JP2012140350A - Hairdressing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hairdressing method enabling hairdressing to a floaty condition by increasing the volume of the hair.SOLUTION: The hairdressing method includes a process 1 of inclining the head from the vertical condition to make a condition where hair is separate from the scalp, and a process 2 of applying a mist hairdressing agent having self-selection adhesion.

Description

  The present invention relates to a hair styling method.

  One of the important items in hair styling in recent years is the desire to make the hair soft. Specifically, it is a desire to increase the bulk of the hair at the top of the head, the back of the head, and the pot. In response to this demand, hair styling supply companies are researching techniques for increasing the volume of hair and maintaining the increased volume, but at present, sufficient results have not been seen.

  In hair styling agents, it is common to increase the amount of set polymer and oil to increase the setting power and holding power of the hairstyle for the purpose of increasing the bulk of the hair. . 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 have the problem that after hair styling, once the hairstyle collapses, it cannot be restyled. On the other hand, in the case of a hairdressing agent that contains an oil agent, such as hair wax, it is possible to re-hair after the hairstyle has collapsed, but its set retention strength is extremely low compared to the set polymer, and the set retention Increasing the amount of oil to increase power can cause sticky 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, since each hair bundle is lifted up and applied by hand, the hair is not sufficiently deviated from the hair, and if it is not an expert, the agent will be attached locally, resulting in excessive bundling, resulting in unnaturalness. It becomes a nasty hairstyle.

  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. However, since this hair cosmetic does not have adhesiveness, once it breaks down, it cannot be restyled.

JP 2009-7347 JP 2010-1287

  The following is a review of the reasons why it is difficult to hold a hairstyle with increased bulk, which is difficult to maintain. In other words, the hair that normally grows from the scalp is not perpendicular to the scalp, but tilts in the direction of gravity and falls, so the hair and hair naturally overlap so that the long axis is aligned. It is less bulky by flowing and overlapping in the direction of gravity so as to snuggle up to the scalp, face, neck, shoulders, clavicle, and chest from above.

  Therefore, in order to increase the bulk of the hair by styling, it is necessary to shift the overlap and reposition the hair, and to maintain it, and it is necessary to have a hair styling agent and a hair styling method that can do this effectively. However, the present situation is that such hair styling agents and hair styling methods have not been developed yet.

  Therefore, an object of the present invention is to provide a hair styling method capable of styling hair in a soft and fluffy state.

  In the past, to make hairstyles with increased bulk, hair styling agents, including oils and set polymers, were applied to the head hair to reduce hair overlap by lifting and swallowing hair, in other words, trying to float hair However, in such a procedure, the hair did not float sufficiently, and the hair styling agent adhered between the hairs in an insufficient state, so that the hair could not be finished in a sufficiently soft state. In addition, as the set polymer and oil agent are increased in order to retain the hairstyle that has been made, adhesion between the hair and the finger also occurs strongly, and the adhesion between the hair and the finger prevents hairstyling. This is one of the causes that cannot be increased sufficiently.

  Furthermore, there is a problem in how to apply the hairdressing agent. In order to make a soft natural hairstyle that does not collapse easily, it is necessary to apply a hair styling agent evenly to the hair evenly. If the hair styling agent is applied not on the spot but on the surface / linearly, the hair will be bundled, not natural, and it will be difficult to fluff. Moreover, even if it can be applied in the form of spots, if it is mottled, the place without the fixative will naturally collapse, and only the part with the hairdressing agent will become soft and unnatural. Therefore, the skilled person lifts up the hair and applies it to the inside of the hair, so that the agent is applied evenly throughout the place where it is desired to fluff. However, it is difficult for those who are not used to it, and it is often biased.

  Based on the above considerations, in order to achieve the purpose of increasing the bulk of the hair, it is possible to realize a state in which the hair is sufficiently floated, and when the hair is touched to adjust the hair, the hairs strongly adhere to each other. It came to the conclusion that it is necessary to solve these two problems by using a hair styling agent that does not adhere to the finger.

  The present inventors use a hair styling agent having self-selective adhesiveness as a hair styling agent that tilts the head as a method of sufficiently shifting the position of the hair and does not bond the hair and fingers while strongly bonding the hairs together. It has been found that by combining both of the above, hair styling that increases the bulk of the hair becomes possible.

The present invention provides a hair styling method including the following step 1 and step 2.
Step 1: Step of tilting the head from an upright state so that the hair is separated from the scalp Step 2: Step of applying a mist-like hair conditioner having self-selective adhesiveness to the hair

  According to the hair styling method of the present invention, the hair volume can be increased and the hair can be conditioned in a soft state.

