CN112261934A

CN112261934A - Method for preventing entanglement of hair or fiber

Info

Publication number: CN112261934A
Application number: CN201980038382.8A
Authority: CN
Inventors: 山崎直幸
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2018-06-12
Filing date: 2019-06-10
Publication date: 2021-01-22
Also published as: JP2019214566A; JP7304211B2; TWI821308B; WO2019240087A1; TW202000185A

Abstract

The present invention provides a method for preventing hair or fiber entanglement, which comprises a step of bringing the hair or fiber into contact with a treatment agent containing or containing the following component (A) and component (B). (A) An aminopolyether-modified silicone having a polyoxyalkylene structure satisfying the following formula (I) is 0.005 to 5 mass%, and 0.01 to 1.6 (I) (wherein Si represents the number of moles of silicon atoms in the component (A) and AO represents the average number of moles of alkylene oxide added in the component (A). The aqueous medium.

Description

Method for preventing entanglement of hair or fiber

Technical Field

The present invention relates to a method of preventing entanglement of hair or fibers.

Background

Hair is damaged by living environment (ultraviolet rays or heat generated by sunlight), daily hair care behavior (friction caused by hair washing or combing), and chemical treatment (dyeing, permanent waving, etc.). If the damaged hairs rub against each other, a large friction force is generated on the surface and entanglement occurs. "tangles of hair" are the cause of all stresses in hair care behavior. The hair cleansing agent such as shampoo is inferior in combing property in an operation of foaming the hair cleansing agent during hair washing, and the hair cleansing agent after hair washing is inferior in combing property during rinsing, and the like, and "hair tangles" are felt.

When a hair cosmetic such as a conditioner or a hair conditioner is used as a method for disentangling hair after shampooing, the hair cosmetic is applied to hair and fused while passing fingers through the tangled portions, thereby disentangling the hair while spreading the lubricating component over the hair surface. In the prior art, cationic surfactants, higher alcohols, silicones, and the like are blended in hair cosmetics such as conditioners, hair conditioners, and the like in order to improve the combing properties or the combing through properties of hair.

Patent document 1 discloses a hair cosmetic composition using a polyether amino group-modified silicone and a cationic surfactant, which can prevent hair from being damaged by entanglement of hair during rinsing by suppressing the dry feeling of hair in a water stream during rinsing and improving softness or smoothness.

Patent document 2 discloses that a hair cosmetic composition comprising an amino-modified silicone, an aminopolyether-modified silicone, a dimethylpolysiloxane having a specific kinematic viscosity range, a specific alkyl cation, and a specific higher alcohol in combination can improve the water retention of hair, improve the combing properties during use, provide a soft and moist finish, and provide a dry and moist feel under low humidity.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2002-249418

Patent document 2: japanese patent laid-open publication No. 2013-43848

Disclosure of Invention

The present invention relates to a method for preventing hair or fiber entanglement, which comprises a step of bringing hair or fiber into contact with a treatment agent containing or containing the following component (a) and component (B).

(A) An aminopolyether-modified silicone having a polyoxyalkylene structure, which satisfies the following formula (I), and which is contained in an amount of 0.005 to 5 mass%;

0.01≤Si/AO≤1.6(I)

[ in the formula (I), Si represents the number of moles of silicon atoms in the component (A), and AO represents the average number of moles of alkylene oxide added in the component (A). ]

(B) An aqueous medium.

Detailed Description

[ method of preventing entanglement of hairs or fibers ]

The method for preventing the entanglement of hair or fiber of the present invention (hereinafter, also simply referred to as "the method of the present invention") is characterized by comprising a step of bringing the hair or fiber into contact with a treatment agent containing or containing the following component (a) and component (B).

0.01≤Si/AO≤1.6(I)

(B) An aqueous medium.

The method of the present invention, by having the above steps, can suppress the occurrence of entanglement in hair or fiber that is likely to cause entanglement, and can spontaneously release entanglement without performing an operation such as passing a hand when entanglement occurs. The phrase "containing the component (A) and the component (B)" also means "comprising the component (A) and the component (B) in combination".

