JP2011251919A - Hair dressing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hair dressing method, allowing a person not familiar to hair dressing (for example, a novice beautician) to form a hair style presenting a mixture of heavy and light touches without failure, giving a hair style which hardly collapses even external force is applied, or allowing easy re-dressing even when the style collapses, and eliminating stickiness.SOLUTION: The hair dressing method comprises applying mist of a hair dressing agent having self-selective adhesive to hair, and applying force to the hair in a part to be dressed.

Description

  The present invention relates to a hair styling method.

  In hair styling agents, it is common to increase the blending amount of the set polymer or oil agent in order to increase the holding power of the hairstyle set. However, if the amount of the set polymer is simply increased, the hair that has been set is hard and stiff. In addition, hair cosmetics simply formulated with a set polymer generally do not allow re-styling once the hairstyle has collapsed after styling. On the other hand, in the case of hair cosmetics containing oils such as wax, it is possible to re-hair after the hairstyle has collapsed, but the set holding power is extremely low compared to the set polymer, and the set holding power Increasing the amount of oil to increase hair causes sticky hair on the hair.

  On the other hand, various proposals have been made on hair styling methods for creating a specific hairstyle using a specific hair styling agent, depending on the purpose and hairstyle. For example, Patent Document 1 discloses a hair styling method that provides a light and light unit. According to this hair styling method, since hair styling is performed using an aerosol hair styling agent with high adhesive strength, the hair style can be held for a long time, and even if the hair style breaks down once, hair styling can be performed again. There is no stickiness or wrinkle because the hair conditioner is applied to the inside of the lifted hair. However, this hair styling method should be avoided as much as possible because touching the hair after it is applied due to the high adhesive strength of aerosol hair cosmetics will eventually cause stickiness to the hand. In fact, although it is disclosed in the specification of Patent Document 1 that pinching is performed with a finger, this is only the minimum hair styling necessary for final fine adjustment.

  Further, Patent Document 2 discloses a method for maintaining a soft style for a long time, specifically, a hair styling method for making a “bun hair”. According to this hair styling method, aerosol-type hair cosmetics with strong adhesive strength are used for hair styling, and in general, several bun-shaped hairs that are difficult to maintain without fixing with a large number of pins are fixed. It can be maintained for a long time just by pinning. As the hair styling method of Patent Document 2, (A) increasing the volume of hair by increasing the crossing of hair, and (B) applying an aerosol hair cosmetic having a coating strength greater than a specific value. Is disclosed as an essential requirement, and the order of (A) and (B) may be either. However, the aerosol-type hair cosmetic used in Patent Document 2 is a type in which once the hairstyle is fixed, the hairstyle cannot be restyled once the hairstyle collapses, so even if (B) is first, the aerosol-type hair cosmetic is used. There is a restriction that (A) must be performed before the hair cosmetic is dried and fixed. Therefore, it is basic to perform (A) first. In fact, what is specifically disclosed in the examples is (A) first and (B) later. In addition, after (B), it is disclosed that “the hair that protrudes from the stubble hair is lightly pressed”, but it is intended for several strands of hair and is intended for a bundle of hair. I'm not.

  As can be seen from the above, after applying aerosol hair cosmetics to hair, it is fundamental not to touch the applied hair, even if touched it is limited to a limited range, It was conventional common sense to touch only under constraints.

  By the way, there is a trend in hairstyles. For example, in recent years, a hairstyle with a sense of unity (“light blended with a heavy style”) (for example, “Fuzzy hair” described on pages 62 to 67 of Non-Patent Document 1). However, in general, various terms are used for the hairstyle.)

JP 2009-7347 JP 2010-1287

spring Hair & Beauty Spring 2009, p.62-67

  The skill of a skilled beautician is required in order to make a hairstyle that is moderately united with a mixture of weight and lightness as disclosed in Non-Patent Document 1. It is extremely difficult to reproduce a hairstyle right away just by looking at this article by an unfamiliar person. In addition, since this hairstyle is generally made with the adhesive strength of wax, even if it is an ideal hairstyle made by a skilled hairdresser, it will collapse even if a slight external force is applied to the hair, and the hairstyle To get back to work, the skill of a skilled beautician is required again. In addition, a sticky feeling due to the adhesive strength of the wax is inevitable.

  Therefore, the present invention makes it possible to create a hairstyle that is a mixture of weight and lightness without failure, even if it is an unfamiliar person (for example, a novice beautician), and is difficult to break even if external force is applied to the hair. It is an object to provide a hair styling method that is simple and has no stickiness.

  The inventors of the present invention are able to surprisingly solve the above-mentioned problems by applying a force to the applied range, contrary to conventional common sense, using a mist-like hairdressing agent having self-selective adhesiveness. I found it.

  That is, the present invention provides a hair styling method in which a hair styling agent having self-selective adhesiveness is applied to the hair in the form of a mist, and then a force is applied to the hair of the application portion.

  The hair styling method of the present invention can make a hairstyle mixed in weight and lightness without failure, even for an unfamiliar person (for example, a novice beautician), and even if external force is applied to the hair, it is difficult to collapse. Even if it breaks down, it is easy to re-hair, and there is no stickiness.

