be organic particles or inorganic particles.
Here, “water-insoluble” means that when 1 part by mass of the target particles is dissolved in 99 parts by mass of water at 25 ° C., the solubility is less than 50% by mass. The term “water-soluble” means that the solubility under the above conditions is 50% by mass or more. The solubility is calculated from the solid content in the filtrate obtained by filtering the aqueous solution of the target particles with a filter paper (No. 2). As the water-soluble primary particles, those having the solubility of 90% by mass or more are preferable.

Specific examples of the material of the water-insoluble primary particles constituting the disintegrating particles include the inorganic powder and the organic powder described above as examples of the water-insoluble particles.
Of these, polyethylene, polyamide, polystyrene, sodium poly (meth) acrylate, poly (meth) acrylate, cellulose and derivatives thereof, starch, and the like are preferably used as the water-insoluble organic primary particles. Here, polyacrylic acid and polymethacrylic acid are collectively referred to as “poly (meth) acrylic acid”. In addition, bentonite, talc, mica, kaolin, silica and the like are preferably used as the water-insoluble inorganic primary particles.

There is no restriction | limiting in the shape of these water-insoluble primary particles, A perfect spherical shape or a substantially spherical shape may be sufficient, and the thing of the irregular shape obtained by grinding | pulverization etc. may be sufficient. Further, the water-insoluble primary particles may be solid particles or hollow or porous particles.
Component (D) may contain one type of water-insoluble primary particles constituting the disintegrating particles, or may contain two or more types.

In addition, the component (D) may further contain one type or two or more types of water-soluble primary particles.
When the disintegrating particles include water-soluble primary particles, the water-soluble primary particles are preferably inorganic particles such as sodium chloride, potassium chloride, magnesium chloride, and sodium carbonate. The shape of these water-soluble primary particles is not limited.

  The mass ratio of the water-insoluble primary particles to the water-soluble primary particles in the disintegrating particles is determined from the viewpoints of graininess of the scalp during shampooing, suppression of hair squeaking during rinsing, and reduction of particle persistence during rinsing ( (Water-insoluble primary particles) / (water-soluble primary particles)) = 1/99 to 100/0 is preferable.

The average particle diameter of these primary particles is preferably 40 μm or more, more preferably 50 μm or more, from the viewpoint of improving the grain feel of the scalp during hair washing. Further, from the viewpoint of suppressing discomfort of the primary particles when the disintegrating particles are disintegrated by the washing process of the hair and rinsing water, and from the viewpoint of washability, the average particle diameter of the primary particles is preferably 70 μm or less, and more preferably Is 60 μm or less.
From the viewpoint of further improving the balance of the effects of the stability of the component (D), the ease of foaming during hair washing, the grain feel of the scalp during hair washing, the suppression of hair squeaking during rinsing, and the refreshing feeling of the scalp after rinsing. The particle size of the primary particles of the disintegrating particles is preferably 1 μm or more, more preferably 5 μm or more, still more preferably 10 μm or more, and preferably 50 μm or less, more preferably 40 μm or less.

The collapsible particles are preferably those in which the primary particles described above are aggregated by binding with a water-soluble binder. The water-soluble binder is not limited as long as it dissolves in a water-soluble salt aqueous solution by decreasing the salt concentration and precipitates by increasing the salt concentration, but polyvinyl alcohol, itaconic acid-modified polyvinyl alcohol, sulfonic acid-modified polyvinyl alcohol , Polyvinyl alcohol derivatives such as maleic acid-modified polyvinyl alcohol, poly (meth) acrylic acid alkali salts, alkali salts of (meth) acrylic acid / (meth) acrylic acid ester copolymers, alkalis of acrylic acid / maleic acid copolymers Synthetic products such as salts and polyvinylpyrrolidone; cellulose derivatives such as methylcellulose, ethylcellulose, sodium carboxymethylcellulose, hydroxyalkylcellulose; polysaccharides such as starch and derivatives; seaweeds, plant mucilage, proteins, etc. Natural and polymer is. The water-soluble binder is preferably polyvinyl alcohol or a derivative thereof, more preferably polyvinyl alcohol, from the viewpoint of enhancing disintegration during rinsing of hair.
In the disintegrating particles, the water-soluble primary particles and the water-soluble binder may be the same type of material or different materials.

