JP6797600B2 - Hair composition for spray - Google Patents

Description

The present invention relates to a hair composition for spraying, a hair styling liquid composition used for the hair composition for spraying, and the like.

Various hair compositions have been conventionally developed, and many hair compositions (hair styling compositions) for maintaining the style of hair are also known. In particular, in the field of hair styling, a hair styling composition for spraying, which is applied to hair by spraying a liquid composition from a sprayer, is preferably used. Such a composition generally contains a resin (set resin) for maintaining the style of hair (for example, Patent Document 1). However, in the conventional hair styling composition, the mist particles at the time of spraying are not sufficiently small, and the force of spraying is strong, so that the composition adheres to the entire hair and the hair becomes one lump. Because of this, it is difficult to style hair with a soft and fluffy texture, and the airy feeling is often lost.

To achieve a soft texture, instead of keeping multiple hairs together as a single lump, make sure that the mist particles of the fine hair conditioning composition adhere to each hair, and each hair is individually. It is conceivable to keep the shape of the entire hair by bringing the hair into close contact with the dots. Alternatively, it is conceivable to reduce the momentum of the spray to prevent the composition from sticking to the entire hair. However, weakening the spray force and making the mist particles finer are usually technically contradictory. That is, by spraying the composition for spraying vigorously through a small hole, fine particles are generated by the breaking force when the composition is ejected from the hole. And the mist particles become large.

In addition, while the hair keeping power is improved by blending the set resin, there is also a situation that the viscosity of the liquid composition increases when the set resin is blended to improve the keeping power, and it is difficult to obtain fine mist particles at the time of spraying. To do. For this reason, it is not easy to obtain a hair composition for spraying, which has excellent keeping power and becomes fine mist particles when sprayed.

Further, as the amount of the set resin compounded increases, the viscosity increases accordingly, and as a result, there is a problem that stickiness occurs.

Under these circumstances, it is not easy to obtain a hair composition for spraying, which can keep a hairstyle with a soft texture for a long time and has less stickiness, and its development has been desired.

Japanese Unexamined Patent Publication No. 2016-6298

An object of the present invention is to obtain a hair composition for spraying, which can keep a hairstyle with a soft texture for a long time and has less stickiness.

The present inventors have found the possibility of solving the above-mentioned problems by using a specific set resin in combination, and have made further improvements to complete the present invention.

The present invention includes, for example, the subjects described in the following sections.
Item 1.
(A): (Acrylate / alkyl acrylate / alkyl acrylamide) copolymer or salt thereof,
(B): (Acrylate / octylacrylamide) copolymer or salt thereof, and (C): ethanol are contained, and the weight ratio of (A) to (B) contained is 1: 0.3 to 1 (preferably). Is 1: 0.4 to 0.9, more preferably 1: 0.4 to 0.8, still more preferably 1: 0.5 to 0.7).
Hair composition for spraying.
Item 2.
Item 2. The hair composition for spraying according to Item 1, further comprising a spray gas.
Item 3.
Item 1 or 2, wherein (A) is a (Acrylate / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP and (B) is a (Acrylate / octylacrylamide) copolymer. Hair composition for spraying.
Item 4.
(A): (Acrylate / alkyl acrylate / alkyl acrylamide) copolymer or salt thereof,
(B): (Acrylate / octylacrylamide) copolymer or salt thereof, and (C): contains ethanol (and preferably does not contain spray gas), and the weight ratio of (A) to (B) is 1. : 0.3 to 1 (preferably 1: 0.4 to 0.9, more preferably 1: 0.4 to 0.8, still more preferably 1: 0.5 to 0.7).
A hair styling liquid composition (preferably a hair styling liquid composition for preparing a hair composition for spraying, and more preferably a hair styling liquid composition for preparing a hair composition for spraying according to any one of Items 1 to 4. ).
Item 5.
A method for producing a hair composition for spraying, which comprises the step of mixing the hair styling liquid composition according to Item 4 with a spray gas.
Item 6.
Item 2. The hair composition for spraying according to any one of Items 1 to 3, which is for an aerosol spray can having the following configurations (i) to (iii).
(I) The housing does not have a vapor tap (VT) hole. (Ii) The inner diameter of the dip tube is 0.8 to 1.5 mm.
(Iii) Stem hole diameter is 0.2 to 0.6 mm

By spraying the hair composition for spraying of the present invention, it is possible to keep a hairstyle with a soft texture for a long time and to make a hair set with less stickiness.