It is an image figure which shows the hair density of the hair | bristle bundle after hairdressing. It is an image figure at the time of performing hairdressing after increasing the intersection of hairs after squeezing. It is an image figure at the time of performing hairdressing to straight hair. It is an image figure of the hairdressing method of this invention. It is an image figure at the time of hair-styling similarly to this invention using the mist-like hairdressing agent by a general adhesion type polymer. It is an image figure at the time of hair-styling similarly to this invention using the mist-like hair-styling agent by a general fixing system polymer.

[Hairdressing agent]
The hair styling agent used in the present invention may be any hair styling as long as it has self-selective adhesiveness defined below as a whole hair styling agent. For example, in addition to polyether polycarbonate having a structural unit represented by the following general formula (1), a polymer having a specific polycarbonate structure disclosed in JP 2008-162945, disclosed in JP 2009-062482 By incorporating a polymer having a polyether polyester structure and the like into the hairdressing agent, self-selective adhesiveness can be imparted to the hairdressing agent. Then, the prescription for the entire hairdressing agent may be determined within a range that does not inhibit the self-selective adhesiveness.

(Self-selective adhesiveness)
In the present invention, the “self-selective adhesiveness” of the hairdressing agent is a physical property value indicating the adhesiveness between the hairdressing agents, which is determined by the measurement method shown below, as “self-adhesion”, When the physical property value indicating the adhesiveness with the person is defined as “other adhesion force”, the relative ratio of other adhesion force / self-adhesion force is 0.7 or less. The other adhesion force / self-adhesion force is preferably 0.5 or less, and more preferably 0.3 or less. Further, it is desirable that the self-adhesion force is in a range of 200 gf or more. More preferably, the self-adhesion force is 200 gf or more, and the other adhesion force is 140 gf or less, more preferably 120 gf or less, and still more preferably 100 gf or less.

<Measurement method of adhesiveness (other adhesion and self-adhesion)>
The solvent of the whole hairdressing object to be measured (and propellant in the case of aerosol type) is once evaporated. All remaining solids are dissolved in a volatile solvent (for example, toluene) that can be dissolved to form a 20% by mass solution. This solution is cast on a PET sheet to a thickness of 500 μm with a bar coater, heated at 60 ° C. for 12 hours, and then allowed to stand at 25 ° C. and 50% RH for 1 day. Using a tacking tester (Resca, TACIIUC-2006), the adhesive strength between the sheet and various materials attached to the probe of the tacking tester is measured.

The measurement conditions were a probe lowering speed of 600 mm / sec, a probe pressing load of 200 gf, and a pressing time of 0.5 sec. A polypropylene disk (engineering test service test piece: Mitsubishi Chemical Noblen NH-8) with an indenter area of 8 mm ² was attached to the tip of the probe, and the adhesive strength was measured. The obtained value was defined as “other adhesion”. On the other hand, a hair styling agent to be measured is dissolved in a volatile solvent (for example, toluene) that can be completely dissolved in the same manner as described above, cast on a PET sheet and dried to form a disk with an indenter area of 8 mm ^2. Was attached to the tip of the probe and the adhesive strength was measured.

(Polyether polycarbonate)
The hairdressing agent used in the present invention can contain any polymer capable of imparting self-selective tackiness to the hairdressing agent, for example, a polymorph having a structural unit represented by the general formula (1) It is preferable to contain an ether polycarbonate.

[In the formula, A represents an alkylene group having 2 to 6 carbon atoms, n represents an average value of 5 to 1000, p represents an average value of 5 to 100, and (n × p) AO may be the same or different. ]

In the general formula (1), (n × p) AOs are preferably composed of at least two alkyleneoxy groups. A is preferably an alkylene group having 2 to 4 carbon atoms, more preferably an alkylene group having 2 or 3 carbon atoms, and (n × p) AOs further comprising a combination of an ethyleneoxy group and a propyleneoxy group. preferable. When (AO) _n is composed of different alkyleneoxy groups, these may be block structures or random structures, but are preferably random structures.

In the general formula (1), n is a number of 5 to 1000 indicating the average number of added moles of an alkyleneoxy group, and a number of 10 to 500 is preferable. p is a number of 5 to 100 indicating the average number of repeats of the [(AO) _n COO] group, and a number of 5 to 50 is preferred.

The polyether polycarbonate can be produced by the method shown in the following (A) or (B), and the method (A) is preferable.
(A) A method comprising a step of transesterifying a carbonate ester and a polyether diol.
(B) A method comprising a step of reacting phosgene and polyether diol.

  In the method (a), examples of the carbonate used for the production of the polyether polycarbonate include dimethyl carbonate, diphenyl carbonate, diethyl carbonate, ethylene carbonate, propylene carbonate, and the like, and dimethyl carbonate and diphenyl carbonate are preferred.

  Polyether diol used in the production of polyether polycarbonate is preferably polyethylene glycol, polypropylene glycol, polytetramethylene glycol, a copolymer of ethylene oxide and propylene oxide, and a random copolymer obtained by copolymerization of ethylene oxide and propylene oxide. Is more preferable. Commercially available products may be used as the polyether diol, and examples thereof include ADEKA polyether PR-3005, 3007, PR-5007 (manufactured by ADEKA Co., Ltd.) and the like.