  From the viewpoint of making the disintegration property of the particles suitable, and improving the workability during the production of the disintegrating particles or the hair cleansing composition containing the disintegrant particles, the water-soluble binder is added to the primary particles in an amount of 0. It is preferable to use 5% by mass or more, and it is preferable to use 30% by mass or less.

The average particle size of the disintegrating particles is preferably 100 μm or more, more preferably 125 μm or more, and further preferably 150 μm or more, from the viewpoint of promoting grain feeling during washing, and suppresses squeaking during rinsing. From the viewpoint of reducing particle persistence during rinsing, it is preferably 800 μm or less, more preferably 600 μm or less, and even more preferably 360 μm or less.
In addition, the disintegrating particles preferably include two types of disintegrating particles having different particle diameters from the viewpoint of giving a grain feel to the scalp and reducing squeaking, and the average particle diameter is preferably 50 to 130 μm. Preferably, particles (small particles) in the range of 90 to 125 μm and particles (large particles) having an average particle diameter of preferably 240 to 600 μm, more preferably 350 to 500 μm are included. The mass ratio of the large particles to the small particles is preferably 1/12 to 12/1 in the hair cleaning composition ((large particles) / (small particles)), more preferably from the viewpoint of enhancing the cleaning effect. 1/2 to 2/1.
Here, the average particle diameter of the component (D) such as disintegrating particles is a median diameter measured by a laser diffraction / scattering particle size distribution measuring apparatus LA-910 (manufactured by Horiba).

Examples of the method for producing the disintegrating particles include rolling granulation, tumbling fluidized granulation, fluidized bed granulation, stirring tumbling granulation, and melt granulation while mixing or mixing primary particles and a water-soluble binder. It is preferably produced by a granulation method such as extrusion granulation method, spray drying granulation or the like, or a coating method such as spray drying.
The obtained disintegrating particles have a characteristic that the disintegration rate increases in a water-soluble salt-containing aqueous solution due to a decrease in the concentration of water-soluble salts. Therefore, when disintegrating particles are blended in a hair cleansing composition, the disintegrating particles are stably dispersed in the composition without disintegrating, and disintegrate with a decrease in the concentration of water-soluble salts in the washing and rinsing processes. Sex particles collapse. The disintegrating properties of the disintegrating particles are preferably designed so that at least a part of them disintegrates in an aqueous solution having a water-soluble salt concentration of less than 1.0% by mass, more preferably less than 1.5% by mass. From the viewpoint of improving the wash-out property, it is more preferable that the water-soluble salt concentration is designed so that 60% by volume or more disintegrates in an aqueous solution having a water-soluble salt concentration of less than 1.0% by mass, more preferably less than 1.5% by mass. Moreover, it is preferable that the particle | grains collapsed at this time become an average particle diameter of 80 micrometers or less.

  The content of the component (D) in the hair cleansing composition is from the viewpoint of enhancing the grain feel of the scalp during washing, from the viewpoint of suppressing squeaking during rinsing, from the viewpoint of improving the clean feeling of the scalp after rinsing, From the viewpoint of effective cleaning up to the root and enhancing the scalp massage effect, it is preferably 3% by mass or more, more preferably 5% by mass or more, and still more preferably 7%, based on the entire hair cleaning composition. It is 8% by mass or more, more preferably 8% by mass or more. Further, from the viewpoint of ease of foaming during hair washing, the content of the component (D) in the hair cleaning composition is preferably 15% by mass or less, more preferably 13%, based on the entire hair cleaning composition. It is at most 12% by mass, more preferably at most 12% by mass.

