KR20030081228A - Method for preparing antibacterial texture - Google Patents

Abstract

PURPOSE: Provided is a method of manufacturing an antimicrobial fiber which involves excellent antimicrobial capacity, wash resistance and bodily safety, and economic production cost. CONSTITUTION: The method of manufacturing an antimicrobial fiber comprises the steps of: preparing an antimicrobial composition with 5-15 wt.% of quarternized chitosan, 3-10 wt.% of polybasic acid including citric acid, 1-5 wt.% of di,tri-glycidyl ether compound including ethyleneglycol diglycidyl ether, 1-5 wt.% of surface active agent and 65-90 wt.% of water; and dipping the target fiber into 2-3 wt.% of the antimicrobial composition at 30-50 deg.C for 5-30 minutes, and drying it.

Description

Method for preparing antibacterial texture

The present invention relates to a method for producing an antibacterial fiber having excellent washing resistance, and more particularly, the fiber is quaternized with chitosan, which is a natural substance, and treated with an antimicrobial composition having enhanced cationic properties. It relates to a method of manufacturing.

Microorganisms are harmful to humans, so the damage from microorganisms to food, housing, clothing industry products is serious. Microorganisms such as bacteria and fungi are not only very diverse, but are widely distributed in the natural world such as soil, air, water, and seawater, and can grow and grow at any time when growth conditions are appropriate.

In particular, in recent years, infections in hospitals caused by various resistant bacteria (MRSA, VRSE, VRE), bedsores caused by antibiotic-resistant Pseudomonas aeruginosa infection, Escherichia coli 0-157, Vibrio, Salmonella, Canfilobacta and Staphylococcus aureus Caused by food poisoning, pneumonia caused by Legionella that grows in cooling water in the cooling towers on building roofs, pediatric asthma caused by mold spores in houses, accidents caused by microbial contamination in manufacturing lines of medicines and foods, industrial products, Many problems are caused by harmful microorganisms such as degradation due to microbial contamination of residential wood, cosmetics and the like.

Therefore, microbiological research to prevent human diseases and animals and plants caused by microorganisms has been conducted for a long time, but it is recognized that the damage caused by microorganisms is serious in fiber, plastic, paper, wood, metal, glass, etc. Research on countermeasures has been actively conducted recently.

In the textile products that are closest to the human body in our living environment, microorganisms inhabit and multiply with the secretions of the human body, causing harm to the human body or causing odors, and degrading and contaminating the textile products, resulting in the loss of product value. Antimicrobial processing of fibers for hygienic preservation to suppress the has been attempted.

There are many types of antimicrobial agents used to prevent the growth of microorganisms in textile products. In general, antimicrobial agents used in textiles include compounds containing metal ions such as organic mercury compounds, organic chromic acid copper compounds, organic copper compounds, organic zinc compounds, other organic metal compounds, chlorine phenyl ethers, and organic nitrogen compounds. Compounds, organosilicon quaternary ammonium and the like were mainly used. Of these, organometallic compounds are generally used for textile processing because of their strong sterilization but high toxicity.

Recently, a method of providing excellent antimicrobial activity to the human body, having no problem of environmental pollution and changing the use of natural materials or the fiber itself has been studied. However, these natural materials have a disadvantage in that the molecular weight is large, so that they are hardly attached or absorbed to the fiber, and thus the antibacterial activity is lost as the number of washing increases. In this respect, the antimicrobial composition containing chitosan is a natural polymer that is non-toxic and has excellent safety for the human body and has the advantage of being able to be used as it is without damaging the subtle appearance of the fiber material or losing the properties or characteristics of the material. There are many production of textile products treated with antibacterial agents containing chitosan. However, the fiber treated with chitosan is not only hard to expect strong antimicrobial properties because the cationic property of chitosan is weakened in a dry state, but also loses antimicrobial activity as the number of washing increases. In addition, due to the nature of chitosan itself has the disadvantage of low antifungal properties.

The present invention has been developed excellent antimicrobial fiber washing resistance and excellent antibacterial even in a dry state.

The present inventors have diligently studied to solve the problems of the conventional methods as described above, and based on the quaternized chitosan in order to increase the antibacterial and antifungal properties of chitosan, diglycidyl or Processed antimicrobial composition containing triglycidyl group and polyhydric acid such as citric acid, quaternary chitosan is absorbed and attached to fiber to show good antibacterial ability, excellent washing resistance, high safety for human body and economical antibacterial fiber production The method was completed.

