CN108619006A

CN108619006A - Two-layer hair cosmetics

Info

Publication number: CN108619006A
Application number: CN201710854397.4A
Authority: CN
Inventors: 冈本将典
Original assignee: Mandom Corp
Current assignee: Mandom Corp
Priority date: 2017-03-24
Filing date: 2017-09-20
Publication date: 2018-10-09
Anticipated expiration: 2037-09-20
Also published as: JP2018162222A; CN108619006B; JP6821487B2

Abstract

The issue of the present invention is to provide a kind of two-layer hair cosmetics, although the hair cosmetics fully contain oil reservoir, but the emulsification of the oil reservoir and water layer when using is easy, and it is rapidly separated with water layer using rear oil reservoir, it is not tacky when use, it is excellent in the coating of hair entirety, and then storage stability is also excellent.A kind of hair cosmetics, it includes oil reservoir and water layer, the kinematic viscosity that the oil reservoir contains 25 DEG C is 100,000 mm²The dimethicone and/or dimethiconol (ingredient A) of/s or more; the water layer contains lower alcohol (ingredient B), lauryl trimethyl ammonium chloride and/or N coco-nut oil fatty acid acyl group L arginine ethyl ester DL pyrrolidone carboxylic acid salts (ingredient C), water soluble polymer thickener (ingredient D) and the water (ingredient E) that carbon atom number is 2~5; oil reservoir content relative to aqueous layer contg is 20.0/80.0 or more, and the content of ingredient B is 20~32 mass %.

Description

Two-layer hair cosmetics

Technical field

The present invention relates to the two-layer hair cosmetics for including water layer and oil reservoir.

Background technology

Hair can be damaged due to ultraviolet light, blowing, comb hair, hair washing, hair dyeing etc. influence, and generate drying；Pulling force, bullet Power, gloss reduce；The symptoms such as finger passability, putting together property variation.In the past, in order to improve these symptoms, sale on the market has Hair cosmetics without flushing.

Hair cosmetics without flushing usually utilize the finishes such as silicone to form oil film on hair, on realizing State the improvement of symptom.In particular, the known hair cosmetics containing high polymerization dimethicone are easy to be unrolled evenly, finger is logical The improvement of the property crossed, putting together property, gloss etc. is excellent.In addition, it is known that dimethicone is polymerize by height mixture height, so as to Further obtain improvement.

In addition, the dosage form as the hair cosmetics without flushing, including：The substantially not oil type of mixture water；In oil Mixture has the emulsifying of water or surfactant in agent；Including the oil reservoir containing finish and the water layer containing water or surfactant This two layers two stratotype；Etc..From can height mixture finish aspect, oil type is preferred.But it deposits when in use In tacky, poor ductility, it is difficult to be deployed into the problems such as hair is whole.As emulsifying, for tacky when improving use or prolong Malleability is usually made emulsion oil-in-water.But for the finish of phase in height mixture lotion, need a large amount of surface of mixture Activating agent, therefore there is a problem of generating from the tacky of surfactant.

As the dosage form that can solve the problems, such as emulsifying and oil type, it is proposed that two stratotypes.The hair cosmetics of two stratotypes Usually product is fully vibrated using preceding, after so that oil reservoir is emulsified with water layer, is fetched into before the separation of oil reservoir and water layer starts On hand, it after palm is sufficiently spread out, is applied on hair, is thus used.Therefore, the emulsifying ability of oil reservoir and water layer is adjusted It is critically important.For example, Patent Document 1 discloses a kind of hair cosmetics of type without flushing, it includes with high concentration This two layers of water layer containing the high oil reservoir for polymerizeing dimethicone and containing water soluble polymer thickener.

Existing technical literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2009-161508 bulletins

Invention content

Problems to be solved by the invention

Hair cosmetics described in patent document 1 pass through the mixture water soluble polymer thickener, water, specific in water layer Surfactant and organic solvent, it is thus regarded that have adjusted the emulsifying ability of oil reservoir and water layer, but pair caused by organic solvent It is troubling in the damage of scalp and hair.And then mixture lauryl trimethyl ammonium chloride and N- coco-nut oil fatty acids are not disclosed Acyl group-L-arginine ethyl ester DL- pyrrolidone carboxylic acid salts are as cationic surfactant.

