Spray-type fiber treatment composition

Abstract

To provide a fiber treatment agent that has good usability as a spray, and gives a skin moisturizing function to a textile product while not causing stickiness.SOLUTION: A fiber treatment agent composition contains (A) glycerol and (B) at least one selected from the group consisting of polyethylene glycol, isoprene glycol and dipropylene glycol. Relative to the total mass of the fiber treatment agent, the content of the component (A) is 20-50 mass% and the content of the component (B) is 5-20 mass%.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a spray-type fiber treatment composition. [Background technology]

[0002] A wide variety of spray-type textile treatment products are available, and the market is expanding year by year. The functions that spray-type textile treatment products typically claim to have include sterilization, deodorization, fragrance, and wrinkle removal, but new products that claim to have new functions, such as providing a cooling sensation when worn, are also appearing. On the other hand, in the cosmetics field, many cosmetics that claim to moisturize the skin (moisturizing cosmetics) are on the market (Patent Documents 1 to 3). With regard to moisturizing cosmetics, there are technologies that can exert a moisturizing effect while suppressing stickiness (Patent Documents 1 and 3). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-6725 [Patent Document 2] Japanese Patent Application Laid-Open No. 2008-266254 [Patent Document 3] Japanese Patent Application Laid-Open No. 2000-256148 Summary of the Invention [Problem to be solved by the invention]

[0004] When glycerin was used to develop a textile treatment agent with new value, imparting skin moisturizing properties to textile products, the following problems were found: (1) the treated textile products became sticky, and (2) it was difficult to achieve a uniform treatment (even spraying) when spraying textile products, making it less user-friendly. [Means for solving the problem]

[0005] As a result of intensive research into the above-mentioned problems, the present inventors have found that combining glycerin with polyethylene glycol and / or isoprene glycol in specific amounts can impart skin moisturizing properties to textile products while suppressing stickiness, and furthermore, can enable uniform spraying. The present invention was made based on this finding.

[0006] That is, the present invention relates to the following [1] to [8]. [1] A spray-type fiber treatment composition, (A) glycerin; and (B) one or more selected from the group consisting of polyethylene glycol, isoprene glycol, and dipropylene glycol, A fiber treatment composition, characterized in that the content of component (A) is 20 to 50 mass % and the content of component (B) is 5 to 20 mass % relative to the total mass of the fiber treatment composition. [2] The fiber treatment composition according to [1] above, further comprising (C) a nonionic surfactant. [3] The fiber treatment composition according to [2] above, wherein component (C) is polyoxyethylene hydrogenated castor oil. [4] The fiber treatment composition according to any one of [1] to [3] above, further comprising (D) a fragrance. [5] The fiber treatment composition according to any one of [1] to [4] above, wherein the content of component (A) is 30 to 45 mass % based on the total mass of the fiber treatment composition. [6] The fiber treatment composition according to any one of the above [1] to [5], wherein the component (B) is polyethylene glycol having a number average molecular weight of 200 to 1,000. [7] The fiber treatment composition according to any one of [1] to [6] above, wherein the content of component (B) is 7 to 15 mass % based on the total mass of the fiber treatment composition. [8] The fiber treatment composition according to any one of the above [1] to [7], wherein the mass ratio (A / B) of the component (A) to the component (B) is 1 to 10. [Effects of the Invention]

[0007] As will be shown in the examples below, the fiber treatment composition of the present invention has excellent usability as a spray and can impart skin moisturizing properties to fiber products while suppressing stickiness. Thus, the present invention can provide a spray-type fiber treatment agent with added value not found in conventional products. DETAILED DESCRIPTION OF THE INVENTION

[0008] [Component (A): Glycerin] Component (A) is added to impart skin moisturizing properties (skin moisturizing properties) to textile products. Component (A) is a known substance and is readily available on the market or can be prepared. The content of component (A) is 20 to 50% by mass, preferably 30 to 45% by mass, and more preferably 35 to 45% by mass, based on the total mass of the fiber treatment composition. When the content of component (A) is 20% by mass or more, the blending purpose can be achieved, and when it is 50% by mass or less, stickiness on the treated fiber product can be suppressed and uniform spraying can be achieved.