  In addition, the content of the component (D) other than the disintegrating particles in the hair cleaning composition is preferably relative to the entire hair cleaning composition from the viewpoint of suppressing a decrease in dispersion stability of the composition. Is 10% by mass or less, more preferably 3% by mass or less.

  Moreover, mass ratio ((C) / (D)) of the content of the component (C) with respect to the content of the component (D) in the hair cleansing composition determines the sedimentation in the composition of the component (D). From the viewpoint of suppressing and keeping component (D) stably in the composition, it is 0.08 or more, preferably 0.10 or more, more preferably 0.13 or more. In addition, from the viewpoint of enhancing the grain feel of the scalp during hair washing, and enhancing the refreshing feeling of the scalp after rinsing, and reducing the squeak, the mass ratio ((C) / (D)) is 0.83 or less. Preferably, it is 0.70 or less, more preferably 0.50 or less, still more preferably 0.30 or less, and even more preferably 0.20 or less.

Moreover, in this embodiment, the hair cleaning composition may contain components other than the component mentioned above.
For example, the hair cleansing composition of this embodiment preferably contains water. As water, ion exchange water, distilled water, or the like can be used. The water content is, for example, the remaining amount of components (A) to (D) and other components in the hair cleaning composition. Further, the water content is preferably 55% by mass or more, more preferably 60% by mass or more, and preferably 80% by mass or less, more preferably based on the entire hair cleaning composition. 75% by mass or less.

Moreover, the hair cleaning composition of this embodiment may contain the following components (E) and (F).
(Ingredient (E))
Ingredient (E) is a refreshing agent.
Specific examples of the refreshing agent include menthol such as l-menthol, menthyl lactate, menthone glycerol acetal, 3-l-menthoxypropane-1,2-diol, menthylethylaminooxalic acid, N-ethyl-3-p. -Mentancarboxyamide, isopulegol, menthyl acetate, borneol, camphor, thymol, and one or more selected from the group consisting of these derivatives. From the viewpoint of improving the refreshing feeling and refreshing feeling of the scalp after rinsing, the component (E) is preferably menthol.

  The content of the component (E) in the hair cleaning composition is preferably 0.01% by mass or more with respect to the entire hair cleaning composition from the viewpoint of improving the refreshing feeling and refreshing feeling of the scalp after rinsing. More preferably, it is 0.05 mass% or more, More preferably, it is 0.1 mass% or more. In addition, from the viewpoint of suppressing the irritation of the scalp, the content of the component (E) in the hair cleaning composition is preferably 2% by mass or less, more preferably based on the entire hair cleaning composition. 1 mass% or less, More preferably, it is 0.5 mass% or less.

(Ingredient (F))
Component (F) is a surfactant other than component (A). Examples of the component (F) include cationic surfactants, nonionic surfactants, amphoteric surfactants, etc. Among them, the viewpoint of improving the storage stability of the composition and good foaming at the time of washing the hair. From the viewpoint of imparting and improving the cleaning properties such as sebum stains, and from the viewpoint of suppressing hair squeaking during rinsing, at least one selected from nonionic surfactants and amphoteric surfactants is preferred, and nonionic surfactants More preferably, it contains an agent and an amphoteric surfactant.

(Cationic surfactant)
Any cationic surfactant may be used as long as it is used in a hair cleansing composition, and specific examples thereof include tertiary amine compounds or salts thereof and quaternary ammonium salts. The hair cleansing composition may contain one type of cationic surfactant or two or more types.

  Examples of cationic surfactants include stearic acid dimethylaminoethylamide, stearic acid dimethylaminopropylamide (manufactured by Toho Chemical Industry Co., Ltd .; Katinal MPAS), stearic acid diethylaminoethylamide (manufactured by Toho Chemical Industry Co., Ltd .; Katinal AEAS), and stearic acid diethylamino acid. Propylamide, stearic acid dipropylaminoethylamide, stearic acid dipropylaminopropylamide, behenic acid dimethylaminopropylamide (manufactured by Nikko Chemicals; Amidoamine MPB), behenic acid diethylaminopropylamide (manufactured by Toho Chemical Industry Co., Ltd .; Katchinal GMPA) Stearic acid dimethylaminopropylamide, stearic acid diethylaminoethylamide, behenic acid dimethylaminopropylamide, behenic acid diethylamino At least one selected from propyl amide is more preferable.

