JPH07145560A - Finishing agent composition for fiber - Google Patents

Abstract

PURPOSE:To obtain a finishing agent composition capable of imparting flexibility and smoothness having high washing resistance to a fiber by providing an oleophilic surfactant containing a component having an HLB lower than a specific level and dispersing the surfactant as a main component in water. CONSTITUTION:This finishing agent composition can be produced by compounding an oleophilic surfactant having an HLB of >=9 and selected from a polyoxyalkylene alkyl ether, a polyoxyalkylene alkyl ester (e.g. POE monostearate, POE monooleate and ethylene glycol distearate) and a polyhydric alcohol fatty acid ester such as sorbitan monostearate, a sucrose fatty acid ester and lecithin with a substance such as hydrocarbon (e.g. liquid paraffin and petrolatum), a higher alcohol, a higher alcohol fatty acid ester (e.g. beeswax and spermaceti), a triglyceride and a silicone oil and dispersing the mixture in water. Especially 18 pts.wt. of sorbitan monostearate and 2 pts.wt. of lecithin are dispersed in 80 pts.wt. of water. The composition is effective for imparting excellent softness and smoothness to natural and synthetic fibers or hair.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to natural fibers, recycled fibers,
A novel composition for imparting good flexibility and smoothness to a fiber such as a raw yarn, a woven fabric, a knitted fabric, or a garment made of the synthetic or semi-synthetic fiber alone or a mixture thereof, The present invention relates to a finishing agent composition for fibers, an emulsion and a finishing agent.

Further, the present invention relates to a hair rinse agent having a novel composition for imparting good flexibility / smoothness to hair.

[0003]

2. Description of the Related Art Conventionally, there are the following finishing compositions for fibers.

Finishing compositions obtained by emulsifying mineral oils and vegetable oils with hydrophilic surfactants, for example, mineral oils such as liquid paraffin and spindle oil, and ester-based synthetic oils such as methyl dioctyl sebacate oleate are used as hydrophilic surface active agents. A product that is emulsified and dispersed in water with an agent. As the hydrophilic surfactant (HLB 10 or more), polyoxyalkylene alkyl ether, polyoxyalkylene alkyl phenyl ether,
Examples include higher alcohol sulfate ester salts, polyoxyalkylene alkyl ether sulfate sodium, alkyl sulfonates, alkyl benzene sulfonates, and the like.

Hydrophilic surfactants are used as higher alcohols, or they are emulsified and dispersed in water in the form of sulfate ester salts (concentrated sulfuric acid, chlorosulfonic acid, fuming sulfuric acid).

An unsaturated higher fatty acid triglyceride / higher fatty acid mono / diglyceride mixture in the form of a sulfuric acid ester salt which is emulsified and dispersed in water.

A product obtained by emulsifying and dispersing a polyhydric alcohol fatty acid ester in water with a hydrophilic surfactant. As the polyhydric alcohol fatty acid esters, tallow fatty acid glycerin ester, tallow fatty acid pentaerythritol ester, tallow fatty acid sorbitan ester and the like are used.

[0008] A finishing agent composition containing a kaolin surfactant as a main component. A quaternary ammonium salt such as monostearyltrimethylammonium chloride or distearyldimethylammonium chloride is used as the chaotic surfactant.

A fatty acid amide composed of a fatty acid and a polyalkylene polyamine or an alkanol amine, which is emulsified and dispersed in water using an organic acid / inorganic acid or a hydrophilic surfactant having an HLB of 10 or more. As the fatty acid, stearic acid, behenic acid, and tallow fatty acid are used. As the polyalkylene polyamine, ethylene diamine, propylene diamine, and diethylene triamine are used. As the alkanolamine, monoethanolamine, diethanolamine, triethanolamine, and 2-aminoethylethanolamine are used.

The oil phase component is replaced by a hydrophilic surfactant (HLB
Finishing agent emulsified and dispersed in water at 10 or more). As the oil phase component, a polysiloxane derivative (dimethylpolysiloxane, amino-modified polysiloxane derivative) or a polyfluoroalkyl group-containing compound (perfluoropolyether, perfluoropolyurethane, perfluoroalkylacrylate, perfluoroalkylmethacrylate derivative) is used. I am using.

[0011]

The above items (1) to (4) and (7) are insufficient in the flexibility of the object to be treated after the finishing treatment, and the flexibility of the object to be treated and the smoothness and washing resistance are also insufficient. is there.

