JP2013514270A - Method for treating keratin fibers - Google Patents

Abstract

(式中、
Xは、O^-、OH、NH₂、O-OH及びO-COO^-からなる群から選択される基である)
の炭酸イオン源も含有しない、方法に関する。本発明は、更に、前述の方法に使用するための組成物自体及びキットに関する。The present invention is a method for treating keratin fibers comprising:
Applying a composition comprising at least one polyol on keratin fibers;
Then placing the keratin fibers in an enclosed space;
And then heating the keratin fibers.
The composition may also be a reducing agent of the formula:

(Where
X is a group selected from the group consisting of O ⁻ , OH, NH ₂ , O—OH and O—COO ⁻ ).
It also relates to a process that does not contain any source of carbonate ions. The invention further relates to the compositions themselves and kits for use in the methods described above.

Description

  The present invention relates to a method for treating keratin fibers (hair, etc.), and a composition and kit used in the method.

  Because there is a lot of physical stress (UV, shampoo, brushing, etc.) and chemical stress (coloring, perm, relaxing, contamination, etc.) that keratin fibers (hair etc.) have to undergo daily Research into the effective repair of damaged keratin fibers has become important in the cosmetic treatment of keratin fibers.

  The repair of damaged keratin fibers is only valuable if you get a realistic sense that you have returned to the original keratin fibers. Furthermore, such a repair process should be effective against various stresses as described above.

  Previously proposed techniques (compositions and / or methods) for the repair of damaged keratin fibers are often temporary and the original state of the keratin fibers. Speaking of not achieving the correct recovery, it is still inadequate.

  Polyols are known for their cosmetic properties on keratin fibers. Polyols are commonly used in hair care products. For example, see US-A-2005-196318.

US-A-2005-196318

  However, the cosmetic properties of polyols with respect to keratin fibers are still inadequate because of their low deposition rate on keratin fibers or limited penetration into keratin fibers. This means that the efficiency of cosmetic treatment of keratin fibers using polyol is low and a large amount of polyol is required in the preparation used for cosmetic treatment.

  Accordingly, the object of the present invention is to provide a good cosmetic effect, in particular an excellent repair or recovery effect, on keratin fibers and a relatively small amount of polyol which can be sustained against various stresses for a long time. It is to provide a new method for treating keratin fibers (hair etc.) used.

The aforementioned object of the present invention is a method of treating keratin fibers, comprising:
Applying a composition comprising at least one polyol on the keratin fibers;
Then placing the keratin fibers in an enclosed space;
And then heating the keratin fibers.
The composition may also be a reducing agent of the formula:

(Where
X is a group selected from the group consisting of O ⁻ , OH, NH ₂ , O—OH and O—COO ⁻ ).
This can also be achieved by a process that does not contain any source of carbonate ions.

  The aforementioned method may further comprise rinsing the keratin fibers after applying the composition onto the keratin fibers and / or after heating the keratin fibers.

  Mechanical tension may be applied to the keratin fibers. Mechanical tension may be provided by using at least one reshaping means selected from the group consisting of curlers, rollers, plates and irons.

  The enclosed space may be formed by at least one coating means. The coating means may be hard or soft. The coating means may include at least one member selected from the group consisting of a film and a sheet.

  In the foregoing method, during the step of heating the keratin fibers, the keratin fibers may be heated at 45 ° C to 250 ° C. The keratin fibers may be heated by at least one heater that supplies at least one selected from the group consisting of hot air, hot steam, high frequency induction heating, microwave heating, infrared irradiation, laser and flash lamp irradiation. The coating means and / or the reshaping means may comprise the heater.

The polyol may be a _C2-12 polyol containing at least two hydroxy groups.

  The polyol may be a natural or synthetic polyol.

  The polyol can be selected from glycerin and its derivatives, and glycol and its derivatives.

  The polyol is composed of glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, butylene glycol, pentylene glycol, hexylene glycol, 1,3-propanediol, and 1,5-pentanediol. You can choose from a group.

The polyol has the following formula (I):
Z- {O (AO) _l (EO) _m- (BO) _n H} _a (I)
(Where
Z means a residue obtained by removing a hydroxyl group from a compound having 3 to 9 hydroxyl groups;
AO means an oxyalkylene group having 3 to 4 carbon atoms,
EO means oxyethylene group,
BO means an oxyalkylene group having 4 carbon atoms,
a means 3 to 9,
l, m, and n mean the average added moles of AO, EO, and BO, respectively, and 1 ≦ l ≦ 50, 1 ≦ m ≦ 50, and 0.5 ≦ n ≦ 5,
The weight ratio of AO to EO (AO / EO) ranges from 1/5 to 5/1,
(AO and EO may be added randomly or in block form)
May be an alkylene oxide derivative represented by:

  The composition may comprise the polyol in an amount of 0.001% to 90% by weight, based on the total weight of the composition. The pH of the composition can range from 6 to 11.