[0009] [Component (B): one or more selected from the group consisting of polyethylene glycol, isoprene glycol, and dipropylene glycol] Component (B) is added to solve the above-mentioned problems that occur when component (A) is used alone. Polyethylene glycol (PEG) known in the field of fiber treatment agents can be used without any particular limitation. The number average molecular weight of PEG is not particularly limited, but is preferably 200 to 4000, more preferably 200 to 1000, and even more preferably 200 to 600. When the number average molecular weight is within this range, the occurrence of stickiness in treated fiber products can be further suppressed and sprayability can be further improved. The number average molecular weight of PEG can be measured according to the HPLC method. A single type of PEG may be used, or multiple types may be used in combination.

[0010] Isoprene glycol (IPG) (also called isopentyl diol) can be used without any particular limitation as long as it is contained in a fiber treatment agent. A single type of IPG may be used, or multiple types may be used in combination.

[0011] Dipropylene glycol (DPG) that is blended in fiber treatment agents can be used without any particular restrictions. A single type of DPG may be used, or multiple types may be used in combination.

[0012] Component (B) is a known substance and is readily available on the market or can be prepared. The component (B) may be a single type, or a combination of multiple types (for example, a combination of PEG and IPG). The content of component (B) is 5 to 20 mass%, preferably 7 to 15 mass%, and more preferably 8 to 13 mass%, based on the total mass of the fiber treatment composition. When the content of component (B) is 5 mass% or more, the occurrence of stickiness in the treated fiber product can be suppressed, and when it is 20 mass% or less, uniform spraying can be achieved.

[0013] [Mixing ratio of component (A) and component (B)] The mass ratio (A / B) of component (A) to component (B) is preferably 1 to 10, more preferably 2 to 6, and particularly preferably 3 to 6. Within the above mass ratio range, even better moisturizing effect and suppression of stickiness can be obtained.

[0014] [Optional ingredients] The fiber treatment composition may contain the following optional components as long as they do not impair the effects of the present invention.

[0015] [Component (C): Nonionic surfactant] Component (C) is added to improve the stability (specifically, dispersion stability) of the fiber treatment composition. As the nonionic surfactant, substances known in the field of fiber treatment agents can be used without any particular limitation. Examples thereof include polyoxyethylene monostearate, polyoxyethylene monopalmitate, polyoxyethylene monomyristate, polyoxyethylene distearate, polyoxyethylene dipalmitate, polyoxyethylene dimyristate, polyoxyethylene tristearate, polyoxyethylene tripalmitate, polyoxyethylene trimyristate, polyethylene glycol monostearate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monomyristate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan distearate, polyoxyethylene sorbitan dipalmitate, polyoxyethylene sorbitan dimyristate, polyoxyethylene dilaurate, polyoxyethylene sorbitan dilaurate, polyoxyethylene sorbitan dimyristate, polyoxyethylene sorbitan dilaurate, polyoxyethylene sorbitan dilaurate, polyoxyethylene sorbitan dimyristate, polyoxyethylene sorbitan dilaurate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monomyristate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan distearate, polyoxyethylene sorbitan dipalmitate, polyoxyethylene sorbitan dimyristate, polyoxyethylene sorbitan dilaurate ... Examples of suitable oleic acid surfactants include oxyethylene sorbitan, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan tripalmitate, polyoxyethylene sorbitan trimyristate, polyoxyethylene sorbitan trilaurate, polyoxyethylene sorbitan tetraoleate, polyoxyethylene sorbit monolaurate, polyoxyethylene hydrogenated castor oil, polyoxyethylene polyoxypropylene cetyl ether, polyglyceryl monostearate, polyglyceryl monooleate, polyglyceryl distearate, polyoxyethylene glyceryl triisostearate, polyoxyethylene glyceryl isostearate, decaglyceryl tristearate, polyglyceryl trioleate, and polyoxyethylene-methylpolysiloxane copolymer. As component (C), polyoxyethylene hydrogenated castor oil is preferred, and among these, polyoxyethylene hydrogenated castor oil having an average number of added moles of ethylene oxide (EO) of 20 to 100, preferably 40 to 60, is more preferred.

[0016] Component (C) is a known substance and is readily available on the market or can be prepared. The component (C) may be used alone or in combination of two or more types. The content of component (C) is not particularly limited as long as it is an amount that can achieve the intended purpose, but is preferably 0.1 to 10 mass %, more preferably 0.5 to 5 mass %, based on the total mass of the fiber treatment composition.With a content within this range, a greater blending effect can be obtained.

