JP7321062B2 - Antibacterial deodorant for textiles, treatment liquid for textiles and antibacterial deodorant textiles - Google Patents

Description

TECHNICAL FIELD The present invention relates to an antibacterial deodorant for fibers, a treatment liquid for fibers, and an antibacterial deodorant fiber. In particular, it has excellent antibacterial and deodorant properties when attached at a low concentration, considering the safety of the environment and the human body. to an antibacterial deodorant for textiles that exhibits excellent performance and also provides washing durability.

Conventionally, in response to the need for cleanliness in home bedding products and interior products, for example, bedding futons, pillows, cushions (body pillows), sheets, etc., and interior carpets, mats, curtains, etc. Antibacterial performance is imparted, or antibacterial properties are imparted for the purpose of deodorant effect by suppressing the growth of bacteria on the fiber. In addition, the number of pet owners is increasing, and the number of indoor pets is increasing year by year due to the popularity of small pets.

In recent years, the number of patients with allergic diseases such as dermatitis including atopic and childhood asthma has been increasing year by year, and attention has been focused on the extermination of mites, which are one of the allergens. In response to such requirements, antibacterial agents include, for example, benzalkonium chloride, cetylpyridinium chloride, chlorhexidine gluconate, and low-molecular-weight organic antibacterial agents such as 5-chloro-2-(2,4-dichlorophenoxyl)phenol. In addition to quaternary ammonium salts, zeolite, silica gel and the like are often used as inorganic antibacterial agents in which antibacterial metals such as silver, zinc and copper are supported. Synthetic fibers antibacterially treated with these materials have high antibacterial properties immediately after processing (so-called initial antibacterial properties), but it is difficult to maintain the antibacterial properties depending on the washing conditions. In addition, when it is mixed with other fibers (cotton, wool, etc.), the washing durability tends to be further reduced, and the irritation to the skin tends to increase.

Synthetic fibers having antibacterial and anti-mite properties include synthetic fibers treated with a treatment agent containing a quaternary ammonium salt compound and a cationic active agent. It cannot be used preferably.

As for bedding products, it is effective to wash them as a countermeasure against allergies caused by mites (including excrement and carcasses), and in recent years, the number of washable futons and the like has been increasing. However, since the futon that is used closely every night and contains moisture from perspiration while sleeping is bulky, it is difficult to wash and dry repeatedly (in the case of drying in the sun, it depends on the weather) as often as clothing, and it is effective in repelling mites. There is a demand for products with For futons, there are cases where cotton is mixed with ordinary synthetic fibers due to washing needs, but due to reasons such as the strong preference for natural fibers, it is not mixed with natural fibers such as wool and cotton. It is often used. Even if these natural fibers are sufficiently washed, they have a characteristic odor, etc., and antibacterial and deodorizing effects are expected by blending them with fibers to which an antibacterial agent has been added.

JP-A-4-333665 JP-A-1-085367 JP-A-10-317279

The present invention has been made in view of the above background, and an object thereof is to provide a fiber having antibacterial and deodorant properties that are durable to washing.

As a result of intensive studies to achieve the above-mentioned problems, the present inventors have found that even when mixed with a wide variety of fibers, excellent antibacterial and deodorant properties can be obtained by imparting a low concentration, and such antibacterial properties are durable to washing. A deodorant was discovered and the present invention was completed.

The present invention provides a quaternary ammonium salt represented by the following general formula (1) (hereinafter referred to as component A) and a quaternary ammonium salt represented by the following general formula (2) (hereinafter referred to as component B), To provide an antibacterial deodorant for textiles comprising

In the above formula, R ₁ is an alkyl group having 16 to 20 carbon atoms, R ₂ is an alkyl group having 10 to 14 carbon atoms, R ₃ is each independently a methyl group or an ethyl group, and R ₄ is a carbon a hydroxyalkyl group having 2 to 3 numbers, n is 1 or 2, ^X- is a methyl sulfate ion or an ethyl sulfate ion, and Y ^n- is a monoalkyl phosphate ion having 2 to 6 carbon atoms or It is a dialkyl phosphate ion.

According to the present invention, an antibacterial deodorant capable of imparting antibacterial and antibacterial properties that are durable to washing, and fibers, particularly synthetic fibers, that are treated with the antibacterial and deodorant and have excellent antibacterial and deodorant properties that are durable to washing are obtained.

