JPS6115188B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a sanitary processing method for textile products, and its purpose is to provide a sanitary processing method for various textile products that is highly durable and safe and harmless to the human body. Conventionally, fiber materials have been damaged by the action of microorganisms, causing discoloration, discoloration, embrittlement, etc., and in some cases, reducing the thickness and weight of textile products. In addition, microorganisms can easily grow in underwear and socks that have absorbed sweat while being worn, and this can cause decomposition and fermentation, producing ammonia and other substances, emitting a bad odor, and irritating the skin and causing inflammation. There is. For this reason, there has been a long-standing need for textile materials to be treated with antibacterial and antifungal treatments. The most commonly used compounds are organic mercury compounds, organic chlorine compounds, organic tin compounds, and
These include phenolic compounds. However, recently, the use of organometallic compounds has been restricted due to hygiene and safety concerns, and depending on the concentration of the compound, it can cause skin damage, so there are currently very few compounds that can be used effectively in this direction. . As a desirable sanitary finishing agent, the agent once retained in textile products does not cause any irritation or other damage to the human body, remains unremoved even after repeated cleaning, and is sufficiently effective against microorganisms. It is a processing agent that exhibits bactericidal efficacy. Quaternary ammonium salts are well known as one of the highly safe disinfectants and are used as disinfectants in hospitals and cafeterias, but among these, quaternary ammonium compounds with alkoxy/silane groups are Since it chemically adsorbs to cotton, polyester, and other natural fibers and synthetic fibers, it can be used for sanitary processing to prevent mold and bacteria from washing-resistant fibers. That is, When compounds such as tri, methoxy, silyl, propyl, dimethyl, alkyl, ammonium, and chloride are dispersed in water, the methoxy groups undergo decomposition, and at the same time, the oxygen atoms are covalently bonded to the fiber surface, creating a wash-resistant material. Forms a film of quaternary ammonium salt. However, according to experiments conducted by the present inventors, these alkoxy silane compounds may cause skin damage when treated alone. As a result of intensive research, the present inventors discovered that by adding a fatty acid with bactericidal properties to the above compound and forming a kind of complex with a cationic activator such as a quaternary ammonium salt, it was possible to improve the original bactericidal properties. The present invention has been completed by successfully performing sanitary processing that eliminates skin disorders without sacrificing the skin's properties and has excellent washing resistance. That is, the gist of the present invention is tri-alkoxy-silyl-propyl-dimethyl-alkyl-ammonium-chloride (however, the alkyl group has 6 to 6 carbon atoms)
22) and a monoethylene fatty acid having a carbon number of 10 to 18 is dispersed in water using a surfactant, and the textile product is treated with the liquid. It is important that the fatty acid used in the present invention is a monoethylene fatty acid having 10 to 18 carbon atoms. Fatty acids in this range, such as undecylenic acid, have a bactericidal effect against Gram-positive bacteria, Gram-negative bacteria, filamentous fungi, etc., and have a synergistic effect by forming a complex with alkoxysilyl quaternary ammonium salts. It can be demonstrated. It has been confirmed in several literatures that these cationic surfactants and anionic surfactants form a complex. However, in order to disperse fatty acids in water, it is important to emulsify and disperse them using a nonionic surfactant that does not cause a chemical reaction with the ammonium salt. In the present invention, usually 60 to 80% of tri-alkoxy-silyl-propyl-dimethyl-alkyl-ammonium chloride (the same below weight),
Mix 10 to 20% of monoethylene fatty acid and 10 to 20% of nonionic surfactant, make the mixture into a dilute dispersion in water with a concentration of about 1%, and immediately immerse the textile product to be treated in this. After being left for 1 to 2 hours to be sufficiently adsorbed onto the fiber surface, it is dehydrated and dried. As a result, textile products can be processed with excellent washing resistance and sanitary processing. The treatment means may be determined as necessary, such as impregnation other than immersion, coating, spraying, direct addition, etc. Below, typical examples and comparative examples will be given to further clarify the structure and effects of the present invention. Example trimethoxysilyl propyl dimethyl oleyl ammonium chloride
80 parts by weight Undecylenic acid 10 parts by weight Tween 80 (nonionic surfactant manufactured by Atlas Powder) 10 Disperse 10 g of the above mixture in 1 water, immerse 100 g of a blended fabric of 40 cotton and 60 polyester in this, and stir at room temperature. After leaving for 60 minutes, dehydrate and dry (100℃)
A treated cloth was obtained. This treated fabric was safe and harmless to the human body without causing skin damage, and its antibacterial effect and washing resistance, which will be described later, were observed. Comparative example 1 8 parts by weight Water 1000 〃 Blended fabric of 40% cotton and 60% polyester in the above mixture
100 parts by weight was immersed, left at room temperature for 60 minutes, dehydrated, and dried (100°C). Comparative example 2 CH ₂ :CH(CH ₂ ) ₃ COOH undecylenic acid
1 part by weight Tween80 (nonionic surfactant manufactured by Atlas Powder) 1 Water 1000% Mixed fabric of 40% cotton and 60% polyester in the above mixture
100 parts by weight was immersed, left at room temperature for 60 minutes, dehydrated, and dried (100°C). The results of antibacterial tests conducted on the treated fabrics shown in the above Examples and Comparative Examples in the following manner are shown in the table below.
It was as shown in. Antibacterial test bacteria Staphylococcus aureus and Escherichia coli were mixed with broth culture solution (10 g of peptone, 5 g of meat extract, 5 g of salt and 100 g of distilled water).
ml and cultured for 24 hours (37°C) at pH 6.8) as the test bacteria. Sterilized agar medium (1.5% agar in broth culture medium)
Addition) 0.1 ml of the test bacterial solution was mixed with 15 ml, poured into a Petri dish, and left to solidify at room temperature. Sample cloth was washed with 20 g of commercially available detergent (Zab, manufactured by Kao Soap Co., Ltd.).
Wash in an electric washing machine for 10 minutes (25℃) using the solution.
After washing with water and drying (100℃), use a sterile condition with a diameter of 20 mm.
A sample was cut out into a mm-sized circle. Test method Gently place a circular sample on the surface of the medium using tweezers, and press the sample piece firmly against the medium, being careful not to damage the surface of the medium. After culturing at 37°C for 24 hours, the sample piece was gently peeled off, and the growth status of the bacteria on the medium underneath was observed and recorded. No bacteria at all (-) Some bacteria (±) Bacteria present (+)

【table】

[Table] From the above results, it can be seen that the textile processing method of the present invention has an excellent antibacterial effect and wash resistance.

Claims (1)

[Claims] 1 Tri-alkoxy-silyl-propyl-dimethyl-alkyl-ammonium-chloride (alkyl group has 6 to 22 carbon atoms) and 10 to 18 carbon atoms
1. A method for sanitary processing of textile products, which comprises dispersing a complex with monoethylene fatty acid in water using a surfactant, and treating the textile product with the dispersion.