JP2018027905A - Hair composition for spray - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hair composition for a spray which can keep a hairstyle with a soft texture for a long time and is not very sticky.SOLUTION: The hair composition for a spray contains (A) an (acrylate/alkyl acrylate/alkylacrylamide) copolymer or a salt thereof, (B) an (acrylate/octylacrylamide) copolymer or a salt thereof, and (C) ethanol, where the weight ratio between contained (A) and (B) is 1:0.3-1.SELECTED DRAWING: None

Description

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

  Various hair compositions have been developed in the past, and many hair compositions (hairdressing compositions) for maintaining the hair style are also known. Particularly in the field of hair styling, a hair styling composition for spraying in which a liquid composition is sprayed from a sprayer and applied to the hair is suitably used. Such a composition generally contains a resin (set resin) for maintaining the hair style (for example, Patent Document 1). However, with conventional hair styling compositions, the mist particles during spraying are not sufficiently small, and since the spraying force is strong, the composition sticks to the entire hair and the hair becomes one lump. For this reason, it is difficult to make hair with a soft and soft texture, and the airy feeling is often lost.

  To achieve a soft texture, instead of keeping multiple hairs together as a lump, make sure that the mists of minute hair-styling compositions adhere to each hair, and that each hair It is conceivable to keep the shape of the whole hair by sticking the dots with dots. Alternatively, it may be possible to reduce the spraying force and prevent the composition from sticking to the entire hair. However, reducing the spray momentum and making the mist fine are usually technically contradictory. That is, by spraying the spray composition through a small hole vigorously, fine particles are generated by breaking force when jumping out from the hole, so that the finer particles are generated as the spraying force increases, the spraying force is weakened The mist will become larger.

  In addition, when the set resin is blended, the hair keeping power is improved, and when the set resin is blended to improve the keeping power, the viscosity of the liquid composition increases, and it is difficult to obtain fine mists during spraying. To do. For this reason, it is not easy to obtain a hair composition for spraying that is excellent in keeping power and becomes fine mist when sprayed.

  Furthermore, when the amount of the set resin is increased, there is a problem that the viscosity is increased by that amount, resulting in stickiness.

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

Japanese Patent Laid-Open No. 2006-69298

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

  The present inventors have found that the above problems can be solved by using a specific set resin in combination, and have made further improvements to complete the present invention.

The invention encompasses, for example, the subject matter described in the following sections.
Item 1.
(A): (Acrylates / alkyl acrylate / alkyl acrylamide) copolymer or salt thereof,
(B): (Acrylates / octylacrylamide) copolymer or salt thereof, and (C): ethanol, and the weight ratio of (A) and (B) contained is 1: 0.3-1 (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)
Spray hair composition.
Item 2.
Item 4. The hair composition for spraying according to Item 1, further comprising an atomizing gas.
Item 3.
Item 3. The method according to Item 1 or 2, wherein (A) is an (acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP, and (B) is an (acrylates / octylacrylamide) copolymer. Spray hair composition.
Item 4.
(A): (Acrylates / alkyl acrylate / alkyl acrylamide) copolymer or salt thereof,
(B): (Acrylates / octylacrylamide) copolymer or salt thereof, and (C): containing ethanol (and preferably not containing spray gas), the weight ratio of (A) to (B) being 1 : 0.3-1 (preferably 1: 0.4-0.9, more preferably 1: 0.4-0.8, still more preferably 1: 0.5-0.7)
5. A hair styling composition (preferably a hair styling liquid composition for preparing a hair composition for spraying, 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.
Item 5. A method for producing a hair composition for spraying, comprising the step of mixing the hairdressing composition according to Item 4 and a spray gas.
Item 6.
Item 4. The hair composition for spraying according to any one of Items 1 to 3, which is for an aerosol spray can having the following constitutions (i) to (iii).
(I) No vapor tap (VT) hole in the housing (ii) The inner diameter of the dip tube is 0.8 to 1.5 mm
(Iii) Stem hole diameter is 0.2-0.6 mm

  By spraying the hair composition for spraying of the present invention, a hair set with a soft texture can be kept for a long time and a hair set with little stickiness can be obtained.

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

  The spray hair composition encompassed by the present invention comprises (A) (acrylates / alkyl acrylate / alkyl acrylamide) copolymer, (B) (acrylates / octyl acrylamide) copolymer, and (C) ethanol. In this specification, these components may be referred to as a component (A), a component (B), and a component (C), respectively.