Modes for carrying out the present invention will be described in detail below, but the present invention is not limited to these.
The antibacterial deodorant for textiles of the present invention contains a component A represented by the following general formula (1) and a component B represented by the following general formula (2).

In the above formula, R ₁ is an alkyl group having 16 to 20 carbon atoms, R ₂ is an alkyl group having 10 to 14 carbon atoms, R ₃ is each independently a methyl group or an ethyl group, and R ₄ is a carbon a hydroxyalkyl group having 2 to 3 numbers, n is 1 or 2, ^X- is a methyl sulfate ion or an ethyl sulfate ion, and Y ^n- is a monoalkyl phosphate ion having 2 to 6 carbon atoms or It is a dialkyl phosphate ion.

In Component A, R ₁ is an alkyl group having 16-20 carbon atoms. If the number of carbon atoms is 15 or less, the antibacterial resistance to washing is lowered, especially when mixed with other fibers (cotton, wool, etc.). On the other hand, if the number of carbon atoms is 21 or more, the crystallinity is high, the workability is lowered, and sufficient initial antibacterial properties cannot be obtained. Each _R3 is independently a methyl group or an ethyl group. That is, all of R ₃ present in a plurality in component A may be methyl groups or ethyl groups, or methyl groups and ethyl groups may be mixed. X ^- is methylsulfate or ethylsulfate. Methylsulfate ions or ethylsulfate ions improve antibacterial properties during washing. When X ^- is a methyl sulfate ion, R ₃ of Component A is preferably a methyl group, and when X ^- is an ethyl sulfate ion, R ₃ of Component A is preferably an ethyl group. preferable.

Specific examples of such component A include octadecyltrimethylammonium-methylsulfate, hexadecyltrimethylammonium-methylsulfate, octadecyltriethylammonium-ethylsulfate, and the like. In particular, from the viewpoint of the initial antibacterial properties of the resulting textile product and the antibacterial properties that are durable to washing, Component A is preferably hexadecyltrimethylammonium-methylsulfate.

In Component B, R ₂ is a C 10-14 alkyl group. If the number of carbon atoms is 9 or less, the initial antibacterial properties are lowered. On the other hand, if the number of carbon atoms is 15 or more, the crystallinity of the antibacterial deodorant for textiles becomes high, and the workability is lowered, and sufficient initial antibacterial properties cannot be obtained. Each _R3 is independently a methyl group or an ethyl group. That is, all of R ₃ present in a plurality in component B may be methyl groups or ethyl groups, or methyl groups and ethyl groups may be mixed. _R3 is preferably unified to either a methyl group or an ethyl group. R ₄ is a hydroxyalkyl group having 2 to 3 carbon atoms, preferably a hydroxyethyl group from the viewpoint of alleviating the crystallinity of component A (improving solubility). Y ^n- is a monoalkyl phosphate ion or dialkyl phosphate ion having 2 to 6 carbon atoms.

Specific examples of such component B include dodecyldimethylhydroxyethylammonium-butyl phosphate, tetradecyldimethylhydroxyethylammonium-butyl phosphate, dodecyldimethylhydroxyethylammonium-ethyl phosphate, tetradecyldimethyl hydroxyethylammonium-ethyl phosphate salts, and the like. In particular, component B is preferably dodecyldimethylhydroxyethylammonium-butyl phosphate salt from the viewpoint of the initial antibacterial properties and antirust properties of the resulting textile product.

The antibacterial deodorant for textiles of the present invention comprises component A and component B. Component A has a strong affinity with the surface of the fiber, so it has excellent washing durability antibacterial properties for synthetic fibers, and excellent washing durability antibacterial properties when mixed with other fibers (cotton, wool, etc.). Crystals tend to precipitate at room temperature, making it difficult to stably process the fibers. In addition, component A is corrosive and tends to reduce the rust resistance of treated fibers, and there is a concern that rust may occur, for example, in fiber production equipment and fiber post-processing equipment (spinning and non-woven fabric production processes). .

By including component B in addition to component A, the crystallinity of the antibacterial deodorant for fibers is reduced, and the fibers can be stably processed, and the obtained fibers have initial antibacterial properties and washing durability antibacterial properties. This effect is well exhibited even when mixed with other fibers. By containing the component B in addition to the component A, it is possible to suppress the generation of rust due to the component A, and further improve the rust resistance of the processed fiber.