  When the hair cleaning composition contains a cationic surfactant, the content thereof is preferably 0.05% by mass or more based on the total amount of the hair cleaning composition from the viewpoint of suppressing hair squeaking during rinsing. More preferably 0.1% by mass or more, further preferably 0.2% by mass or more, still more preferably 0.3% by mass or more, and preferably 2% by mass or less, more preferably 1%. It is not more than mass%, more preferably not more than 0.7 mass%.

(Nonionic surfactant)
Any nonionic surfactant may be used as long as it is used in a hair cleansing composition. Specific examples thereof include alkyl polyglycosides; polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxy Polyoxyethylene alkyl ethers such as ethylene isostearyl ether; Polyoxyalkylene alkyl ethers such as polypropylene glycol caprylyl ether; Polyoxyethylene hydrogenated castor oil; Glycerin fatty acid ester; Sorbitan fatty acid ester; Polyoxysorbitol fatty acid ester; Polyethylene glycol fatty acid ester (Poly) ethylene glycol fatty acid ester; polyoxyalkylene fatty acid ester; polyoxyethylene sorbitan fatty acid ester, etc. Polyoxyalkylene sorbitan fatty acid esters; monoalkenyl glyceryl ether; 2-ethylhexyl glyceryl ether, monoalkyl glyceryl ethers such as isodecyl glyceryl ether fatty acid alkanolamides, polyoxyalkylene fatty acid alkanolamides, and the like. The fatty acid in the nonionic surfactant may be a linear fatty acid or a branched chain fatty acid. Moreover, the carbon number of the fatty acid in the nonionic surfactant is preferably 8 or more and 20 or less. The hair cleansing composition may contain one type of nonionic surfactant or two or more types.
Nonionic surfactant is a viewpoint that improves the storage stability of the composition, a viewpoint that imparts good foaming at the time of washing, a viewpoint that improves the cleaning properties such as sebum stains, and a viewpoint that suppresses squeaking of hair during rinsing. And preferably one or more selected from the group consisting of polyoxyethylene alkyl ether, polyoxyalkylene fatty acid alkanolamide and fatty acid alkanolamide, more preferably polyoxyethylene alkyl ether and polyoxyalkylene fatty acid alkanol Amide.

  The content of the nonionic surfactant in the hair cleaning composition is the viewpoint of improving the storage stability of the composition, the viewpoint of imparting good foaming at the time of washing the hair, and the viewpoint of improving the cleaning properties such as sebum stains. From the viewpoint of suppressing squeaking of the hair during rinsing, it is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and further preferably 1% by mass or more with respect to the entire hair cleaning composition. In addition, it is preferably 10% by mass or less, more preferably 5% by mass or less, and further preferably 4% by mass or less.

(Amphoteric surfactant)
The amphoteric surfactant is not particularly limited as long as it is used in a hair cleansing composition, and examples thereof include betaine type surfactants, amino acid type surfactants, imidazoline type surfactants, and aminoxide type surfactants. The hair cleansing composition may contain one type of amphoteric surfactant or two or more types.
Among these, specific examples of betaine type surfactants include carbobetaine type surfactants such as alkyl carbobetaine; alkylhydroxysulfobetaines such as alkylsulfobetaine and laurylhydroxysultain, and sulfobetaine types such as alkylamidohydroxysulfobetaine. Surfactant; alkylamidoamine type betaine; alkyl imidazoline type betaine.
Of these, the amphoteric surfactant is preferably alkylamidopropylbetaine or alkylhydroxysulfobetaine having an alkyl group having 8 to 14 carbon atoms, more preferably carbon number from the viewpoint of foam quality and feeling after washing. An alkylamidopropyl betaine having 8 to 14 alkyl groups, more preferably lauramidopropyl betaine.

