JP2002038373A - Antibacterial fiber - Google Patents

Abstract

(57) [Abstract] Antimicrobial fiber [Purpose] To provide a processing method for imparting antibacterial performance with excellent washing durability by a simple process without containing heavy metals or halogen atoms in the fiber. [Constitution] Polyhexamethylene guanidine salt is added to fibers in an amount of 0.1%.
An antibacterial fiber obtained by treating 001 to 10% by weight.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antibacterial fiber containing no heavy metals and halogen atoms, a method for producing the same, and an antibacterial agent for the fiber.

[0002]

2. Description of the Related Art In recent years, antibacterial fibers have been widely used in clothing such as socks and underwear, carpets and the like. Most of these substances contain a halogen atom. However, a series of recent demands for environmental problems have demanded the development of a drug containing no heavy metal or halogen atom.

DISCLOSURE OF THE INVENTION The present invention has been made in view of such circumstances, and has an antibacterial property having excellent washing durability by a simple process without containing heavy metals or halogen atoms in fibers. It is intended to obtain a processing method to be applied.

[0003]

The present invention employs the following technical means to achieve the above object.

[0004] That is, the first technical means is that an antibacterial agent is characterized by using a drug containing no heavy metal and no halogen atom as an active ingredient.

The second technical means is characterized by an antibacterial fiber. The antibacterial agent is fixed on the fiber, or the antibacterial agent is fixed on the fiber surface with a water-resistant binder resin. It is that you are.

The third technical means is characterized by a method for producing an antibacterial fiber, which comprises mixing the antibacterial agent with a water-resistant binder resin and fixing it on the surface of the spun fiber. Manufacturing.

[0007] The fourth technical means is characterized by an antibacterial processed body, and the antibacterial processed body is made of a fabric processed with the antibacterial agent.

[0008]

In general, polyhexamethylene biguanidine hydrochloride, which is widely used, has excellent antibacterial and antifungal activities, and thus exhibits a broad antibacterial spectrum against various fine substances, but contains halogen atoms. are doing.

The antibacterial agent of the present invention, ie, polyhexamethylene guanidine salt, has the same antibacterial and antifungal activity as polyhexamethylene biguanidine hydrochloride.

Moreover, the antibacterial agent of the present invention does not contain a heavy metal and a halogen atom, so that the safety of the human body is further improved, and the contents are environmentally friendly.

The compound of the present invention can be processed into various materials by a very simple treatment.

Hereinafter, the antibacterial agent, the antibacterial fiber using the antibacterial agent and the method for producing the same according to the present invention will be described in detail.

In the present invention, the fiber is treated with a polyhexamethylene guanidine salt. The polyhexamethylene guanidine salt used here includes nitrate, formate, acetate, and the like.
Benzoate, dehydroacetate, propionate, gluconate, sorbate, phosphate, fumarate, maleate, carbonate, sulfate or paratoluenesulfonate.

The antibacterial agent according to the present invention has excellent antibacterial and antifungal properties even when fibers are treated alone, but further durability can be obtained by using a water-resistant binder resin in combination. .

The water-resistant binder resin used in the present invention is not particularly limited. Specifically, self-crosslinkable acrylic resin, methacrylic resin, urethane resin, silicone resin, glyoxal resin, vinyl acetate resin, butadiene resin, Melamine resin, urea resin, epoxy resin, acrylic / silicone copolymer resin, ethylene / vinyl acetate copolymer resin, isobutylene / maleic anhydride copolymer resin, ethylene / styrene / acrylate / methacrylate copolymer resin, etc. A mixture of more than one species can be used.

The fibers to which the antimicrobial agent of the present invention is fixed with a water-resistant binder resin include natural fibers such as cotton, hemp, wool, silk, polyamide, polyester, polyvinyl alcohol, acryl, vinylidene, polyacetate, polyurethane, and polyethylene. , Synthetic fibers such as polypropylene,
Semi-synthetic fibers such as viscose rayon, and blended products of these materials.

The antibacterial fiber of the present invention is not limited to the above-mentioned embodiment, and may be one produced by a usual production method in which the above-mentioned antibacterial agent is mixed at the time of spinning a fiber material and produced. Of course it is good.