Another aspect of the present invention is a composition for treating keratin fibers heated in an enclosed space, comprising at least one polyol,
The reducing agent is also of the formula:

(Where
X is a group selected from the group consisting of O ⁻ , OH, NH ₂ , O—OH and O—COO ⁻ ).
This composition does not contain any carbonate ion source.

The present invention further provides a kit for treating keratin fibers,
An apparatus comprising at least one coating means for forming an enclosed space, and at least one heater for heating the keratin fibers in the enclosed space;
At least one polyol,
The reducing agent is also of the formula:

(Where
X is a group selected from the group consisting of O ⁻ , OH, NH ₂ , O—OH and O—COO ⁻ ).
And a composition containing no source of carbonate ions.

  As a result of intensive studies, the present inventors have found that, by using a composition containing a polyol together with a specific heating method for keratin fibers, etc., a good cosmetic effect, particularly effective for various stresses over a long period of time. It has been discovered that it is possible to provide an excellent repairing or restoring effect that can be applied to keratin fibers such as hair using polyols.

  The particular heating method described above is performed in a closed or closed environment that limits the evaporation of water or moisture from the keratin fibers and maintains the keratin fibers at high temperatures, preferably in a moist state. Thereby, the keratin fibers can be heated evenly and the polyol can easily penetrate into or be deposited on the keratin fibers, so that even after some stress such as shampoo, the polyol is keratin It can remain for a long time in or on the fiber.

  Since polyols can easily stay on or in keratin fibers, the process according to the present invention is relatively small compared to conventional methods where polyols are difficult to stay on or in keratin fibers. Even if a polyol is used, a good cosmetic effect can be exhibited.

  The composition used in the present invention must not contain a reducing agent such as a thiol compound. Therefore, malodor derived from the reducing agent can be prevented. Furthermore, the composition used in the present invention should not contain any carbonate ion source as defined above. Thus, cosmetic treatment is more effective because there is no possibility of producing carbon dioxide that forms bubbles that can inhibit the deposition or penetration of polyols on or into the keratin fibers.

(Composition)
The composition used in the present invention comprises at least one polyol.

  The term “polyol” in this case means an alcohol having two or more hydroxy groups and does not include sugars or derivatives thereof. A sugar derivative is a sugar alcohol obtained by reducing one or more carbonyl groups of a sugar, as well as one or more hydrogen atoms in one or more hydroxy groups of which an alkyl group, a hydroxyalkyl group , Sugars or sugar alcohols substituted with at least one substituent such as an alkoxy group, an acyl group or a carbonyl group.

The polyol may be a C _2-12 polyol, preferably a C _2-9 polyol, comprising at least 2 hydroxy groups, and preferably 2 to 5 hydroxy groups.

  The polyol may be a natural or synthetic polyol. The polyol may have a linear, branched or cyclic molecular structure.

  The polyol may be selected from glycerin and its derivatives, and glycol and its derivatives. The polyol is composed of glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, butylene glycol, pentylene glycol, hexylene glycol, 1,3-propanediol, and 1,5-pentanediol. You can choose from a group.

The polyol has the following formula (I):
Z- {O (AO) _l (EO) _m- (BO) _n H} _a (I)
(Where
Z means a residue obtained by removing a hydroxyl group from a compound having 3 to 9 hydroxyl groups;
AO means an oxyalkylene group having 3 to 4 carbon atoms,
EO means oxyethylene group,
BO means an oxyalkylene group having 4 carbon atoms,
a means 3 to 9,
l, m, and n mean the average added moles of AO, EO, and BO, respectively, and 1 ≦ l ≦ 50, 1 ≦ m ≦ 50, and 0.5 ≦ n ≦ 5,
The weight ratio of AO to EO (AO / EO) ranges from 1/5 to 5/1,
(AO and EO may be added randomly or in block form)
It may have an alkylene oxide derivative represented by:

  The aforementioned alkylene oxide derivatives may be a single type or a mixture of multiple types thereof.