Further, the above-mentioned and those which are excellent in softness and smoothness are widely used as a softening agent especially when washed by a household washing machine, but they are poor in hygroscopicity / perspiration, and also as a fluorescent whitening agent. It turns yellow when used together.
Further, since they are very irritating to the skin, they cannot be used especially for baby clothes.

Further, in the above-mentioned ones, the oil phase component itself is excellent in softness / smoothness and water / oil repellent property, but since the hydrophilic surfactant is used for emulsion dispersion, The performance of the components is not fully exhibited, and those properties are poor in washing resistance.

An object of the present invention is to provide a finishing agent composition for fibers and a treating method using the same, which solves the above problems of the prior art.

[0015]

According to the present invention, the above object can be solved by the following finishing composition for fibers and a treating method using the same.

Polyoxyalkylene alkyl ether,
Polyoxyalkylene alkyl ester, polyhydric alcohol fatty acid ester, sucrose fatty acid ester, lecithin,
A finishing agent composition for fibers, comprising at least one lipophilic surfactant having a HLB of 9 or less, which is a lecithin derivative or a fatty acid amide, and is dispersed in water as a main component.

One of hydrocarbons, higher alcohols, higher alcohol fatty acid esters, triglycerides, ester oils, silicone oils, fluororesins and fluoro oils
A finishing agent composition for fibers, which further comprises one or more kinds dispersed therein (claim 2).

90% by weight or more of the contained surfactant is preferably at least one kind of the lipophilic surfactant (claim 3).

0.5 to 3 of the lipophilic surfactants
0 wt% is preferably one or more of lecithin and its derivatives having an HLB of 9 or less (claim 4), and in this case, more preferably a polyhydric alcohol fatty acid ester having an HLB of 9 or less is further added. Contains (claim 5).

The weight ratio of polyhydric alcohol fatty acid ester having HLB of 9 or less / lecithin and its derivative having HLB of 9 or less is preferably 99.5 / 0.5 to 70/30 (claim 6).

A fiber finishing treatment method (claim 7) in which the fiber finishing treatment is carried out by an exhaust method, a padding method or a spray method using the fiber finishing treatment composition.

A method for finishing a fiber, wherein the composition is added to the fiber in a washing machine before, during, or after the washing, in the washing machine.

When washing hair, before washing, during washing,
Alternatively, a method for finishing the hair, wherein the composition is attached to the hair after washing (claim 9).

[0024]

Preferred Embodiment

(Finishing composition for fibers) Polyoxyalkylene alkyl ester includes POE (1) monostearate and PO.
E (2) Polyoxyethylene adducts of higher fatty acids such as monooleate, ethylene glycol / polyethylene glycol higher fatty acid esters such as ethylene glycol distearate, ethylene glycol dioleate, polyethylene glycol (ethylene less than 400) distearate included.

The polyhydric alcohol fatty acid ester includes sorbitan monostearate, sorbitan monooleate,
Sorbitan fatty acid esters such as

Glycerin fatty acid esters such as glycerin monocaprylate, glycerin monooleate and glycerin monostearate,

Pentaerythritol fatty acid esters such as pentaerythritol oleate and pentaerythritol stearate,

Polyglycerin fatty acid higher esters such as diglyceryl monostearate, decaglyceryl tristearate and hexaglyceryl tristearate, and higher fatty acid esters of sucrose are included.

The lecithin and lecithin derivatives include natural lecithin such as soybean lecithin and egg yolk lecithin, hydrogenated products and purified products thereof.

The fatty acid amides include polyalkylene polyamine fatty acid bisamides such as bis-stearyl ethylene diamide and bis-stearyl diethylene triamide, and fatty acid alkanol amides such as stearyl diethanol amide and stearyl aminoethyl ethanol amide.

Hydrocarbons include mineral oil type hydrocarbons such as liquid paraffin, petrolatum and paraffin wax, and animal oil type hydrocarbons such as squalene, squalane and pristane.

Higher alcohols include cetyl alcohol,
Includes oleyl alcohol, tallow alcohol, stearyl alcohol, lanolin alcohol.

Higher alcohol fatty acid ester (wax)
Includes beeswax, carnauba wax, whale wax, and lanolin.

Triglycerides include vegetable oils such as olive oil and jojoba oil, and animal oils such as beef tallow and lard.

Ester oils include isopropyl myristate, isopropyl palmitate, and oleyl oleate.