  The content of the amphoteric surfactant with respect to the entire hair cleaning composition is preferably 0.1% by mass or more, more preferably from the viewpoint of improving foaming and suppressing squeaking of the hair during rinsing. It is 5 mass% or more, More preferably, it is 1 mass% or more, Preferably it is 10 mass% or less, More preferably, it is 7 mass% or less, More preferably, it is 5 mass% or less.

  Further, the total content of the surfactant in the hair cleaning composition, that is, the total of the component (A) and the component (F) is the viewpoint of suppressing the increase in viscosity, the viewpoint of improving foaming at the time of washing the hair, sebum dirt, etc. From the viewpoint of improving the detergency, it is preferably 5% by mass or more, more preferably 8% by mass or more, further preferably 10% by mass or more, and still more preferably 12% by mass with respect to the entire hair cleaning composition. In addition, it is preferably 25% by mass or less, more preferably 22% by mass or less, still more preferably 20% by mass or less, and still more preferably 18% by mass or less.

The hair cleansing composition may contain an organic solvent. Examples of such organic solvents include lower alkanols having 1 to 6 carbon atoms such as ethanol and 2-propanol; propylene glycol, dipropylene glycol, polypropylene glycol having a polymerization degree of 3 to 20, and 1,3-butylene glycol (BG). ), Polyols such as diethylene glycol, glycerin and diglycerin; cellosolves such as ethyl cellosolve and butyl cellosolve; carbitols such as ethyl carbitol and butyl carbitol; aromatic alcohols such as benzyl alcohol and the like.
The content of the organic solvent in the hair treatment composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, further preferably 1% by mass or more, and even more preferably 2% by mass. In addition, it is preferably 10% by mass or less, more preferably 8% by mass or less, and further preferably 6% by mass or less.

The hair cleansing composition may further contain a pH adjusting agent. Specific examples of the pH adjusting agent include organic acids and inorganic acids, preferably organic carboxylic acids such as lactic acid, malic acid and citric acid. In addition, the hair cleansing composition may contain a base such as sodium hydroxide, potassium hydroxide, ammonium chloride in combination with these organic acids as another pH adjuster.
Further, the hair cleansing composition may contain a salt such as sodium chloride.

(Other optional ingredients)
In the present embodiment, the hair cleansing composition can appropriately include components used in a normal hair cleansing composition according to a desired effect in addition to the components described above. Such optional components include, for example, anti-dandruff agents; vitamins; bactericides; anti-inflammatory agents; antiseptics; chelating agents; moisturizers; coloring agents; plant extracts (extracts); Antioxidants; oils and the like, and these may be derived from animals or plants. Each of these agents is not limited to the use as each agent. Depending on the purpose, for example, the use of a fragrance as a preservative component, or as a combination with other uses, for example, the effect as a fragrance and antiseptic. It can be used as an effect as an ingredient.

(PH)
The pH of the hair cleaning composition of the present embodiment is preferably 4.0 or more from the viewpoint of stability of the disintegrating particles, ease of foaming during hair washing, and discharge from the container. Preferably it is 4.5 or more, More preferably, it is 5.0 or more, Preferably it is 6.5 or less, More preferably, it is 6.0 or less, More preferably, it is 5.7 or less. In addition, in this specification, pH of a hair-cleaner composition means the measured value (glass electrode measuring method) in 30 degreeC.

Next, the manufacturing method of the hair cleaning composition in this embodiment is demonstrated.
The hair cleansing composition of the present embodiment is produced, for example, by mixing components (A) to (D) and other components as appropriate in a predetermined order and dissolving or dispersing them in water.

  In addition, the method for washing hair using the hair cleansing composition in the present embodiment includes, for example, applying the hair cleansing composition to the hair and washing it with water, and preferably the hair cleansing composition is applied to the hair. Apply to, foam well, and then rinse.