The blending mass ratio of component A and component B used in the antibacterial deodorant for textiles of the present invention is preferably 60:40 to 95:5, more preferably 70:30 to 90:10. When the blending mass ratio of component A to component B is less than 60, the antibacterial properties during washing tend to be poor, while when it exceeds 95, the initial antibacterial properties tend to be lowered.

The fiber treatment liquid of the present invention is a treatment liquid containing an antibacterial deodorant containing component A and component B as essential components, but a third component may be added as long as the intended purpose is not hindered. In particular, the fiber treatment liquid of the present invention preferably contains, in addition to component A and component B, a glycol-based compound represented by the following general formula (3). By including such a glycol-based compound, it is possible to impart the antibacterial deodorant uniformly to every corner of the fiber when processing the fiber without inhibiting the initial antibacterial property, and the initial Improves antibacterial properties.
R ₅ —O(AO) _pH (3)
In the above formula, R ₅ is hydrogen or a linear or branched alkyl group having 1 to 10 carbon atoms, AO is an alkyleneoxy group having 2 to 3 carbon atoms, and p is 1 to 10, preferably is an integer from 1 to 6.

Examples of the glycol-based compound used in the fiber treatment liquid of the present invention include glycols such as ethylene glycol, diethylene glycol, triethylene glycol and tetraethylene glycol, monoalkyl (C1-6) ethers thereof, and the like. be able to. Linear ethylene glycol monobutyl ether is particularly preferred as the glycol-based compound.

The glycol-based compound increases the solubility of the antibacterial deodorant of the present invention and lowers the freezing point of the antibacterial deodorant, thereby improving workability. can improve sexuality. Furthermore, since the glycol-based compound azeotropes with water during drying, it does not remain on the surface of the fiber and does not deteriorate the color fastness or the feel of the fiber product.

The amount of the glycol-based compound is not particularly limited, but it is preferably 30 to 200 parts by mass, more preferably 50 to 150 parts by mass, per 100 parts by mass of component A and component B. If the amount is less than 30 parts by mass, uniformity during processing is impaired and sufficient initial antibacterial properties cannot be obtained.

The concentration of the antibacterial deodorant (component A + component B) in the fiber treatment liquid of the present invention is generally in the range of 5% to 25% by mass, preferably 10% to 20% by mass, regardless of the presence or absence of a glycol compound. is within. The textile treatment liquid may be heated to promote dissolution of the antibacterial deodorant.

By attaching 0.03 to 0.50% by mass of the antibacterial deodorant according to the present invention to the fiber surface, the initial antibacterial property can be obtained with a smaller adhesion amount than conventional knowledge, and the effect is improved by washing. retained afterwards. It also has the same effect when blended with natural fibers such as cotton or wool, or with ordinary synthetic fibers, but particularly preferably when blended with ordinary synthetic fibers. In addition, in the case of mixed cotton with natural fibers, the antibacterial and deodorant effect generally decreases significantly after washing, but when the antibacterial deodorant of the present invention is used, the reduction rate of the antibacterial and deodorant effect is smaller than that of conventional products, In particular, deactivation of antibacterial properties is suppressed.

The fiber treatment liquid according to the present invention can further contain additional components as long as the total amount of component A and component B adhered to the fiber surface is 50% by mass or more and the intended purpose of the present invention is not impaired. . Such additional ingredients include nonionic or cationic surfactants, antistatic agents, leveling agents, defoamers, viscosity reducers and other functional agents. In any case, the total content of component A and component B in the antibacterial deodorant for fibers attached to the fiber surface is preferably in the range of 50 to 100% by mass in the solid content of the antibacterial deodorant for fibers. .

A phenothrin compound and/or icaridin can be attached as an anti-mite agent in order to further impart anti-mite properties to the fiber provided with the antibacterial deodorant according to the present invention. In the case of phenothrin-based compounds, a very small amount of 0.01 to 0.05% by weight of phenothrin-based compound is attached to the fiber mass to obtain anti-mite properties, and the effect is effective on natural fibers such as cotton and wool, as well as ordinary synthetic fibers. It has the effect even if it is mixed with.

