Preparation method of anti-mite and antibacterial regenerative cellulosic fibers

Abstract

The invention provides a preparation method of anti-mite and antibacterial regenerative cellulosic fibers. The preparation method comprises the following steps: mixing and then microencapsulating neem oil and photocatalyst assistant anatase nano TiO2, dispersing obtained microcapsules, spinning with a viscose spinning solution, and preparing the regenerative cellulosic fibers with a mite resistance function. According to the preparation method, viscose fibers obtained by spinning in the spinning solution added with the microcapsules containing azadirachtin and nano TiO2 have a better mite expelling and bacterium inhibition effect; the compatibility is higher, and a better synergistic effect can be achieved.

Description

technical field [0001] The invention belongs to the technical field of raw materials for textile industry, and in particular relates to a preparation method of regenerated cellulose fibers with anti-mite and antibacterial properties. Background technique [0002] Mites are a type of small arthropod parasites, usually around 0.5 mm in size, and there are many types. Among them, dust mites usually grow in household items such as mattresses, plush toys, sofas, bedding, cushions, and pillow cores. Feeds on human sweat, secretions, and shed dander. The dead bodies, secretions and excreta of mites are all allergens that can cause diseases. Existing studies have shown that 97% of adults will become ill due to mite infection. Common diseases include asthma, rhinitis, dermatitis, tinea corporis, etc. [0003] Neem is a Neem tree of the family Meliaceae, native to India and Myanmar, widely planted in tropical and subtropical regions, and has been distributed and planted in more than ...

AI Technical Summary

Problems solved by technology

[0004] Most of the anti-mite fibers currently on the market are synthetic additives added to the spinning solution, and then spun to form anti-mite fibers. The disadvantage of this type of fiber: on the one hand, the additives are directly added to the fiber Among them, these additives are easy to contact with human skin and affect human health; on the other hand, synthetic anti-mite additives are more toxic and cause more serious damage to the human body.

There are also some anti-mite fibers that use post-finishing methods to put anti-mite additives on various fibers, so as to have the effect of anti-mite. The disadvantage of this method is that the post-finishing method will not only affect the quality of the fiber itself , which ultimately leads to poor hand feeling of the fabric, and at the same time, the finishing auxiliaries have poor washability, and the anti-mite duration is short, which cannot meet the needs of consumers.

[0005] Patent CN101168867A provides an anti-mite viscose fiber made by crushing a commercially available anti-mite agent into nano-scale powder and adding it to viscose spinning stock solution through wet spinning. The commercially available anti-mite agent has no clear active ingredients , it is impossible to judge its biological toxicity and ecological safety, which is not conducive to popularization; and the production process of powder anti-mite agent is difficult, it is difficult to disperse evenly, and the cost is high

Patent CN100558953C discloses a kind of anti-mite cellulose fiber made by compounding hexythiazox, fenpyroxyl, pyraclofen and various auxiliary agents as anti-mite agents into the fiber. The drug composition is complex and the preparation The process is cumbersome, and these active ingredients are pesticides, not only slightly irritating to the eyes, but long-term use is not conducive to human health and ecological balance. This type of pesticide only has the effect of killing mites when it comes into contact with mites, and cannot cause damage to mites. avoidance effect

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