JP3291288B2 - Method of processing fibers or textiles with chemicals - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method for processing fibers or textile products with a chemical.

[0002]

2. Description of the Related Art In order to improve the performance of fibers or textile products, various methods for applying drugs have been proposed. For example, in the case of a water-absorbing fiber, a cross-linking agent or a hydrophobic compound for preventing or reducing shrinkage or morphological change due to water absorption,
For non-water-absorbing fibers, improvement in sweat-absorbing properties by applying a hydrophilic compound and antistatic treatment have been performed. In the case of a synthetic resin, it is possible to knead the drug into the synthetic resin at the fiber production stage, but in the case of a natural fiber, the drug is applied to the formed fiber later. It is inevitable to adopt a method of imparting, and even if it is a synthetic fiber, the quality may be impaired by lowering the crystallinity by kneading the drug, and the drug itself may not withstand spinning conditions in many cases. . In many cases, it is more preferable to apply the agent only to the surface of the synthetic fiber in view of its effect.
Further, when a drug is applied to impart a specific performance to a fiber product, the drug must be applied after the product is manufactured. As a method for improving the performance of a fiber or a fiber product as described above, a method of applying a drug in the form of a fiber or a fiber product is extremely useful. However, according to the conventional drug application method, the application of the drug to the fiber or the fiber product could not be performed sufficiently uniformly. Therefore, if an attempt is made to apply the drug to the surface of the fiber or fiber product without leakage, an increase in the amount of the applied drug is unavoidable, resulting in quality deterioration such as deterioration in physical properties and texture. The addition of an extra drug was economically disadvantageous. Furthermore Despite such a large amount of the drug used, the portion just beyond the reach of drug due to the complexity of the surface structure of the fibers or fiber products it had occurred.

[0003]

SUMMARY OF THE INVENTION The present invention provides a method capable of uniformly imparting a fiber or a fiber product with a small amount of a drug and thereby effectively improving the quality of the fiber or the fiber product.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to a method for controlling the temperature and the
The present invention relates to a method for processing a fiber or a fiber product, which comprises contacting and applying an agent to a fiber or a fiber product while maintaining a reduced pressure condition of Torr or less. As the agent, various agents for improving various performances of the fiber can be applied. Particularly useful agents include, for example, anti-wrinkle, anti-shrinking agents, antibacterial and deodorant agents, antibacterial agents, deodorant agents, flameproof, flame retardant agents, water and oil repellents, antifouling agents, and ultraviolet rays. Shielding agents can be mentioned. By the method of the present invention, the drug can be uniformly applied to the surface or the inside of the fiber or textile product if necessary, and a small amount of the drug can effectively improve the properties of the fiber or textile product and improve the novel properties. Can be provided.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In contacting a drug with a fiber or a fiber product under reduced pressure, the fiber or the fiber product is placed in a closed container, degassed, and the drug is removed while the inside of the closed container is reduced in pressure. A method of injecting into a container can be adopted. According to the method of the present invention, a drug can easily enter a portion where a drug from the outside hardly enters, such as an overlapping portion of fibers in a fiber product. In addition, as the degree of pressure reduction increases, the pressure of the complex concave portions and cracks on the fiber surface also decreases, so that the drug can be introduced into such an open internal structure that is normally difficult. The degree of pressure reduction varies depending on the properties of the fiber or fiber product, the amount of the drug to be applied, and the viscosity of the drug, and cannot be unconditionally determined. However, the pressure is usually reduced to 10 Torr or less, preferably 1 Torr or less. The above-mentioned closed container can be attached with a medicine injecting container via a cock on the upper part.For example, when using a container with a medicine container mounting port having a rubbing portion, the medicine can be reduced under reduced pressure without reducing the degree of decompression. It is convenient to inject into a closed container.

[0006] The drug is dissolved or dispersed in a solvent which does not have a very high boiling point, such as water or alcohol, and has no environmental problem and is easy to remove because the drug is uniform and facilitates penetration into the internal structure of the fiber or fiber product. It is preferable to use them. Fibers or fiber products to which the drug is applied under reduced pressure are removed from the closed container, and then, if necessary, the solvent is removed.
Further, heat treatment may be performed.

[0007]

The present invention will be described below in more detail with reference to examples. Example 1 Chemical treatment was carried out on a mercerized cotton fabric (50-count cotton yarn in both cases, weave density 114 × 78 lines / inch) by the following method (see FIG. 1). 1) The fabric was sealed in a stainless steel closed container 3. 2) With the valve 1 opened and the valve 2 closed, the vacuum pump 4 was operated to reduce the pressure in the closed vessel to 1 Torr. 3) Valve 1 was closed and the vacuum pump was stopped. 4) The following compounded medicine was injected into the medicine container 5. Chemical composition glyoxal resin [trade name "Beckamine DC-W" (manufactured by Dainippon Ink Industries, Ltd.)]: 10% by weight catalyst for resin [trade name "Sumitex Accelerator X-80" (Sumitomo Chemical Co., Ltd.) :) 2% by weight Polyethylene softener [trade name “Maycatex KSR-X” (manufactured by Meisei Chemical Industry Co., Ltd.)]: 2% by weight water: 86% by weight 5) With valve 1 closed, The valve 2 was opened, and the processing agent was introduced into the closed container by the pressure difference. 6) After keeping the medicine in sufficient contact with the dough and holding it for 2 minutes, the reduced pressure state was released, the dough was taken out of the closed container, and squeezed with a mangle so that the squeezing rate became 55%. 7) After drying the dough at 130 ° C for 2 minutes,
For 1 minute.