The issue of the present invention is to provide a kind of two-layer hair cosmetics, although the two-layer hair cosmetics fully contain The emulsification of oil reservoir and water layer when having an oil reservoir, but using is easy, and is rapidly separated with water layer using rear oil reservoir, when use not It is tacky, it is excellent in the coating of hair entirety.

Means for solving the problems

That is, the present invention relates to：

(1) a kind of two-layer hair cosmetics, for by this two layers two-layer hair cosmetics constituted of oil reservoir and water layer, The oil reservoir contains following compositions A, and the water layer contains following compositions B, following compositions C, following compositions D and following compositions E,

Oil reservoir content (oil reservoir/water layer, mass ratio) relative to aqueous layer contg is 20.0/80.0 or more,

Contents of the ingredient B in water layer is 20~32 mass %.

Ingredient A：25 DEG C of kinematic viscosity is 100,000 mm²The dimethicone and/or dimethiconol of/s or more

Ingredient B：The lower alcohol that carbon atom number is 2~5

Ingredient C：Lauryl trimethyl ammonium chloride and/or N- coco-nut oil fatty acids acyl group-L-arginine ethyl ester DL- pyrroles Pyrrolidone carboxylate

Ingredient D：Water soluble polymer thickener

Ingredient E：Water

(2) the two-layer hair cosmetics described in above-mentioned (1), wherein the content of the ingredient C is 0.01~0.30 matter Measure %.

The effect of invention

Although the two-layer hair cosmetics of the present invention fully contain oil reservoir, the emulsification of oil reservoir and water layer when using is held Easily, and using rear oil reservoir with water layer rapidly separate, using be easy, taste is excellent.In turn, two-layer hair of the invention Cosmetic preparation is not tacky when in use, excellent in the coating of hair entirety.

Specific implementation mode

The two-layer hair cosmetics of the present invention include oil reservoir and water layer, and the kinematic viscosity that the oil reservoir contains 25 DEG C is 10 Ten thousand mm²The dimethicone and/or dimethiconol of/s or more, the water layer contain carbon atom number be 2~5 it is rudimentary Alcohol, lauryl trimethyl ammonium chloride and/or N- coco-nut oil fatty acids acyl group-L-arginine ethyl ester DL- 2-pyrrolidone-5-carboxylic acids Salt, water soluble polymer thickener and water.

In this specification, the dimethicone and/or dimethiconol are sometimes referred to as " ingredient A ".In addition, institute It states the lower alcohol that carbon atom number is 2~5 and is sometimes referred to as " ingredient B ".In addition, the lauryl trimethyl ammonium chloride and/or N- coconut palms Seed oil fatty acid acyl-L-arginine ethyl ester DL- pyrrolidone carboxylic acid salts are sometimes referred to as " ingredient C ".In addition, described water-soluble Property macromolecule thickener be sometimes referred to as " ingredient D ".In addition, the water is sometimes referred to as " ingredient E ".

The present invention two-layer hair cosmetics can further include other than the ingredient A~E ingredient (it is other at Point).Mentioned component, such as ingredient A~E and other ingredients can be used only a kind respectively, can also use two or more.

Oil reservoir

The oil reservoir contains dimethicone and/or dimethiconol (ingredient A) with special exercise viscosity.

The ingredient A is that 25 DEG C of kinematic viscosity is 100,000 mm²The dimethicone and/or polydimethylsiloxanes of/s or more Alkanol.From use the present invention two-layer hair cosmetics after completion good degree (finger by ease, light The flexibility of hair when pool, the good degree of putting together property, completion) from the viewpoint of, 25 DEG C of the kinematic viscosity of ingredient A is 100,000 mm²/ s or more, preferably 5,000,000 mm²/ s or more, more preferably 10,000,000 mm²/ s or more.In addition, 25 DEG C of the movement of ingredient A The upper limit of viscosity is not particularly limited, and preferably 30,000,000 or less.

Ingredient A can use commercially available product.As the commercially available product of ingredient A, it can be cited for example that XF49-811 (trade name, Momentive Performance Materials companies manufacture), DOW CORNING TORAY BY 11-026 (trade name, Dow Corning Toray Co., Ltd. manufacture), PMX-1501Fluid (trade name, Dow Corning Toray Co., Ltd. Manufacture) etc..