Hereinafter, each embodiment of the present invention will be described in more detail.

The hair composition for spray included in the present invention includes (A) (Acrylate / alkyl acrylate / alkylacrylamide) copolymer, (B) (Acrylate / octylacrylamide) copolymer, and (C) ethanol. In the present specification, these components may be referred to as a component (A), a component (B), and a component (C), respectively.

The component (A) is a copolymer of acrylic acid, alkyl acrylate (ie, alkyl acrylate), and alkyl acrylamide. The acrylic acid alkyl ester is preferably an ester of acrylic acid and an alkyl having 1 to 18 carbon atoms. Further, the alkyl in the alkyl acrylamide preferably has 1 to 8 carbon atoms. The component (A) satisfying these preferable carbon numbers is called "(Acrylate / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer" and is particularly preferable for use in the present invention.

The component (A) used may be a salt, for example, a salt with 2-amino-2-methyl-1-propanol (AMP) or 2-amino-2-methyl-1,3-propanediol (AMPD). Can be preferably used. Of these, the AMP salt is preferable. These salts are also referred to as "(Acrylate / alkyl acrylate / alkylacrylamide) copolymer AMP" and "(Acrylate / alkyl acrylate / alkylacrylamide) copolymer AMPD", respectively. When a salt is used as the component (A), the salt may be ionized in the spray composition, but this case is also included in the embodiment in which the component (A) is contained in the spray composition. .. The salt can be formed by AMP, AMPD, or the like with a carboxylic acid derived from acrylic acid or methacrylic acid contained in Acrylate.

As the component (A), a commercially available product may be purchased and used. Examples of commercially available products include plus size L-9715 and plus size L-9909B (above, GOO CHEMICAL CO., LTD.).

The component (B) is a copolymer of octylacrylamide and Acrylate. The component (B) used may be a salt, for example, a salt with 2-amino-2-methyl-1-propanol (AMP) or 2-amino-2-methyl-1,3-propanediol (AMPD). Can be preferably used. Of these, the AMP salt is preferable. These salts are also referred to as "(Acrylate / Octylacrylamide) Copolymer AMP" and "(Acrylate / Octylacrylamide) Copolymer AMPD", respectively. When a salt is used as the component (B), the salt may be ionized in the spray composition, but this case is also included in the embodiment in which the component (B) is contained in the spray composition. .. The salt can be formed by AMP, AMPD, or the like with a carboxylic acid derived from acrylic acid or methacrylic acid contained in Acrylate.

As the component (B), a commercially available product may be purchased and used. For example, AMPHOMER HC (AkzoNobel) and the like can be mentioned.

Although not particularly limited, particularly preferable combinations of the component (A) and the component (B) include "(Acrylate / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP" and "(Acrylate /). The combination of "octylacrylamide) copolymer" can be mentioned.

Acrylate is at least one monomer selected from the group consisting of acrylic acid, methacrylic acid, and their alkyl esters (that is, alkyl acrylate and alkyl methacrylate). The alkyl ester in "acrylic acid, methacrylic acid or an alkyl ester thereof" here may be an ester of an alkyl having 1 to 4 carbon atoms (1, 2, 3, or 4) and acrylic acid or methacrylic acid. preferable.

The weight ratio (A: B) of the component (A) to the component (B) contained in the composition for spraying is 1: 0.3 to 1, preferably 1: 0.4 to 0.9, and more. It is preferably 1: 0.4 to 0.8, and more preferably 1: 0.5 to 0.7.