  In the alkylene oxide derivative represented by the formula (I), Z means a residue obtained by removing a hydroxyl group from a compound having 3 to 9 hydroxyl groups, and a is a hydroxyl group of the compound Means the number of 3 to 9. Examples of compounds having 3 to 9 hydroxyl groups, for example, when a = 3, glycerin and trimethylolpropane; when a = 4, erythritol, pentaerythritol, sorbitol, alkylglycoside, and diglycerin; xylitol for a = 5; dipentaerythritol, sorbitol, and inositol for a = 6; sucrose and trehalose for a = 8; maltitol for a = 9; mixtures thereof, etc. Can do. Preferably, Z means a residue obtained by removing a hydroxyl group from a compound having 3 to 6 hydroxyl groups, and satisfies 3 ≦ a ≦ 6. As the compound having 3 to 9 hydroxyl groups, glycerin or trimethylolpropane is preferable, and glycerin is particularly preferable. In the case of a ≦ 2, poor compatibility with oil components such as fat and oil is shown, and blending stability in an oil-based preparation tends to be impaired. When 10 ≦ a, tackiness occurs.

  AO means an oxyalkylene group having 3 to 4 carbon atoms. Examples thereof include oxypropylene group, oxybutylene group (oxy-n-butylene group, oxyisobutylene group, or oxy-t-butylene group), oxytrimethylene group, oxytetramethylene group, and the like. An oxypropylene group and an oxybutylene group are preferable, and an oxypropylene group is more preferable.

  l means the average added mole number of AO and satisfies 1 ≦ l ≦ 50, preferably 2 ≦ l ≦ 20. m means the average added mole number of EO, and satisfies 1 ≦ m ≦ 50, preferably 2 ≦ m ≦ 20. If l is 0, stickiness occurs. On the other hand, if l exceeds 50, the moisturizing effect decreases. In addition, if m is 0, the moisturizing effect is reduced. On the other hand, if m exceeds 50, tackiness will occur.

  The weight ratio of AO to EO (AO / EO) is in the range of 1/5 to 5/1, preferably in the range of 1/4 to 4/1. If AO / EO is less than 1/5, stickiness will occur. On the other hand, if AO / EO exceeds 5/1, the moisturizing feeling decreases. The order of addition of AO and EO is not specified. AO and EO can be added randomly or in the form of blocks. In order to obtain an excellent effect of preventing skin roughness, AO and EO are preferably added randomly.

  BO means an oxyalkylene group having 4 carbon atoms. Examples thereof include oxybutylene group (oxy-n-butylene group, oxy-isobutylene group, or oxy-t-butylene group), oxytetramethylene group, and the like. An oxybutylene group is preferred.

n means the average added mole number of BO and satisfies 0.5 <n ≦ 5, preferably 0.8 ≦ n ≦ 3, more preferably 1 ≦ n ≦ 3. If n is less than 0.5, tackiness will occur. On the other hand, if n exceeds 5, the moisturizing effect decreases. In formula (I), it is necessary that (BO) _n be bonded to a terminal hydrogen atom.

  The alkylene oxide derivatives represented by the formula (I) can be produced by known methods. For example, an alkylene oxide derivative represented by the formula (I) includes addition polymerization of ethylene oxide and an alkylene oxide having 3 to 4 carbon atoms to a compound having 3 to 9 hydroxyl groups, and 4 Can be obtained by subsequent reaction with an alkylene oxide having 5 carbon atoms. When addition polymerization of ethylene oxide and an alkylene oxide having 3 to 4 carbon atoms to a compound having 3 to 9 hydroxyl groups, the ethylene oxide and alkylene oxide can be polymerized randomly or in block form. .

Among the alkylene oxide derivatives represented by the formula (I), preferred examples of the aforementioned alkylene oxide derivatives include, for example, the following formula (II):
Gly- [O (PO) _s (EO) _t- (BO) _u H] ₃ (II)
(Where
Gly means the residue obtained by removing the hydroxyl group from glycerin;
PO means oxypropylene group,
EO means oxyethylene group,
s and t mean the average added moles of PO and EO, respectively, and have values in the range of 1 to 50;
The weight ratio of PO to EO (PO / EO) ranges from 1/5 to 5/1,
BO means an oxyalkylene group having 4 carbon atoms,
(u represents the average number of moles of BO added and ranges from 0.5 to 5)
The alkylene oxide derivative represented by (Polyoxybutylene polyoxyethylene polyoxyopylene glycerol) is included.

  The aforementioned alkylene oxide derivatives represented by formula (II) add propylene oxide and ethylene oxide to glycerol in a ratio of 3 to 150 molar equivalents of propylene oxide and ethylene oxide, respectively, to glycerol, and subsequently to glycerol. It can be obtained by adding alkylene oxides having 4 carbon atoms in a ratio of 1.5 to 15 molar equivalents.

  When the aforementioned alkylene oxide is added to glycerin, the addition reaction is performed using an alkali catalyst, a phase transfer catalyst, a Lewis acid catalyst, or the like. In general, an alkali catalyst such as potassium hydroxide is preferably used.