The anti-mite agent may be added to the antibacterial deodorant according to the present invention, but it is necessary to optimize the heat treatment temperature. After application, the fibers are preferably treated with an anti-mite agent. As a method for treating with the anti-mite agent, a known method such as spray treatment may be arbitrarily adopted.

As a method for applying the antibacterial deodorant according to the present invention to fibers, any known method can be employed. In particular, it is preferably imparted in the spinning/cotton-making process, and more preferably in a stage after the stretching process and before the heat treatment. Common treatment methods include applying the fiber treatment liquid of the present invention to the drawn fibers by a dipping method, an oiling roller method, a spray method, or the like. Examples of application in the cotton manufacturing process include, after application of the fiber treatment liquid, successively performing a heat treatment process, a crimping process, a cutting process into arbitrary short fiber lengths, and an aging process. The order of the cutting process and the aging process is arbitrary, and the execution of the aging process is also arbitrary.

The amount of the fiber treatment liquid of the present invention applied to the fiber surface is 0.03 to 0.50 mass of the quaternary ammonium salt (mixture of component A and component B), which is an antibacterial deodorant, relative to the mass of the fiber. %, preferably 0.05 to 0.40% by mass, more preferably 0.08 to 0.30% by mass. If the adhesion amount is less than 0.03% by mass, the antibacterial properties may be insufficient, and troubles in the yarn-making and cotton-making processes, especially in cotton products (short fibers, raw cotton), may occur after that. Troubles are more likely to occur in the processing process (carding such as nonwoven fabric production process and spun yarn production process, entangling treatment such as needle punching, spinning processing such as sliver, roving yarn, fine yarn, etc.). On the other hand, when the adhesion amount exceeds 0.50% by mass, the antibacterial effect and antibacterial deodorizing effect proportional to the increase in the adhesion amount cannot be obtained. Therefore, at most, 0.50% by mass should be adhered.

According to the present invention, the amount of the treatment agent containing the antibacterial deodorant attached to the fiber surface is lower than that of the prior art, and the effect of satisfying the object of the present invention can be obtained.

The fibers to be subjected to the antibacterial and deodorizing treatment according to the present invention are preferably synthetic fibers. Synthetic fibers are not particularly limited as long as they are made of a fiber-forming polymer that can be spun and drawn, and include polyester fibers, polyamide fibers, melt-spun fibers such as polyolefin fibers, acetate fibers, rayon fibers, acrylic fibers, and aromatic fibers. It may be either dry-spun or wet-spun fibers such as polyamide fibers. For example, when used as batting for filling such as futons, it is required to be lightweight, bulky, heat-retaining, breathable, washable and quick-drying, etc. From these points of view, polyester fibers are particularly preferred and recommended. . More specifically, preferred polyester fibers include polyethylene terephthalate (PET) fibers, polybutylene terephthalate (PBT) fibers, polytrimethylene terephthalate (PTT) fibers, and the like. Further, the synthetic fibers to be used may be copolymerized or polymer conjugate (core-sheath conjugate yarn, side/side conjugate yarn) as long as the desired purpose is not impaired. Furthermore, it is also a preferred form to use crimping means (eg, anisotropic cooling method, mechanical crimping method, polymer conjugate, etc.).

Synthetic fibers may be long fibers or short fibers, and may be textured yarns, spun yarns, or woven or knitted fabrics. In particular, when used as filling for filling such as futons, crimped staple fibers (raw cotton) are preferable, and the crimp characteristics (number of crimps, degree of crimp, degree of residual crimp, bulkiness, etc.) and cut The length, fiber diameter (fineness), and cross-sectional shape are not particularly limited, and may be appropriately set according to the application. Preferably, the fineness is 0.5 to 17 dtex, and the cut length is about 30 to 76 mm, although it is not necessarily limited to these.

Further, as the fibers of the present invention, only treated fibers may be used, but it is also preferable to use untreated fibers as part of them. For example, it is preferable to blend treated staple fibers and untreated staple fibers and use them as mixed cotton. As the fibers to be treated, synthetic fibers having excellent water resistance and heat resistance are preferred, and polyester fibers are particularly preferred. As the untreated fibers, the same fibers as the treated fibers can be used, but in order to obtain various performances and textures, it is preferable to use different fibers. In particular, it is preferable to use natural fibers such as wool and cotton, which are difficult to process, as untreated fibers. Particularly preferred examples are polyester/wool blends, which are combinations of treated polyester fibers with untreated wool or cotton, and polyester/cotton blends.