The silicone oil includes dimethylpolysiloxane, methylhydrogenpolysiloxane, methylhydroxypolysiloxane and amino-modified polysiloxane.

The fluororesin includes tetrafluoroethylene resin,
It includes tetrafluoroethylene / perfluorovinyl ether copolymer resin, vinyl fluoride resin, perfluoropolyurethane, perfluoroalkyl acrylate, and perfluoroalkyl methacrylate.

Fluorine oil includes perfluoropolyether and trifluorochloroethylene copolymer.

(Method for obtaining the composition of claim 1) The above-mentioned H
It can be easily prepared by dispersing a lipophilic surfactant having an LB of 9 or less in water with an emulsifying machine such as a homomixer to obtain a lipophilic surfactant dispersion.

The weight ratio S / W of at least one kind S of the above specific lipophilic surfactants having an HLB of 9 or less and water W is preferably 1/99 to 50/50, more preferably 1/9.
9 to 30/70. If the S / W value exceeds 50/50, the viscosity of the dispersion liquid increases and it becomes difficult to handle.

(Method for obtaining the composition of claim 2) The above-mentioned H
A lipophilic surfactant having an LB of 9 or less is dispersed in water with an emulsifying machine such as a homomixer to obtain a dispersion, and the above-mentioned oil phase component is added while stirring the dispersion with an emulsifying machine such as a homomixer. You can get it.

The lipophilic surfactant having an HLB of 9 or less and the oil phase component described above are mixed in advance (if necessary, heat-melt mixing), and the aqueous phase is stirred with an emulsifier such as a homomixer. While, it can be obtained by a method of adding a mixture.

The weight ratio of oil phase component / lipophilic surfactant is
It is preferably 10 / 0.1 to 10/100. Within this weight ratio range, emulsification is particularly easy. The weight ratio of (oil phase component + lipophilic surfactant) / water is preferably 1 /
It is 99-70 / 30. The value of this weight ratio is 70/30
When it exceeds, the viscosity of the emulsified system increases and it becomes difficult to handle.

In the composition of claim 2, it is preferable that the composition contains lecithin and its derivative in an amount of 0.5 to 30% by weight.

With respect to the composition of claim 2, a composition comprising a polyhydric alcohol fatty acid ester, lecithin and its derivative is particularly preferred.

The weight ratio of these substances is preferably 99.5 / 0.5 to 70.0 / 30.0 for polyhydric alcohol fatty acid ester / lecithin and its derivatives. In this weight ratio range, the emulsion particles of the emulsion system are minimized and a stable emulsion is obtained.

When preparing the treating agent composition of the present invention,
Various hydrophilic surfactants and water-soluble polymers can be used in combination with the lipophilic surfactant. In that case, the mixing ratio thereof is preferably 10% or less based on the total weight of the surfactant.

(Fibre finishing treatment method) The fiber finishing treatment method of the present invention is a method of adhering or adsorbing the composition of the present invention to the fibers.

The fiber is a raw yarn (filament or spun yarn) woven fabric, knitted fabric or knitted fabric made of natural fiber, regenerated fiber, synthetic / semi-synthetic fiber alone or in a mixture thereof, or clothing made of these. Say.

In order to adhere or adsorb the composition of the present invention to the fiber, it is preferable to use an exhaust method, a padding method or a spray method.

The exhaust method uses a dilute solution of the finishing agent (generally, the liquid amount is 10 to 50 times the weight of the fiber,
The amount of the finish used is 1.0 to 10.0 based on the weight of the fiber.
% Weight)), temperature and dipping time, and the number of times of liquid circulation, and the like, and a method in which the finishing agent is selectively adsorbed on the fiber to be exhausted, and a dyeing machine is generally used.

The padding method is a method in which fibers are soaked in a concentrated solution of a finishing agent for a short time and immediately squeezed with a dehydrating mangle so that the fibers are attached. The amount of adhesion is controlled by the concentration of the finishing agent in the liquid and the dehydration rate.

The spray method is a method in which fibers are placed on a conveyor at a constant speed and a finishing solution is sprayed on the fibers to deposit the fibers on the conveyor. Used when the dehydrated mangle cannot be used depending on the material. For example, carpets, car seats and the like.

In the above method, the finishing agent composition of the present invention or the finishing agent emulsion of the present invention (claims 2 to 6) is used as a finishing agent.