  Component (A) is a copolymer of acrylates, alkyl acrylate (ie, alkyl acrylate ester), and alkyl acrylamide. The alkyl ester of acrylic acid is preferably an ester of acrylic acid and alkyl having 1 to 18 carbon atoms. Moreover, it is preferable that the alkyl in the said alkyl acrylamide is C1-C8. Component (A) that satisfies these preferred carbon numbers is referred to as “(acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer” and is particularly preferred 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 suitably used. Of these, AMP salts are preferred. These salts are also referred to as “(acrylates / alkyl acrylate / alkyl acrylamide) copolymer AMP” and “(acrylates / alkyl acrylate / alkyl acrylamide) 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 included in the spray composition. . The salt can be formed by carboxylic acid derived from acrylic acid or methacrylic acid contained in acrylates, AMP, AMPD, or the like.

  A commercial item can also be purchased and used as a component (A). As a commercial item, plus size L-9715, plus size L-9909B (above, Kyosei Chemical Industry) etc. are mentioned, for example.

  Component (B) is a copolymer of octylacrylamide and acrylates. 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 suitably used. Of these, AMP salts are preferred. These salts are also referred to as “(acrylates / octylacrylamide) copolymer AMP” and “(acrylates / octylacrylamide) copolymer AMPD”, respectively. When a salt is used as the component (B), the salt may be ionized in the spray composition, and in this case, the component (B) is included in the embodiment included in the spray composition. . The salt can be formed by carboxylic acid derived from acrylic acid or methacrylic acid contained in acrylates, AMP, AMPD, or the like.

  A commercial item can also be purchased and used as a component (B). Examples include AMPHOMER HC (Akzo Nobel).

  Although not particularly limited, as a particularly preferable combination of component (A) and component (B), “(acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP” and “(acrylates / Octylacrylamide) copolymers ".

  The acrylates are at least one monomer selected from the group consisting of acrylic acid, methacrylic acid, and alkyl esters thereof (that is, alkyl acrylate and alkyl methacrylate). The alkyl ester in the “acrylic acid, methacrylic acid or their alkyl ester” herein is an ester of 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) and the component (B) contained in the spray composition is 1: 0.3 to 1, preferably 1: 0.4 to 0.9. Preferably it is 1: 0.4-0.8, More preferably, it is 1: 0.5-0.7.

  In addition to the above-mentioned components, the spray hair composition contains various components that are blended in conventionally known hair cosmetics such as hair styling agents, as long as the effects of the present invention are not impaired. be able to. For example, vegetable oil, hydrocarbon (squalane, paraffin, etc.), ester oil, silicone oil, saccharide, polymer other than components (A) and (B), anionic surfactant, nonionic surfactant (polyoxyethylene cured) Castor oil, polyoxyethylene alkyl ether, etc.), amphoteric surfactants, cationic surfactants, plant and seaweed extracts, amino acids (leucine, lysine, glutamic acid, arginine, etc.), peptides or their derivatives, vitamins, UV protection agents ( Hydroxymethoxybenzophenonesulfonic acid, etc.), antibacterial agents, antiseptics, antioxidants (tocopherols, etc.), sequestering agents, 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-propanedioe (AMPD), and the like.

  Examples of vegetable oils include avocado oil, shea fat, meadow foam oil, macadamia nut oil, wasabi seed oil, castor oil, rice bran oil, rosehip oil, Argania spinosa kernel oil, baobab seed oil, coconut oil, hydrogenated oil, evening primrose Examples include oil and olive oil.

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

  Examples of ester oils include isopropyl myristate, butyl myristate, isopropyl palmitate, cetyl caprylate, oleyl oleate, isostearyl laurate, isotridecyl myristate, 2-hexyldecyl myristate, isostearyl myristate, 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 di-2-ethylhexanoate, propylene glycol dicaprylate, propylene glycol di (capryl / capric acid) Cole, glyceryl tricaprylate, glyceryl tri-2-ethylhexanoate, glyceryl tri (capryl / caprate), pentaerythritol tetra-2-ethylhexanoate, pentaerythritol tetraisostearate, 2-octyldodecyl neopentanoate, 2-ethylhexanoic acid 2-hexyldecyl, 2-ethylhexanoate isostearyl, 2-ethylhexyl isononanoate, 2-hexyldecyl dimethyloctanoate, 2-octyldecyl dimethyloctanoate, 2-ethylhexyl isopalmitate, 2-hexyldecyl isostearate, isostearic Isostearyl acid, 2-octyl dodecyl isostearate, lauryl lactate, 2-octyl dodecyl lactate, dicaprylyl carbonate, tri-2-ethylhexyl citrate, di malate Thearyl, di-2-ethylhexyl succinate, diisopropyl adipate, diisobutyl adipate, di-2-ethylhexyl adipate, diethyl sebacate, diisopropyl sebacate, di-2-ethylhexyl sebacate, dibutyloctyl sebacate, 12-stearoylhydroxystearic acid Examples include isocetyl, stearyl 12-stearoylhydroxystearate, and isostearyl 12-stearoylhydroxystearate.