Patent documents 1 and 2 do not disclose suppression and elimination of hair tangles, and particularly do not disclose spontaneous disentanglement of hair by an operation such as passing a hand.

The present invention relates to a method for preventing entanglement of hair or fibers, which can suppress the occurrence of entanglement in hair or fibers that are likely to cause entanglement, and which can spontaneously release entanglement without performing an operation such as passing a hand when entanglement has occurred.

The present inventors have found that: the above problems can be solved by performing a step of bringing hair or fiber into contact with a treatment agent containing or containing a predetermined amount of an aminopolyether-modified silicone having a polyoxyalkylene structure and an aqueous solvent, the treatment agent satisfying predetermined conditions.

According to the method of the present invention, in the hair or fiber in which entanglement is likely to occur, the occurrence of entanglement can be suppressed, and when entanglement occurs, the entanglement can be spontaneously disentangled without performing an operation such as passing a hand. For example, if the method of the present invention is applied to hair, the hair can be dried in a short time because the hair can be prevented from being tangled after being washed and towel-dried, and the finish after drying is also good.

The reason why the above-described effects are produced by the method of the present invention is not clear, but is presumed as follows.

It is considered that, for example, in order to suppress the occurrence of entanglement of hair or fibers, it is important to reduce the frictional force acting between the hair or fibers in a state of spontaneously disentangling even when the entanglement occurs. The present inventors have found that: in order to reduce the frictional force acting on the hair or fibers, it is effective to use a treatment agent containing a specific amount of component (a) which is a water-soluble silicone satisfying predetermined conditions.

For example, when the method of the present invention is applied to hair, the hair is towel-dried in a state where the entanglement of the hair is disentangled, so that the contact area between the hair and the towel is increased, and the moisture of the hair is rapidly absorbed by the towel. In addition, it is considered that, when the hair dryer is dried or naturally dried, the moisture in the hair is rapidly evaporated due to the increase in the contact area of the hair with the air, and therefore, the drying speed of the hair is increased.

The subject to which the method of the present invention is applied is preferably hair from the viewpoint of effectively obtaining the effects of the invention. That is, the treatment agent used in the method of the present invention is preferably a hair treatment agent.

The form of the treatment agent is not particularly limited, and any form such as liquid, foam, paste, cream, solid, powder, etc. may be used depending on the method of bringing the hair or fiber into contact with the treatment agent. When the hair or the fiber is contacted by immersing it in the treatment agent, it is preferably in a liquid state.

Hereinafter, each component contained or blended in the treating agent used in the present invention will be described.

< ingredient (A): amino polyether-modified silicone having polyoxyalkylene structure

The treating agent used in the present invention contains or is blended with an aminopolyether-modified silicone containing a polyoxyalkylene structure satisfying the following formula (I) as a component (a).

0.01≤Si/AO≤1.6(I)

By containing or blending the component (a) in the treatment agent, the occurrence of entanglement of hair or fibers can be suppressed by the above action mechanism, and when entanglement occurs, the entanglement can be spontaneously disentangled without performing an operation such as passing a hand.

In formula (I), Si/AO is 0.01 or more, preferably 0.05 or more, more preferably 0.1 or more, further preferably 0.3 or more, further more preferably 0.5 or more, further more preferably 0.7 or more, and from the same viewpoint, is 1.6 or less, preferably 1.4 or less, more preferably 1.2 or less, further preferably 1.0 or less, further more preferably 0.9 or less, from the viewpoint of the effect of preventing entanglement of hair or fibers and the quick-drying property.

The Si/AO in the formula (I) can be obtained by¹H-NMR measurements were carried out to calculate the integral value of H in the silicon-bonded hydrogen atom and the hydrocarbon group and the integral value of H in the oxyalkylene group. Specifically, the measurement can be carried out by the method described in examples.