  Of the alkylene oxide derivatives represented by formula (I), the more preferred derivatives are the addition of 6 mol to 10 mol of ethylene oxide and 3 mol to 7 mol of propylene oxide to glycerin, followed by the addition of 2 mol to 4 mol of butylene oxide. It is obtained by doing.

  Of the alkylene oxide derivatives represented by formula (I), an even more preferred derivative is polyoxybutylene polyoxyethylene polyoxyopylene glycerol, which adds 8 mol ethylene oxide and 5 mol propylene oxide to glycerin. , And subsequently by adding 3 mol of butylene oxide and having an INCI name of PEG / PPG / polybutylene glycol-8 / 5/3 glycerol. PEG / PPG / polybutylene glycol-8 / 5/3 glycerol is commercially available from NOF Corporation under the trade name WILBRIDE S-753.

  The polyol may be present in an amount ranging from 0.001% to 90% by weight, preferably from 0.005% to 20% by weight, such as from 0.1% to 20% by weight, based on the total weight of the composition.

  The composition used in the present invention may also be a reducing agent having the formula:

(Where
X is a group selected from the group consisting of O ⁻ , OH, NH ₂ , O—OH and O—COO ⁻ ).
It does not contain any carbonate ion source.

  The pH of the composition may be in the range of 6 to 11, preferably between 6.0 and 9.0, more preferably between 6.0 and 8.0. Since the pH of the composition is neither relatively high nor low, damage to the keratin fibers by the composition can be reduced.

  In order to adjust the pH, acid or alkalinizing agents other than the ion source of the present invention may be used alone or in combination. The amount of acidifying or alkalizing agent is not limited, but may be 0.1% to 5% by weight relative to the total weight of the composition. Examples of the acidifying agent include any inorganic acid or organic acid generally used in cosmetics [citric acid, lactic acid, phosphoric acid, hydrochloric acid (HCl) and the like]. HCl is preferred. Alkalizing agents can include any inorganic or organic basifying agent commonly used in cosmetics, such as: ammonia; alkanolamine (monoethanolamine, diethanolamine and triethanol) Amine, isopropanolamine, etc.); sodium hydroxide and potassium hydroxide; urea, guanidine and its derivatives; basic amino acids (such as lysine or arginine); and the following structures:

(Wherein, R represents an alkylene such as propylene which is optionally substituted by hydroxyl or C ₁ -C ₄ alkyl _{group, R 1, R 2, R} 3 and R ₄ are independently hydrogen atom, an alkyl the diamine (1,3-propanediamine and its derivatives such as those described in a group or a C ₁ -C ₄ hydroxyalkyl group) can be exemplified as an example). Arginine and monoethanolamine are preferred.

  The composition used in the present invention may also contain one or more additional cosmetic agents. The amount of additional cosmetic additives is not limited, but may be from 0.1% to 10% by weight relative to the total weight of the composition. Cosmetic additives may be selected from the group consisting of: volatile or non-volatile, linear or cyclic, amine-type or not, silicone, cationic, anionic, nonionic Or amphoteric polymers, peptides and derivatives thereof, protein hydrolysates, synthetic or natural waxes, and in particular fatty alcohols, swelling agents and penetrants, and other active compounds such as: anionic, cationic, non-ionic Ionic, amphoteric or zwitterionic surfactants, hair loss inhibitors, antidandruff agents, associative or otherwise natural or synthetic thickeners, suspending agents, sequestering agents, opacifying agents ( opacifying agents), pigments, sunscreens, fillers, vitamins or provitamins, minerals, vegetable or synthetic oils, and flavorings, preservatives, stabilizers, and mixtures thereof.

  The vehicle for the composition used in the present invention is preferably an aqueous medium consisting of water and may advantageously contain one or several cosmetically acceptable organic solvents, Such organic solvents include, among others, alcohols (such as ethyl alcohol, isopropyl alcohol, benzyl alcohol and phenylethyl alcohol), or polyol ethers (such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether and ethylene glycol monobutyl ether). ), Propylene glycol ether (such as propylene glycol monomethyl ether), butylene glycol, and diethylene glycol alkyl ether (diethylene glycol monoethyl ether or diethylene glycol monobutyl ether). Etc.). Water may be present at a concentration of 10% to 90% by weight relative to the total weight of the composition. Thus, the organic solvent may be present at a concentration of 0.1% to 20% by weight, preferably 1% to 10% by weight, relative to the total weight of the composition.

  The composition used in the present invention may be present in any form such as lotion, thick or otherwise gel, or cream.