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

  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, Acrylic acid / acrylic acid amide / ethyl acrylate copolymer, alkyl acrylate copolymer, acrylic acid octylamide / hydroxypropyl acrylate / butylaminoethyl methacrylate copolymer, butyl acrylate / hydroxyethyl methacrylate copolymer Polymer, hydroxyethyl acrylate / butyl acrylate / methoxyethyl acrylate copolymer, alkyl acrylate / vinyl acetate copolymer, vinyl acetate / vinyl pyrrolidone 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, N -Dimethylaminoethyl methacrylic acid copolymer diethyl sulfate, polyurethane-14, etc. are mentioned. However, many of these polymers are used as set resins and may be used in the present invention because they may improve the viscosity of the hair composition or change the hair's keeping power (particularly too much). In doing so, it should be noted that the effects of the present invention are not particularly impaired.

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

  When the spray composition according to the present invention contains a spray gas, a composition not containing the spray gas can be prepared, and the spray composition can be mixed with the spray gas to prepare the spray composition. This composition containing no atomizing gas is particularly referred to herein as a hairdressing composition. A hair styling composition is also included in the spray composition according to the present invention. Therefore, the description about the composition for spray mentioned above applies as it is about the hairdressing liquid composition except the point regarding spray gas.

  The content ratio between the hairdressing composition and the spray gas in the hair composition for spraying is preferably a weight ratio, for example, hairdressing composition / spray gas = 20/80 to 70/30, and 40/60 to More preferably, it is 60/40. Moreover, when the hair composition for spraying has spray gas, it is preferable that the spray gas content is 30-80 w / w%, and it is more preferable that it is 40-60 w / w%.

  Moreover, although it does not restrict | limit especially, it is preferable that about 80-98 weight% of component (C) is contained in a hairdressing liquid composition, and it is more preferable that it is contained about 85-95 weight%. In addition, when the spray hair composition has a spray gas, the content (% by weight) of the component (C) in the spray hair composition is a value obtained by subtracting the spray gas content (% by weight) from 100%. A value obtained by multiplying by 0.8 to 0.98 is preferable, and a value obtained by multiplying by 0.85 to 0.95 is more preferable. Specifically, for example, about 30 to 60% by weight is preferable, and about 40 to 55% by weight is more preferable.

  Moreover, although it does not restrict | limit in particular, it is preferable that a component (A) is contained in about 1-10 weight% in a hairdressing liquid composition, and it is more preferable that it is contained about 1.5-5 weight%. When the spray hair composition has a spray gas, the content (% by weight) of the component (A) in the spray hair composition is a value obtained by subtracting the spray gas content (% by weight) from 100%. A value obtained by multiplying by 0.01 to 0.1 is preferable, and a value obtained by multiplying by 0.015 to 0.05 is more preferable. 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 hair composition for spray according to the present invention is preferably an aerosol spray can. Among these, a housing that does not have a vapor tap (VT) hole is preferable. The dip tube preferably has an inner diameter of 0.8 to 1.5 mm, more preferably 1.0 to 1.3 mm, and still more preferably 1.0 or 1.3 mm. Moreover, the thing of the hole diameter of a stem of 0.2-0.6 mm is preferable, the thing of 0.3-0.5 mm is more preferable, and the thing of 0.3 or 0.5 mm is further more preferable. In particular, it is preferable that the housing does not have a vapor tap (VT) hole but 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 this specification, “including” includes “consisting essentially of” 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.

<Raw materials>
Plus Size L-9909B, Plus Size-L9715, and Plus Size-L9959 (above, Kyoyo Chemical Co., Ltd.) were mixed at 120: 60: 1 (weight ratio), and “(acrylates / 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 (alkylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP are mixed at about 60:40 (weight ratio). An amine solution, plus size-L9715, ethanol and (acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP are mixed at about 60:36 (weight ratio), An acrylic resin alkanolamine solution in which 96 parts by weight of a mixture is added with a total of 4 parts by weight of triethylhexanoin, hydrogenated polyisobutene, and polysilicone-13, plus size-L9959 is ethanol and (acrylates / alkyl acrylate ( C1-18) / A Kill (C1-8) acrylamide) copolymer AMP was mixed at about 60:39 (weight ratio), and 99 parts by weight of the mixture was further added with 1 part by weight of stearamidopropyldimethylamine and polysilicone-13. It is a resin alkanolamine solution.

  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 oil”.

  In addition, AMPHOMER HC (Akzo Nobel) is used as an (acrylates / octylacrylamide) copolymer, AMP-ULTRA PC 1000 (ANGUS) is used as 2-amino-2-methyl-1-propanol (AMP), and Pearl Ream 3 is used as a hydrogenated polyisobutene. (Nippon Oil) and KF-96A-6cs (Shin-Etsu Chemical) were used as dimethicone, respectively.