In addition to the above-mentioned components, various components contained in conventionally known hair styling products and other hair cosmetics are blended in the hair composition for spraying as long as the effects of the present invention are not impaired. be able to. For example, vegetable oils, hydrocarbons (squalane, paraffin, etc.), ester oils, silicone oils, sugars, polymers other than components (A) and (B), anionic surfactants, nonionic surfactants (polyoxyethylene curing). Himashima oil, polyoxyethylene alkyl ether, etc.), amphoteric surfactant, cationic surfactant, plant / seaweed extract, amino acids (leucine, lysine, glutamic acid, arginine, etc.), peptides or derivatives thereof, vitamins, UV protection agents ( (Hydroxymethoxybenzophenone sulfonic acid, etc.), antibacterial agents, preservatives, antioxidants (tocopherol, etc.), metal ion blockers, organic acids other than branched fatty acids, fragrances (including essential oils), 2-amino-2-methyl-1 -Propanol (AMP) and 2-amino-2-methyl-1,3-propanediol (AMPD) can be mentioned.

Vegetable oils include, for example, avocado oil, shea butter, meadowfoam oil, macadamia nut oil, wasabi tree seed oil, castor oil, rice bran oil, rose hip oil, argania spinosa kernel oil, baobab seed oil, palm oil, hardened oil, evening primrose. Examples include oil and olive oil.

Examples of paraffin include light paraffin, liquid paraffin and the like, and more specifically, for example, light isoparaffin, liquid isoparaffin, light liquid isoparaffin and the like. Among them, hydrogenated polyisobutene and the like can be preferably used.

Examples of the ester oil include isopropyl myristate, butyl myristate, isopropyl palmitate, cetyl caprylate, oleyl oleate, isostearyl laurate, isotridecyl myristate, 2-hexyldecyl myristate, isostearyl myristate, and myristic acid. 2-octyldodecyl, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, isostearyl palmitate, 2-diethylhexyl stearate, 2-hexyldecyl stearate, ethyl isostearate, isopropyl isostearate, 2-ethylhexanoic acid Cetyl, hexyl isostearate, ethylene glycol di2-ethylhexanoate, propylene glycol dicaprylate, propylene glycol di (caprylic capric acid), glyceryl tricaprylate, glyceryl tri2-ethylhexanoate, glyceryl tri (caprylic capric acid) , Tetra2-ethylhexanoate pentaerythritol, tetraisostearate pentaerythritol, neopentanoate 2-octyldodecyl, 2-ethylhexanoate 2-hexyldecyl, 2-ethylhexanoate isostearyl, isononanoate 2-ethylhexyl, dimethyloctanoic acid 2-Hexyldecyl, 2-octyldodecyl dimethyloctanoate, 2-ethylhexyl isopalmitate, 2-hexyldecyl isostearate, isostearyl isostearate, 2-octyldodecyl isostearate, lauryl lactate, 2-octyldodecyl lactate, dicaprylic carbonate , Tri2-ethylhexyl citrate, distearyl malate, di2-ethylhexyl succinate, diisopropyl adipate, diisobutyl adipate, di2-ethylhexyl adipate, diethyl sebacate, diisopropyl sebacate, di2-ethylhexyl sebacate, Examples thereof include dibutyloctyl sebacate, isocetyl 12-stearoyl hydroxystearate, stearyl 12-stearoyl hydroxystearate, and isostearyl 12-stearoyl hydroxystearate.

Examples of the silicone oil include dimethicone, amino-modified silicone, cyclopentasiloxane, polyether-modified silicone, dimethiconol, and polysilicone 8, 9, 11, 13, 14, or 19.