  The number average molecular weight of the polyether diol is preferably 200 to 50,000, more preferably 400 to 20,000, from the viewpoint of obtaining good solubility in water or alcohol.

  In the production of the polyether polycarbonate, other polyols may coexist in addition to the polyether diol. Other polyols include diols such as ethylene glycol, propylene glycol, butanediol, tetramethylene glycol, 2,2-dimethyl-1,3-propanediol, pentanediol and hexanediol; polyols such as glycerin and pentaerythritol; bisphenol A, aromatic group-containing diols such as ethylene oxide adducts of bisphenol A, and the like.

When the above-mentioned glycerin, pentaerythritol, bisphenol A, ethylene oxide adduct of bisphenol A, etc. coexist as other polyols in the transesterification of carbonate ester and polyether diol, Will contain structural parts derived from these other polyols. In this case, such a structure portion may be a block structure or a random structure, similar to the above-described (AO) _n .

  The ratio of the polyether diol to the total polyol is preferably 50% by mass or more, more preferably 80% by mass or more, and further preferably 90% by mass or more.

  The reaction molar ratio between the carbonate ester and the polyether diol when transesterifying the carbonate ester and the polyether diol is preferably 1 / 0.9 to 1 / 1.1, and more preferably 1 / 0.95 to 1 / 1.05.

  When transesterifying the carbonate ester and the polyether diol, a normal ester exchange reaction catalyst can be used. Examples of such catalysts include alkali metals, alkaline earth metals, and their alkoxides, hydrides, hydroxides, carbonates, acetates, oxides, and the like. Also, use alkoxides, hydrides, hydroxides, carbonates, acetates, oxides, etc. of metals such as zinc, aluminum, tin, titanium, lead, germanium, antimony, bismuth, nickel, iron, manganese, zirconium, etc. You can also. Moreover, organic base compounds, such as a triethylamine and imidazole, can also be used. Among these catalysts, alkoxides of alkali metals such as sodium, potassium, rubidium and cesium, hydrides, hydroxides, carbonates, acetates, oxides, alkoxides and hydroxides of metals such as tin and titanium Carbonate, acetate, oxide and the like are preferable.

  The reaction temperature in the transesterification reaction between the carbonate ester and the polyether diol is preferably 100 to 300 ° C, more preferably 120 to 250 ° C, still more preferably 120 to 200 ° C. The reaction pressure may be normal pressure, but is preferably under reduced pressure.

  In the transesterification reaction, it is desirable to prepare a carbonate ester, a polyether diol, and a catalyst, and stir at the above temperature to remove alcohol released from the carbonate ester from the reaction system. In the case of normal pressure, desorbed alcohol can be effectively removed by circulating an inert gas such as nitrogen. In the case of reduced pressure, the volatilized elimination alcohol can be easily removed out of the system.

  The product obtained by transesterification is preferably subjected to a purification step excluding low molecular weight components. By removing the low molecular weight component, it is possible to reduce the other adhesion (adhesive strength to other things), and it is possible to obtain a better mist-like hairdressing agent with less stickiness.

  The removal of the low molecular weight component can be performed, for example, by solvent purification. More specifically, the product obtained by the transesterification reaction is dissolved in a water-soluble solvent, and a polyether polycarbonate having a small amount of low molecular weight components can be precipitated by adding a hydrophobic solvent.

  Examples of the water-soluble solvent include alcohol solvents such as methanol, ethanol and 2-propanol, acetone and methyl ethyl ketone, and ethanol is preferable. Examples of the hydrophobic solvent include hydrocarbon solvents such as hexane and heptane, and hexane is preferable. By adjusting the amount of the hydrophobic solvent added to the water-soluble solvent, a polyether polycarbonate having a desired molecular weight distribution can be obtained. The amount of the hydrophobic solvent added to the water-soluble solvent is preferably 0.1 to 50 times by volume, more preferably 0.5 to 10 times by volume.

  The weight average molecular weight of the polyether polycarbonate is preferably 50,000 or more, more preferably 70,000 or more, and even more preferably 100,000 or more, from the viewpoint of good self-selective adhesiveness. In addition, from the viewpoint of ease of blending into the mist-like hairdressing agent, washability at the time of washing, etc., it is preferably 1,000,000 or less, more preferably 700,000 or less, and even more preferably 500,000 or less.

  In addition, the weight average molecular weight of polyether polycarbonate and the number average molecular weight of the above-mentioned polyether diol shall mean the value measured by gel permeation chromatography (GPC). More specifically, the product name “HLC-8220GPC” (Tosoh Corporation) is used as the GPC device, and the value is obtained under the following GPC measurement conditions by polystyrene conversion value.