(Keratin fiber processing method)
The method for treating keratin fibers according to the present invention comprises:
Applying a composition comprising at least one polyol on keratin fibers, as described above;
Then placing the keratin fibers in an enclosed space;
The keratin fibers can then be heated.

  According to the present invention relating to a method for treating keratin fibers, keratin fibers (hair etc.) are subjected to a specific heating method carried out in an enclosed space.

  The heating method can be performed by any heating means that can be freely controlled to achieve the desired temperature for the method.

  The heating method preferably forms an enclosed space to limit evaporation of volatile components (such as water) from the keratin fibers in the aforementioned composition, and maintains a predetermined temperature in the heating device throughout the method It may be implemented by using a special heating device that can.

  If evaporable components (such as water) in the aforementioned composition evaporate from the keratin fibers, it is believed that most of the thermal energy added to the keratin fibers will be consumed by evaporation, and therefore the temperature of the keratin fibers is The temperature cannot be increased to a predetermined temperature until all evaporable components in the composition are evaporated.

  Said heating device may comprise any thermal energy source in contact with or away from the keratin fibers and at least one means for forming an enclosed space surrounding the keratin fibers. Good.

  A thermal energy source is used to heat the keratin fibers. The thermal energy source may be at least one heater that supplies at least one selected from the group consisting of hot air, hot steam, high frequency induction heating, microwave heating, infrared irradiation, laser, and flash lamp irradiation.

  The enclosed space may be formed by at least one coating means. Multiple coating means may be used. The coating means may be hard or soft.

  The coating means may include at least one member selected from the group consisting of a film and a sheet. The material of the film or sheet is not limited. For example, the film or sheet may include a thermoplastic or thermosetting resin, paper, a textile material, a bonnet, a metal foil (such as an aluminum foil).

  For example, the film or sheet may be set on a heating rod, a heating bar or a heating plate covered with keratin fibers.

  According to the invention, the coating means may comprise a thermal energy source. Thus, for example, a film or sheet containing a heater may be set on a rod, bar or plate covered with keratin fibers.

  The occluded state can limit the evaporation of evaporable components (such as water) in the aforementioned composition applied to the keratin fibers, and thus the temperature of the keratin fibers is a conventional method or apparatus for heating keratin fibers in the open state. The temperature can be raised higher than the temperature that can be obtained. Furthermore, keratin fibers can be effectively heated, and keratin fibers can be heated evenly.

  According to a variant of the invention, the enclosed space may comprise openings, whose surface area is less than 5%, preferably less than 3%, more particularly less than 0.5% of the total surface area of the coating means. According to this variant, the total surface area of the coating means comprises the surface area of the opening means (if present) for the coating means.

  The opening may be a passage, a hole or a hole, so that the air between the enclosed space and its exterior, especially when the reaction (e.g. forming a vapor inside the enclosed space) is too great. It is thought that exchange will be possible. Conversely, a person skilled in the art can form the opening so that the diffusion of heat in the enclosed space is not hindered.

  The keratin fibers can be heated at 45 ° C to 250 ° C, preferably 60 ° C to 200 ° C, more preferably 60 ° C to 150 ° C, more preferably 60 ° C to 90 ° C during the step of heating the keratin fibers.

  The heating method may be carried out for an appropriate time required to treat the keratin fibers. The length of time for the heating method is not limited, but may be 1 minute to 2 hours, preferably 1 minute to 1 hour, more preferably 1 minute to 30 minutes. For example, the time for heating may be 5 to 20 minutes, preferably 10 to 15 minutes.

  The keratin fibers may be rinsed after applying the composition onto the keratin fibers and / or after heating the keratin fibers.

[Permanent Deformation Method of Keratin Fiber]
According to the present invention relating to a method for treating keratin fibers, the keratin fibers may be subjected to mechanical tension typically used for permanent deformation.

  The permanent deformation method for keratin fibers may be performed as follows when mechanical tension is applied to the keratin fibers.

  First, mechanical tension is applied to the keratin fiber for deformation. Mechanical tension can be applied to the keratin fibers by any means for transforming the keratin fibers into the intended shape. For example, the mechanical tension may be provided by at least one reshaping means selected from the group consisting of curlers, rollers, clips, plates and irons. The reshaping means may include at least one heater as described above. When keratin fibers are wound around the curlers, this winding may be performed for the entire length of the keratin fibers or, for example, for half the length of the keratin fibers. For example, depending on the desired hairstyle shape and the amount of curl, winding may be performed in a somewhat thick bundle.

  Next, the aforementioned composition is applied to keratin fibers. You may apply this composition by arbitrary means, such as a brush and a comb. Keratin fibers that have been subjected to mechanical tension should be treated with the composition. It is considered that the keratin fiber can be left as it is for a certain length of time if necessary.