Wool, which is a natural fiber, is preferably used for bedding and the like. More specifically, as the wool used for bedding, etc., it is preferable to use wool that is mainly produced in Australia, New Zealand, South Africa, etc. and exported to each country. A variety of wools can be used with different hues, finenesses, cut lengths, resilience and resilience. Further, it is preferable to reduce impurities and remove stains and odors by subjecting the raw wool to a washable treatment and/or an oxidation treatment. Furthermore, when it is used for spinning, it is particularly preferable to use one selected according to hue, fineness, cut length, and the like.

Also, when cotton is used as the natural fiber, it is also preferable to use the one used for bedclothes and the like. Indian or Pakistani desi cotton (thick and short fibers) is preferably used as the filling material for mattresses because it has moderate hardness and cushioning properties that facilitate rolling over. In addition, it is preferable to use cotton from Mexico, America, etc., for the filling of comforters because it has fine and long fibers and feels good on the skin.

The antibacterial and deodorant fiber of the present invention is used for down jackets, jackets with batting, sportswear, work clothes, protective clothing, winter clothes, sleeping bags, floor cushions, kotatsu futons, futons, etc., non-woven fabrics for interiors such as carpets and curtains, and weaving. Although it is suitably used for knitted fabrics and the like, futon batting is particularly preferred.

Examples and comparative examples of the present invention will now be described in detail, but the present invention is not limited to these. Each measurement item in the examples was measured by the following method.
(1) Antirust property of the treatment solution Four layers of gauze were laid on a petri dish of 9 cm in diameter, and 10 ml of an aqueous solution obtained by diluting each treatment solution described below 100 times with water was added to thoroughly soak the gauze. . Next, 10 insect pins washed with acetone (manufactured by Lion Co., Ltd.: product name "pin needle" CS-P23, made of iron, galvanized) were placed on the gauze, and rust was generated after contact at 45°C for 48 hours. The number of insect pins was expressed as a percentage.
(2) Freezing point of antibacterial deodorant Measured according to JIS K0065-1992 (Method for measuring freezing point of chemical products).
(3) Antibacterial deodorant adhesion amount (% by mass): OPU (%)
Calculate the amount of solid content of the treatment liquid from the difference between the absolute dry weight of the fiber treated with the fiber treatment liquid and the absolute dry weight of the fiber after degreasing. The adhesion amount of the antibacterial deodorant was calculated from the compounding ratio, and the OPU (%) was calculated as the mass ratio to the fiber.
(4) Amount of mite-preventing agent attached to fiber surface (% by mass): OPU (%)
The amount of mite-preventing agent (solid content) adhered was calculated by gas chromatography, and OPU (%) was calculated as a mass ratio to the fiber.

・香粧品の皮膚刺激指数による分類
（須貝哲郎,香粧品科学,Vol.19,臨時増刊,49-56(1995)）

(5) Skin patch test Using the occlusion method, the patch was applied to the inner part of the upper arm of 20 healthy subjects for 48.72 hours under occlusion. The skin irritation index based on the 1995 classification) was calculated from the following formula, and it was confirmed that the product was safe at the maximum adhesion amount.
(Method for calculating skin irritation index)
Based on the evaluation criteria of the patching test, the stronger determination was given a score in the determination after 48 hours and 72 hours after application, and the value obtained by dividing the total score of each test substance by the number of subjects was expressed as a percentage.
· Skin irritation index = total score / number of subjects × 100
・Skin criteria

・Classification by skin irritation index of cosmetics
(Tetsuro Sugai, Cosmeceutical Science, Vol.19, Extra Edition, 49-56 (1995))

(6) Washing method The washing method was in accordance with JEC326 (method for washing SEK-marked textile products), and JAFET standard compound detergent was used as the detergent.
(7) Antibacterial test JIS L1902-2015 (antibacterial test method and antibacterial effect of textile products; bacterial species: Staphylococcus aureus, test method: bacterial liquid absorption method). The colony method was used to measure the number of viable cells after culture. For antibacterial properties, the antibacterial activity value was obtained after determining whether the test was successful with a control sample, and when the antibacterial activity value was 2.2 or more, it was judged to have an antibacterial effect.
(8) Anti-mite test It was carried out according to JIS L1920-2007 (test method for anti-mite property of textile products; repellent test-glass tube method). When the repelling rate was 50% or more, it was judged to have an anti-mite effect.

