JPH0987964A - Cloth and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cloth having a functional chemical agent strongly adhered thereto without deteriorating the original touch of the cloth. SOLUTION: A functional chemical agent 14 for imparting a function such as an antimicrobial property, a water-repelling property, a water-absorbing property or a corrosion-preventing property is adhered to a raw cloth 12 modified to enhance the hydrophilicity of the surface by the irradiation of UV light by a coating method, an immersing method, etc., alternatively, the raw cloth 12 is impregnated with the mixture of the functional chemical agent 14 with an adhesive comprising an UV light-curable resin, and subsequently irradiated with UV light for curing the adhesive to adhere the functional chemical agent to the raw cloth.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fabric having an antibacterial or water-repellent agent attached to its surface to impart these functions, and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, when various fabrics are required to have the required functions, such as a water-repellent function, a water-absorption function, an antibacterial function, an anti-fusing function, etc., a chemical agent for imparting the function to the cloth is used. There is a method of attaching it to the fabric. To attach each functional agent to the cloth, the cloth is dipped in a chemical solution of the functional agent having an adhesive of synthetic resin to allow the agent to penetrate into the fibers of the cloth, and then dried to cure the adhesive. It is attached to the fabric.

[0003]

In the case of the above conventional technique, there is a problem that when the adhesive in the medicine hardens, the fabric also becomes stiff and the original texture of the fabric is impaired. In particular, when the chemical solution is attached to the cloth such as synthetic fiber where the chemical solution is hard to adhere or when the adhesive strength of the chemical solution is increased, it is necessary to increase the amount of the adhesive added, which causes a problem that the cloth becomes harder. .

The present invention has been made in view of the above-mentioned problems of the prior art, and provides a fabric to which a functional agent is firmly adhered without impairing the original texture of the fabric and a method for producing the same. With the goal.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a raw cloth which has been modified so as to enhance the hydrophilicity of the surface by subjecting it to an ultraviolet treatment for irradiating it with ultraviolet rays is provided with antibacterial properties, water repellency, water absorbency, anti-proof property. It is a fabric to which a functional agent imparting functions such as fusibility is attached by coating or dipping.

[0006] Furthermore, the functional agent to which an adhesive agent of an ultraviolet curable resin has been added is permeated into the base cloth, and the base cloth is irradiated with ultraviolet rays to cure the adhesive agent to adhere the functional agent. It is cloth.

Further, according to the present invention, the base cloth is subjected to an ultraviolet ray treatment to be modified so as to increase the hydrophilicity of the surface of the base cloth, and the surface of the base cloth is antibacterial, water-repellent, water-absorbing and anti-melting. Coating or dipping a chemical solution containing a functional agent that imparts each function such as sex to the functional agent,
It is a method of manufacturing a fabric to be dried.

Further, the above-mentioned functional agent is applied to the surface of the raw cloth and dried. Further, the functional agent is a method for producing a fabric in which different functional agents are attached on both sides of the woven fabric by coating or the like. The fabric of the present invention and the production method thereof are OH group with polarity on the cloth surface, COO
Group, a CO (O) H group is formed, the hydrophilicity of the surface of the woven fabric is enhanced, and the functional agent firmly adheres to the fibers of the woven fabric. Also, an adhesive made of UV curable resin is added to the functional chemicals to penetrate the base cloth, and then the base cloth is irradiated with ultraviolet rays to cure the adhesive and firmly attach the functional chemicals. is there.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show one embodiment of the present invention, in which a fabric 1 of this embodiment is shown.
In manufacturing No. 0, a raw cloth 12 made of synthetic fibers such as polyester, nylon and polypropylene used for sportswear and the like is set in an optical surface treatment device 16 and irradiated with ultraviolet rays. As the ultraviolet light source 18, a low pressure mercury lamp, a xenon lamp, an excimer lamp or the like is used. As a result, each fiber of the base cloth 12 is modified by the ultraviolet rays and its hydrophilicity is enhanced.

Then, the base cloth 12 is dipped in a container containing a chemical solution of a functional agent 14 having antibacterial properties, water repellency, water absorption, antifusability, etc., and the chemical solution is permeated into the base cloth 12. After that, it is dried, the solvent is removed, and the drug in the drug solution firmly adheres to the base cloth 12, and the cloth 10 treated with the drug is completed.

The functional drugs used here include the following. As the water / oil repellent functional agent, there is a nonionic fluoropolymer copolymer emulsion (for example, NK Guard FGN-700T manufactured by Nichika Chemical Co., Ltd.). How to use
For general processing, a 1 to 4% aqueous solution is used, and for durable processing, a crosslinking agent such as a melamine resin or a urethane crosslinking agent is used in an amount of 0.2 to 1.0%.

A self-emulsifying polyester resin (Nicepol PR-86 manufactured by Nika Kagaku Co., Ltd.) is used as a water-absorbing agent.
There is. This is also processed by emulsifying and dispersing in water and immersing the original cloth. Further, as an antibacterial functional agent, for example, chitin or chitosan can be permeated into the fibers of the base cloth, dried, and attached. Further, examples of the anti-fusing agent include anti-fusing coating agent manufactured by Environmental Chemistry Co., Ltd. The anti-fusing coating agent can be further firmly adhered by adding, for example, Dick Fine EM06 (manufactured by Dainippon Ink and Chemicals, Inc.) as an adhesive, and high-functionality and high-durability processing is possible.