Example 2 The same cotton fabric fabric as in Example 1 was subjected to chemical processing in the same manner as in Example 1 except that the chemical composition was changed as follows. Chemical composition Citric acid [Nacalai Tesque Co., Ltd., special grade reagent]: 12% by weight sodium lactate [Same as above]: 9% by weight Polyethylene softener [trade name “Maycatex KSR-X” (manufactured by Meisei Chemical Industry Co., Ltd.) )]: 2% by weight Water: 77% by weight

Example 3 Processing was carried out in the same manner as in Example 1 except that a cotton woven fabric subjected to liquid ammonia processing was used as the fabric (both the number of processes was 50 and the weaving density was 114 × 78 / inch). .

Comparative Example 1 The mercerized cotton fabric used in Example 1 was subjected to chemical processing by the following conventional method. The drug composition is the same as that used in Example 1. Conventional method 1) The dough was immersed in a medicine under normal pressure, and was squeezed with a mangle to a squeezing ratio of 55%. 2) After drying at 130 ° C. for 2 minutes, curing was performed at 160 ° C. for 1 minute.

Comparative Example 2 Comparative Example 1 was added to the mercerized cotton fabric used in Example 1.
Chemical processing was performed by the same conventional method as described above. The drug composition is the same as that used in Example 2.

Comparative Example 3 A chemical treatment was carried out in the same manner as in Comparative Example 1, except that the liquid ammonia-treated cotton fabric used in Example 3 was used as the fabric.

The woven fabrics processed in Examples 1-3 and Comparative Examples 1-3 were evaluated for wash and wear properties and tear strength. The results are shown in Table 1.

[Table 1]

Example 4 A drug was processed in the same manner as in Example 1 except that the drug composition was changed as follows. Pharmaceutical composition quaternary ammonium salt [trade name "Nicanon RB" (manufactured by Nika Chemical Co., Ltd.)]: 0.4% by weight Water: 99.6% by weight

Comparative Example 4 A drug was processed in the same manner as in Comparative Example 1 except that the drug composition was the same as in Example 4.

The antimicrobial performance of the fabrics processed in Examples 4 and Comparative Example 4 was evaluated. The results are shown in Table 2.

[Table 2]

The evaluation methods of the wash and wear performance, the tear strength and the antibacterial performance in Tables 1 and 2 are as follows: (1) Wash and wear properties According to JIS L1096 8.23.1A method (drying by tumble drying). The wrinkles after washing 5 times and washing 10 times were evaluated. [Evaluation Criteria] Evaluation criteria were also based on the same law. (2) Tear strength Measured according to JIS L1096 8.15.5D method (Pendulum method). [Evaluation Criteria] Evaluation criteria were also based on the same law. (3) Antibacterial performance Based on JIS L1902 (quantitative test), the bacteriostatic activity value was measured before washing and after washing 30 times, 50 times, and 100 times (the bacteria used were Staphylococcus aureus (ATCC6538P)). [Evaluation Criteria] The antibacterial performance was evaluated based on the bacteriostatic activity value. The higher the bacteriostatic activity value, the better the antibacterial performance. For example, the standard for SEK mark certification by the Council for Evaluation of New Functions of Textile Products is 2.2 or higher, and it is general to evaluate the antibacterial activity when the value exceeds this value.

[0018]

It has been confirmed that the chemical processing method of the present invention provides a high chemical processing effect which cannot be obtained by the conventional method. By utilizing this method, there is a possibility that fibers or fiber products can be imparted with unprecedented performance.

[Brief description of the drawings]

FIG. 1 is a medicine uniform application device.

[Explanation of symbols]

 1, 2: valve, 3: sealed container, 4: vacuum pump, 5: drug container,

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Mikio Tanaka 1-115 Tatsumi-cho, Anan-shi, Tokushima Prefecture Kurashiki Spinning Co., Ltd. Tokushima Plant (72) Inventor Susumu Katsumaru 2--4 Kutaro-cho, Chuo-ku, Osaka-shi, Osaka No. 31 Kurashiki Spinning Co., Ltd. Osaka Head Office (56) References JP-A-7-243180 (JP, A) JP-A-7-34381 (JP, A) JP-A-5-339878 (JP, A) JP JP-A-63-249777 (JP, A) JP-A-8-158256 (JP, A) JP-A-1-292174 (JP, A) JP-A-61-124346 (JP, A) (58) Fields investigated (Int) .Cl. ⁷ , DB name) D06M 23/00 D06B 19/00

Claims (2)

(57) [Claims] 1. A method for processing a fiber or a fiber product, which comprises contacting and applying an agent to a fiber or a fiber product at room temperature and under a reduced pressure of 10 Torr or less. 2. The agent is a wrinkle-proofing agent, a shrink-proofing agent, an antibacterial deodorant, an antibacterial agent, a deodorant agent, a flameproofing agent,
The processing method according to claim 1, which is a flame retardant, a water repellent, an oil repellent, an antifouling agent, or an ultraviolet shielding agent.