[Synthesis Example 1]
216 parts by weight (130 grams) of hexadecyldimethylammoniumamine are charged into a reaction vessel (made of glass, capacity 1 L). While cooling the reaction vessel to 50° C., 100 parts by mass of dimethyl sulfate is gradually added dropwise. After completion of the dropwise addition, the mixture was allowed to react at 50° C. for 1 hour, and then 684 parts by mass of water was added to obtain 1000 parts by mass of a composition containing 31.6% by mass of hexadecyltrimethylammonium-methylsulfate (component A).

[Synthesis Example 2]
A reaction vessel (glass The mixture was placed in a pressure-resistant container manufactured by the same company and had a capacity of 1 L), and 260 parts by mass of dodecyldimethylamine was added for neutralization. 100 parts by mass of ethylene oxide was charged into this neutralized product and reacted at 100° C. for 3 hours, and 1000 parts by mass of a composition containing 50.0% by mass of dodecyldimethylhydroxyethylammonium-butyl phosphate (component B) was added. Obtained.
Using the compositions of Synthesis Examples 1 and 2, treatment liquids 1 to 3 having compositions shown in Table 1 below were prepared. "Parts" in the table indicate parts by mass.

＊ジエチレングリコールモノブチルエーテルは、ダウ・ケミカル日本株式会社製のブチルジグリコールを使用した。

*Butyl diglycol manufactured by Dow Chemical Japan Co., Ltd. was used as diethylene glycol monobutyl ether.

[Example 1]
Polyethylene terephthalate with an intrinsic viscosity of 0.6 is melt-extruded from a spinneret having a hole diameter of 0.3 mm, 180 holes, and 24 spindles at a spinning temperature of 300°C and a discharge rate of 560 g/min, and a winding speed of 1050 m/min. The drawn yarn was spun at 2.9 times in hot water at 70°C at a drawing speed of 30 m/min and then drawn in hot water at 90°C at a drawing speed of 150 m/min to a fixed ratio, and dried in a cylinder. Next, the dried drawn yarn is immersed in treatment liquid 1 kept at 30 ° C. in an oil bath (bath), squeezed with a crimper, cut to a length of 51 mm, dried at 170 ° C., and treated liquid 1. An antibacterial and deodorant staple fiber having a solid content adhesion amount OPU of 0.10% by mass was obtained. The amount of antibacterial and deodorizing component (total of component A and component B) adhering to the obtained short fibers was 0.08% by mass.
In the treatment liquid 1 used at this time, 19.8 parts by mass of a nonionic viscosity reducing agent (80% by mass of the active ingredient) and an antifoaming agent (37 parts by mass of the active ingredient) were added to 80 parts by mass of the composition of Synthesis Example 1. %) 0.2 parts by mass.
Next, the obtained antibacterial and deodorant short fibers were sprayed with an anti-mite agent (phenothrin) so that the solid content adhesion amount OPU was 0.03% by mass, and polyester short fibers having a single fiber fineness of 6.6 dtex were treated. fiber was obtained. The amount of diethylene glycol monobutyl ether in the obtained polyester short fibers was measured using Headspace GC-MS (manufactured by Agilent Technologies, Inc.: Agilent 7890A), and was below the detection limit (1 mg/kg).
Using the treated staple fibers subjected to antibacterial deodorant treatment and anti-mite treatment in this way, (1) treated staple fibers (polyester) 100% (T100), (2) treated staple fibers and untreated before treatment 50% cotton blend (T/T) with polyester fiber (6.6 dtex, cut length 51 mm), (3) 50% cotton blend (T/W) with treated short fiber and wool fiber, and (4) treatment Four levels of 50% mixed cotton of short fibers and cotton fibers (T/C) were evaluated for antibacterial performance and anti-mite performance without washing and after washing three times. As the wool fiber, raw wool produced in Australia was carbonized, and as the cotton fiber, desi cotton, which is thick and short, was used. Table 2 shows the results.