An object of the present invention is to provide a method for producing antimicrobial fibers having excellent washing resistance and antimicrobial activity by modifying the fibers and antibacterial treatment.

Hereinafter, the present invention will be described in detail.

The present invention is 5 to 15% by weight of quaternized chitosan, 3 to 10% by weight of polyvalent acids such as citric acid, 1 to 5% by weight of di, triglycidyl ether compounds such as ethylene glycol diglycidyl ether, and 1 to 5% by weight of surfactant % And the remainder is 65 to 90% by weight of water, which is characterized in that the composition is dipped by drying the fiber for 5 to 30 minutes at a temperature of 30 to 50 ° C. in a composition of 2 to 3% by weight (owf). It is a method for producing antibacterial fibers having excellent washing resistance.

When the fiber is treated according to the method of the present invention, the diglycidyl group or the citric acid is immobilized in the functional period of the quaternary chitosan and the fiber, so that the antimicrobial agent is well bonded to the fiber, so that the antimicrobial activity is increased and the sanitary fiber with excellent washing resistance can be produced. Can be.

According to the method of the present invention, a high amount of antimicrobial activity can be obtained by treating a small amount of antimicrobial agent, which is not only economical, but also excellent in washing resistance and increased safety for the human body.

The quaternary chitosan used in the present invention was prepared by Korean Patent 100328335.

The diglycidyl and triclicityl group-containing compounds used in the present invention are ethylene glycol using (poly) ethylene glycol diglycidyl ether, (poly) propylene glycol diglycidyl ether, and (poly) propylene glycol triglycidyl ether. And a compound having an added mole number of propylene glycol of 1 to 20, and one of them may be selected or a mixture of the two may be used.

Citric acid, tartaric acid, maleic acid, polyacrylic acid and the like can be used as the polyacid used in the present invention, and double citric acid or tartaric acid may be used.

Hereinafter, the present invention will be described in more detail with reference to Examples.

The antimicrobial activity shown in the following examples was followed by the Shake Flask Method (KS K0693) and the Halo Test (KS K0692) test method. Washing method (JISL) -0844.

Example 1

The bath ratio of the solution consisting of 5% by weight of quaternized chitosan, 3% by citric acid, 2% by weight of ethylene glycol diglycidyl ether, 1% by weight of surfactant, 89% by weight of water, (owf) is 1:10. It was. Cotton fiber was immersed in this solution for 10 minutes at 40 ℃ and prepared for 5 minutes at 100 ℃.

The antimicrobial activity was tested by the antibacterial cotton fiber according to the shake flask method.

After washing in accordance with JISL-0844, the antibacterial activity after washing was tested.

The results are shown in Table 1, respectively.

TABLE 1

Example 2

Except that 1% by weight of the antimicrobial composition was used according to the method of Example 1 treated with an antimicrobial composition to prepare an antimicrobial fiber.

The antibacterial activity test after washing and the antimicrobial activity test after washing were performed on the obtained fiber, and the result is shown in Table 1.

Example 3

The antimicrobial composition of Example 1 was treated in the same manner as in Example 1 except that ethylene glycol diglycidyl ether was subtracted.

The antibacterial activity test after washing and the antibacterial activity test after washing were performed on the obtained fiber, and the results are shown in Table 1.

The antimicrobial treatment method of the fiber according to the present invention was superior to the antimicrobial effect by treating the quaternized chitosan with di, triglyciter and polyacid, and the antimicrobial effect in the treatment with the composition according to the present invention when treated with chitosan only. Was better and the antibacterial effect was maintained even after washing.

Claims (3)

It contains 5 to 15% by weight of quaternized chitosan, 3 to 10% by weight of polyvalent acid such as citric acid, 1 to 5% by weight of di, triglycidyl ether compound such as ethylene glycol diglycidyl ether, and 1 to 5% by weight of surfactant And the remainder is excellent washing resistance, characterized in that to dry the fiber by immersing the fiber for 5 to 30 minutes at a temperature of 30 to 50 ℃ in the composition 2 to 3% by weight (owf,) consisting of 65 to 90% by weight of water Manufacturing method of antibacterial fiber The diglycidyl and triclycidyl group-containing compounds used in claim 1 are (poly) ethylene glycol diglycidyl ether, (poly) propylene glycol diglycidyl ether, (poly) propylene glycol triglycidyl ether, and ethylene glycol And a compound having an added mole number of 1 to 20 of propylene glycol, wherein one of them is selected or a mixture of the two is used. As a polyacid used in claim 1, citric acid, tartaric acid, maleic acid, and polyacrylic acid are used.