  The hair cleansing composition in this embodiment includes components (A) to (D), and the content of component (C) and the mass ratio ((C) / (D)) are in specific ranges, respectively. Sedimentation of component (D) in the hair cleaning composition is suppressed. For this reason, a component (D) can be stably hold | maintained in a composition. Further, according to the present embodiment, the hair cleanser composition excellent in the balance of the foaming ease at the time of washing the hair, the grain feel of the scalp at the time of washing the hair, the suppression of the squeaking at the time of rinsing, and the refreshing feeling of the scalp after rinsing You can get things. In addition, according to the present embodiment, for example, the dispersion stability of the component (D) is excellent, the foam is easily foamed at the time of washing the hair, and there is a preferable scrub feeling (grain feeling on the scalp) at the time of washing the hair. Moreover, after rinsing, it is possible to obtain a hair cleanser that feels that the scalp can be washed cleanly.

  As mentioned above, although embodiment of this invention was described, these are illustrations of this invention and various structures other than the above are also employable.

(Examples 1-15 and Comparative Examples 1-5)
A hair cleanser having the composition shown in Table 1 and Table 2 was prepared and evaluated according to the following method and criteria.

(Method for preparing hair cleanser)
For a composition containing the component (C) in an appropriate amount of water, the component (C) was added and uniformly dispersed. Thereafter, the component (A) was further added and uniformly dispersed, and a pH adjuster (Na hydroxide) was added to adjust the pH to 6.5. After heating to 80 ° C., component (B) and BG as appropriate were added and stirred for 10 minutes. Thereafter, amphoteric surfactants and nonionic surfactants were further added and dissolved as appropriate. While stirring, the mixture was cooled to 60 ° C. to dissolve the fragrance and menthol. Then, it cooled to 50 degreeC, about the composition containing a component (D), the component (D) was uniformly disperse | distributed, and pH was adjusted to 5.5 with the pH adjuster (citric acid).

(Evaluation method)
(A Stability of component (D))
About 45 g of the hair cleanser in each case in a glass bottle with a capacity of 50 mL, left to stand for 6 days in a cycle test (1 cycle / day) at -15 ° C to 60 ° C, and about the sedimentation state of component (D) in the hair cleanser Visual evaluation was performed based on the following three-stage criteria. Two or more were accepted.
3: Component (D) is uniformly dispersed.
2: Sedimentation is seen in a part of component (D), but it is not divided into an opaque layer and a transparent layer.
1: Component (D) settles and is divided into an opaque layer and a transparent layer.

(B Ease of foaming when washing hair)
After thoroughly rinsing a Chinese hair bundle with a length of 20 cm and a weight of 20 g with no chemical treatment history with warm water of 40 ° C., 1.0 g of a hair cleaning composition is applied, and the hairs are gently lightened for about 30 seconds. Foamed to rub. The easiness of foaming at that time was sensory-evaluated by the following five-step criteria by five professional panelists. Three or more were accepted.
5: It is easy to foam very well.
4: It is easy to foam well.
3: If anything, it is easy to make bubbles.
2: If anything, it is hard to foam.
1: Very difficult to foam.

(C Grain of scalp when washing hair)
Five professional panelists actually used 6 g of the hair cleaning agent of each example, and at the time of washing the hair, whether the grain of the component (D) was felt on the scalp was subjected to sensory evaluation based on the following five-step criteria. Three or more were accepted.
5: Grain is felt very clearly.
4: Grain is clearly felt.
3: If anything, grain is felt.
2: If anything, grain is not felt.
1: Grain is not felt at all.

(D. Hair squeak when rinsing)
After thoroughly rinsing a Chinese hair bundle with a length of 20 cm and a weight of 20 g with no chemical treatment history with warm water of 40 ° C., 1.0 g of a hair cleaning composition is applied, and the hairs are gently lightened for about 30 seconds. Foamed to rub. Then, while rinsing with warm water of 40 ° C., sensory evaluation of hair squeaking at the time of rinsing was performed by five professional panelists based on the following five-step criteria. Three or more were accepted.
5: Very little squeak.
4: Less squeak.
3: If anything, there is little squeak.
2: If anything, squeak is strong.
1: Squeak is very strong.