[Example 2]
The 50% mixed cotton (T/T) of (2) in Example 1 was further evaluated for antibacterial performance and anti-mite performance after 5 and 10 washings. Table 2 shows the results.
[Example 3]
Example except that the squeezing pressure of the crimper was changed so that the solid content adhesion amount OPU of the treatment liquid 1 was 0.21% by mass (the total of component A and component B was 0.17% by mass). Treated as in 1. Table 2 shows the results.
[Example 4]
Example except that the squeezing pressure of the crimper was changed so that the solid content adhesion amount OPU of the treatment liquid 1 was 0.375% by mass (the total of component A and component B was 0.30% by mass). Treated as in 1. Table 2 shows the results. For Example 4, a skin application test was performed.
[Example 5]
It was treated and evaluated in the same manner as in Example 1, except that the anti-mite treatment was not performed. Table 2 shows the results. In Example 5, although anti-mite treatment was not performed, some repelling effect was observed only with the antibacterial deodorant.

[Comparative Example 1]
The treatment liquid 1 was changed to the treatment liquid 2, and the crimper squeeze pressure was changed so that the solid content adhesion amount OPU of the treatment liquid 2 was 0.275% by mass (component A was 0.22% by mass). It was treated in the same manner as in Example 1, except that it was treated with The treatment liquid was treatment liquid 2 (16% by mass of active ingredient)/nonionic viscosity reducer (80% by mass of active ingredient)/antifoaming agent (37% by mass of active ingredient) = 486 parts/23.5 parts/0 0.5 part by mass, and the mass ratio of active ingredients (solid content) in the treatment liquid was component A/nonionic viscosity reducing agent/antifoaming agent=80/19.8/0.2. Table 3 shows the results.
The resulting fiber was insufficient in antibacterial properties, especially after washing of the blended cotton product, and was inferior in rust prevention properties.

[Comparative Example 2]
Processed in the same manner as in Comparative Example 1 except that the crimper squeeze pressure was changed so that the solid content adhesion amount OPU of the treatment liquid 2 was 0.166% by mass (component A was 0.133% by mass). and evaluated. Table 3 shows the results. It was difficult to obtain sufficient antibacterial properties not only after washing but also before washing.
[Comparative Example 3]
The treatment liquid 1 was changed to the treatment liquid 3, and the crimper squeeze pressure was changed so that the solid content adhesion amount OPU of the treatment liquid 3 was 0.10% by mass (component B was 0.08% by mass). It was treated in the same manner as in Example 1, except that it was treated with Table 3 shows the results.
[Comparative Example 4]
Processed in the same manner as in Comparative Example 3 except that the crimper squeeze pressure was changed so that the solid content adhesion amount OPU of the treatment liquid 3 was 0.375% by mass (component B was 0.30% by mass). bottom. Table 3 shows the results. In particular, the antibacterial properties of blended cotton products after washing are insufficient even if the treatment concentration is increased in this way.

According to the present invention, it has excellent antibacterial and deodorant properties even when it adheres to a low concentration in consideration of the safety of the environment and the human body. Since an antibacterial and deodorant fiber exhibiting a good antibacterial and deodorant effect, additionally imparting anti-mite properties as necessary, and having washing durability is provided, its industrial value is extremely large. .

Claims (5)

A quaternary ammonium salt represented by the following general formula (1) (hereinafter referred to as component A) and a quaternary ammonium salt represented by the following general formula (2) (hereinafter referred to as component B) Antibacterial deodorant for textiles.

In the above formula, R ₁ is an alkyl group having 16 to 20 carbon atoms, R ₂ is an alkyl group having 10 to 14 carbon atoms, R ₃ is each independently a methyl group or an ethyl group, and R ₄ is a carbon a hydroxyalkyl group having 2 to 3 numbers, n is 1 or 2, ^X- is a methyl sulfate ion or an ethyl sulfate ion, and Y ^n- is a monoalkyl phosphate ion having 2 to 6 carbon atoms or It is a dialkyl phosphate ion. The antibacterial deodorant for textiles according to claim 1, wherein the blending weight ratio of component A and component B is 60:40 to 95:5. A fiber treatment liquid comprising the fiber antibacterial deodorant according to claim 1 or 2 and a glycol compound. An antibacterial deodorant fiber obtained by attaching 0.03 to 0.50% by mass (based on the weight of the fiber) of the antibacterial deodorant for fiber according to claim 1 or 2 to the surface of the fiber. 5. The antibacterial and deodorant fiber according to claim 4, wherein phenothrin and/or icaridin are further attached to the surface of said fiber.