  Finally, the above heating method is performed. Thermal energy is applied to the keratin fibers under occlusive conditions, as described above.

  This method for permanent deformation of keratin fibers can be performed without any step of oxidizing the keratin fibers. Thus, the time required for the method according to the invention can be shorter than the time required for a conventional method requiring an oxidation step. Furthermore, damage to the keratin fibers due to the oxidation step can be avoided.

  The keratin fibers may be rinsed after applying the composition onto the keratin fibers and / or after heating the keratin fibers.

One embodiment of the hair treatment method according to the invention is a method for reshaping or permanently deforming keratin fibers, especially hair, comprising:
a) placing the keratin fibers under mechanical tension by winding on at least one reshaping means or mechanically tensioning means to form a curl;
b) applying the aforementioned composition to the keratin fibers;
c) an optional step of rinsing the keratin fibers,
d) placing at least one coating means on the reshaping means or mechanical tensioning means (or vice versa) to form one or more enclosed spaces; and
e) A method comprising heating the keratin fibers at a temperature between 45 ± 2 or 3 ° C. and 250 ± 2 or 3 ° C. for 1 minute to 2 hours.

  In this method, the temperature can be set, adjusted and adjusted by using one or more heating means, Digital Surface Sensor Module set on keratin fibers, reference number MT-144 [by Sakaguchi Electric Heat (Japan) It may be measured using a temperature measurement probe such as “sold on the market”. Usually, the probe is set on a single keratin fiber. However, the probe is set on the part of the keratin fiber that is in direct contact with the occluded space, and more preferably, the probe is in direct contact with the occluded space to form the keratin fiber curl end (when using curlers). ) It is advantageous to set on a part of the keratin fiber.

  Preferably, the temperature is measured at an atmospheric pressure of 101325 Pa.

  According to the present invention, the temperature of the keratin fibers may be constant (variation ± 2 or 3 ° C.) over the head of the individual (when the keratin fibers are hair) and the probe may be of any kind of keratin It may be set on the fiber.

  When the keratin fibers are hair, according to the present invention, a constant temperature (variation ± 2 or 3 ° C.) can be obtained for any type of hair, and the temperature of the hair can be adjusted to a specific temperature. During heating, it can be controlled to be constant ± 2 or 3 ° C. Thus, the hairstyle becomes uniform and homogeneous throughout the hair, and a better hairstyle can finally be obtained.

  Advantageously, the coating means may comprise one or more insulations, and more advantageously, the coating means may consist of such materials.

  The term “insulation” means any material having a thermal conductivity of 0 to 1 W / m ° C. (PVC: 0.17 W / m ° C.).

  Preferably, the heating means may be adjusted so that the temperature measured on the keratin fibers is 50 ° C. or more, more preferably 55 ° C. to less than 150 ° C., even more preferably less than 100 ° C. Heating is preferably performed by heating with electric resistance.

  Advantageously, the coating means is impermeable for the composition used in step b).

  In the embodiment described above, at least one of the reshaping means or the mechanical tensioning means and at least one of the cover means may include a heater.

  In the above-described embodiment, the “closure space” means that when the coating means is placed on the reshaping means or the mechanical tensioning means (or vice versa), the means together form a closed structure (in which Heat can diffuse, but heat cannot diffuse out of the closed structure or difficult to diffuse out of the structure). Preferably, the coating means and the reshaping means or the mechanical tension applying means can form an enclosed space when set on the head (when the keratin fibers are hair).

  The enclosed space is a condensation cage (in which water and components in the composition used in step b) can evaporate from the keratin fibers, adhere to the walls of the coating means and fall onto the keratin fibers ( condensation cage) may be formed. This cycle is believed to be repeated during the heating of the keratin fibers. Thus, the keratin fibers can always be kept moist, and drying and deterioration of the keratin fibers are prevented.

  Since the keratin fibers in the enclosed space can be kept moist and the temperature of the keratin fibers can be kept constant, the formation of the enclosed space is an important feature of the present invention.

  Preferably, the method of the present invention comprises the additional step of tightening the coating means on the individual's head (if the keratin fibers are hair) by means of a resilient cord, an extensible band or a stretch material. Steps may be included.

  According to the method of the present invention, the amount of cosmetic ingredients in the composition is advantageously reduced compared to methods in the prior art because there is a closed space in which the composition can continuously set on keratin fibers. To do. The amount of cosmetic ingredients may be from 0.3% to 3% by weight of the composition.