<Measurement method of average molecular weight>
Sample concentration: 0.25% by mass (chloroform solution)
・ Sample injection volume: 100μL
・ Eluent: Chloroform ・ Flow rate: 1.0 mL / min
・ Measurement temperature: 40 ℃
・ Column: Product name “KG” (1) + Product name “K-804L” (2) (above, Shodex)
・ Detector: Differential refractometer (attached to the GPC device trade name “HLC-8220GPC” (Tosoh Corporation))
Standard polystyrene samples: “TSKstandard POLYSTYRENE F-10” (molecular weight 102,000), F-1 (1020,000), A-1000 (870) (above, Tosoh Corporation), and “POLYSTYRENE STANDARD” (molecular weight 900,000, 3 10,000; Nishio Kogyo)

  When the polyether polycarbonate has the above-mentioned self-selective tackiness, very strong tackiness and re-adhesion are possible when the tacky sites are bonded to each other while there is little or low tackiness at room temperature.

  In the conventional aerosol cosmetics capable of re-styling, the hair is fixed by adhesive force, and if the particle size of each mist-like particle adhered to the hair is too large, stickiness may be caused. On the other hand, the polymer capable of imparting self-selective adhesiveness to the hairdressing agent does not cause stickiness regardless of the size of the particles because the polymer itself has good self-selective adhesiveness. Therefore, in the hair styling agent used in the present invention, when the hair styling agent is ejected in the form of a mist, the hair styling agent only has to be particles in a mist range generally used in the field of hair cosmetics. There is no need to adjust the diameter.

  In order to obtain higher hair styling properties and re-styling properties, it is preferable that the pressure-sensitive adhesive is strongly held between the hairs. In a mist-like hairdressing agent, when applied to hair, the polymer adheres to the hair in a state of being plasticized with a solvent, and can enter even fine irregularities. The polymer is fixed on the hair in the course of the subsequent evaporation of the solvent.

  The content of the polymer capable of imparting self-selective tackiness to the hairdressing agent used in the present invention (in the case of an aerosol type, the content in the stock solution; the same shall apply hereinafter) shall have a good set holding power. From the viewpoint, the total content is preferably 0.5 to 15% by mass, more preferably 1 to 10% by mass, and particularly preferably 2 to 7% by mass.

(Other set polymer)
In the hair styling agent used in the present invention, the set holding power can be further improved by adding another set polymer as an optional component. Examples of such a set polymer include alkyl acrylamide / acrylate / alkyl aminoalkyl acrylamide / polyethylene glycol methacrylate copolymers described in JP-A-2-809911, and alkyl acrylamide / alkylaminoalkyl described in JP-A-8-291206. Acrylamide / polyethylene glycol methacrylate copolymer, Yuka Former R205 (Mitsubishi Chemical Co., Ltd.), RAM Resin (Osaka Organic Chemical Co., Ltd.) and other (methacryloyloxyethylcarboxybetaine / alkyl methacrylate) copolymers, Diaformer Z-712 (Mitsubishi Chemical Co., Ltd.) (Acrylates / Lauryl Acrylate / Stearyl Acrylate / Ethylamine Oxide Oxide) Copolymer, etc., (Vinylamine / Vinyl Alcohol) such as Diafix C-601 (Mitsubishi Chemical Corporation) ) Copolymers, (alkyl acrylate / diacetone acrylamide) copolymers such as plus size L-9540B (Kohyo Chemical Co., Ltd.), Ultrahold 8, Acrylic acid / amides / ethyl acrylates such as Strong (above BASF) Copolymers, alkyl acrylate / methacrylic acid / silicone copolymers such as Rubiflex Silk (BASF), polyurethanes such as Rubiset PUR (BASF), polyvinyl caprolactams such as Rubiscol Plus (BASF), Rubimer 100P, Alkyl acrylate copolymers such as 30E (above, BASF), Anformer SH-701, 28-4910, LV-71, LV-47 (above, National Starch & Chemical) (Octylacrylamide / Hydroxypropyl acrylate / Butylaminoethyl methacrylate) Copolymer, Anformer V-42 (Nationala (Alkyl starch / octylacrylamide) copolymers such as Le Starch & Chemical Co.), vinyl acetate / crotonic acid / vinyl neodecanoate) copolymers such as Resin 28-2930 (National Starch & Chemical Co.), Dynam X (National)・ Polyurethane-14 such as Starch & Chemical Co., Ltd. ・ AMP-Acrylates Copolymer, Divinyl Sulfate Quaternary (Polyquaternium-11) of (Vinylpyrrolidone / Dimethylaminoethyl Methacrylate) Copolymer such as Gaffcut 440 (ISP), Guffcut HS -100 (ISP) vinyl pyrrolidone / dimethylaminopropyl methacrylamide) methyl quaternized (polyquaternium-28), Gantrez ES-225 (ISP), etc. (vinyl methyl ether / ethyl maleate) copolymers, Aqua Flex PV-40 (ISP), etc. (PV P / vinyl caprolactam / DMAPA acrylate copolymer, (isobutylene / ethylmaleimide / hydroxyethylmaleimide) copolymer such as Aquaflex FX-64 (ISP), and (vinylpyrrolidone / dimethylamino) such as Stylase W-20 (ISP) Propyl methacrylamide / methacryloylaminopropyl lauryl dimethyl ammonium chloride) copolymer (Polyquaternium-55), Stylee CC-10 (ISP) and other (vinyl pyrrolidone / acrylic acid DMAPA) copolymers, PVP / VA735 (ISP) and Rubiscor VA64P (Vinyl pyrrolidone / vinyl acetate) copolymers such as (BASF).