From being easy to be deployed on hair, the viewpoint of the improvement of finger passability, putting together property, gloss etc. and complete From the viewpoint of the flexibility of Shi Maofa, contents of the ingredient A in two-layer hair cosmetics is preferably 0.5 mass % or more, More preferably 0.8 mass % or more, further preferably 1.0 mass % or more.In addition, from complete when hair lightness, with And from the viewpoint of the coating on hair, the content of ingredient A is preferably 10.0 mass % hereinafter, more preferably 7.0 matter % is measured hereinafter, further preferably 5.0 mass % or less.

The oil reservoir preferably comprises ethereal oil.Ethereal oil is in addition to that can play the lytic agent as the ingredient A Other than effect, moreover it is possible to keep coating good, volatilize after coating, to further play the effect of remaining ingredient A.

As ethereal oil, can enumerate at normal atmospheric pressure has volatile hydrocarbon ils and has at normal atmospheric pressure There is volatile silicone oil etc..Ethereal oil can be used only a kind, can also use two or more.It should be noted that this explanation In book, refer to that the boiling point of normal atmosphere pressure is 300 DEG C or less with volatility at normal atmospheric pressure.

As it is described at normal atmospheric pressure have volatile hydrocarbon ils, can enumerate isoparaffin, light isoparaffins, Lightweight flows isoparaffin, Parleam etc..

There is volatile silicone oil at normal atmospheric pressure as described, cyclic silicone and chain silicone etc. can be enumerated. As cyclic silicone, octamethylcy-clotetrasiloxane, decamethylcyclopentaandoxane (cyclopentasiloxane) and ten dimethyl can be enumerated Six siloxanes of ring etc..As the chain silicone, octamethyltrisiloxane, tetradecamethylhexasiloxane can be enumerated and in standard There is volatile dimethicone etc. under atmospheric pressure.

In the ethereal oil, preferably Parleam, cyclopentasiloxane.Especially containing more ingredient B, in the case that the density (quality of per unit volume) of water layer is low, the separating rate of oil reservoir and water layer is also easily adjusted, thus More preferable low density Parleam.

Containing ethereal oil, the viewpoint of the coating from the dissolubility of ingredient A and on hair is come It sees, the content in two-layer hair cosmetics is preferably 8.0 mass % or more, more preferably 10.0 mass % or more, into one Step is preferably 13.0 mass % or more.In addition, from the viewpoint of the drying for reducing the hair after being coated with, the content of ethereal oil Preferably 50.0 mass % hereinafter, more preferably 45.0 mass % hereinafter, further preferably 40.0 mass % or less.

From the viewpoint of use feeling, the oil reservoir preferably comprises the ingredient other than the ingredient A and the ethereal oil (other ingredients).As other ingredients, can enumerate be at room temperature liquid finish (for the finish other than the ethereal oil, Hereinafter sometimes called fixed oil), vaseline, the wooden fruit fat of breast etc. be that solid finish, tocopherol etc. are anti-oxidant at room temperature It is the ultra-violet absorbers such as agent, 2-ethylhexylpmethoxycinnamate, No. 215 red, No. 223 red, No. 201 orange, orange No. 205 equal oil-soluble dyes, various fragrance.It should be noted that in this specification, room temperature indicates 1~30 DEG C of temperature range.

As it is described at room temperature be liquid finish, can enumerate the hydrocarbon ils of liquid, the ester oil of liquid, liquid silicone oil, The aliphatic acid etc. of the grease of liquid, the wax of liquid, liquid.

As the hydrocarbon ils of specific liquid, it can be cited for example that alpha olefin oligomer, flowing isoparaffin, saualane, synthesis Saualane, vegetalitas saualane, flowing isoparaffin, atoleine etc..

As the ester oil of specific liquid, it can be cited for example that the different stearyl ester of isostearic acid, isopropyl isostearate, different nonyl Sour isodecyl ester, isononyl isononanoate, isononanoic acid monooctyl ester, thylhexoic acid cetyl ester, Cetyl octanoate, oleic acid oleic alcohol Ester, two isostearic acid propylene glycol esters, diethyl caproic acid neopentyl glycol ester, two capric acid neopentyl glycol ester, Pentaerythrityl tetraoctanoate, Three isostearic acid trimethylolpropanes, triethyl group caproic acid erythrite ester, tricaprylin, three (caprylic/capric) glyceride, palm fibre The different stearyl ester of palmitic acid isopropyl propionate, ethylhexyl palmitate, jojoba ester, myristic acid, isopropyl myristate, nutmeg are misery Base dodecyl ester, two different stearyl ester of malic acid etc..