  In a preferred embodiment, the coating means may be placed on each hair curler (when the keratin fibers are hair) as reshaping means or mechanical tensioning means. In other words, each of the hair curlers (when two or more hair curlers are used) may be individually covered by the coating means. It is advantageous to cover each hair curler as it can prevent the composition applied on the keratin fibers in step b) from leaking into the scalp.

  In another preferred embodiment, the coating means may cover all hair curlers (when using more than one hair curler). In other words, the coating means may cover the entire head (when the keratin fibers are hair).

  Advantageously, the enclosed space formed in step d) may be maintained during step e). In other words, the coating means may be removed only after step e) or after stopping the heating in step e).

  If desired, the composition may be applied to the keratin fibers before applying mechanical tension to the keratin fibers. The keratin fibers may optionally be before and / or after applying mechanical tension to the keratin fibers, before and / or after applying the aforementioned composition to the keratin fibers, and before and / or after heating the keratin fibers. It can be considered that it can be left as it is for a certain length of time.

  After the above step e), if necessary, the keratin fibers may be fixed by oxidation after removal from the coating means.

(Product)
The present invention further comprises a composition for treating keratin fibers heated in an enclosed space, comprising at least one polyol,
The reducing agent is also of the formula:

(Where
X is a group selected from the group consisting of O ⁻ , OH, NH ₂ , O—OH and O—COO ⁻ ).
The composition also contains no source of carbonate ions.

  It is believed that this composition need not be used in combination with an oxidant used in conventional permanent deformation of keratin fibers. Therefore, when the keratin fibers are permanently deformed, the composition may be used in one step, but in the conventional permanent deformation of keratin fibers, two steps (reduction step and oxidation step) are required.

  The composition may have the same technical characteristics as the composition described above.

The present invention further provides a kit for treating keratin fibers,
At least one reshaping means for imparting mechanical tension to the keratin fibers,
An apparatus comprising at least one coating means for forming an enclosed space, and at least one heater for heating the keratin fibers in the enclosed space;
At least one polyol,
The reducing agent is also of the formula:

(Where
X is a group selected from the group consisting of O ⁻ , OH, NH ₂ , O—OH and O—COO ⁻ ).
And a composition that does not contain any of the reducing agents and / or one or several ion sources.

  The coating means and heater and composition in the kit may be the same as described above.

(Example)
The invention will now be described in more detail by way of examples, which should not be construed as limiting the scope of the invention.

  The following compositions were prepared (units of active ingredient are% by weight):

Composition 1
A hair treatment composition (referred to as “Composition 1”) having the following composition shown in Table 1 was prepared (the unit of the active ingredient was wt%).

(Example 1)
Composition 1 was applied for 20 minutes to 1 g of a natural Japanese hair bundle previously wound on a 1.7 cm heated perm roller. The perm roller was then covered with a plastic film and inserted into a Digital Perm Machine (Oohiro, model number ODIS-2). After the heating method at 70 ° C. for 20 minutes, the hair was rinsed, removed from the permanent roller and dried.

  The hair was soft, smooth and free from tangles.

(Comparative Example 1)
Composition 1 was applied to 1 g of natural Japanese hair bundle (which was the same as used in Example 1) for 20 minutes. The hair was left unheated for 20 minutes, and then the hair was rinsed and dried.

  No special changes were observed after treatment.

Composition 2
A hair treatment composition (referred to as “Composition 2”) having the following composition shown in Table 2 was prepared (the unit of active ingredient was wt%).

(Example 2)
Composition 2 was applied for 15 minutes to 1 g of natural Japanese hair bundle pre-wrapped on a 1.7 cm heated perm roller. Next, this perm roller was covered with a plastic film and inserted on a Digital Perm Machine (Oohiro, model number ODIS-2). After the heating method at 90 ° C. for 15 minutes, the hair was rinsed, removed from the permanent roller and dried.

  The hair was smooth and shiny.

(Comparative Example 2)
Composition 2 was applied to 1 g of natural Japanese hair bundle (same as used in Example 2) for 15 minutes. The hair was left unheated for 15 minutes, after which it was rinsed and dried.

  No special changes were observed after treatment.

(Comparative Example 3)
Composition 2 was the same as that used in Example 2 and was applied for 15 minutes to 1 g of a natural Japanese hair bundle previously wound on a 1.7 cm heated perm roller. The perm roller was then inserted into a Digital Perm Machine (Oohiro, model number ODIS-2). After the heating method at 90 ° C. for 15 minutes, the hair was removed from the permanent roller. The hair was sticky. The hair was then rinsed and dried.

  The hair was shiny and tangled and no change in tactile sensation was observed.