From the viewpoint of the effect of preventing the entanglement of hair or fibers and the quick-drying property of the hair or fibers after the treatment, the nitrogen content of the component (a) is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, further preferably 0.5% by mass or more, further preferably 1.0% by mass or more, and preferably 2.5% by mass or less, more preferably 2.0% by mass or less, further preferably 1.8% by mass or less, further more preferably 1.5% by mass or less. The specific range of the nitrogen content of the component (a) is preferably 0.1 to 2.5% by mass, more preferably 0.2 to 2.0% by mass, even more preferably 0.5 to 1.8% by mass, and even more preferably 1.0 to 1.5% by mass. The nitrogen content of the component (A) is a value measured by a potentiometric titration method prescribed in JIS K0113: 2005.

More specifically, the component (a) is preferably an aminopolyether-modified silicone having a repeating unit represented by the following general formula (1). More preferably, the amino polyether-modified silicone is composed of a repeating unit represented by the following general formula (1).

[ in the formula (1), R¹Represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 6 carbon atoms. R²Represents R¹Or E. E represents-R³-Z(R³Represents a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms, and Z represents a primary to tertiary amino group-containing group. ) Monovalent radicals represented. Y represents an alkylene group having 1 to 6 carbon atoms. a represents a number of 2 or more, b represents a number of 1 or more, c represents a number of 4 or more and 100 or less, and d represents a number of 1 or more. n represents a number of 2 to 10. The bonding order of the constitutional units in parentheses is not limited, and the bonding mode may be a block or a random. C number of C_nH_2nThe O's may be the same or different. In addition, a plurality of R¹、R²And E may be the same or different.]

When the component (A) is composed of a repeating unit represented by the general formula (1), Si/AO in the formula (I) is represented by (a + b + 1)/c.

In the general formula (1), R¹Is a hydrogen atom or a carbon atom number 1A monovalent hydrocarbon group of 6 or more. R¹Each independently is preferably a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a phenyl group, more preferably a methyl group or an ethyl group, and still more preferably a methyl group.

In the general formula (1), R²Represents R¹Or E. E represents-R³-Z(R³Represents a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms. ) Monovalent radicals represented.

R³The divalent hydrocarbon group has preferably 1 to 20 carbon atoms, more preferably 1 to 20 carbon atoms, still more preferably 1 to 6 carbon atoms, yet more preferably methylene, ethylene, trimethylene, propylene, tetramethylene, or hexamethylene, and yet more preferably trimethylene or propylene.

Z is a primary to tertiary amino group-containing group, preferably-N (R)⁴)₂、-NR⁴(CH₂)_mN(R⁴)₂or-NR⁴(CH₂)_mN(R⁵)CO-R⁶The amino-containing group is represented. Here, R⁴And R⁵Each independently represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, preferably a hydrogen atom or a methyl group. R⁶Represents an alkyl group having 1 to 3 carbon atoms. m represents a number of 1 to 6, preferably 2 to 4.

In the general formula (1), the preferred E group is- (CH)₂)₃-NH₂、-(CH₂)₃-N(CH₃)₂、-(CH₂)₃-NH-(CH₂)₂-NH₂Or- (CH)₂)₂-NH-(CH₂)₂-N(CH₃)₂More preferably- (CH)₂)₃-NH-(CH₂)₂-NH₂。

In the general formula (1), Y is an alkylene group having 1 to 6 carbon atoms, preferably an ethylene group, a propylene group, a trimethylene group, an n-butylene group (tetramethylene group) or an isobutylene group, and more preferably an n-butylene group or an isobutylene group. As used hereinThe isobutylene group contains-CH (CH)₃)CH₂CH₂-、-CH₂CH(CH₃)CH₂-and-CH₂CH₂CH(CH₃)-。

In the general formula (1), a represents a number of 2 or more, b represents a number of 1 or more, c represents a number of 4 or more and 100 or less, and d represents a number of 1 or more. a is preferably a number of 2 to 1000, more preferably a number of 2 to 100. b is preferably a number of 1 to 50, c is preferably a number of 4 to 50, more preferably a number of 10 to 18, and d is preferably a number of 1 to 100.

In the general formula (1), n represents a number of 2 to 10, preferably 2 to 6, and more preferably 2 to 4.