As the silicone oil of specific liquid, it can be cited for example that the methyl other than the ingredient A and the ethereal oil is poly- The chains such as siloxanes, methyl phenyl silicone, methylhydrogen polysiloxanes, dimethiconol silicone, methyl ring are poly- Cyclic silicones, the aminopropans such as siloxanes, octamethylcy-clotetrasiloxane, decamethylcyclopentaandoxane, ten diformazan basic rings, six siloxanes Methyl siloxane dimethylsiloxane copolymer, aminoethylaminopropyl siloxanes dimethylsiloxane copolymer, The amino modified silicone such as aminoethylaminopropyl methylsiloxane dimethylsiloxane copolymer, carboxy-modified silicone, fat Fat acid modified silicone, alcohol modified silicone, aliphatic alcohol modified silicone, epoxy-modified silicone, fluorine richness silicone, alkyl-modified silicone Equal modified silicones etc..

As the grease, wax, aliphatic acid of specific liquid, it can be cited for example that avocado oil, argan oil, almond Oil, olive oil, rice bran oil, macadimia nut oil, SIMMONDSIA CHINENSIS SEED OIL, isostearic acid, oleic acid etc..

Containing other ingredients, about its content in two-layer hair cosmetics, as long as not damaging this The effect of invention is just not particularly limited, preferably 0.1~40.0 mass %, more preferably 0.5~20.0 mass %, further Preferably 1.0~10.0.In the case where the content of other ingredients is more than 40.0 mass %, has and be easy tacky tendency.

Water layer

The water layer contains lower alcohol (ingredient B), lauryl trimethyl ammonium chloride and/or the N- coconut palms that carbon atom number is 2~5 Seed oil fatty acid acyl-L-arginine ethyl ester DL- pyrrolidone carboxylic acid salts (ingredient C), water soluble polymer thickener (at Divide D) and water (ingredient E).

The ingredient B is the lower alcohol that carbon atom number is 2~5.By the lower alcohol for being 2~5 containing carbon atom number, thus Can adjust after emulsification to two layers of separating rate.In addition, the ductility on hair improves.

The lower alcohol for being 2~5 as carbon atom number, can enumerate ethyl alcohol, propyl alcohol, isopropanol etc., preferred alcohol and isopropyl Alcohol.

Contents of the ingredient B in water layer is 20 mass % or more, preferably 22 mass % or more, more preferably 24 matter Measure % or more.In the case that contents of the ingredient B in water layer is less than 20 mass %, cosmetic preparation blistering has use feeling and aesthetic Property difference tendency.In addition, contents of the ingredient B in water layer be 32 mass % hereinafter, preferably 30 mass % are hereinafter, more excellent It is selected as 28 mass % or less.In the case that contents of the ingredient B in water layer is more than 32 mass %, the density of water layer reduces, and having can It can be difficult to detach with oil reservoir, alcohol smell is strong, it is possible to make us feeling bad.

From after emulsification to two layers separating rate, from the viewpoint of the ductility on hair, the ingredient B is at two layers Content in formula hair cosmetics is preferably 6.0 mass % or more, more preferably 8.0 mass % or more.In addition, from alcohol gas is inhibited From the viewpoint of taste, use feeling, contents of the ingredient B in two-layer hair cosmetics be preferably 25.6 mass % hereinafter, More preferably 22.5 mass % or less.

The ingredient C is lauryl trimethyl ammonium chloride and/or N- coco-nut oil fatty acids acyl group-L-arginine ethyl ester DL- pyrrolidone carboxylic acid salts.Ingredient C is for making the emulsification of oil reservoir and water layer be easy and adjust the separating rate to two layers Purpose and contain.

Lauryl trimethyl ammonium chloride and/or N- coco-nut oil fatty acids acyl group-L-arginine ethyl ester DL- pyrrolidones Carboxylate can use commercially available product.As the commercially available product of lauryl trimethyl ammonium chloride, it can be cited for example that QUARTAMIN 24P (trade name, Kao Corp's manufacture), NIKKOL CA-2150 (trade name, Nikko Chemicals Co., Ltd's manufacture) etc..In addition, As N- coco-nut oil fatty acids acyl group-L-arginine ethyl ester DL- pyrrolidone carboxylic acid salts, can enumerate CAE (trade name, Ajincomoto Co., Inc manufactures).