[0017] [(D) Ingredient: Fragrance] Component (D) is added to impart fragrance to the fiber treatment composition itself and / or to impart fragrance to the textile product after treatment with the composition. As component (D), any substance known in the field of textile treatment agents can be used without particular limitation. Lists of usable fragrance raw materials are found in various literature, such as "Perfume and Flavor Chemicals," Vol. I and II, Steffen Arctander, Allured Pub. Co. (1994), "Synthetic Fragrances: Chemistry and Product Knowledge," by Indo Genichi, The Chemical Daily Co. (1996), "Perfume and Flavor Materials of Natural Origin," by Steffen Arctander, Allured Pub. Co. (1994), "Encyclopedia of Fragrances," edited by the Japan Fragrance and Fragrance Association, Asakura Shoten (1989), "Perfumery Material Performance V.3.3," by Boelens Aroma Chemical Information Service (1996), and "Flower Oils and Floral Compounds in Perfumery," by Danute Lajaujis Anonis, Allured Pub. Co. (1993).

[0018] The component (D) may be used alone or in combination as a fragrance composition containing multiple types. The content of component (D) is not particularly limited as long as the blending purpose can be achieved, but it is preferably 0.01 to 1 mass %, more preferably 0.05 to 0.5 mass %, based on the total mass of the fiber treatment composition.

[0019] [Stabilizers other than component (C)] The stabilizer is added to improve the stability (specifically, the antiseptic performance) of the fiber treatment composition. As the stabilizer other than component (C), any substance known in the field of fiber treatment agents can be used without particular limitation. Examples include sodium benzoate, citric acid, and phenoxyethanol. The stabilizers are known materials and are readily available commercially or can be prepared. The stabilizer may be used alone or in combination of two or more kinds. The content of the stabilizer is not particularly limited as long as the purpose of the blending can be achieved, but it is preferably 0.2 to 5 mass %, more preferably 0.5 to 2 mass %, based on the total mass of the fiber treatment composition.

[0020] [Volatile alcohol] The volatile alcohol is added to improve the drying property after being sprayed onto the textile product. As the volatile alcohol, any substance known in the field of fiber treatment agents can be used without particular limitation. Examples include alcohols having 1 to 3 carbon atoms (preferably 1 to 2 carbon atoms), and among these, ethanol is preferred. Volatile alcohols are known materials and are readily available commercially or can be prepared. The volatile alcohol may be used alone or in combination. The content of the volatile alcohol is not particularly limited as long as the blending purpose can be achieved, but is preferably 1 to 20 mass %, more preferably 5 to 10 mass %, based on the total mass of the fiber treatment composition.

[0021] [Deodorizing ingredient] The deodorizing component is added to impart deodorizing properties to textile products. The deodorizing component can be any substance known in the field of textile treatment agents, without particular limitation. Examples include highly branched cyclic dextrin (e.g., Cluster Dextrin, product name, manufactured by Glico Nutrition Foods Co., Ltd.), trisodium methylglycine diacetate, zinc oxide, magnesium oxide, polyphenols, and natural products containing flavonoids (e.g., green tea extract). The deodorizing ingredients are known substances and are readily available on the market or can be prepared. The deodorizing component may be used alone or in combination of two or more kinds. The content of the deodorizing component is not particularly limited as long as the purpose of the blending can be achieved, but it is preferably 0.1 to 3 mass %, more preferably 0.1 to 1.5 mass %, based on the total mass of the fiber treatment composition.

[0022] [Antibacterial ingredient] The antibacterial component is added to inhibit the growth of bacteria on the treated textile product and to suppress the generation of unpleasant odors. The antibacterial component can be any substance known in the field of textile treatment agents, without particular limitation. Examples include organic antibacterial and antifungal agents and inorganic antibacterial and antifungal agents. Examples of organic antibacterial and antifungal agents include alcohols, phenols (e.g., isopropylmethylphenol), aldehydes, carboxylic acids, esters, ethers, nitriles, peroxides and epoxies, halogens, pyridine and quinolines, triazines, isothiazolones, imidazole and thiazoles, anilides, biguanides, disulfides, thiocarbamates, carbohydrates, tropolones, and organometallics. Examples of inorganic antibacterial and antifungal agents include metal oxides and silver-based agents. Antimicrobial components are readily available commercially or can be prepared. The antibacterial component may be used alone or in combination of two or more kinds. The content of the antibacterial component is not particularly limited as long as the blending purpose can be achieved, but it is preferably 0.05 to 1 mass %, more preferably 0.1 to 0.7 mass %, based on the total mass of the fiber treatment composition.