The component (a) is more preferably an aminopolyether-modified silicone having a repeating unit represented by the following general formula (2). More preferably, the amino polyether-modified silicone is composed of a repeating unit represented by the following general formula (2). When the component (A) is composed of a repeating unit represented by the general formula (2), Si/AO in the formula (I) is also represented by (a + b + 1)/c.

In the formula (2), a to d are the same as described above. ]

The component (a) may be in any form of oil, emulsion, etc., and is preferably oil.

When the component (A) is an oil, the kinematic viscosity at 25 ℃ is preferably 50mm from the viewpoint of efficiently leaving the oil in the hair or the like to exhibit the effects of the present invention²Is more than or equal to s, and is more preferably 100mm²At least s, more preferably 300mm²At least s, more preferably 500mm²(ii) at least s, more preferably 700mm²More than s, preferably 50,000mm from the viewpoint of water solubility²Less than s, more preferably 20,000mm²A thickness of 10,000mm or less, more preferably²(ii) less than s, and more preferably 5,000mm²(ii) less than s, and more preferably 3,000mm²(ii) less than s, and more preferably 1,500mm²(ii) less than s, more preferably 1,400mm²The ratio of the water to the water is less than s. The specific range of kinematic viscosity of component (A) at 25 ℃ is preferably 50 to 50,000mm²More preferably 100 to 20,000 mm/s²More preferably 300 to 10,000mm in terms of mass fraction²More preferably 500 to 5,000 mm/s²More preferably 500 to 3,000 mm/s²And more preferably 500 to 1,500mm²And more preferably 700 to 1,400mm in terms of the mass fraction of the particles²/s。

The kinematic viscosity of the component (A) is a value measured at 25 ℃ in accordance with "method for measuring liquid viscosity" specified in JIS Z8803:2011 or ASTM D445-46T, and can be measured, for example, by using an Ubbelohde viscometer.

The component (A) may be used in 1 kind or in combination of 2 or more kinds.

As the component (A), commercially available aminopolyether-modified silicones can also be used. For example, the amino polyether-modified silicone having the repeating unit represented by the general formula (2) includes a copolymer of "SILSTYLE 201" ((bis-isobutyl PEG-14/amino-terminated dimethylpolysiloxane) having a nitrogen content of 1.2% by mass and a viscosity of 1000mm, manufactured by Toray Corning Ltd²And/s, Si/AO ═ 0.80), and the like.

The content or blending amount of the component (a) in the treatment agent is 0.005 mass% or more, preferably 0.01 mass% or more, more preferably 0.02 mass% or more, further preferably 0.03 mass% or more, and further more preferably 0.05 mass% or more, from the viewpoint of the effect of preventing the entanglement of hair or fibers and the quick-drying property of the treated hair or fibers, and from the same viewpoint, is 5 mass% or less, preferably 3 mass% or less, more preferably 2 mass% or less, further preferably 1 mass% or less, further more preferably 0.8 mass% or less, further more preferably 0.5 mass% or less, and further more preferably 0.3 mass% or less. The content or the amount of the component (a) to be incorporated in the treatment agent is specifically 0.005 to 5% by mass, preferably 0.005 to 3% by mass, more preferably 0.01 to 3% by mass, even more preferably 0.01 to 2% by mass, even more preferably 0.01 to 1% by mass, even more preferably 0.01 to 0.8% by mass, even more preferably 0.01 to 0.5% by mass, even more preferably 0.01 to 0.3% by mass, even more preferably 0.02 to 0.3% by mass, even more preferably 0.03 to 0.3% by mass, and even more preferably 0.05 to 0.3% by mass.

< ingredient (B): aqueous medium

The treating agent used in the present invention contains or is blended with an aqueous medium as the component (B). The aqueous medium is not particularly limited as long as it can dissolve the component (a) and does not damage hair or fibers. The component (B) is preferably water as a main component, and may contain an aqueous medium other than water. Examples of the aqueous medium other than water include: lower alcohols such as ethanol and isopropanol; low molecular weight diols and triols having 6 or less carbon atoms such as 1, 3-butanediol, glycerol, ethylene glycol, propylene glycol, diethylene glycol, and dipropylene glycol.