The finishing treatment method of the present invention is a method using the above-mentioned finishing treatment composition or finishing treatment agent emulsion of the present invention, and will be described in more detail below.

A yarn produced when a raw yarn is spun by treating (attaching or adsorbing) a raw cotton, a raw wool or the like made of a natural fiber, a recycled fiber, a synthetic / semi-synthetic fiber and a mixture thereof with the emulsion of the present invention. It can prevent breakage. Specifically, the emulsion of the present invention is impregnated or sprayed with a treatment liquid in a treatment bath containing the emulsion of the present invention so as to adhere to the raw cotton / wool of 0.1 to 10% by weight,
It is achieved by post-drying (drying with hot air at 80 to 150 ° C. for 1 to 60 minutes).

In the case of fibers such as woven fabrics and knits, the emulsion of the present invention is attached to the fibers in an amount of 0.1 to 50% by weight, preferably 1.0 to 20% by weight. The drying conditions in this case are preferably 80 to 150 ° C. and hot air drying for 1 to 60 minutes. After drying, 80-150 ° C, 30 seconds-1
When light heat treatment (curing) with hot air for 0 minutes is performed, the durability of the above performance against washing is improved.

By combining the emulsion of the present invention with other refining agents, penetrants, bleaching agents and bleaching aids such as hydrogen peroxide, alkaline agents such as caustic soda, etc. in the pre-dyeing refining of fibers, the refining effect can be improved. The preferred flexibility can be imparted to the fiber in one step without adversely affecting it. (The imparted softness is not impaired even after the subsequent dyeing step.) For that purpose, the emulsion of the present invention is added to, for example, a treatment bath of a general pre-scouring step in an amount of 0.1%.
~ 100 g / l, preferably 1.0 to 20 g / l,
Perform normal pre-scouring.

In the dyeing of fibers, the emulsion of the present invention can be used in combination with dyes and other dyeing aids to impart desirable softness to fibers at the same time as dyeing, without adversely affecting dyeing. . For that purpose, for example, the emulsion of the present invention is added to a general dyeing bath in an amount of 0.1 to 10
0 g / l, preferably 1.0 to 20 g / l is added, and ordinary dyeing is performed.

The imparted flexibility is not impaired even in the post-washing step (soaping step) after dyeing with a reactive dye. Similarly, the emulsion of the present invention can be added to the post-washing bath (soaping bath) after dyeing together with other soaping agents, and the fibers can be softened simultaneously with soaping in one step. For that purpose, for example, the emulsion of the present invention can be added to a general soaping bath in an amount of 0.
1 to 100 g / l, preferably 1.0 to 20 g / l is added and ordinary post-cleaning (soaping) is performed.

The emulsion of the present invention is used at the same time as the fixing agent in the FIX step after dyeing the fiber,
It is possible to impart flexibility to the fiber at the same time as the fixing treatment in one step without adversely affecting the fixing effect or shortening the life of the fixing treatment bath. for that purpose,
The emulsion of the present invention is added to, for example, a general fixing bath in an amount of 0.1 to 100 g / l, preferably 1.0 to 20 g.
/ L is added and a normal fixing process is performed.

The fixing step is a step carried out after dyeing for the purpose of improving the fastness of the dyed product (particularly the wet fastness / wash fastness), and includes the exhaustion method, the padding method and the spray method described above. To do. Generally, the FIX agent is used alone for processing, and a finishing agent for the purpose of giving flexibility is not used together.

As the fixing agent, a polyamine resin or a polycation resin is generally used. Examples of the polyamine resin include polycondensates of alkylenediamine and epichlorohydrin and polycondensates of ammonia and epichlorohydrin. As the polycation resin, for example,
There are cyclized polymers of polyvinyl pyridine quaternary compounds and dimethyl diallyl quaternary ammonium salts.

The emulsion of the present invention can be subjected to various finishing treatments in combination with other finishing agents / softening agents depending on the purpose in finishing finishing of fibers. For example, by using the emulsion of the present invention in combination with a water and oil repellent agent comprising an aqueous dispersion of a polyfluoroalkyl group-containing polymer, flexible water and oil repellent processing can be achieved.

Further, in the finishing process for imparting durable anti-wrinkle property, recovery property, anti-rubber property, etc. to the fiber by using melamine resin, polyurethane resin, methylhydrogenpolysiloxane, etc., the fiber after processing is softened. Sex tends to be impaired. Even when the emulsion of the present invention is used in combination with these resin finishes, it is particularly effective in imparting preferable flexibility without impairing these effects.