The antibacterial fiber according to the present invention is further processed to be formed into various fabrics, for example, interior relations such as sofas, curtains, valleys, futons, blankets, and the like.
It is configured as beddings such as pillows and sheets, general clothing such as clothes and socks, stockings, automobile interiors, and antibacterial processed bodies such as filters (nonwoven fabrics) for air purifiers and air conditioners.

The method of treating the fiber with the antibacterial agent of the present invention is not particularly limited, but a method of immersing the fiber in a solution of the antibacterial agent is usually employed. At this time, the concentration of the antibacterial agent in the treatment liquid is 0.001 to 10% of the fiber weight,
The processing time is about 1 to 10 minutes.

Regarding the treatment of the antibacterial agent into fibers,
It is preferable to simultaneously treat the water-resistant binder resin,
Usually, a treatment method in which a water-resistant binder resin is added to a solution of an antibacterial agent in advance and the fibers are immersed in the solution is used. Although the treatment concentration and treatment time of the water-resistant binder resin vary depending on the type of the water-resistant binder resin and the like, generally, the concentration of the resin component in the treatment liquid is 1 to 10% of the fiber weight.
And the processing time is about 1 to 10 minutes.

By performing a heat treatment after the above treatment, the washing resistance, that is, the effect of preventing the deterioration of the antibacterial property due to the washing can be enhanced. Heat treatment usually involves 100
It is carried out by maintaining the temperature at from 0 to 170 ° C for from 0.5 to 3 minutes.

The antibacterial fiber of the present invention is Staphyloc.
Staphyloco such as occus aureus
E of the genus ccus, Escherichia coli, etc.
genus scherichia, Klebsiella pn
genus Klebsiella such as Eumoniaes, Ps
Pseudomonas aeruginosa etc.
It has high antibacterial activity against bacteria such as genus udomonas.

[0023]

EXAMPLES Next, the present invention will be described more specifically with reference to examples. The measurement and evaluation of the performance of the fibers in the examples were performed by the following methods.

(1) Antibacterial activity The antibacterial activity test method (J
In accordance with IS L-1902), the following test bacteria were suspended in a sterilized nutri end broth liquid medium, 0.2 ml of this solution was ingested on a 0.2 g test piece, and the temperature was 37 ° C. for 18 hours. After culturing, the cells were taken out, the number of viable bacteria on the test piece before and after culturing was measured, the bacteriostatic activity value was calculated by the following formula, and the antibacterial property was evaluated. Bacteriostatic activity value of 2.2
In the above, it is recognized that there is antibacterial activity, and a larger value indicates better antibacterial activity. Test bacteria Use the following strains as appropriate. Staphylococcus aureus ATCC 6538P Escherichia coli IFO 3301 Klebsiella pneumoniaes ATCC 4352

Calculation formula Calculation of activity value Average value of the number of bacteria recovered immediately after inoculation of the standard cloth; [A] Average value of the number of bacteria recovered after 18 hours of cultivation of the standard cloth; [B] 18-hour cultivation of the work cloth [C] Bacteriostatic activity value = LogB-LogC

(2) Repeated washing test According to JIS L-0217 103 method, detergent (JA)
FET detergent) Wash with 0.133% by weight of washing liquid 5
The washing was performed for 10 cycles, with 2 minutes and 2 minutes and 2 rinses as one cycle. Drying was performed indoors.

[0027]

Example 1 # 40 cotton broad was immersed in a 0.25% aqueous solution of polyhexamethylene guanidine phosphate at room temperature for 2 minutes, squeezed with a mangle to a squeezing ratio of 80%, and then 105%.
Drying at 5 ° C. for 5 minutes gave the antibacterial fiber of the present invention.

[0028]

Example 2 Into a 0.25% aqueous solution of polyhexamethylene guanidine phosphate containing 5% of a self-crosslinking acrylic resin,
# 40 cotton broad was dipped at room temperature for 1 minute, squeezed with a mangle to a squeezing ratio of 80%, and then dried at 105 ° C for 5 minutes.
Further, heat treatment was performed at 150 ° C. for 2 minutes to obtain the antibacterial fiber of the present invention.

[0029]

Example 3 A polyester tropical was immersed in a 0.3% aqueous solution of polyhexamethylene guanidine phosphate containing 5% of a self-crosslinking acrylic resin at room temperature for 3 minutes, squeezed with a mangle to a squeezing ratio of 67%, and then at 105 ° C. For 7 minutes. Further, heat treatment was performed at 150 ° C. for 2 minutes to obtain the antibacterial fiber of the present invention.