[Hairdressing procedure]
If the hair is not extremely short (more than 5 cm), it goes to the direction of gravity with its own weight as it goes in the hair tip direction. As a result, the hair is folded as it goes in the direction of the tip, and the space between the hair and the hair becomes scarce. Therefore, when the head is tilted, the tilted hair is separated from the scalp. This eliminates the overlap between the hairs and increases the space between the hairs. Further, when the hair is entangled by inserting a hand or a comb or shaking the head, the overlap between the hairs is further eliminated, and the space between the hairs is increased. If you apply a mist styling agent so that it blows from the tip of the hair toward the gap of the hair, it will reach the base of the hair, the tip of the hair, and the inside to the outside of the hair. There is no natural fluffy bulk. After that, arrange with your hands, brushes, combs, etc. to the desired shape. Further, by using a self-selective adhesive polymer as the agent to be applied, it is strong against external force, and even if it collapses, it can be re-haired and has no stickiness.

<Preparation of hair for hair styling>
It is preferable that the hair for styling is in the following state before performing all the steps.
1) It is preferable that hairdressing agents other than the mist-like hairdressing agent to be applied do not adhere. In this case, the treatment agent that is not washed away is not included in the hair styling agent.
2) The hair to be applied is dry from the viewpoint of fixing the mist 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 washing or the like is completely evaporated with a dryer in addition to wiping with a towel.

<Hair shaping>
It is more preferable to shape the hair before performing the “step of tilting the head” in step 1 for the purpose of increasing the bulk of the hair. Examples of such hair shaping include the following processes.

・ 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.

<Step 1: Inclining the head from an upright state to bring the hair away from the scalp>
The angle at which the head is inclined is based on the direction of the line segment from the neck to the top of the head in the upright state, and the angle of the line segment from the neck to the top of the head in the inclined state is preferably 90 degrees or more. This operation is advantageous in increasing the bulk of the hair as compared to the state of the hair when standing upright, because the hair is separated from the scalp and face and the position of the hair is lifted.

  The angle at which the head is tilted should be 90 degrees or more and 180 degrees or less from the viewpoint of making the hair suitable for creating a style that raises the hair sufficiently and increases the bulk, and that hair can be comfortably shaped without causing dizziness. Preferably, 110 degrees or more and 180 degrees or less are more preferable, and 120 degrees or more and 170 degrees or less are particularly preferable.

  The direction in which the head is inclined may be any of the front, the side, and the rear as long as the direction in which the face is facing is the front. The above angle is described based on the upright state, but the actual movement is not necessarily limited to the standing state, standing, sitting on the chair, sitting on the floor You can stand on your back or on your knees.

  There is no particular restriction on the speed at which the head can be tilted, but the time it takes to tilt the head from the standpoint that the hair can be dissipated to some extent and the hair can be comfortably set without causing dizziness. Is preferably 0.3 seconds to 3 seconds, more preferably 0.5 seconds to 2 seconds, and particularly preferably 0.6 seconds to 1.5 seconds. The operation of tilting the head may be an operation of gently bowing from an upright state, or an operation of swinging down the head with momentum.

  The number of times of tilting the head is not particularly limited, but is preferably 3 times or less, more preferably 2 times or less, and particularly preferably 1 time, from the viewpoint of enabling a comfortable hair styling action. In the case of a plurality of times, it may be repeated continuously, or may be performed with application of a hair styling agent described later.

  Immediately after the operation of tilting the head, the head may be shaken in the tilted state. The direction of shaking may be a direction in which the chin and throat are moved closer or away, or a direction in which the face is swung to the left or right about the neck, or a mixture of these may be present, The direction of shaking is particularly preferable.

  The head can be tilted by tilting the head with no hands or tools as described above, or by combing the hair with a comb, hand, brush, etc. You may comb your hair. Among these, it is particularly preferable to dissipate hair by shaking it with your hands after tilting your head.

<Step 2: Application of mist-like hairdressing agent>
This step may be performed after step 1 or before step 1. When step 2 is performed after step 1, the application of the mist-like hair styling agent in step 2 may be performed with the head tilted, or may be performed after the tilted head is returned to the upright state. In the case of performing Step 1 after Step 2, the application of the mist-like hair styling agent in Step 2 may be performed with the head in an upright state, and after performing Step 1, the head may be returned to the upright state. When applying the mist-like hair conditioner to the hair before or after tilting the head in Step 1, applying the hair conditioner to the inside of the hair by lifting the hair with a hand or brush is applied to the entire hair. From the viewpoint of being able to.

  When applying the mist-like hairdressing agent to the hair with the head tilted, it is preferable to spray the agent so that the agent is blown into the gap between the hairs formed by tilting the head. It is not limited. Alternatively, the mist-like hairdressing agent may be sprayed with the head tilted, the mist-like hairdressing agent may be sprayed again after returning the head to an upright state. When spraying again, it is preferable to spray from the outside of the hair rather than lifting the hair from the viewpoint of preventing the bulk of the hair made by tilting the head from being broken.