The emulsion of the present invention can be used in combination with a conventional softening agent (for example, polyhydric alcohol fatty acid ester type, cationic surfactant type, polysiloxane derivative type, etc.) for softening. For example, it can be used in combination with an amino-modified polysiloxane-based softening agent to reduce the slimy feel and change to a more preferable texture.

The emulsion of the present invention may be used in place of conventional softening agents (cationic surfactants such as stearyltrimethylammonium chloride) in the step of softening after washing the fibers in a commercial or domestic washing machine, or Can be used together for flexible processing. For example, after washing the emulsion of the present invention in a rinse bath,
0 g / l, preferably 0.5 to 20 g / l is added, and a conventional method is followed. According to the finishing treatment method of the present invention, since a cationic surfactant softening agent is not essential, the use thereof is particularly effective in preventing skin irritation for infants and children, which is a problem.

The emulsion of the present invention can be used before, during or after washing in place of or in combination with a conventional rinse agent for the purpose of imparting flexibility to the hair when washing it.

According to the rinse agent of the present invention, the cationic surfactant type softener is not essential, so that it is particularly preferable for the prevention of skin irritation, which is a problem when it is used.

[0070]

【Example】

 (Example-1) Manufacturing method and evaluation of treatment agent emulsion of the present invention An emulsion of the present invention was prepared according to the following formulation.

[0071]

[Table 1]

[0072]

[Table 2]

Preparation Method The oil and the emulsifier or the emulsifier alone were mixed at 100 ° C. for 60 minutes using a stainless stirrer. Purified water was added to this treatment composition, and the mixture was heated at 80 ° C with a tabletop homomixer.
It was treated at 8,000 rpm for 5 minutes to obtain a finish emulsion of the present invention.

Evaluation Items and Methods (1) Smoothness The dynamic friction coefficient (μs) and static friction coefficient (μd) of each sample were measured using a friction tester (manufactured by Kato Tech Co., Ltd.). For evaluation, the absolute values of the comparative examples were compared, and the smaller each value was, the better the smoothness was judged to be.

(2) Softness The texture of each sample not treated with the softening agent and the texture of each sample treated with the product of the present invention and the comparative example were evaluated by a sensory test by five judges.

○: considerably better than the untreated sample Δ: better than the untreated sample × ... comparable to the untreated sample XX: inferior to the untreated sample

(3) Durability of softening effect Each test sample treated with the product of the present invention or the comparative example was used with a commercially available Na linear alkylbenzene sulfonate / higher alcohol sulfate Na-based synthetic detergent, and 0.5% of that was used. Wash in an aqueous solution with a household washing machine at 30 ° C for 30 minutes,
Rinsing was further performed at 30 ° C. for 10 minutes, centrifugal dehydration was performed for 5 minutes, and air drying was performed, and the flexibility thereof was evaluated by the method (2).

(4) Test sample i) 100% cotton 40th knit fabric (commercial product with scouring and bleaching) ii) Wool 60/2 plain fabric (〃) iii) Polyester tropical (commercial product with scouring)

(5) Sample Treatment Method The product of the present invention and Comparative Example were made into 20 g / l aqueous solution (25 ° C.).
± 2.0 ° C). Soak each sample in it for 10 minutes,
After immersion, use rubber hydraulic mangle to squeeze pressure 5.0 kg /
It was dehydrated at a G squeezing ratio of 100% and dried at 100 to 105 ° C. for 15 minutes. After that, heat treatment was further performed at 150 ° C. ± 2 ° C. for 60 seconds.

(6) Comparative example

[Table 3]

The preparation method is the same as in Example-1.

(7) Result

[Table 4]

(Example-2) Application evaluation as a rinse agent for hair Test sample Hair was washed under the following conditions and air-dried to obtain a test sample.

POE (3) lauryl ether sulfate Na 40% solu. 2.0 g / l Bath ratio 1:20 with purified water, room temperature x 15 minutes, then 1:20 with purified water x 15 minutes

Treatment method The product of the present invention and the comparative example were each made into an aqueous solution of 20 g / l (25
° C ± 2.0 ° C). Soak the sample in it for 10 minutes,
After that, the paper towel was used to wipe off water and then air-dry.

Evaluation method Evaluation items and method of Example-1 (1) Same as smoothness.