Examples of the polymer other than the components (A) and (B) include polyvinylpyrrolidone, hydroxyethyl acrylate / butyl acrylate / methoxymethyl acrylate copolymer, hydroxyethyl acrylate / methoxyethyl acrylate copolymer, and the like. Acrylic acid / acrylic acid amide / ethyl acrylate copolymer, alkyl acrylate copolymer, octylamide acrylate / hydroxypropyl acrylate / butylaminoethyl methacrylate copolymer, butyl acrylate / hydroxyethyl methacrylate copolymer Combined, hydroxyethyl acrylate / butyl acrylate / methoxyethyl acrylate copolymer, alkyl acrylate / vinyl acetate copolymer, vinyl acetate / vinylpyrrolidone copolymer, vinyl methyl ether / ethyl maleate copolymer, vinyl Methyl ether / butyl maleate copolymer, vinyl acetate / crotonic acid copolymer, N-methacryloyloxyethyl-N, N-dimethylammonium-N-methylcarboxybetaine / alkyl methacrylate copolymer, vinylpyrrolidone / N, Examples thereof include N-dimethylaminoethyl methacrylate copolymer diethyl sulfate and polyurethane-14. However, these polymers are often used as set resins, and may improve the viscosity of the hair composition or change the hair keeping force (particularly too much), and thus are used in the present invention. In particular, it should be noted that the effect of the present invention is not impaired.

The composition of the present invention is a composition (spray composition) for use in a spray sprayed in a mist form, and is preferably for an aerosol spray. When the hair composition for spraying is used particularly as an aerosol spray (that is, the composition is used in an aerosol spray can), it is preferable that the composition contains a spray gas. As the spray gas, various known spray gases used in aerosol spray products can be used. For example, liquefied gas such as various liquefied petroleum gas (LPG), dimethyl ether (DME), or a mixture thereof; compressed gas such as nitrogen gas and carbon dioxide gas; hydrocarbon compound such as isopentan; and the like. Of these, LPG is preferable.

When the spray composition according to the present invention contains a spray gas, a composition containing no spray gas can be prepared, and the spray gas can be mixed with the composition to prepare the spray composition. This composition containing no spray gas is particularly referred to as a hair styling liquid composition in the present specification. Hair styling liquid compositions are also included in the spray compositions according to the present invention. Therefore, with respect to the hair styling liquid composition, the above description of the spray composition applies as it is, except for the point concerning the spray gas.

The content ratio of the hair styling liquid composition to the spray gas in the hair composition for spraying is preferably, for example, a hair styling liquid composition / spray gas = 20/80 to 70/30, and 40/60 to 40/60 to 70/30. It is more preferably 60/40. When the hair composition for spraying has a spray gas, the content of the spray gas is preferably 30 to 80 w / w%, more preferably 40 to 60 w / w%.

Further, although not particularly limited, the component (C) is preferably contained in the hair styling liquid composition in an amount of about 80 to 98% by weight, more preferably about 85 to 95% by weight. When the hair composition for spraying has a spray gas, the content (% by weight) of the component (C) in the hair composition for spraying is set to a value obtained by subtracting the spray gas content (% by weight) from 100%. It is preferably a value multiplied by 0.8 to 0.98, and more preferably a value multiplied by 0.85 to 0.95. Specifically, for example, about 30 to 60% by weight is preferable, and about 40 to 55% by weight is more preferable.

Further, although not particularly limited, the component (A) is preferably contained in the hair styling liquid composition in an amount of about 1 to 10% by weight, more preferably about 1.5 to 5% by weight. When the spray hair composition has a spray gas, the content (% by weight) of the component (A) in the spray hair composition is set to a value obtained by subtracting the spray gas content (% by weight) from 100%. It is preferably a value multiplied by 0.01 to 0.1, and more preferably a value multiplied by 0.015 to 0.05. Specifically, for example, about 0.4 to 6% by weight is preferable, and about 0.5 to 5% by weight is more preferable.

The spray can containing the spray hair composition according to the present invention is preferably an aerosol spray can. Of these, those having no vapor tap (VT) hole in the housing are preferable. Further, the inner diameter of the dip tube is preferably 0.8 to 1.5 mm, more preferably 1.0 to 1.3 mm, still more preferably 1.0 or 1.3 mm. Further, a stem having a hole diameter of 0.2 to 0.6 mm is preferable, a stem having a hole diameter of 0.3 to 0.5 mm is more preferable, and a stem having a hole diameter of 0.3 or 0.5 mm is further preferable. In particular, it is preferable that the housing does not have a vapor tap (VT) hole and is provided with a dip tube having an inner diameter of 1.0 and a stem having a hole diameter of 0.3 mm.