  These set polymers can be used in combination of two or more, and the content thereof does not inhibit the self-selective adhesiveness of the hairdressing agent, and from the viewpoint of improving the setting power, the hairdressing agent used in the present invention. It is preferably 0.5 to 20% by mass, more preferably 1 to 15% by mass, and further preferably 1.5 to 10% by mass.

(Medium)
As the solvent (supporting medium), water, lower alcohols (ethanol, isopropanol, etc.), lactones, etc. can be used, and these can be used alone or in combination. Among these, from the viewpoint of versatility, water and ethanol are preferable, and ethanol is particularly preferable.

(Optional component)
In addition to the above-described components, a cosmetic oil can be added to the hairdressing agent used in the present invention within a limit (0.1 to 10% by mass) that does not hinder the effects of the present invention. Such cosmetic oils include glycerides such as castor oil, cacao oil, mink oil, avocado oil, olive oil; waxes such as beeswax, whale wax, lanolin, carnauba wax; cetyl alcohol, oleyl alcohol, hexadecyl alcohol Higher alcohols such as lauryl alcohol, stearyl alcohol, isostearyl alcohol, 2-octyldodecanol; isopropyl myristate, hexyl laurate, cetyl lactate, propylene glycol monostearate, oleyl oleate, hexadecyl 2-ethylhexanoate, Esters of myristic acid octyldodecyl acid; liquid oils such as liquid paraffin, petrolatum, squalane, hydrogenated polyisobutene; dimethylpolysiloxane, methylphenylpolysiloxane, polyether modified Examples include silicone derivatives such as silicone oil, epoxy-modified silicone oil, amino-modified silicone oil, and alkyl-modified silicone oil; polypropylene glycol and the like. Furthermore, an emulsifier can be added in order to stabilize the emulsification of these cosmetic oils. As the emulsifier, any of anionic, amphoteric, cationic and nonionic surfactants can be used.

  Furthermore, to the hairdressing agent used in the present invention, a preservative and an antioxidant can be added to increase the commercial value, and an antiseptic and an antioxidant can be added to prevent the daily deterioration of hair cosmetics. Depending on the humidity control agent such as glycerin and propylene glycol, curing agent, antistatic agent, surfactant, antifoaming agent, dispersant, thickener, ultraviolet absorber, antioxidant, preservative, colored dye, Dye fixing agents, propellants and the like can also be added.

(Form)
The dosage form of the hairdressing agent used in the present invention is not limited as long as the hairdressing agent can be applied in the form of a mist, and may be either an aerosol type or a non-aerosol type.

The aerosol mist hairdressing agent is manufactured by filling the pressure-resistant container with the above hairdressing agent together with a propellant. Examples of the propellant include liquefied petroleum gas (LPG), dimethyl ether (DME), carbon dioxide gas, nitrogen gas, and mixtures thereof. Alternatively, alternative CFCs such as HFC-152a can be used. The amount of the propellant is the mass ratio of the stock solution to the propellant in order to obtain good jetting properties and good adhesive properties, and the stock solution / propellant = 5/95 to 99/1, especially 20/80 to 95/5. The range of is preferable. Moreover, in order to obtain a good injection characteristic and a good adhesive characteristic, the pressure in the pressure vessel is preferably adjusted to be 0.12 to 0.45 MPa at a temperature of 25 ° C.
The non-aerosol type mist hairdressing agent is produced by filling the above hairdressing agent into a pump spray container or a trigger spray container.

[Hair shaping method]
(Hairstyle mixed in weight and lightness)
The “hairstyle in which lightness and lightness are mixed” in the present specification refers to “a hairstyle in which lightness is blended with a heavy style”, and specifically, p.62 to 67 of Non-Patent Document 1. The hairstyle shown in the photograph of the article in the range corresponds, and when such a hairstyle is viewed microscopically, it is not too heavy and not too light as shown in FIG. As shown in FIG. 1, when hair is set using a hair wax, the hair bundle after hair shaping has a strong impression and a heavy impression. Also, in the case of hair styling using a conventional mist-like hair styling agent, since the hair style is made and then sprayed, the hair is not touched thereafter, so it is soft but too light.

(Preparation of hair to be applied)
The hair to be applied is preferably in the following state before all the steps are performed.
1) It is preferable to correct the disturbance.
2) It is preferable that no hair styling agent other than the mist-like hair styling agent to be applied is attached, and if it is attached, it is preferable to wash it out in advance.
3) The hair to be applied is dry from the viewpoint of fixing the mist-like particles of the hair styling agent applied to the hair as a point on the hair and placing the adjacent hairs at an appropriate distance to give a moderate soft feeling. It is preferable. Therefore, it is preferable that the hair wet by shampoo or the like is not only towel-dried with a towel, but also moisture is completely evaporated with a dryer.
When a mist-like hair styling agent is applied to wet hair, the hair styling agent particles spread, and the meaning of applying the mist-like hair styling is diminished. In addition, when the hair is wet, the hairs are closely attached to each other, and even if the following operations are performed, it becomes difficult to make a hairstyle that is a mixture of weight and lightness.