The products of the present invention are the invention products 1-1 of Example-1.
Same as 4.

Comparative Example-1 is a distearyldimethylammonium chloride type commercial rinse agent (effective solid content 1
2.0%).

Comparative Example 2 is a stearyl trimethyl ammonium chloride / dimethyl polysiloxane type commercial rinse agent (effective solid content: 11.5%).

Result

[Table 5]

(Example-3) Application evaluation as a softening agent for washing clothes The test sample is the same as in Example-1.

Treatment method Using a household washing machine, a sample of 0.5% aqueous solution of a linear alkylbenzene sulfonate Na / higher alcohol sulfate Na-based commercial synthetic detergent was washed at 30 ° C. for 30 minutes, and further 30 ° C. × 10 Rinse, then rinse with 0.5% aqueous solution of finishing agent of the present invention and comparative example, and centrifuge dehydration 5
After a minute, it was air dried.

Evaluation method Same as in Example-1 (2).

The product of the present invention is the same as in Example-1.

The comparative example is a stearyl trimethyl ammonium chloride type commercial softener (effective solid content: 10%).

Result

[Table 6]

[0097]

EFFECTS OF THE INVENTION The finishing composition for fibers according to claim 1 is a polyoxyalkylene alkyl ether, polyoxyalkylene alkyl ester, polyhydric alcohol fatty acid ester, sucrose fatty acid ester, lecithin, lecithin derivative and fatty acid. Any of Amide and HL
Since at least one kind of lipophilic surfactant having B of 9 or less is dispersed in water as a main component, the fiber finished by using this is excellent in flexibility and smoothness, and at the same time, the flexibility of the object to be treated. It also has excellent smoothness and wash resistance.

When the composition according to any one of claims 1 to 6 is used in combination with another finishing agent such as a polyurethane finishing agent,
The performance (water resistance, antifouling property, stretchability, etc.) due to these other finishing agents is not deteriorated.

Further, the treated fiber finished with the composition of claims 1 to 6 does not reduce the inherent moisture absorption (perspiration) property of the fiber, and is also used as a fluorescent whitening agent. Even when used in combination, the treated fiber does not yellow.

Since the compositions of claims 1 to 6 have less irritation to the skin, they can be used for baby clothes.

The respective processing methods of claims 7 to 9 are as follows.
Since one of the compositions of No. 6 is used, good flexibility and smoothness can be given to the object to be treated, and the object to be treated is excellent in flexibility and smoothness and wash resistance.

Claims (9)

[Claims] 1. A polyoxyalkylene alkyl ether,
Polyoxyalkylene alkyl ester, polyhydric alcohol fatty acid ester, sucrose fatty acid ester, lecithin,
A finishing agent composition for fibers, comprising at least one lipophilic surfactant having a HLB of 9 or less, which is either a lecithin derivative or a fatty acid amide, as a main component dispersed in water. 2. One of hydrocarbon, higher alcohol, higher alcohol fatty acid ester, triglyceride, ester oil, silicone oil, fluororesin and fluoro oil.
2. The method according to claim 1, wherein at least one kind is further dispersed.
The finishing agent composition for fibers according to. 3. The fiber finishing agent composition according to claim 1, wherein 90% by weight or more of the contained surfactant is at least one kind of the lipophilic surfactant. object. 4. 0.5 to 3 of the lipophilic surfactants
0% by weight is one or more of lecithin and its derivatives having an HLB of 9 or less.
The finishing agent composition for fibers according to 1. 5. The finishing agent composition for fibers according to claim 4, wherein the HLB contains a polyhydric alcohol fatty acid ester having 9 or less. 6. The weight ratio of polyhydric alcohol fatty acid ester having an HLB of 9 or less / lecithin having a HLB of 9 or less and a derivative thereof is 99.5 / 0.5 to 70/30. The finishing agent composition for fibers according to. 7. A fiber finishing treatment, characterized in that the fiber finishing treatment is carried out by an exhaust method, a padding method or a spray method using the fiber finishing treatment composition according to any one of claims 1 to 6. Method. 8. When the fiber is washed with a washing machine, the composition according to claim 1 is added to the washing tank of the washing machine before, during or after the washing. A method of finishing the fiber. 9. When washing hair, before washing, during washing,
Alternatively, a method for finishing treatment of hair is characterized in that the composition according to claim 1 is attached to hair after washing.