The content of water in the aqueous medium is preferably 50% by mass or more, more preferably 70% by mass or more, and still more preferably 90% by mass or more, with the upper limit being 100% by mass.

The content or blending amount of the aqueous medium in the treatment agent is preferably 85 mass% or more, more preferably 90 mass% or more, and still more preferably 95 mass% or more, and is 99.995 mass% or less, preferably 99.99 mass% or less, and more preferably 99.95 mass% or less.

In addition, from the viewpoint of bringing the treatment agent into contact with hair or fibers to effectively exhibit the effects of the present invention, the total content or the total blending amount of the component (a) and the component (B) in the treatment agent is preferably 90 mass% or more, more preferably 95 mass% or more, and still more preferably 98 mass% or more. The upper limit is 100 mass%.

< other ingredients >

The treatment agent may contain or incorporate other components as appropriate within a range not impairing the object of the present invention. Examples of the component include: surfactants, pH regulators, antioxidants, oils, anti-dandruff agents, vitamins, bactericides, anti-inflammatory agents, preservatives, chelating agents, moisturizers, pearlescers, ceramides, perfumes, ultraviolet absorbers, and the like, which are components generally blended in hair cosmetics. The total content or the total blending amount of these components is preferably 10% by mass or less, more preferably 5% by mass or less, and still more preferably 2% by mass or less. The lower limit is 0 mass%.

< pH value >

From the viewpoint of preventing damage to hair or fibers, the pH of the treatment agent is preferably 3.0 or more, more preferably 3.2 or more, further preferably 3.5 or more, and preferably 7.0 or less, more preferably 6.5 or less, further preferably 6.0 or less, further more preferably 5.5 or less.

The pH is a measured value at 25 ℃, and specifically, can be measured by the method described in examples.

The method for producing the treating agent is not particularly limited. For example, the composition can be produced by mixing the components (a) and (B) and other components used as needed by the method described in examples, using a known stirring apparatus or the like.

< processing method >

The method of the present invention has a step of bringing the hair or fiber into contact with the treatment agent. By performing this step, the effect of preventing the entanglement of the hair or fiber can be exhibited, and the effect of improving the quick-drying property and the manageability after drying of the treated hair or fiber can be obtained.

In the method of the present invention, at least a part of the hair or fiber may be contacted with the treatment agent. For example, in the case of contacting hair with a treatment agent, at least a part of the hair may be contacted with the treatment agent.

Examples of the method of contacting the hair or fiber with the treatment agent include: a method of applying or spraying a treatment agent to hair or fibers; a method of immersing hair or fiber in a treatment agent, and the like.

In the present invention, it is preferable to contact the hair or the fiber by immersing the hair or the fiber in the treatment agent from the viewpoint of spontaneously disentangling without performing an operation such as passing a hand when the entanglement occurs and the viewpoint of performing the treatment in a short time.

For example, when disentangling the hair, the hair is treated by immersing the hair in the treatment agent and then pulling the hair out of the treatment agent, and the disentangling can be performed without any operation such as passing the hand through the treated hair.

The hair or fiber that comes into contact with the treatment agent may be in a dry state or in a wet state, and the wet state is preferred from the viewpoint of performing the treatment in a short time.

The temperature and time in the step of bringing the hair or fiber into contact with the treatment agent are not particularly limited, and the temperature range is preferably 5 to 50 ℃, more preferably 15 to 45 ℃ from the viewpoint of efficient treatment. The contact time is preferably 5 seconds to 60 minutes, and more preferably 5 seconds to 20 minutes.

The method of the present invention may be carried out by any process other than the above process as long as it has a process of bringing the hair or fiber into contact with the treatment agent.

For example, a step of contacting the hair or the fiber with a treatment agent after the hair or the fiber is washed may be performed. Since entanglement is likely to occur in the process of cleaning hair or fibers, the process of contacting the hair or fibers with the treatment agent after cleaning can effectively disentangle the hair or fibers. The hair or fiber can be washed by a known method using a hair detergent or a fiber detergent.