In this embodiment, the raw fabric 12 is exposed to ultraviolet rays.
Since the surface of the fiber has been modified to have an increased hydrophilicity, the functional agent 14 can be attached to the fiber of the base cloth 12 with sufficient strength without using an adhesive. is there. Further, since the adhesive is not used, the fabric after the treatment does not become hard and the original texture of the fabric can be maintained. Further, even when it is necessary to use an adhesive or the like, the amount of the adhesive used can be small, and the cloth is not hardened.

Since the surface of the fabric 12 has an increased adhesive force, the chemical solution may be foamed to be applied to the surface of the chemical cloth to be adhered thereto or sprayed by a spray, in addition to the method of dipping the chemical cloth into the chemical solution. Then, a method of depositing and treating is also possible. According to this method, it is possible to use a small amount of chemical liquid, the fabric 10 can be dried quickly, and facilities such as a dryer can be reduced.

Further, the functional drug 1 is provided only on one side of the base cloth 12.
4 may be attached, or different functional agents 14a and 14b may be attached to both surfaces of the base cloth 12 as shown in FIG. For example, the water-repellent and oil-repellent agent 14a is attached to the front side of the cloth 10 for sports clothes, and the water-absorptive agent 14b is attached to the back side of the cloth 10 to form the agent-treated cloth 10 that absorbs sweat and repels rain and the like. can do.

[0016]

Embodiments of the present invention will be described below. Here, the surface of the synthetic fiber was irradiated with ultraviolet rays from a distance of 10 mm by a low-pressure mercury lamp, and then chitosan as an antibacterial functional agent was attached thereto. The wavelength of ultraviolet rays is
185 nm and 254 nm. Then, the chemical-treated fabric was repeatedly washed to perform an evaluation test of the chitosan adhesion ability. This evaluation test was performed by measuring the amount of attached chitosan by a color test method, and the results are shown in FIG. In FIG. 4, the vertical axis represents the relative color density and the horizontal axis represents the number of times of washing, and the degree of adherence and the residual ratio of the medicine are viewed from the relative color density.

From FIG. 4, it can be seen that the longer the UV irradiation time is, the more effective the amount of chitosan deposited immediately after the chemical treatment, that is, the number of times of washing is 0, is that the irradiation for 90 seconds is about twice as much as the irradiation for 10 seconds. The amount of attached chitosan was measured. As a result, it was found that UV irradiation is effective for improving the attachment ability of chitosan. Regarding the relationship between the number of washings and the UV irradiation time, the amount of chitosan adhered gradually decreases due to washing, but the amount of UV irradiation for 10 seconds decreases to 30% or less of the value of 0 times when the washing number is 50 times. However, about 50% remains after irradiation for 90 seconds. From this, longer UV irradiation is
It can be seen that it is also effective in increasing the durability of the chemical liquid.

The wavelength of ultraviolet rays, irradiation intensity, irradiation time, irradiation distance, etc. of the present invention can be determined experimentally as appropriate depending on the type of fiber. Also, the material of the fabric is synthetic fibers such as polyester and nylon,
It can be used for all natural fibers such as cotton and wool, which are spun alone or by blended spinning.

[0019]

INDUSTRIAL APPLICABILITY The chemical-treated fabric of the present invention is capable of adhering various functional chemicals to the fabric with sufficient strength, and the fabric becomes hard due to the influence of a large amount of adhesive for adhering the chemical. There is nothing wrong with the original texture of the fabric. Further, since a large effect can be obtained with a small amount of the drug, different drugs can be attached to the front and back of the fabric, and the functional drug can be used more effectively.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an ultraviolet irradiation step of a fabric according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view showing a chemical-treated fabric according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view of a fabric in which different chemicals are attached to the front and back of a raw fabric according to another embodiment of the present invention.

FIG. 4 is a graph showing the amount of attached chitosan as a functional drug measured by a color test method.

[Explanation of symbols]

 10 Cloth 12 Cloth 14 Functional Agent 16 Optical Surface Treatment Device

Claims (5)

[Claims] 1. A fabric in which a functional agent imparting a predetermined function is attached to a fiber which has been subjected to a treatment of being irradiated with ultraviolet rays and modified so as to enhance the hydrophilicity of the surface. 2. The fabric according to claim 1, wherein an adhesive made of an ultraviolet curable resin is added to the functional chemical and the adhesive is cured to adhere the functional chemical. 3. A raw cloth is subjected to a treatment of irradiating with ultraviolet rays to modify the surface of the raw cloth so as to increase its hydrophilicity, and a chemical solution containing a functional agent imparting a predetermined function is attached to the surface of the raw cloth. A method of making a fabric that is dried. 4. The method for producing a cloth according to claim 3, wherein the functional agent is applied to the surface of the raw cloth and dried. 5. The method for producing a fabric according to claim 3, wherein different functional agents are attached to both sides of the original fabric and the functional agent is dried.