Chitosan filament and preparation method thereof

A technology of chitosan and filaments, which is applied in the preparation of spinning solution, rayon manufacturing, textiles and papermaking, etc. It can solve the problems of difficulty in popularization, easy fiber adhesion, low concentration of spinning solution, etc., and achieve stable spinning process , high mechanical strength and high spinning yield
CN103409850AInactive Publication Date: 2013-11-27JIANGSU SHENGHONG CHEM FIBRE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU SHENGHONG CHEM FIBRE CO LTD
Publication Date
2013-11-27
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention relates to chitosan filaments and a preparation method thereof. According to the invention, chitosan is dissolved by using a green environment-friendly ionic liquid solvent; dissolving time and temperature are reasonably controlled, such that high-concentration spinning solution is prepared. With the method, continuous production can be carried out, such that that problems of difficulty for carrying out continuous productions due to low stability and poor stability of prior art are solved. According to the invention, during the chitosan filament preparation process, the chitosan is dissolved by using the ionic liquid solvent and the gradient temperature method, degradation is prevented during the chitosan heating process, spinning process is stable, the prepared chitosan fiber has high quality, and spinning yield is high. The chitosan filament provided by the invention has high mechanical strength which is higher than 2.5cN / dex and higher than chitosan fiber prepared by using an acidic solution. Therefore, the filament is suitable for the medical field, and has higher application value.
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Description

[0001] technical field

[0002] The invention relates to a chitosan filament and a preparation method thereof, in particular to a method for directly dissolving chitosan with a green solvent to prepare the chitosan filament, and belongs to the technical field of chemical fiber material manufacturing methods.

[0003] Background technique

[0004] Chitosan fiber is a fiber produced from marine organisms such as shrimp, crab, and shell waste. It is currently the only pure marine animal regenerated fiber. It neither relies on petroleum resources nor competes with grain and cotton for land, changes the status quo that all renewable biomass fibers rely on plant raw materials, and creates a new way for marine animal shell waste to be used as raw materials for recycled fibers. Chitosan fiber has many natural excellent properties, such as moisture absorption and air permeability, reactivity, biocompatibility, biodegradability, antibacterial and safety, etc., so it is widely used...

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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