(Cross hairs)
When applying the hair styling agent to the hair in the form of a mist, it is preferable to perform a process of crossing the hairs at any time from the stage before application to the time of applying force to the hair of the application part. Here, “crossing hairs” means increasing the number of portions where the hairs cross each other (hereinafter referred to as “crossing points”). Thereby, the probability that a mist-like hairdressing agent is applied to the intersection of hair increases. Since the hairdressing agent particles applied to such hair intersections contribute to fixing the hairs together, hair styling becomes easier (see FIG. 2).

  A combination of “crossing hairs” and “applying force to the application part where the hairdressing agent is applied in the form of a mist” gives a simpler and more beautiful feeling (a hairstyle with a mixture of weight and lightness). Can make). From the viewpoint of providing a simple and beautiful bundle feeling, it is more preferable to increase the number of intersections so that the hair cuticle is oriented in the forward direction. When the cuticles of the hair are crossed so that the directions are opposite to each other, a part of the hair ends toward the root of the hair. In this case, the hairs are crossed, but even if force is applied, the repulsive force of the hair directed in the opposite direction may hinder the creation of a cohesive hairstyle.

  The time when the hairs cross each other may be any time as long as it is between the stage before the hairdressing agent is applied to the hair in the form of a mist and the time when the force is applied to the hair of the applied part. Or at the same time. From the viewpoint of easy and easy to increase the number of intersections, it is more preferable to be at the same time as or before the time when the hairdressing agent is applied in the form of a mist.

Examples of the method for crossing hairs include the following methods.
1) Lift the hair bundle and lift it away from your hand in small amounts (eg, scatter)
2) Split the hair bundle vertically and horizontally 3) Applying force to the application part to which the mist-like hairdressing agent is applied (that is, applying force to the entire hair of the application part to be described later itself also crosses the hairs) )

(Skin on hair)
As shown in FIG. 2, before performing the above-mentioned “step of crossing hairs”, if it is attached to the hair, as shown in FIG. Since it becomes easy to increase an intersection, it is still more preferable. As an example of such kinking to hair, the following processing can be given.
・ Brush blow (applying hot air with a hand dryer while combing hair with a brush, raising the root, or applying a habit such as inner winding or outer winding)
・ Hand blow / finger blow (start up roots with hand dryer and hand comb, apply hair flow, apply wave)
・ Scrunch Blow (Grip your hair lightly, apply hot air to it with a hand dryer, and apply waves, curls, etc.)
・ Curl the hair with a curling iron (iron), set up the root, set the inner winding, outer winding (outside spring), curl, wave, etc. ・ Comb the hair with a comb and brush dryer, Launch, curl, wave, inner winding, outer winding (outside splash), etc. • (Hot) curlers, curl, wave, etc.

(Application of hair styling agent)
When applying the hair styling agent to the hair in the form of a mist, it is preferable to lift the hair and apply the hair styling agent from the inside of the lifted hair from the viewpoint that it can be applied evenly to the entire hair.

In the present invention, application of hair setting agent to hair is, 3~80mg / cm ² as dry residue styling agent to be applied to the hair, further 5-60 mg / cm ^2, and even in particular 7~50mg / cm ² It is preferable because it makes it easy to make hairstyles that are mixed in weight and lightness. Here, the dry residue of the hairdressing agent sprayed on the hair is obtained in advance by calculating the relationship between the amount of increase in the amount of spray when sprayed onto a glass plate and dried at 40 ° C for 60 minutes, and the spray amount. It shall be converted from the injection amount. The sprayed dry residue is all applied to the hair.

  The interval from applying the hairstyling agent with self-selective adhesive to the hair in the form of a mist until applying force to the hair of the applied part may be just after or after several hours have passed. Good. From the viewpoint of efficiently applying the hairstyling agent with self-selective adhesive properties to the hair in the form of a mist, the power is applied within 5 minutes, even within 1 minute, and even within 30 seconds after the application is completed. It is preferable to add.

(Apply force to the hair of the application part)
Any method may be used as a method of applying a force to the hair of the part to which the hairdressing agent is applied in a mist form. Specifically, it is a concept including performing the following operations using hands and tools.
・ Gripping, grasping, crunching, swallowing, grasping, twisting (twisting / twisting)
・ Twisting every twist of hair, twisting and gripping ・ Rounding ・ Rounding from the tip of the hair ・ Sliding while picking ・ Rubbing ・ Rubbing together ・ Stuck ・ Shifting the positions of adjacent hairs (for example, shifting in the length direction)
・ Pass the hand gusset.

  Among these, it is preferable to apply force over the entire portion where the hair styling agent is applied in the form of a mist from the viewpoint that even an unfamiliar person can efficiently make a hairstyle in which weight and lightness are mixed without failure. In this specification, the term “applying force over the whole” is a concept that excludes “intentionally applying force within a limited range” and “partially applying force”. It is a concept that excludes the concept of “pinch”. Moreover, it is a concept that does not require a force to be applied to a very limited range without intention if the whole is positively intended without limiting the range.

