Micro-nano fiber down blended cotton and preparation method thereof

Abstract

The invention firstly provides micro-nano fiber and down blended cotton. The micro-nano fiber and down blended cotton is made from, by weight, 15-20 parts of down, 8-12 parts of polypropylene nano fibers and 4-6 parts of polyurethane micro fibers. The invention further provides a making method of the micro-nano fiber and down blended cotton. The making method comprises the steps of pretreatment and electrostatic spinning. The thermal conductivity of the made blended cotton reaches 0.029 W / mK, the specific gravity is only 0.028, the blended cotton is light, dampproof and waterproof, can efficiently prevent parasitism and breeding of acarid for a long time, and will not deform after repeated machine washing or water washing or dry cleaning, and the warmth keeping performance of the blended cotton will not be affected. In brief, according to the blended cotton, the advantages of being resistant to low temperature, good in flexibility, high in adhesive force, high in strength and the like are integrated, moulding and worm damage can be effectively avoided for a long time, corresponding products also have obvious anti-bacterial and odor-resistant functions, and the blended cotton is non-toxic and harmless, low in production cost, high in warmth keeping performance and wide in application prospect.

Description

technical field [0001] The invention relates to the technical field of material blending, in particular to a micronano fiber down blended cotton. Background technique [0002] Down is the fluff that grows on the abdomen of geese and ducks, and is called feathers in flakes. Since down is a kind of animal protein fiber, there are tens of thousands of small triangular pores densely covered on the down ball-shaped fiber, which can shrink and expand with the change of temperature, and has the function of temperature adjustment, which can absorb the flowing hot air from the human body and isolate the invasion of cold air from the outside. . From the analysis of the bulkiness test, down is one level higher than silk, cotton and other thermal insulation materials. For example, the minimum standard of 450 degrees fluffy 90 duck down is also more fluffy than silk and cotton, so down is purely used as a thermal insulation material. The economic value is much higher than other thermal...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a micro-nano fiber down blended cotton and its preparation method, which solves the problems of high cost and poor anti-mite properties of existing down products