[0030]

Comparative Example 1 Polyhexamethylene biguanidine hydrochloride 2
# 40 cotton broad is immersed in a 1.25% aqueous solution of a 0% aqueous solution (Proxel IB (manufactured by Zeneca Corporation)) at room temperature for 2 minutes, squeezed with a mangle to a squeezing ratio of 80%, and then squeezed to 105%.
Dry at 5 ° C. for 5 minutes.

[0031]

Comparative Example 2 A 1.25% aqueous solution of a 20% aqueous solution of polyhexamethylene biguanidine hydrochloride (Proxel IB (manufactured by Zeneca Corporation)) containing 5% of a self-crosslinking acrylic resin was
# 40 cotton broad was immersed for 1 minute at room temperature, squeezed with a mangle to a pattern of 80%, and then dried at 105 ° C. for 5 minutes.
Further, heat treatment was performed at 150 ° C. for 2 minutes.

[0032]

Comparative Example 3 Polyester tropical was immersed in a 1.5% aqueous solution of a 20% aqueous solution of polyhexamethylene biguanidine hydrochloride (Proxel IB (manufactured by Zeneca Corporation)) containing 5% of a self-crosslinking acrylic resin at room temperature for 3 minutes. Then, it was squeezed with a mangle to a squeezing ratio of 67%, and then dried at 105 ° C. for 7 minutes. Further, heat treatment was performed at 150 ° C. for 2 minutes.

The antibacterial performance of the processed fabric of the present invention was evaluated by using Staphylococcus aure as test cells.
us (ATCC 6538P), Escherich
ia coli (IFO 3301), Klebsie
lla pneumoniaes (ATCC 435
It measured using 2) and the result was combined and shown in Table 1.

[0034]

[Table 1]

As is clear from Table 1, the processed woven fabric of the present invention was found to have a sufficient antibacterial effect against all three bacteria.

[0035]

As described above in detail, the antibacterial agent according to the present invention exhibits excellent antibacterial and antifungal activities equivalent to those of conventional antibacterial agents without containing heavy metals or halogen atoms. Therefore, it can be safely used for interior relations, bedding, general clothing, automobile interior parts, and the like.

Continued on the front page (72) Inventor Song Won Song Republic of Korea, Taejong, Yusong, Joy Min Dong 462-5, Sejong Apartment 106-1005 (72) Inventor Ju Hong Shin South Korea, Taejong, Yu Song, Joy Min Dong 462-5, Sejong Apartment 108-906 (72) Inventor Koji Kitamura 3-1-1-11 Kamishinjo, Higashiyodogawa-ku, Osaka-shi, Osaka Inside Daiwa Chemical Industry Co., Ltd. (72) Inventor Toru Ohtsuki 3-1-1, Kamishinjo, Higashiyodogawa-ku, Osaka-shi, Osaka Daiwa Chemical Industry Co., Ltd. (72) Inventor Tomiyoshi Suyama 3-1-1, Kamishinjo, Higashiyodogawa-ku, Osaka-shi, Osaka F-term (reference) 4L033 AB01 AC10 AC15 BA81 CA57

Claims (6)

[Claims] A polyhexamethylene guanidine salt represented by the following chemical formula 1 is treated: Antimicrobial fiber characterized by being free of heavy metals and halogen atoms. (Where n is an integer of 1 or more;
A is nitric acid, formic acid, acetic acid, benzoic acid, dehydroacetic acid, propionic acid, gluconic acid, sorbic acid, phosphoric acid, fumaric acid,
Maleic acid, carbonic acid, sulfuric acid or paratoluenesulfonic acid. ) 2. The antibacterial fiber according to claim 1, wherein the compound of the formula (1) is treated into a water-resistant binder resin and fibers. 3. The antibacterial fiber according to claim 1, wherein the compound of the formula (1) is treated into a water-resistant binder resin and a fiber, and heat-treated. 4. The method for producing antibacterial fiber according to claim 1, wherein the compound of formula 1 is mixed with a water-resistant binder resin and fixed on the surface of the spun fiber. 5. An antibacterial processed product comprising a fabric processed with the antibacterial agent represented by Chemical Formula 1. 6. An antibacterial agent for fibers containing the compound of claim 1 as an active ingredient.