[0023] 〔water〕 The fiber treatment composition is preferably an aqueous composition containing water. As the water, tap water, ion-exchanged water, pure water, distilled water, etc. can be used, but ion-exchanged water is preferred. The water content is not particularly limited, but is preferably 10% by mass or more, and more preferably 40% by mass or more, based on the total mass of the fiber treatment composition. A content of 40% by mass or more improves usability.

[0024] [Other optional ingredients] In addition to the optional components described above, known components that can be incorporated into fiber treatment agents and cosmetics can be appropriately incorporated. Examples include functional components (silicones (to improve the feel of textile products), anti-armpit odor agents, anti-acne agents, whitening agents, keratin softeners, etc.), pH buffers, UV absorbers, organic solvents, preservatives, chelating agents, anti-redeposition agents, polymers, anti-mold agents, repellents, extracts of natural products, dispersants, antioxidants, etc.

[0025] [pH of fiber treatment composition] The pH of the fiber treatment composition is not particularly limited, but the pH at 25°C is preferably adjusted to within the range of 4.5 to 7, more preferably 5 to 6, from the viewpoint of storage stability. The pH can be adjusted by adding a known pH adjuster (for example, citric acid, etc.). The pH can be measured with a pH meter (eg, Mettler Toledo model MP230).

[0026] [Manufacturing method] There are no particular limitations on the production method, and the fiber treatment composition can be produced by mixing component (A) and component (B). For example, the fiber treatment composition can be produced by adding and mixing components (C) and (D) to water, then adding and mixing components (A) and (B), and optionally adding and mixing other optional components, adjusting the pH, and adding the balance of the amount of water.

[0027] [How to use] The fiber treatment composition can be used in the same manner as conventional spray-type fiber treatment agents, but is preferably used by spraying it onto the textile product from a container with a spray mechanism (spray container). Examples of spray containers include trigger spray containers (direct pressure type or pressure accumulation type), dispenser spray containers, etc. Examples of trigger spray containers are described in JP-A-9-268473, JP-A-9-256272, JP-A-10-76196, etc. Examples of dispenser spray containers are described in JP-A-9-256272, etc. The fiber treatment composition may be stored in a plastic container (such as a bottle container or a refillable standing pouch) without a spraying mechanism. Examples of standing pouches are described in JP-A No. 2000-72181. From the viewpoint of storage stability of the fiber treatment composition, the standing pouch preferably has a two-layer structure (inner layer: 100-250 μm linear low-density polyethylene; outer layer: 15-30 μm oriented nylon) or a three-layer structure (inner layer: 100-250 μm linear low-density polyethylene; middle layer: 15 μm oriented nylon; outer layer: 15 μm oriented nylon).

[0028] The type of textile product to be treated is not particularly limited. Examples of textile products include dress shirts, T-shirts, polo shirts, blouses, underwear, innerwear (including functional innerwear), chinos, suits, slacks, skirts, stockings, tights, jackets, coats, knitwear, jeans, pajamas, cushions, floor cushions, sofas, pillowcases, sheets, bed pads, pillows, futons, bed covers, blankets, mattresses, cloth masks, and shoes. Among these, the effects of the fiber treatment composition are particularly pronounced in underwear and innerwear that come into direct contact with the skin. The material of the textile product is not particularly limited, and examples of the material include natural fibers (cotton, wool, linen, etc.), synthetic fibers (polyester, nylon, acrylic, etc.), semi-synthetic fibers (acetate, etc.), regenerated fibers (rayon, Tencel, Polynosic, etc.), and blends thereof, woven blends, and knitted blends thereof. [Example]

[0029] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples. In the examples and comparative examples, the blending amount (%) of each component is expressed as mass % (based on the pure content unless otherwise specified).

[0030] [Component (A)] The following A-1 was used. A-1: Glycerin (product name: Cosmetic glycerin (85% by mass), manufactured by Sakamoto Pharmaceutical Industry Co., Ltd.)

