JPH09273074A - Antimicrobial fiber and textile product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an antimicrobial fiber, resistant to washing hundreds of times, capable of keeping the skin clean and useful for preventing the skin from being infected due to scratches, etc., by carrying out the screen printing or stamp printing of a composition containing an optical semiconductor titania supporting silver and a resin thereon. SOLUTION: This antimicrobial fiber is obtained by carrying out the screen printing or stamp printing of a water-insoluble composition containing an optical semiconductor titania supporting silver and a resin thereon. In this case, the treatment thereof may be performed in the fiber state or the fiber may be formed into any form of a woven fabric, a knitted fabric or a nonwoven fabric and then treated. There is no fear of fouling the skin or causing adverse effects by elution of an antimicrobial component.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention sterilizes fungi attached to the surface of skin and fibers, for example, Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Salmonella, Candida, etc., and keeps the skin clean. The present invention relates to an antibacterial fiber useful for preventing skin infection due to scratches and the like, and a fiber product using the same.

[0002]

2. Description of the Related Art Conventionally, as fibers having antibacterial properties,
It is known that silver zeolite, chitosan, hinokitiol, mugwort extract, etc. are contained in natural or synthetic fibers by a method such as kneading or impregnation. The above-mentioned antibacterial material basically exerts its effect by being dissolved in water, but when it is worn as underwear, it does not elute to a sufficient extent to exhibit the necessary antibacterial property with sweat and humidity.
On the other hand, when the textile product is washed, the elution of the antibacterial material progresses at an accelerated rate, so that the antibacterial property may be lost by selecting 10 times or more.

[0003]

Therefore, the object of the present invention is to use an antibacterial agent which is basically insoluble in water, to realize an antibacterial action under a slight amount of humidity, and to be antibacterial even after washing several hundred times. It is an object of the present invention to provide an antibacterial fiber capable of maintaining the above, and a fiber product using the same.

[0004]

The present invention provides an antibacterial fiber screen-printed or stamp-printed with a composition containing silver-supported optical semiconductor titania and a resin. The present invention also provides a fiber product using the above antibacterial fiber,
For example, it provides clothing (particularly underwear), toiletries, bedding, socks, rubber gloves and the like.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION As the fibers used in the present invention,
Natural fibers such as cotton, wool and silk, semi-synthetic fibers such as rayon,
Examples thereof include synthetic fibers such as nylon, polyester, and acrylic, and cotton is particularly preferable. The antibacterial agent used in the present invention, optical semiconductor titania supporting silver, for example,
It can be produced by the method described in JP-A-3-8448, JP-A-1-268764, JP-A-1-317121 or the like.

The above antibacterial agent is mixed with a highly safe water-based pigment printing agent (components are acrylic acid ester copolymer, mineral terpene ammonium hydroxide, urea, water, etc.), pigment and epoxy resin to treat the fiber. . In this case, the treatment may be performed in a fiber state, or may be performed after being formed into a woven fabric, a knitted fabric, or a non-woven fabric. further,
A textile product having a predetermined shape may be formed from a woven cloth, a knitted cloth, or a non-woven cloth and then processed. Preferably, after being formed into any form of woven fabric, knitted fabric, or non-woven fabric, or further formed into a fiber product having a predetermined shape, the fiber surface is firmly fixed by screen printing or stamp printing. You can The printing composition is preferably 0.1 to 30% by weight of an antibacterial agent, 10 to 90% by weight of an aqueous pigment printing agent (components are acrylic ester copolymer, mineral terpene ammonium hydroxide, urea, water, etc.), It contains 0.1 to 10% by weight of pigment and 1 to 50% by weight of epoxy resin. The water-based pigment printing agent preferably contains 1 to 50% by weight of an acrylic acid ester copolymer, 1 to 30% by weight of mineral terpene ammonium hydroxide, 1 to 20% by weight of urea, and 20 to 80% by weight of water. The amount of the printing composition attached to 1 m ² of fibers is preferably 10 to 500 g, more preferably 30 to 150 g.