From the emulsification easiness of oil reservoir and water layer, to from the viewpoint of the viewpoint of two layers of separating rate, anti-corrosion effect, at It is preferably 0.01 mass % or more to divide contents of the C in two-layer hair cosmetics, more preferably 0.02 mass % or more, into one Step is preferably 0.03 mass % or more.In addition, from a security point of view, the content of ingredient C is preferably 0.30 hereinafter, more excellent 0.25 mass % is selected as hereinafter, further preferably 0.22 mass % is hereinafter, most preferably 0.18 mass % or less.

The ingredient D is water soluble polymer thickener.Water soluble polymer contains for following purposes, that is, By the viscosity of appropriateness is assigned to the cosmetic preparation of emulsified state come improve after use feeling, adjustment emulsification to two layers of separation speed Degree.As water soluble polymer thickener, the natural polymers such as xanthans, carrageenan, hydroxyethyl cellulose, hydroxyl can be enumerated The synthesis such as the semi-synthetic macromolecule such as propyl methocel, methylcellulose, hydroxypropyl guar gum, carboxyl vinyl polymer is high Molecule.Wherein, for the excellent reason of use feeling, preferably hydroxypropyl methyl cellulose.

The viscosity appropriate to the viewpoint of two separate, imparting after whether emulsifying is so that the good viewpoint of use feeling is come See, contents of the ingredient D in two-layer hair cosmetics is preferably 0.02 mass % or more, more preferably 0.05 mass % with On, further preferably 0.10 mass % or more.In the case that the content of ingredient D is less than the lower limit, although can rock Oil reservoir is set to be emulsified with water layer, but the viscosity of cosmetic preparation is insufficient, thus emulsified particles becomes too small, it is difficult to it is integrated, there is hardly possible With the tendency of separation.In addition, from the viewpoint of the separating rate tacky, to two layers when using, the content of ingredient D is preferably 0.8 mass % hereinafter, more preferably 0.6 mass % hereinafter, further preferably 0.5 mass % or less.It is super in the content of ingredient D In the case of crossing the upper limit, the viscosity of cosmetic preparation becomes excessively high, and the movement of emulsified particles slows down, it is difficult to be integrated, have It is difficult to the tendency detached.

The water of the ingredient E is not particularly limited as long as it can be used as cosmetic preparation raw material, usually using pure water. From the viewpoint of the dissolubility of the ingredient of mixture into water layer, contents of the ingredient E in two-layer hair cosmetics is preferably 25.0~70.0 mass %, more preferably 27.0~68.0 mass %, further preferably 29.0~66.0 mass %.

The water layer can contain the ingredient (other ingredients) other than the ingredient B~E.As other ingredients, Ke Yishi Locality according to purpose mixture nonionic surface active agent, anionic surfactant, amphoteric surfactant, polyalcohol, PH adjusting agent, freshener, plant and animal material extract, moisturizer, ultra-violet absorber, antiphlogistic, chelating agent, vitamins, Antioxidant, anti-corrosion/fungicide, colorant etc..

As nonionic surface active agent, alkyl glycerol base ether, polyoxyalkylene alkyl, polyoxyalkylene hydrogen can be enumerated Change castor oil, glycol fatty acid ester, fatty acid glyceride, polyoxyalkylene glyceryl ether fatty acid ester, sorbitan fatty acid Ester, polyoxyalkylene sorbitan aliphatic ester, silicone surfactant etc..

As anionic surfactant, alkyl sulfate salt, polyoxyethylene alkyl ether sulfate salt, acyl group can be enumerated N methyl taurine salt, alkyl ether phosphate salt, N- acyl amino hydrochlorates etc..

As amphoteric surfactant, alkyl dimethyl oxyneurine, alkylamide propyl diformazan can be enumerated Base oxyneurine etc..

As the polyalcohol, glycols, glycerols etc. can be enumerated.As the concrete example of glycols, example can be enumerated Such as ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, Isopropanediol, 1,3 butylene glycol, 1,2- Butanediol, 1,2- pentanediols, 1,2- hexylene glycols, 1,2- ethohexadiols, Decane-1,2-diol etc..As glycerols, it can be cited for example that Glycerine, diglycerol, polyglycereol.Wherein, it is preferable to use containing from the viewpoint of the wettability for assigning appropriateness to the hair after coating There is a kind of polyalcohol in the group selected from glycerine, diglycerol and polyglycereol.It should be noted that in this specification, " glycerine " is Refer to both " glycerine " and " concentrated glycerin ".