[0031] [(B) component] The following B-1 to B-7 were used. The number average molecular weight of PEG in B-1 to B-4 was measured according to the HPLC method. B-1: PEG with a number average molecular weight of 200 (trade name: PEG-200, manufactured by Sanyo Chemical Industries, Ltd.) B-2: PEG with a number average molecular weight of 400 (trade name: PEG-400, manufactured by Sanyo Chemical Industries, Ltd.) B-3: PEG with a number average molecular weight of 600 (trade name: PEG-600, manufactured by Sanyo Chemical Industries, Ltd.) B-4: PEG with a number average molecular weight of 1,000 (trade name: PEG-1000, manufactured by Sanyo Chemical Industries, Ltd.) B-5: Isoprene glycol (Kuraray Co., Ltd.) B-6: Dipropylene glycol (Asahi Glass Co., Ltd.) B-7: 1,3-butylene glycol (manufactured by Daicel Corporation) (used in comparative examples)

[0032] [(C) component] The following C-1 to C-2 were used. C-1: Polyoxyethylene hydrogenated castor oil with an average EO addition mole number of 40 (trade name: Brownon RCW-40, manufactured by Aoki Oil & Fat Co., Ltd.) C-2: Polyoxyethylene hydrogenated castor oil with an average number of EO moles added of 60 (trade name: Brownon RCW-60, manufactured by Aoki Oil & Fat Co., Ltd.)

[0033] [(D) Ingredient: Fragrance] Fragrance compositions D-1 to D-7 having the formulations shown in the table below were used. The numerical value of each fragrance component in the table is % by mass relative to the total mass of the fragrance composition.

[0034] TIFF0007754636000001.tif136170

[0035] TIFF0007754636000002.tif181170

[0036] TIFF0007754636000003.tif91170

[0037] TIFF0007754636000004.tif156170

[0038] TIFF0007754636000005.tif126170

[0039] TIFF0007754636000006.tif171170

[0040] TIFF0007754636000007.tif161170

[0041] [Other ingredients] The following common components A to B were used. The contents in the table are values ​​relative to the total mass of the liquid fabric softener composition.

[0042] Common ingredient A TIFF0007754636000008.tif26153

[0043] Common component B TIFF0007754636000009.tif62145

[0044] [Method for preparing liquid fiber treatment composition] Fiber treatment compositions were prepared having the formulations shown in Table 1 below. In Table 1, the unit (%) of the numerical values ​​for each component is % by mass relative to the total mass of the fiber treatment composition. In Table 1, "A / B ratio" indicates the mass ratio of component (A) to component (B).

[0045] The fiber treatment composition was prepared according to the following procedure. Components (C) and (D) were added to 10 g of ion-exchanged water and mixed, and then components (A) and (B) were added and mixed until uniform. The common components were added to the resulting mixture and mixed to adjust the pH to 5.0 (25°C), and ion-exchanged water was added and mixed to bring the total mass to 100 g, yielding a fiber treatment composition.

[0046] Evaluation of fiber treatment compositions The fabric treatment compositions were evaluated from the viewpoints of "imparting skin moisturizing function to fabric products," "stickiness of treated fabric products," and "spray properties (ease of uniform spraying)."

[0047] 1. Imparting skin moisturizing properties to textile products The moisturizing properties of the skin were evaluated using the change in moisture content as an index. First, the evaluator's "skin moisture content (initial)" was measured according to the following procedure. The subject's forearm was washed with a cleanser, rinsed with running water, and then thoroughly absorbed with a towel. After that, the subject was allowed to rest for 10 minutes in a thermostatic chamber (20°C, 40% RH), and then the skin moisture content was measured using a Corneometer (manufactured by Integral Co., Ltd.). Next, the evaluator's "skin moisture content (6 hours later)" after applying the textile product treated with the textile treatment agent for 6 hours was measured according to the following procedure. A test cloth (10 cm x 10 cm) was prepared from Heattech innerwear (manufactured by Uniqlo Co., Ltd.) made of synthetic fibers (38% polyester, 32% acrylic, 21% rayon, 9% polyurethane). Using a dispenser bottle (with a spray mechanism) of a commercially available product (Aroma Rich Fragrance Mist, manufactured by Lion Corporation), 0.2 g of the textile treatment agent composition was uniformly sprayed onto the test cloth, which was then allowed to dry for at least 30 minutes to prepare a treated test cloth. The treated test cloth was applied to the evaluator's forearm for 6 hours, and the skin moisture content at the application site was measured. Measurements were performed using a Corneometer (manufactured by Integral Co., Ltd.) after allowing the subject to rest for 10 minutes in a thermostatic chamber (20°C, 40% RH). The above procedure was carried out on the left and right arms of four evaluators. The measured values ​​were applied to the following formula to calculate the skin moisture change rate (%). Moisture change rate (%) = skin moisture content (after 6 hours) / skin moisture content (initial) x 100 The average moisture change rate (%) of the four evaluators was applied to the following criteria to evaluate the "performance of imparting skin moisturizing function to textile products." The results are shown in the "Moisture retention" column in Table 1. ◎ and ○ were considered to be acceptable. <Judgment criteria> ◎:Average value is 130% or more ○: Average value is 110% or more and less than 130% ×: Average value is less than 110%