  In addition, from the viewpoint of making it possible to efficiently create hairstyles that are mixed in weight and lightness without failure even by unfamiliar people, the target for applying force at once is not a single piece of hair such as back hair, but a bundle of hair. It is preferable that In this specification, the term “bundle” is a concept that excludes 3 or less hairs, 5 or less hairs, and 7 or less hairs. In addition, it is a concept that indicates that the diameter is 3 mm or more, further 5 mm or more, and further 10 mm or more when grasped as a whole and can be grasped with one hand.

  By doing so, as shown in FIG. 4, the application positions of the polymer having self-selective adhesive are appropriately in contact with each other so that the hair is moderately bundled, and the polymer having self-selective adhesive is a part other than the polymer. The hairstyle remains moderately light because it hardly adheres even when touched. On the other hand, when hair styling is carried out in the same manner as in the present invention using a conventionally known mist-like hair styling agent (adhesive hair spray) having a strong adhesive force, the hair style has a strong feeling of cohesion and stickiness. (FIG. 5). In addition, when hair styling is performed in the same manner as the present invention using a conventionally known mist-like hair styling agent (fixing hair spray), the solidified hair styling particles are destroyed by applying external force such as gripping, The hairstyle will collapse (Fig. 6).

  In addition, after applying the hair styling agent to the hair as described above and applying the hair styling method to apply force to the entire hair of the application part, the hair styling agent is further applied to the hair surface in a mist form. In addition, it is possible to further improve the set holding power of the obtained hairstyle mixed with light weight.

Synthesis example 1
In a reaction vessel equipped with a stirrer, a fractionation condenser and a thermometer, a random copolymer of ethylene oxide and propylene oxide (number average molecular weight 5000, hydroxyl value 22.0 mg KOH / g, manufactured by ADEKA Corporation, trade name ADEKA polyether PR-5007) 27.1 g (0.005 mol), 1.15 g (0.005 mol) of diphenyl carbonate and 4 mg (0.01 mmol) of cesium carbonate were added.

While stirring in the reaction vessel, the temperature was raised to 160 ° C., and heating was continued for 2 hours as it was, and phenol produced by the reaction was discharged out of the system. Furthermore, vacuum suction was started using a vacuum pump, and the reaction was carried out for about 4 hours while gradually raising the temperature to 180 ° C. to obtain a polyether polycarbonate (hereinafter referred to as polyether polycarbonate 1). The polyether polycarbonate 1 had a weight average molecular weight of 180,000.
The other attachment strength was 106 gf, the self-adhesion strength was 233 gf, and the other attachment strength / self-adhesion strength was 0.45.

Examples 1-4, Comparative Examples 1-4
According to a conventional method, a hair spray stock solution and a propellant having the following compositions are filled in an aerosol container having the following valves and buttons in a ratio of propellant / stock solution = 50/50 (mass ratio). (Examples 1 to 4, Comparative Examples 2 and 3). Moreover, the hair wax of the following prescription was used as the comparative example 1.

(Hair styling method)
The wigs of Beaulux (model number: No. 775s) were aligned 10cm below the chin, and the hair tips were layer-cut, and then blown to wind the hair tips inside. After dividing the whole hair into 6 equal parts, each hair bundle was lifted up and separated by small amounts (at a rate of 3 seconds per bundle), and each hair styling agent was applied in a mist form from the inside. The amount applied to the entire hair was 0.15 g as a dry residue. After the application, the application position of the polymer applied to the hair was appropriately touched by applying force while crossing the hair by swallowing the entire hair by hand. Thereafter, 0.05 g of the same hair styling agent was applied as a dry residue to the entire hair surface.
We evaluated the ease of making hairstyles that mixed weight and lightness, and the lack of stickiness (sensory evaluation). In addition, the set retention strength after 6 hours in an environment of 25 ° C. and 90% Rh was evaluated, and after that, the hair was reshaped and the re-styling power was also evaluated.
In Comparative Example 1, 0.5 g of wax as a dry solid content was once spread with both hands to the same wig, and then applied to the hair evenly with both hands. As Comparative Example 4, the same hair spray as in Example 4 was used, and after application to the wig, hair was similarly adjusted except that the hair bundle was not gripped, and evaluation was performed in the same manner.
The results are shown in Table 1.

(Evaluation criteria)
◎: Good ○: Somewhat good △: Somewhat bad ×: Bad

Valve: Stem diameter φ0.4mm, housing diameter φ0.6mm x vapor tap diameter φ0.4mm
Button: Diameter 0.60mm (with mechanical breakup) (Mitani Valve)

Example 1
Stock solution (mass%)
Polycarbonate polyester (Polymer of Synthesis Example 1 of JP-A-2008-162945) 6
γ-Caprolactone 75
Total ethanol remaining 100
Propellant
DME

(Example 2)
Stock solution (mass%)
Polyether polyester (Polymer of Synthesis Example 17 of JP2009-062482) 7.5
Total ethanol remaining 100
Propellant
LPG (0.20MPa) / DME (30/70)

(Example 3)
Stock solution (mass%)
Polyether polycarbonate 1 of Synthesis Example 1 7.5
Total ethanol remaining 100
Propellant
LPG (0.20MPa) / DME (30/70)