In addition, in this specification, "including" also includes "consisting essentially" and "consisting of" (The term "comprising" includes "consisting essentially of" and "consisting of.").

Hereinafter, the present invention will be specifically described, but the present invention is not limited to the following examples.

<Ingredients used>
Plus size L-9909B, plus size-L9715, and plus size-L9959 (above, GOO CHEMICAL CO., LTD.) Were mixed at a ratio of 120: 60: 1 (weight ratio) to "(acrylamide / alkyl acrylate (C1-18)". ) / Alkyl (C1-8) acrylamide) copolymer AMP solution ”.

In addition, plus size L-9909B is an acrylic resin alkanol in which ethanol and (Acrylate / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP are mixed at a ratio of about 60:40 (weight ratio). An amine solution, plus size-L9715, is a mixture of ethanol and (Acrylate / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP at a ratio of about 60:36 (weight ratio). Acrylic resin alkanolamine solution in which triethylhexanoin, hydrogenated polyisobutene, and polysilicone-13 were added in a total of 4 parts by weight to 96 parts by weight of the mixture. The C1-18) / alkyl (C1-8) acrylamide) copolymer AMP was mixed at a ratio of about 60:39 (weight ratio), and 99 parts by weight of the mixture was added with stearamidpropyldimethylamine and polysilicone-13 in a total weight of 1 weight. Acrylic resin alkanolamine solution added partially.

Further, lavender oil, sunflower oil, jojoba oil, avocado oil, and hazelnut oil were mixed at a ratio of 1: 500: 500: 500: 500 (weight ratio) and used as "other oils".

In addition, AMPHOMER HC (AkzoNobel) as a (Acrylate / octylacrylamide) copolymer, AMP-ULTRA PC 1000 (ANGUS) as 2-amino-2-methyl-1-propanol (AMP), and Pearl Dream 3 as a hydrogenated polyisobutene. (NOF) and KF-96A-6cs (Shin-Etsu Chemical) were used as dimethicone.

<Preparation of composition>
Each component was mixed according to the composition shown in Table 1 to prepare a hair spray composition (hair styling liquid composition). The unit of the numerical value indicating the amount of the component shown in Table 1 is g (gram), and 100 g of the composition of each example was prepared.

<Evaluation of composition>
The compositions of each example were placed in aerosol spray cans, and the speed of drying after spraying and curl retention (an index of the ability to keep hair in a constant shape) were evaluated as follows. The composition of each example is mixed with the same weight of LPG gas (that is, the composition and LPG gas are mixed at a weight ratio of 50:50) to prepare a hair composition for hair spray, which is used as an aerosol. Enclosed in a spray can. Further, in addition to the composition, LPG gas 0.15 Mpa was sealed in an aerosol spray can as a propellant.

How fast it dries (minutes)
Using a rigid pendulum physical property tester RPT-3000W (manufactured by A & D Co., Ltd.), the drying speed of each composition sprayed on the hair was measured. The rigid pendulum physical property tester RPT-3000W is a device for evaluating changes in surface physical properties such as adhesiveness, viscoelasticity, and dryness from the viewpoint of increase / decrease in friction. Specifically, a sample in which hair is uniformly attached to an aluminum plate (5 cm x 2 cm) is used, a round bar-shaped cylinder edge is placed on the sample, and then an aerosol spray containing each composition is uniformly applied for 3 seconds. The sample was sprayed, the pendulum was vibrated, and the logarithmic decrement of the vibration was measured. When a styling agent such as a hair spray is applied to hair, the logarithmic decrement rate rises sharply when the applied agent begins to dry. The time required for this change point to appear was measured as the speed at which the drug dried. The detailed evaluation conditions are as follows. Frame type: FRB-100, Measuring part shape: Round bar type cylinder edge RBP-020, Sample temperature: 21 ° C (constant).

The results are shown in Table 1. In Table 1, "too quick to measure" means that the above change point appears in less than 6 seconds, and the composition obtained with this result is considered to have excellent drying speed. Be done. Moreover, it can be said that the faster the drying, the less sticky the composition.