<Preparation of composition>
According to the composition described in Table 1, each component was mixed to prepare a hair spray composition (hairdressing liquid composition). In addition, the unit of the numerical value which shows the component amount of Table 1 was g (gram), and prepared 100g of each composition of each example.

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

Drying speed (minutes)
Using a rigid pendulum physical property tester RPT-3000W (manufactured by A & D Co., Ltd.), the speed of drying 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 drying property in terms of increase / decrease in friction. Specifically, the sample was obtained by uniformly applying hair to an aluminum plate (5 cm × 2 cm), placing a round bar cylinder edge on the sample, and then applying aerosol spray containing each composition uniformly for 3 seconds. Injected, the pendulum was vibrated, and the logarithmic decay rate of the vibration was measured. When a styling agent such as a hair spray is applied to the hair, the logarithmic decay rate rapidly increases as the applied agent begins to dry. The time taken for this change point to appear was measured as the speed of drying of the drug. 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 fast drying to be impossible to measure” means that the above change point appears in less than 6 seconds, and the composition obtained as a result is considered to be excellent in drying speed. It is done. Moreover, it can be said that it is a composition without stickiness, so that it dries quickly.

Curl retention (%)
A hair bundle (length (L): 17.5 cm, weight: 2 g) wetted with water was wound around a rod and completely dried. The aerosol product is sprayed uniformly for 3 seconds, allowed to dry naturally, and the hair removed from the rod is suspended in a constant temperature and humidity chamber under certain conditions (temperature: 25 ° C., humidity: 95%) and left for 3 hours. did. Curling retention (curl retention rate) was calculated by the following formula, assuming that the length at this time (when sprayed and naturally dried) was L1, and the length after standing for 3 hours was L3. In addition, when the curl retention is 60% or more, it is considered that the hairstyle keeping force is excellent.

  Curl retention (%) = (L−L3) / (L−L1) × 100

  The results are shown in Table 1.

  As shown in Table 1, (Acrylates / Alkyl Acrylate (C1-18) / Alkyl (C1-8) acrylamide) Copolymer AMP and (Acrylates / Octylacrylamide) Copolymer were included, and their weight ratio was 1: In the case of 0.3 to 1, both the drying speed and the curl retention were excellent.

<Spray test>
The hair styling composition of Example 1 was mixed with LPG gas of the same weight as this to prepare a hair composition for hair spray, which was enclosed in an aerosol spray can. And the particle diameter and momentum (wind speed) of the fog at the time of spraying 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 stem having a hole diameter of 0.3 or 0.5 mm was used. The structure of the aerosol spray can used in the evaluation of the speed of drying after spraying and curl retention described above does not have a vapor tap (VT) hole in the housing, and a dip tube with an inner diameter of 1.0 and 0.3 mm. It is provided with a stem having a hole diameter of.

  The measurement method of the particle diameter of fog is as follows. The composition is sprayed toward a spray particle size distribution measuring apparatus (manufactured by Microtrac Bell Inc., device name: Aerotrac LDSA-SPR3500A) installed at a position 20 cm away from the nozzle of the aerosol spray can. 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 measurement method of the wind speed of fog is as follows. The composition is sprayed toward a wind speed measuring device (Sato Corporation, device name: 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, in the case of using the spray can of any structure, the valve was not clogged during spraying, and stable spraying was possible.

  The measurement results are shown in Table 2.

  From Table 2, when the spray hair composition according to the present invention is sprayed using any of the above aerosol spray cans, the particle size of the mist is very fine and the mist momentum is not strong. I understood that. Therefore, the composition can give very fine mists even when sprayed, even though the momentum is relatively weak, and it allows hairstyling with a soft and soft texture and has an excellent airy feeling. It was confirmed that

Claims (5)

(A): (Acrylates / alkyl acrylate / alkyl acrylamide) copolymer or salt thereof,
(B): an (acrylates / octylacrylamide) copolymer or a salt thereof, and (C): ethanol, the weight ratio of (A) and (B) contained is 1: 0.3-1
Spray hair composition. The spray hair composition according to claim 1, further comprising a spray gas. 3. (A) is an (acrylates / alkyl acrylate (C1-18) / alkyl (C1-8) acrylamide) copolymer AMP, and (B) is an (acrylates / octylacrylamide) copolymer. Hair composition for spraying. (A): (Acrylates / alkyl acrylate / alkyl acrylamide) copolymer or salt thereof,
(B): an (acrylates / octylacrylamide) copolymer or a salt thereof, and (C): ethanol, the weight ratio of (A) and (B) contained is 1: 0.3-1
Hair styling composition. The manufacturing method of the hair composition for sprays including the process of mixing the hair-styling composition and spray gas of Claim 4.