Further, the hair or fiber may be treated with a conditioning agent and then brought into contact with the treatment agent. After the hair or fiber is washed, the hair or fiber may be further treated with a conditioning agent and then brought into contact with the treating agent.

The treatment with the conditioning agent may be carried out by a known method such as applying the conditioning agent to hair or fibers. After treatment with the care agent, the composition may be further rinsed as necessary.

Specific examples of the method of the present invention include the following.

(1) A method of performing a step of washing hair or fibers and then bringing the hair or fibers into contact with a treatment agent;

(2) a method of performing a step of applying a conditioning agent after cleaning hair or fibers and bringing the conditioning agent into contact with a treatment agent without rinsing;

(3) a method of performing a step of washing hair or fibers, applying a conditioning agent thereto, rinsing the hair or fibers, and then bringing the hair or fibers into contact with a treatment agent;

(4) a method of performing a step of applying a conditioning agent to hair or fibers and bringing the hair or fibers into contact with a treatment agent without rinsing;

(5) a method of applying a conditioning agent to hair or fibers, rinsing the hair or fibers, and then bringing the hair or fibers into contact with a treatment agent.

The hair or fiber after contact with the treatment agent may also be rinsed as desired.

With respect to the above embodiments, the present invention discloses a method of preventing entanglement of hair or fibers.

< 1 > A method for preventing entanglement of hair or fibers, which comprises a step of bringing the hair or fibers into contact with a treatment agent containing or containing the following component (A) and component (B).

(A) An aminopolyether-modified silicone having a polyoxyalkylene structure, which satisfies the following formula (I), and the content thereof is 0.005 to 5% by mass;

0.01≤Si/AO≤1.6(I)

(B) An aqueous medium.

< 2 > a method for preventing entanglement of hair or fibers, which comprises a step of bringing the hair or fibers into contact with a treatment agent containing or containing the following component (A) and component (B).

(A) An aminopolyether-modified silicone having a polyoxyalkylene structure, which satisfies the following formula (I) and has a repeating unit represented by the following general formula (1), and the content thereof is 0.005 to 5% by mass;

0.01≤Si/AO≤1.6(I)

(B) An aqueous medium.

< 3 > a method for preventing entanglement of hair or fibers, which comprises a step of bringing the hair or fibers into contact with a treatment agent containing or containing the following component (A) and component (B).

(A) Satisfying the following formula (I), and having a repeating unit represented by the following general formula (2), and having a kinematic viscosity at 25 ℃ of 500 to 1,500mm²0.005-5 mass% of an aminopolyether-modified silicone having a polyoxyalkylene structure;

0.01≤Si/AO≤1.6(I)

In the formula (2), a represents a number of 2 to 100, b represents a number of 1 to 50, c represents a number of 10 to 18, and d represents a number of 1 to 100. The bonding order of the constitutional units in parentheses is not limited, and the bonding mode may be a block or a random. ]

(B) An aqueous medium.

< 4 > a method for preventing entanglement of hair or fibers, which comprises a step of bringing the hair or fibers into contact with a treatment agent containing or containing the following component (A) and component (B).

0.5≤Si/AO≤1.2(I)

(B) An aqueous medium.

The method is less than 5, such as less than 1 to less than 4, wherein the pH value of the treating agent at 25 ℃ is 3.0-7.0.

The method of < 6 > or < 1 > to < 5 >, wherein the total content or the total blended amount of the component (A) and the component (B) in the treatment agent is 90% by mass or more.

The method of < 7 > such as < 1 > to < 6 > wherein the hair or fiber is contacted by immersing it in the treatment agent.

The method of < 8 > such as < 1 > to < 7 > wherein the step of contacting the hair or fiber with the treatment agent after washing the hair or fiber is performed.

The method of < 9 > such as < 1 > to < 8 > wherein the step of contacting the hair or fiber with the treatment agent after the treatment with the treatment agent is performed.

Examples

The present invention will be described below with reference to examples, but the present invention is not limited to the scope of the examples. In the present example, various measurements and evaluations were performed by the following methods.

