Antipilling nitrilon and its production method

An anti-pilling acrylic fiber, production process technology, applied in textiles and papermaking, one-component synthetic polymer rayon, fiber chemical characteristics, etc. Poor durability, etc.

CN1948567AActive Publication Date: 2007-04-18PETROCHINA CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Current Assignee / Owner: PETROCHINA CO LTD
Publication Date: 2007-04-18

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Abstract

The invention relates to a kind of Anti-pilling acrylic and its production technology. Based on weight proportion, it contains acrylonitrile copolymer A with 90-95% Acrylon, 10-5% Nikasol and viscosity average molecular weight of 35000-50000 and acrylonitrile copolymer B with 86-95% Acrylon, 14-5% Nikasol and viscosity average molecular weight of 50000-60000. The two copolymers mix at a ratio of 1:1-2. Total monolithic density of feed materials is 28-35%. Reaction temperature is 55-65deg.C, PH value is 2.0-3.0 and percent convention is 75-85%. Mixed copolymers are dewatered and solved by sodium sulfocyanate to prepare coarse stock solution with 13.5-14% copolymer. Coarse stock solution is degassed and filtered to get spinning stock solution. Reduce content of diad in copolymer to enhance intermolecular density, debase activity of molecular chain and enhance fiber rigidity and fragility of shearing action. Fiber ends in fabric are not easy to wind or knot, which achieves good anti-pilling effect.

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Description

technical field

[0001] The invention relates to an anti-pilling acrylic fiber produced by applying a two-step polymerization process of acrylic fiber and a production method thereof. Background technique

[0002] Most synthetic fibers suffer from the phenomenon of "pilling" during use. Acrylic macromolecules have an irregular helical conformation and do not have a real crystalline structure. Therefore, there are no strict crystalline regions and amorphous regions, only high-order regions and low-order regions. It is much higher than natural fibers and regenerated cellulose fibers, and the formation rate of fiber pellets on the surface of the product is greater than the rate of shedding, so when the friction force cannot eliminate the fiber pellets, the formed fiber pellets will last for a long time It remains on the surface of the fabric, which seriously affects the appearance and wearing comfort of the fabric. The existing acrylic fiber anti-pilling modification method is...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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