Composition 3
A hair treatment composition (referred to as “Composition 3”) having the following composition shown in Table 3 was prepared (the unit of active ingredient was wt%).

(Example 3)
Composition 3 was applied for 10 minutes to 1 g of a natural Japanese hair bundle previously wound on a 1.7 cm heated perm roller. The perm roller was then covered with a plastic film and inserted into a Digital Perm Machine (Oohiro, model number ODIS-2). After a heating method at 90 ° C. for 10 minutes, the hair was rinsed, removed from the permanent roller and dried.

  The hair was soft and smooth.

(Comparative Example 4)
Composition 3 was applied to 1 g of natural Japanese hair bundle (same as used in Example 3) for 10 minutes. The hair was left unheated for 10 minutes, and then the hair was rinsed and dried.

  No special changes were observed after treatment.

(Comparative Example 5)
Composition 3 was the same as that used in Example 3 and was applied for 10 minutes to 1 g of a natural Japanese hair bundle previously wound on a 1.7 cm heated perm roller. The perm roller was then inserted into a Digital Perm Machine (Oohiro, model number ODIS-2). After a heating method at 90 ° C. for 10 minutes, the hair was rinsed, removed from the permanent roller and dried. The hair was sticky. The hair was rinsed and dried.

  No specific changes were observed after treatment.

Claims (15)

A method for treating keratin fibers, comprising:
Applying a composition comprising at least one polyol on the keratin fibers;
Next, placing the keratin fibers in an enclosed space;
And then heating the keratin fiber.
The composition may also be a reducing agent of the formula:

(Where
X is a group selected from the group consisting of O ⁻ , OH, NH ₂ , O—OH and O—COO ⁻ ).
The method also does not contain a source of carbonate ions.   2. The method of claim 1, further comprising rinsing the keratin fibers after the step of applying the composition onto the keratin fibers and / or after the step of heating the keratin fibers.   The method according to claim 1 or 2, further comprising applying mechanical tension to the keratin fibers.   4. A method according to any one of claims 1 to 3, wherein the enclosed space is formed by at least one coating means.   5. A method according to claim 4, wherein the coating means is hard or soft.   The method according to claim 4 or 5, wherein the coating means includes at least one member selected from the group consisting of a film and a sheet.   7. A method according to any one of the preceding claims, wherein during the step of heating the keratin fibers, the keratin fibers are heated at 50C to 45C.   The keratin fiber is heated by at least one heater that supplies at least one selected from the group consisting of hot air, hot steam, high frequency induction heating, microwave heating, infrared irradiation, laser and flash lamp irradiation. Item 8. The method according to any one of Items 1 to 7.   9. A method according to claim 8, wherein the coating means comprises the heater.   10. The method according to any one of claims 1 to 9, wherein the polyol is selected from glycerin and its derivatives, and glycol and its derivatives.   The polyol is selected from glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, butylene glycol, pentylene glycol, hexylene glycol, 1,3-propanediol, and 1,5-pentanediol. 11. The method according to any one of claims 1 to 10, wherein the method is selected from the group consisting of: The polyol has the following formula (I):
Z- {O (AO) _l (EO) _m- (BO) _n H} _a (I)
(Where
Z means a residue obtained by removing a hydroxyl group from a compound having 3 to 9 hydroxyl groups;
AO means an oxyalkylene group having 3 to 4 carbon atoms,
EO means oxyethylene group,
BO means an oxyalkylene group having 4 carbon atoms,
a means 3 to 9,
l, m, and n mean the average added moles of AO, EO, and BO, and 1 ≦ l ≦ 50, 1 ≦ m ≦ 50, and 0.5 ≦ n ≦ 5, respectively.
The weight ratio of AO to EO (AO / EO) ranges from 1/5 to 5/1,
(AO and EO may be added randomly or in block form)
The method according to any one of claims 1 to 10, which is an alkylene oxide derivative represented by:   13. A method according to any one of the preceding claims, wherein the composition comprises the polyol in an amount of 0.001% to 90% by weight relative to the total weight of the composition. A composition for treating keratin fibers heated in an enclosed space, comprising at least one polyol,
The reducing agent is also of the formula:

(Where
X is a group selected from the group consisting of O ⁻ , OH, NH ₂ , O—OH and O—COO ⁻ ).
A composition containing no carbonate ion source. A kit for treating keratin fibers,
An apparatus comprising at least one coating means for forming an enclosed space, and at least one heater for heating the keratin fibers in the enclosed space;
At least one polyol,
The reducing agent is also of the formula:

(Where
X is a group selected from the group consisting of O ⁻ , OH, NH ₂ , O—OH and O—COO ⁻ ).
And a composition that also does not contain a source of carbonate ions.