(E Refreshed scalp after rinsing)
Five professional panelists actually used 6 g of the hair cleaning agent of each example, and after rinsing, whether the scalp felt cleanly washed was subjected to sensory evaluation based on the following five-step criteria. Three or more were accepted.
5: There is a feeling that the scalp was washed very well.
4: There is a feeling that the scalp was washed cleanly.
3: If anything, the scalp feels clean and clean.
2: If anything, the scalp does not feel clean.
1: There is no feeling that the scalp was washed cleanly.

In Table 1 and Table 2, the following were used as each component.
* 1 Laureth sulfate Na: Emar 227HP (manufactured by Kao Corporation)
* 2 Cocoa glutamic acid TEA: Amisoft CT-12S (Ajinomoto Co., Inc.)
* 3 Polyquaternium-10: Katchinal HC-200 (manufactured by Toho Chemical Co., Ltd.)
* 4 Guar hydroxypropyltrimonium chloride: JAGUAR C-17 (Solvay)
* 5 Acrylates copolymer: Carbopol Aqua SF-1 polymer (manufactured by Lubrizol)
* 6 (Acrylates / alkyl acrylate (C10-30)) crosspolymer: Carbopol ETD2020 polymer (manufactured by Lubrizol)
* 7 Disintegrating particles: Disintegrating particles obtained by granulating according to the method described in JP 2000-119171 A, Production Example 3 and then sieving (disintegrating particles having an average particle diameter of 100 μm and average Mixture of collapsible particles with a particle size of 500 μm)
* 8 Lauramidopropylbetaine: Anhitoal 20AB (manufactured by Kao Corporation)
* 9 PPG-2 cocamide: Amidette 1PC (manufactured by Kawaken Fine Chemical Co., Ltd.)
* 10 ceteth-15: NIKKOL BC-15TX (manufactured by Nippon Surfactant Co., Ltd.)

  From Table 1 and Table 2, the shampoo composition described in each example contains the components (A) to (D), and the content of the component (C) and the mass ratio ((C) / (D)) Since it is in a specific range, the stability of the component (D), ease of foaming at the time of washing hair, graininess of the scalp at the time of washing hair, squeaking of the hair at the time of rinsing and after rinsing It was excellent in the balance of each effect of the refreshing feeling of the scalp.

Claims (7)

The following components (A) to (D):
A hair cleansing composition comprising (A) an anionic surfactant, (B) a cationized polysaccharide, (C) an anionic polymer, and (D) particles,
Content of the said component (C) is 1.2 mass% or more and 2.5 mass% or less with respect to the said whole hair cleaning composition,
The hair cleaning composition whose mass ratio ((C) / (D)) of content of the said component (C) with respect to content of the said component (D) is 0.08 or more and 0.83 or less.   The hair cleansing composition according to claim 1, wherein the component (A) comprises one or more selected from the group consisting of polyoxyalkylene alkyl ether sulfates and amino acid surfactants.   The hair cleaning agent according to claim 1 or 2, wherein the content of the component (A) in the hair cleaning composition is 5% by mass or more and 20% by mass or less with respect to the entire hair cleaning composition. Composition.   The hair cleansing composition according to any one of claims 1 to 3, wherein the component (B) comprises one or more selected from the group consisting of cationized hydroxyethyl cellulose and cationized guar gum.   The content of the component (B) in the hair cleaning composition is 0.01% by mass or more and 3% by mass or less with respect to the entire hair cleaning composition. A hair cleansing composition as described in 1. above.   The said component (C) contains the crosslinked copolymer comprised from two or more types of monomers chosen from the group which consists of alkyl methacrylate (C1-C4 and C8), acrylic acid, and methacrylic acid. The hair cleaner composition of any one of thru | or 5.   The hair cleansing composition according to any one of claims 1 to 6, wherein the component (D) comprises disintegrating particles.