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 preferable. 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.

<Hair styling after application of mist-like hair styling agent>
Although the hair-styling method after applying a hair-styling agent to a mist form is not specifically limited, For example, it includes performing the following operations.
・ 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.

<Milling hair conditioner>
The mist-like hair styling agent used in the present invention may be anything 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 Nobren NH-8) with an indenter area of 8 mm 2 was attached to the tip of the probe, and the adhesion 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 to measure the adhesive force, and the obtained value was defined as “self-adhesive strength”.

(Polyether polycarbonate)
The mist-like hairdressing agent used in the present invention can contain any polymer capable of imparting self-selective adhesiveness to the hairdressing agent, for example, the structural unit represented by the general formula (1) It is preferable to contain the polyether polycarbonate which has.

[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 million or less, more preferably 700,000 or less, and further 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. From this, in the mist-like hair styling agent used in the present invention, it is only necessary that the hair styling agent be particles in the mist-like range generally used in the field of hair cosmetics when sprayed in the mist form. There is no need to adjust the particle size.

  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 adhesiveness to the mist-like 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) has a good set retention. In view of the above, 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 mist-like hairdressing 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 Methyl 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-mentioned components, a cosmetic oil agent can be added to the mist hair preparation used in the present invention within a limit (0.1 to 10% by mass) that does not impair 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.

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 the 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 1-9, Comparative Examples 1-8
According to a conventional method, a hair spray stock solution and a propellant of each composition shown below are filled in an aerosol container equipped with the following valves and buttons at a propellant / stock solution = 50/50 (mass ratio). 4 and comparative hair styling agents 2-3 were produced.
Valve: Stem diameter φ0.4mm, housing diameter φ0.6mm x vapor tap diameter φ0.4mm
Button: Diameter 0.60mm (with mechanical breakup) (Mitani Valve)
Moreover, the hair wax of the below-mentioned prescription was used as the comparative hairdressing agent 1.

Hair conditioner 1 (hair spray)
Stock solution (mass%)
Polycarbonate polyester (Polymer of Synthesis Example 1 of JP-A-2008-162945) 6
γ-Caprolactone 7.5
Total ethanol remaining 100
Propellant Dimethyl ether (DME)

Hairdressing agent 2 (hair spray)
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)

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

Hair conditioner 4 (hair spray)
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 hair straightener 1 (hair 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 hair styling agent 2 (non-adhesive hair spray)
Stock solution (mass%)
(Alkyl acrylate / diacetone acrylamide) copolymer AMP 7.5
Concentrated glycerin 0.1
Total ethanol remaining 100
Propellant
LPG (0.30MPa)

Comparative hair styling example 3 (hair spray with adhesive properties (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)

(Hair styling method)
Hair styling was performed by a combination of hair styling agents and procedures shown in Tables 1 and 2.
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. 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.

Ease of making a soft hairstyle, no stickiness, set holding power and re-styling power were evaluated according to the following evaluation criteria. The results are shown in Tables 3 and 4.
(Evaluation criteria)
◎: Good ○: Somewhat good △: Somewhat bad ×: Bad

Formulation Example 1
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 (
Use Y-150 sprayer from 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 Tilt 110 degrees forward at the speed of bowing, apply the above hair cosmetics here, and after putting the wig back, make hair by hand to make a soft hairstyle It was. As a result, the ease of making a soft style was ◎, the stickiness was ◎, the set holding power was ◯, and the re-styling power was ◎.

Claims (8)

A hair styling method including the following step 1 and step 2.
Step 1: Step of tilting the head from an upright state so that the hair is separated from the scalp Step 2: Step of applying a mist-like hair conditioner having self-selective adhesiveness to the hair   The hair styling method according to claim 1, wherein the head is returned to an upright state after step 1 is performed first, and then step 2 is performed.   The hair styling method according to claim 1, wherein step 1 is performed first, and step 2 is performed with the head tilted.   The hair styling method according to claim 1, wherein step 2 is performed with the head in an upright state, step 1 is subsequently performed, and then the head is returned to an upright state.   The hair styling method according to any one of claims 1 to 4, wherein the mist-like hair styling agent is an aerosol type.   The hair styling method according to any one of claims 1 to 4, wherein the mist-like hair styling agent is a non-aerosol type. The hair styling method according to any one of claims 1 to 6, wherein an application amount of the mist-like hair styling agent to the hair is 3 to 80 mg / cm ² as a dry residue of the mist-like hair styling agent. The hair styling method according to any one of claims 1 to 8, 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) AOs may be the same or different. ]