The water layer does not preferably contain the organic solvent outside lower alcohol and polyalcohol that carbon atom number is 2~5.Although passing through The organic solvent outside lower alcohol and polyalcohol that carbon atom number is 2~5 can adjust the emulsifying ability of water layer and oil reservoir, but worry meeting Scalp and hair are caused to damage, thus preferably contained substantially no.It should be noted that in this specification " substantially not Containing " refer to " not containing separately ", it is not excluded that a small amount of organic solvent contained in described other ingredients etc..

Two-layer hair cosmetics

From the viewpoint of whether being separated into two layers, the oil relative to aqueous layer contg in the two-layer hair cosmetics Layer content (oil reservoir/water layer, mass ratio) is 20.0/80.0 or more, preferably 25.0/75.0 or more, more preferably 30.0/70.0 More than.In addition, from the viewpoint of whether being separated into two layers, the oil reservoir content (oil reservoir/water layer) relative to aqueous layer contg is preferred For 70.0/30.0 hereinafter, more preferably 65.0/35.0 is hereinafter, further preferably 60.0/40.0 or less.

From the viewpoint of it can confirm the viewpoint of emulsified state, taste by visual observation, the oil reservoir and the water layer It is preferred that by least 1 layer mixture pigments or dyes etc. coloured.Furthermore it is preferred that be made be filled into it is transparent or semitransparent Container in made of product.

The manufacturing method of the two-layer hair cosmetics of the present invention is not particularly limited, and can be to prepare oil-yielding stratum respectively With the method etc. that one is added after water layer.

The two-layer hair cosmetics of the present invention can be such that oil reservoir and water layer easily emulsifies when in use, not send out It is viscous, it can be equably applied to hair entirety, thus it is preferably made flushing-free hair conditioner (the out bath without flushing Treatment) etc..

The application method of two-layer hair cosmetics as the present invention, can enumerate following application methods：Before use Product is fully vibrated, after so that oil reservoir is emulsified with water layer, is taken out before the separation of oil reservoir and water layer starts and arrives palm in right amount, in hand It after the palm is sufficiently spread out, is applied on hair, is made it dry later by the drying that spontaneously dries or dry.

Embodiment

In the following, the present invention is described in more detail based on embodiment, but the present invention is not limited to these embodiments.It needs It is noted that being recorded as long as no special, then blend amount indicates " quality % ", and compounding ingredients are scaled pure ingredient.

The main component used in embodiment and comparative example is shown.

Ingredient A

Height polymerization dimethicone：25 DEG C of kinematic viscosity is 18,000,000 mm²/s

Other ingredients (oil reservoir)

Fixedness silicone oil 1：KF 96-350CS (Shin-Etsu Chemial Co., Ltd's manufacture)

Fixedness silicone oil 2：DOW CORNING TORAY SH200C FLUID 60,000CS(Dow Corning Toray Co., Ltd. manufactures)

Atoleine：Carnation (manufacture of Sonneborn Inc companies)

Parleam：MARUKASOL R (Maruzen Petrochemical Co., Ltd.'s manufacture)

Ingredient B

Ethyl alcohol：95 ° of general fermenting alcohols

Ingredient C

Lauryl trimethyl ammonium chloride：(Kao Corp's manufacture, contains isopropanol at purity 27% to QUARTAMIN 24P 20%, water 53%)

CAE：N- coco-nut oil fatty acids acyl group-L-arginine ethyl ester DL- pyrrolidone carboxylic acid salts (aginomoto strain formula meeting Society manufactures)

Ingredient D

Hydroxypropyl methyl cellulose：Metolose 60SH-4000 (Shin-Etsu Chemial Co., Ltd's manufacture)

Other ingredients (water layer)

Stearyl trimethyl ammonium chloride：QUARTAMIN 86W (Kao Corp's manufacture, purity 28%, water 72%)

Sodium chloride：Na Network Le M (Naikai Salt Industries Co., LTD manufacture)

Glycerine：Cosmetic concentrated glycerin (this pharmaceutical industries of slope Co., Ltd.)

PPG-2-Deceth-7：EMALEX DAPE-0207 (NIHON EMULSION Co., Ltd. manufacture)

The preparation of sample

It will be filled to transparent circular according to the prepared two-layer hair cosmetics of each composition described in table 1~3 In pet container, the evaluation test sample of Examples 1 to 10 and comparative example 1~9 is thus prepared.By obtained each sample For following evaluation tests.Result is remembered in table 1~3 together respectively.