[0048] 2. Stickiness of treated textile products A test cloth (10 cm × 10 cm, 1.4 g) was prepared according to the procedure described in 1 above. The fiber treatment composition was sprayed onto the test cloth (spray amount: 15% owf) using a commercially available dispenser bottle (with a spray mechanism) (Aroma Rich Fragrance Mist, manufactured by Lion Corporation) to prepare a treated test cloth. Before the sprayed fiber treatment composition dried, the evaluators touched the treated test fabric with their hands and evaluated the stickiness they felt when they rubbed it into their hands, using a sensory evaluation method based on the following criteria. The average score (calculated to one decimal place) of the four evaluators was applied to the following criteria to evaluate the "stickiness of the treated fiber product." The results are shown in the "stickiness" column in Table 1. ◎ and ○ were considered to be acceptable. <Evaluation criteria> 5 points: Very sticky 4 points: Very sticky 3 points: Sticky 2 points: Slightly sticky 1 point: No stickiness <Judgment criteria> ◎: Average score is less than 2.0 points ○: Average score is 2.0 or more and less than 3.0 points ×: Average score is 3.0 or more

[0049] 3. Spray properties of the fiber treatment composition Using a commercially available dispenser bottle (with a spray mechanism) (Aroma Rich Fragrance Mist, manufactured by Lion Corporation), the fiber treatment composition was sprayed once onto the center of a color broadcloth (blue, 20 cm x 20 cm) from a distance of 20 cm from the color broadcloth. The spray properties were evaluated in terms of uniform spraying according to the following criteria. The average score (calculated to one decimal place) of the four evaluators was applied to the following criteria to evaluate the "spray properties of the fiber treatment composition." The results are shown in the "spray properties" column in Table 1. ◎ and ○ were considered to be acceptable. <Evaluation criteria> 2 points: Can be sprayed evenly 1 point: Able to spray fairly evenly 0 points: Unable to spray evenly <Judgment criteria> ◎: Average score is 2.0 points ○: Average score is 1.0 points or more but less than 2.0 points ×: Average score is less than 1.0 points

[0050] 4. Other evaluations [Industrial Applicability]

[0051] The present invention can be used in the field of fiber treatment agents.

[0052] [Table 1]

Claims

1. A spray-type fiber treatment composition, (A) glycerin; and (B) one or more selected from the group consisting of polyethylene glycol, isoprene glycol, and dipropylene glycol, A fiber treatment composition, characterized in that the content of component (A) is 20 to 50 mass% and the content of component (B) is 5 to 17 mass% relative to the total mass of the fiber treatment composition.

2. The fiber treatment composition according to claim 1, further comprising (C) a nonionic surfactant.

3. 3. The fiber treatment composition according to claim 2, wherein component (C) is polyoxyethylene hydrogenated castor oil.

4. The fiber treatment composition according to any one of claims 1 to 3, further comprising (D) a fragrance.

5. 5. The fiber treatment composition according to claim 1, wherein the content of component (A) is 30 to 45% by mass, based on the total mass of the fiber treatment composition.

6. 6. The fiber treatment composition according to claim 1, wherein component (B) is polyethylene glycol having a number average molecular weight of 200 to 1,000.

7. The fiber treatment composition according to any one of claims 1 to 6, wherein the content of component (B) is 7 to 15 mass % based on the total mass of the fiber treatment composition.

8. The fiber treatment composition according to any one of claims 1 to 7, wherein the mass ratio (A / B) of component (A) to component (B) is 2 to 10.

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