(measurement of pH value)

The pH value was measured at 25 ℃ using a pH meter (F-51, manufactured by horiba, Ltd.).

(measurement of Si/AO in component (A))

10mg of the component (A) (aminopolyether-modified silicone 1) used in each example was weighed in a No.3 screw bottle and dried overnight under a nitrogen atmosphere. To the obtained dried product, 1ml of deuterated chloroform (manufactured by Wako pure chemical industries, Ltd.; chloroform-d, 99.8%) was added and dissolved¹H-NMR (JH 074504AV400, manufactured by BRUKER JAPAN) calculates the unit ratio of Si/AO from the integrated value of dimethylsilyl groups (6H: δ -0.3 to 0.3ppm) bonded to silicon and the integrated value of Ethylene Oxide (EO) chains (4H: δ 3.3 to 3.9ppm) by the following formula.

(preparation of evaluation Hair Strand)

The hair bundle of untreated Chinese hair having a mass of 20g and a length of 20cm was applied with 20g of the following bleaching agent, left to stand for 30 minutes, and then thoroughly rinsed with warm water at 35 to 40 ℃. This operation was repeated 4 times to produce evaluation hair strands for hair treatment of each example.

[ composition of bleaching agent ]

(measurement of comb load)

The treated tresses obtained in each example were sufficiently rinsed with warm water at 35 to 40 ℃, and then placed in a combing force measuring device ("KOT-0303" manufactured by yudou sperm cell co., ltd.) so that a comb (9 needles each having a diameter of 2mm were linearly arranged at 4mm intervals) penetrated through the uppermost portion of the tresses, and the load (gf) applied when the comb was passed through the hair ends was measured. The load was 200 points calculated for a hair bundle having a length of 20cm, and the total value of the 200 points was defined as "comb load".

If the comb load is less than 15000gf, it means that the effect of disentangling the hair is very high, and if it is 10000gf or less, it means that the entanglement disappears.

(easiness of comb after drying with towel)

The treated hair tresses obtained in each example were thoroughly washed with warm water at 35 to 40 ℃, placed on a towel, and towel-dried so as to cover both sides and rub against each other.

The hair bundle was placed in a combing force measuring device ("KOT-0303" manufactured by Yudu sperm cell Co., Ltd.), the root of the hair bundle was inserted from the left and right sides using 2 brushes, and the brushes were brushed toward the tip of the hair simultaneously, and this operation was repeated 10 times. The maximum load in one stroke was measured, and the number of strokes required until the load became 400gf or less was evaluated. The smaller the number of strokes shown in the table means that the entanglement of hair after towel drying is also smaller, and the hair is combed more easily.

(evaluation of quick drying)

The treated hair tresses obtained in each example were rinsed with warm water at 35 to 40 ℃ for 30 seconds, then dried with hot air from a hair tress (Sobis TYPE315 manufactured by Can Co., Ltd., air volume setting: High) at a distance of 5 to 15cm from the hair tresses while being combed by hand, and the time until the wet hair returned to the dry weight was measured. The shorter the drying time, the higher the quick drying property.

Example 1 (preparation of treating agent, Hair treatment and evaluation)

The components were mixed in the formulation shown in Table 1 to prepare 500g of a treating agent. The blending amount shown in table 1 is the effective component amount (mass%) of each component.

The prepared evaluation hair bundle was washed with a normal shampoo and then sufficiently wetted with warm water at 35 to 40 ℃. The hair tresses were immersed in 500g of the above-mentioned treatment agent at room temperature (25 ℃) for 30 seconds and then taken out, and various evaluations were made on the treated hair tresses by the methods described above. The results are shown in Table 1.

[ composition of ordinary shampoo ]

*1: as Emal E-27C (Kao corporation, 27 mass% of active ingredient), 42.0 mass%

*2: AMINON C-11S (manufactured by Kao corporation)

Examples 2 to 5 and comparative example 1

Hair treatment was performed in the same manner as in example 1, except that the blending of the treatment agent was changed as shown in table 1, and various evaluations were performed. The results are shown in Table 1.

Example 6

Each component was mixed in the formulation shown in Table 1 to prepare 500g of a treating agent having the same composition as in example 3.

