Functional fiber method
The functional fiber method is to add an anti-mite finishing agent to the fiber-forming polymer and spin it into fibers with anti-mite effects, or chemically modify existing fibers to make them anti-mite fibers, and then use Anti-mite fibers are blended with other fibers to form anti-mite woven fabrics or non-woven fabrics. There are currently two main ways to use this method:
1. Modified acrylic anti-mite fiber made by grafting copper ions on acrylic fiber through chemical reaction and connecting X-GC golden C19H24N3+O group; or grafting on acrylic fiber through chemical reaction in the same way Copper ions are added to the X-GB blue C20H24N3+O group to produce modified fibers that are mixed with other fibers and processed through processes such as opening and laying to form acrylic non-woven fabrics with anti-mite effects.
2. A masterbatch obtained by mixing an ethylene-acetate copolymer containing 0.1% to 0.3% of the anti-mite finishing agent copper diphenyl and a polypropylene polymer in a ratio of 84 to 16. This masterbatch is then mixed with a polypropylene-based polymer to obtain a polymer constituting the skin layer component. In addition, polyethylene terephthalate is used as the core of the fiber, and together with the polymer constituting the skin layer, it is melted and compositely spun, and then heat-treated at 125°C for 20 minutes to obtain a composite fiber with anti-mite effect.
In addition, in foreign countries, acrylic fiber is used as the base material. When it is in a gel state, various anti-mite finishing agents are applied to it, so that the anti-mite finishing agent can enter under the surface of the fiber to improve the anti-mite effect of the fiber; domestic use has passed Specific anti-mite agents, after special treatment, are added to the acrylic spinning stock solution for blending, and then spun, dried, and shaped to produce acrylic fibers with good anti-mite effects; there are also self-developed anti-mite agents, Made of anti-mite and anti-bacterial viscose filament with dual anti-mite and anti-bacterial effects. This kind of filament is very effective, with a repellent rate of 99.9% against mites and an antibacterial rate of over 99.9%. The fiber also has good durability and resistance to post-processing.
According to relevant information, anti-mite textile materials or products made from functional fibers, whether abroad or domestically, are still in the research and testing stage and have not yet achieved industrial production. Research and testing need to be continued to achieve industrial production as soon as possible.
Anti-mite fabric finishing method
The anti-mite fabric finishing method is to use conventional fabric dyeing and finishing processing techniques, such as spraying, padding, coating and other methods, to treat the fabric in the anti-mite finishing solution to produce fabrics with anti-mite effects.
The finishing method is to pad the pure cotton fabric made after desizing, scouring, bleaching and mercerizing in the prepared anti-mite finishing liquid with a liquid carrying rate of 80%, and then dry it at 120°C for 2 minutes. Then bake it at 160°C for 3 minutes to get a pure cotton fabric with good anti-mite effect; or use a polyester fabric with a liquid carrying rate of 80%, pad it in an anti-mite finishing solution, and then dry it at 100°C. , and then heat treated at 180°C for 1~2 minutes to improve the anti-mite effect of polyester fabrics.
Anti-mite finishing of fabrics is an effective method currently used at home and abroad. The key to finishing is the anti-mite finishing agent used. Currently used anti-mite finishing agents include: borneol derivatives, such as Markamid 1-20, isobornyl cyanothioacetate, IBTA, etc.; deoxyacetic acid, such as AnincenCBP; N,N-diethyl metaformamide; aromatic carboxylic acid Acid ester series, such as benzene dicarboxylic acid, dimethyl ester, benzene formate series, etc.; diphenyl ether series; phthalimide series; pyrethroids, etc.
Since anti-mite finishing on ordinary fabrics generally requires caustic soda scouring, chlorine and oxygen double bleaching, strong alkali mercerization and other pre-treatments, this requires that the anti-mite finishing agent used has acid and alkali resistance, oxidation resistance and resistance to Restoration performance, otherwise, it will directly affect the anti-mite effect of the anti-mite fabric.
Anti-mite fabrics are mainly used to make bedding and are in direct contact with the human body. It is absolutely necessary to ensure that the anti-mite finishing agents used are safe for the human body and will not have any impact on the physiological functions of the human body. At the same time, it is required that no mite-proof fabrics are produced during the processing. Toxic compounds, harmful to operators.
Mites exist in every corner of people’s living environment and are a strong allergen that can cause harm to people’s lives and health. According to monitoring by relevant departments, dust mites are mostly distributed in carpets in residents’ homes, followed by quilts, mattresses, pillows, floors, sofas, etc. There are 100,000 to 10 million mites in a mattress that has been used for many years. In a pillow that has been used for two years, 10% of its weight is dead dust mites and dust mite feces. Dust mites are very harmful to human health. Can spread viruses and bacteria, causing bronchial asthma, rhinitis, dermatitis, folliculitis, scabies and other diseases.
As people’s living standards continue to improve, they pay more attention to the living environment in which they live. The use of textiles with anti-mite and anti-bacterial functions can not only suppress and repel mites, effectively prevent various diseases related to dust mites, but also have anti-bacterial and anti-bacterial properties. The reproduction of bacteria achieves the purpose of improving the living environment.
At present, there are two main processing methods for anti-mite fabrics at home and abroad: functional fiber method and mite finishing method.
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