The evaluation test of use feeling

It after each sample of embodiment and comparative example is fully vibrated, takes out and arrives palm in right amount, after palm is sufficiently spread out, apply On cloth to the topknot (30cm) of artificial hair, make its fusion, according to the tacky and coating of following benchmark evaluations.

◎ (very good)：It is answered without tacky for 9 or more in 10

Zero (good)：It is answered without tacky for 7~8 in 10

△ (slightly worse)：It is answered without tacky for 4~6 in 10

× (poor)：It is answered without tacky for 3 or less in 10

◎ (very good)：In 10 9 or more answer there is no flowed down from palm, the extension amalgamation on hair Well, coating is good

Zero (good)：In 10 7~8 answer there is no flowed down from palm, the extension amalgamation on hair is good, coating Property is good

△ (slightly worse)：In 10 4~6 answer there is no flowed down from palm, the extension amalgamation on hair is good, coating Property is good

× (poor)：In 10 3 or less answer there is no flowed down from palm, the extension amalgamation on hair is good, coating Property is good

Emulsify the evaluation of easiness

Each sample of embodiment and comparative example is vibrated to oil reservoir and water layer and is emulsified uniformly, according to following benchmark evaluations breast Change easiness.

◎ (very good)：9 or more answers can be emulsified easily in 10

Zero (good)：7~8 answers can be emulsified easily in 10

△ (slightly worse)：4~6 answers can be emulsified easily in 10

× (poor)：3 or less answers can be emulsified easily in 10

The evaluation of emulsification and separation

Each sample of embodiment and comparative example is vibrated to oil reservoir and water layer emulsification uniformly, is stood under isoperibol, The emulsified state of visual confirmation after five minutes and the discrete state after 1 hour, after 3 hours and after 5 hours, according to following benchmark It is evaluated.

◎ (very good)：Equably gonorrhoea is able to confirm that emulsified state, does not confirm separation.

Zero (good)：Gonorrhoea is able to confirm that emulsified state, but slightly confirms the oil reservoir of separation on upper layer.

△ (slightly worse)：Gonorrhoea is able to confirm that emulsified state, but confirms the oil reservoir of separation on upper layer, also confirms in lower layer To the water layer of separation.

× (poor)：It can not confirm emulsified state, be separated into oil reservoir and water layer.

Zero (good)：It can not confirm emulsified state, be separated into two layers with the clear state in interface.

△ (slightly worse)：Due to malsegregation, 1/3 emulsion layer below of total volume is confirmed near interface.

× (poor)：Due to malsegregation, 1/3 or more emulsion layer of total volume is confirmed near interface.

【Table 1】

【Table 2】

【Table 3】

By the result of table 1~3 it is found that although the two-layer hair cosmetics of the present invention fully contain oil reservoir, when using Oil reservoir and the emulsification of water layer be easy, and rapidly separated with water layer using rear oil reservoir, using easy, taste is excellent, into And it is not tacky when in use, it is excellent in the coating of hair entirety.

In the following, showing the Formulation Example of the two-layer hair cosmetics of the present invention.

Formulation Example 1

Formulation Example 2

Claims

It is described for by this two layers two-layer hair cosmetics constituted of oil reservoir and water layer 1. a kind of two-layer hair cosmetics Oil reservoir contains following compositions A, and the water layer contains following compositions B, following compositions C, following compositions D and following compositions E,

It is 20.0/80.0 or more relative to the oil reservoir content of aqueous layer contg, oil reservoir/water layer i.e. by quality ratio,

Contents of the ingredient B in water layer is 20~32 mass %,

Ingredient A：25 DEG C of kinematic viscosity is 100,000 mm²The dimethicone and/or dimethiconol of/s or more,

Ingredient B：The lower alcohol that carbon atom number is 2~5,

Ingredient C：Lauryl trimethyl ammonium chloride and/or N- coco-nut oil fatty acids acyl group-L-arginine ethyl ester DL- pyrrolidines Keto carboxylic acid salt,

Ingredient D：Water soluble polymer thickener,

Ingredient E：Water.
2. two-layer hair cosmetics as described in claim 1, wherein the ingredient C is in two-layer hair cosmetics Content is 0.01~0.30 mass %.