The optical semiconductor titania supporting silver, which is an antibacterial agent, used in the present invention forms positive and negative electrodes by efficiently absorbing light to form a kind of battery action, and is generated there. It is considered that microbes existing on the fibers and the skin surface are sterilized by the flow of the weak electric current.

Unlike the conventional products, the antibacterial fiber of the present invention does not elute an antibacterial component and exerts a bactericidal action. Therefore, there is no concern about skin contamination or side effects due to elution, and the antibacterial agent can be used on the fiber. Since it is firmly fixed to, it has excellent durability (washing resistance) and maintains the antibacterial effect even after several hundred washings.

[0009]

[Test Example] 10 parts by weight of optical semiconductor titania (ADI-1 manufactured by Ishihara Sangyo Co., Ltd. (supporting 0.2% by weight of silver)) as an antibacterial agent, water-based pigment printing agent (component is acrylic acid ester copolymer) Mixture of 20 parts by weight, mineral terpene ammonium hydroxide 5 parts by weight, urea 5 parts by weight, water 33 parts by weight) 63 parts by weight, pigment 1 part by weight, epoxy resin 26
Parts by weight were mixed to produce a printing composition. This composition was screen-printed to 100 g per 1 m ^{2 of} cotton cloth. Underwear (A) was sewn using the cotton cloth of the present invention in which an antibacterial agent was screen-printed. As a control, an undergarment (B) was sewn using a cotton cloth not treated with an antibacterial agent. Subjects (5) who complain of pruritus skin were made to wear (A) and (B) for one month, respectively, and the following items were examined. (1) Degree of reduction of pruritus senile skin (2) Degree of secondary infection prevention by scratching (3) Tactile sensation by wearing (4) Washing resistance results are shown in Table 1.

[0010]

[Table 1] Pruritus degree Purulent degree Wear feeling Wash resistance Patient Age Gender A B A B A B A B A B 1 76 Male ○ × ○ × △ × ○ ○ 2 82 Male ○ × ○ × △ × ○ ○ 3 51 Male ○ × ○ × ○ × ○ ○ 4 78 Female ○ × ○ × △ × ○ ○ 5 76 Female ○ × △ × ○ × ○ ○ 

Degree of pruritus ◯: Pruritus was slightly removed. X: Pruritus was not removed at all. Degree of purulence ○: Not purulent. Δ: Somewhat purulent. X: Purified. Feeling of wearing ○: Excellent. Δ: Good X: Normal. Washing resistance ○: There was no peeling in the printed part. X: Peeling was observed in the printed part. It can be seen that the underwear (A) of the present invention reduces pruritus and purulence and is excellent in wearing feeling.

[0012]

INDUSTRIAL APPLICABILITY A textile product using the antibacterial fiber of the present invention is a screen-printed antibacterial agent which effectively sterilizes bacteria on the fiber and the skin surface, thereby improving itching and purulence of the skin in a short period of time. To do. Therefore, symptoms such as pruritus dermatitis, atopic dermatitis, and the propagation of various bacteria caused by sweating in sports etc. are caused by using a fiber product (underwear, socks, etc.) using the antibacterial fiber of the present invention. It is also possible to reduce the heat generation, and it is possible to expect a heat-retaining effect due to the far-infrared effect of the optical semiconductor itself, and it is possible to activate the skin.

Claims (6)

[Claims] 1. An antibacterial fiber obtained by screen-printing or stamp-printing a composition containing silver-supported optical semiconductor titania and a resin. 2. A garment containing the antibacterial fiber according to claim 1. 3. A toiletry article containing the antibacterial fiber according to claim 1. 4. A bedding comprising the antibacterial fiber according to claim 1. 5. A sock containing the antibacterial fiber according to claim 1. 6. A rubber glove containing the antibacterial fiber according to claim 1.