The prepared evaluation hair bundle is washed with the above-mentioned ordinary shampoo, and then sufficiently wetted with warm water of 35 to 40 ℃. The hair strand is smeared with the following ordinary hair conditioner and is washed for 30 seconds by warm water at 35-40 ℃. The obtained hair tresses were immersed in 500g of the above-mentioned treatment agent at room temperature (25 ℃) for 30 seconds and then taken out, and various evaluations were made on the treated hair tresses by the methods described above. The results are shown in Table 1.

[ composition of ordinary Hair conditioner ]

Example 7

Each component was mixed in the formulation shown in Table 1 to prepare 500g of a treating agent having the same composition as in example 1.

The evaluation hair bundle is washed with the common shampoo, and then is sufficiently wetted with warm water at 35-40 ℃. The above-mentioned ordinary hair conditioner was applied to the hair strand, and then the hair strand was immersed in 500g of the above-mentioned treatment agent at room temperature (25 ℃) for 30 seconds and then taken out, and various evaluations were made on the treated hair strand by the above-mentioned methods. The results are shown in Table 1.

Comparative example 2

The evaluation hair bundle is washed with the common shampoo, and then is sufficiently wetted with warm water at 35-40 ℃. The hair conditioner is smeared on the hair bundle and is washed for 30 seconds by warm water at the temperature of 35-40 ℃. Using the obtained hair strands, various evaluations were performed by the methods described above. The results are shown in Table 1.

[ Table 1]

TABLE 1

SILSTYLE 201 manufactured by 1 Donglido Kangning Co., Ltd

Industrial applicability

According to the method of the present invention, in the hair or fiber in which entanglement is likely to occur, the occurrence of entanglement can be suppressed, and when entanglement occurs, the entanglement can be spontaneously disentangled without performing an operation such as passing a hand. For example, if the method of the present invention is applied to hair, the hair can be dried in a short time and the manageability after drying is also improved because the hair can be prevented from being tangled after washing and towel drying.

Claims

1. A method of preventing entanglement of hair or fibers, wherein,

comprising a step of bringing hair or fiber into contact with a treatment agent containing the following component (A) and component (B),

(A) an aminopolyether-modified silicone having a polyoxyalkylene structure satisfying the following formula (I) and having a content of 0.005 to 5% by mass,

0.01≤Si/AO≤1.6 (I)

in the formula (I), Si represents the mole number of silicon atoms in the component (A), AO represents the average addition mole number of alkylene oxides in the component (A);

(B) an aqueous medium.

2. A method of preventing entanglement of hair or fibers, wherein,

comprises a step of bringing hair or fiber into contact with a treatment agent comprising the following component (A) and component (B),

0.01≤Si/AO≤1.6 (I)

(B) an aqueous medium.

3. The method of claim 1 or 2,

the component (A) has a repeating unit represented by the following general formula (1),

in the formula (1), R¹Represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 6 carbon atoms; r²Represents R¹Or in EEither one of them; e represents-R³A monovalent group represented by-Z, R³Represents a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms, and Z represents a primary to tertiary amino group-containing group; y represents an alkylene group having 1 to 6 carbon atoms; a represents a number of 2 or more, b represents a number of 1 or more, c represents a number of 4 or more and 100 or less, and d represents a number of 1 or more; n represents a number of 2 to 10; the bonding order of the structural units in parentheses is not limited, and the bonding mode is block or random; c number of C_nH_2nO is the same or different; in addition, a plurality of R¹、R²And E are the same or different.

4. The method according to any one of claims 1 to 3,

the total content or total blending amount of the component (a) and the component (B) in the treatment agent is 90 mass% or more.

5. The method according to any one of claims 1 to 4,

contacting the hair or fibres by immersing them in the treatment agent.

6. The method according to any one of claims 1 to 5,

the step of contacting the hair or fiber with the treatment agent after the hair or fiber is washed is performed.

7. The method according to any one of claims 1 to 6,

the hair or fiber is treated with a conditioning agent and then brought into contact with the treating agent.