Curl retention (%)
A hair bundle moistened with water (length (L): 17.5 cm, weight: 2 g) was wrapped around a rod and completely dried. The above aerosol product is sprayed uniformly for 3 seconds, air-dried, and the hair removed from the rod is hung in a constant temperature and humidity chamber under certain conditions (temperature: 25 ° C., humidity: 95%) and allowed to stand for 3 hours. did. At this time (when sprayed and naturally dried), the length was L1 and the length after being left for 3 hours was L3, and the curl retention (curl retention rate) was calculated by the following formula. When the curl retention is 60% or more, it is considered that the hairstyle keeping power is excellent.

Curl retention (%) = (L-L3) / (L-L1) x 100

The results are shown in Table 1.

As shown in Table 1, the copolymer contains (Acrylate / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer and (Acrylate / octylacrylamide) copolymer, and the weight ratio thereof is 1: 1. In the case of 0.3 to 1, both the quickness of drying and the curl retention were excellent.

<Spray test>
The same weight of LPG gas was mixed with the hair styling liquid composition of Example 1 to prepare a hair composition for hair spray, which was sealed in an aerosol spray can. Then, the particle size and the force (wind speed) of the mist when sprayed were measured.

As the aerosol spray can, a housing having no vapor tap (VT) hole was used. Further, a dip tube having an inner diameter of 1.0 or 1.3 mm and a tube having a stem having a hole diameter of 0.3 or 0.5 mm were used. The structure of the aerosol spray can used in the evaluation of the quickness of drying after spraying and the curl retention is that the housing does not have a vapor tap (VT) hole, and a dip tube having an inner diameter of 1.0 and a dip tube of 0.3 mm are used. It is equipped with a stem with a hole diameter of.

The method for measuring the particle size of fog is as follows. The composition was sprayed onto a spray particle size distribution measuring device (manufactured by Microtrack Bell, device name: Aerotrack LDSA-SPR3500A) installed at a position 20 cm away from the nozzle of the aerosol spray can, and the sprayed droplets were sprayed. The average particle size was measured. The average particle size is a calculated value of the theoretical sphere diameter obtained from the equivalent surface area.

The method for measuring the wind speed of fog is as follows. The composition is sprayed onto a wind speed measuring device (manufactured by Sato Shoji Co., Ltd., device name: wind cup type digital waterproof anemometer AM-4221) installed at a position 25 cm away from the nozzle of the aerosol spray can, and sprayed by the measuring device. The wind speed (m / s) of the fog was measured.

In addition, when a spray can having any structure was used, the valve did not clog during spraying, and stable spraying was possible.

The measurement results are shown in Table 2.

From Table 2, when the hair composition for spraying according to the present invention is sprayed using any of the above aerosol spray cans, the particle size of the mist particles is very fine and the force of the mist is not strong. It turned out. Therefore, when sprayed, the composition can obtain very fine mist particles even though the momentum is relatively weak, and hair styling with a soft and soft texture is possible, and an excellent airy feeling is obtained. It was confirmed that it was possible.

Claims (5)

(A): (Acrylate / alkyl acrylate / alkyl acrylamide) copolymer salt ,
(B): (Acrylate / Octylacrylamide) copolymer and (C): Ethanol, the weight ratio of (A) to (B) contained is 1: 0.4-0.8 .
Composition for application to hair sprays. The composition according to claim 1, further comprising a spray gas. The first or second claim, wherein (A) is a (Acrylate / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP and (B) is a (Acrylate / octylacrylamide) copolymer. Composition . (A): (Acrylate / alkyl acrylate / alkyl acrylamide) copolymer salt ,
(B): (Acrylate / Octylacrylamide) copolymer and (C): Ethanol, the weight ratio of (A) to (B) contained is 1: 0.4-0.8 .
Hair styling liquid composition. To claim 4 comprising the step of mixing and the spray gas hairdressing liquid composition according method for producing a composition for application to hair sprays.