(Example 4, comparative example 4)
Stock solution (mass%)
Polyether polycarbonate 1 of Synthesis Example 1 7.5
Plus size L-2700 (Keio Chemical Co., Ltd.) 0.6
Total ethanol remaining 100
Propellant
LPG (0.20MPa) / DME (30/70)

(Comparative Example 1) Wax
(mass%)
Cetanol 6.0
Polyoxyethylene (4) sodium lauryl ether phosphate 1.0
Polyoxyethylene sorbitan monostearate1.0
Lipophilic glyceryl monostearate 4.0
Isostearyl glyceryl ether 0.5
Liquid paraffin 5.0
Microcrystalline wax 3.0
Vaseline 1.0
Edetate disodium appropriate amount purified water remaining total 100

(Comparative Example 2) Adhesive mist hair straightener stock solution (mass%)
(Alkyl acrylate / diacetone acrylamide) copolymer AMP 7.5
Concentrated glycerin 0.1
Total ethanol remaining 100
Propellant
LPG (0.30MPa)

(Comparative Example 3) Adhesive mist-like hair styling agent (Patent Document 1; Example 8 of JP 2009-7347)
Stock solution (mass%)
Yuka Former M-75 (Mitsubishi Chemical Corp .; solid content) 2.85
Isostearyl glyceryl ether 6.65
Total ethanol remaining 100
Propellant
LPG (0.15MPa)

  In all of the examples, the ease of making a hairstyle mixed with weight and lightness was good. Although the comparative examples had high evaluations depending on the items, the evaluations of the ease of making the hairstyle were all low and did not meet the purpose of the present invention.

Formulation Example 1
According to a conventional method, a hair spray stock solution having the following formulation was prepared, and the same aerosol container as in Examples 1 to 4 was filled with DME as a propellant at a stock solution / propellant (mass ratio) = 50/50.
Stock solution (mass%)
Polyether polycarbonate 1 of Synthesis Example 1 6.9
Plus size L-2700 (Keio Chemical Co., Ltd.) 0.6
Purified water remaining

  The obtained hair spray was applied to the hair, the hair bundle was grasped, and the ease of making a hairstyle with a mixture of weight and lightness was evaluated. In addition, the set retention strength after 6 hours in an environment of 25 ° C. and 90% Rh was evaluated, and after that, the hair was reshaped and the re-styling power was also evaluated. As a result, all evaluations were high.

Formulation example 2
According to a conventional method, a hair cosmetic composition having the following formulation was prepared, sealed in a container, and used as a pump spray (using a Y-150 sprayer manufactured by Yoshino Kogyo).
(mass%)
Polyether polycarbonate 1 of Synthesis Example 1 3.5
Plus size L-2700 (Keio Chemical Co., Ltd.) 0.3
Purified water remaining

  The obtained pump spray was applied to hair, grasped the hair bundle, and evaluated the ease of making a hairstyle mixed with weight and lightness, and the lack of stickiness. In addition, the set retention strength after 6 hours in an environment of 25 ° C. and 90% Rh was evaluated, and after that, the hair was reshaped and the re-styling power was also evaluated. As a result, all evaluations were high.

Claims (11)

  A hair styling method in which a hair styling agent having self-selective adhesiveness is applied to the hair in the form of a mist, and then force is applied to the hair of the application portion.   The hair styling method according to claim 1, wherein the hairs are crossed at any time from the stage before the hair styling agent is applied to the hair in the form of a mist until the time when force is applied to the hair of the application portion.   The hair styling method according to claim 1, wherein when the hair styling agent is applied to the hair in the form of a mist, the hair is lifted and applied from the lifted inside.   The hair styling method according to any one of claims 1 to 3, wherein the hair styling agent is further applied to the surface of the hair in a mist after the hair styling agent is applied to the hair in a mist.   The hair styling method according to any one of claims 1 to 4, wherein the hair styling agent is an aerosol type.   The hair styling method according to any one of claims 1 to 4, wherein the hair styling agent is a non-aerosol type. The hair styling method according to any one of claims 1 to 6, wherein an amount of the hair styling agent applied to the hair is 3 to 80 mg / cm ² as a dry residue of the hair styling agent.   The hair styling method according to any one of claims 1 to 7, wherein a target to which force is applied to the hair is a bundle of hair obtained by applying a hair styling agent having self-selective adhesiveness to the hair in a mist form.   The hair styling method according to any one of claims 1 to 8, wherein a range in which the force is applied to the hair covers the entire application portion of the hair styling agent having self-selective adhesiveness.   The method of applying force to the hair of the application part of the hairdressing agent is to hold, hold, squeeze, squeeze, squeeze, twist (twist / twist), twist or twist each hair bundle using hands or tools. 2. It is by gripping, rounding, rounding from the tip of the hair, sliding while picking, rubbing, rubbing, rubbing, shifting the positions of adjacent hairs, passing through hand gusset, or passing hand gusset while gripping. The hair styling method according to any one of -9. 11. The hair styling method according to claim 1, wherein the hair styling agent having self-selective adhesiveness contains a polyether polycarbonate having a structural unit represented by the general formula (1).
[In the formula, A represents an alkylene group having 2 to 6 carbon atoms, n represents an average value of 5 to 1000, p represents an average value of 5 to 100, and (n × p) AO may be the same or different. ]