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Efficient antibacterial chitosan fiber and preparation method thereof

A technology of polysaccharide fiber and antibacterial shell, which is applied in the field of fiber material preparation and application, can solve the problems of no antibacterial property, loss of antibacterial effect, poor antibacterial persistence, etc., and achieve strong antibacterial durability, reduce production cost, and good antibacterial performance Effect

Inactive Publication Date: 2016-08-10
TIANJIN ZHONGSHENG BIO ENG CO LTD
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Problems solved by technology

[0005] At present, the complexation of metal ions (such as silver, titanium dioxide, copper ions, etc.) is a commonly used process for antibacterial finishing of textile products, but most of the textile substrates for antibacterial finishing are natural fibers that do not have antibacterial properties. Or chemical fibers, after antibacterial finishing, often lose the antibacterial effect after repeated washing, and the antibacterial durability is poor

Method used

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Embodiment Construction

[0012] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0013] In a preferred embodiment of the present invention, the degree of deacetylation of the chitosan is 87%, the viscosity is 800mPa·s, the concentration of chitosan in the spinning solution is 3%, and the concentration of urea is 0.8%. , the concentration of copper acetate is 0.06%, the concentration of glacial acetic acid is 3.5%, and the concentration of sodium hydroxide in the coagulation bath is 3.5%.

[0014] In a preferred embodiment of the present invention, the degree of deacetylation of the chitosan is 93.5%, the viscosity is 1000mPa·s, the concentration of chitosan in the spinning solution is 3.5%, and the concentration of urea is 1%. , the concentration of copper sulfate is 0.15%, ...

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Abstract

The invention discloses an efficient antibacterial chitosan fiber and a preparation method thereof. The method comprises the following steps: dissolving chitosan with certain viscosity and certain degree of deacetylation, copper salt and urea which are utilized as raw materials in dilute acetic acid in a certain mass ratio, so as to prepare a spinning solution; filtering and defoaming; spraying out from a spinneret plate; then performing coagulating bath solidification, tensioning, washing and drying processes, thereby obtaining the efficient antibacterial chitosan fiber. The method is simple in preparation process, high in technological condition controllability and easily controllable in material structure and performance; the prepared material has a high specific surface area, high antibacterial property and excellent antistatic property and flame resistance, and can be applied to the field of spinning, medical treatment and public health, filtration materials and the like.

Description

technical field [0001] The invention relates to the technical field of preparation and application of fiber materials, in particular to a high-efficiency antibacterial chitosan fiber and a preparation method thereof. Background technique [0002] Chitosan fiber is the only positively charged fiber in nature so far. It has high antibacterial rate, strong antibacterial persistence, excellent mite and formaldehyde removal performance, good biocompatibility with human body, can promote skin growth, and can Biodegradable. Therefore, chitosan fiber can be widely used in the fields of textiles, medical hygiene and filter materials, but its antibacterial properties are very strong under the interference of the environment (under neutral or alkaline environmental conditions), which reduces the antibacterial effect of its products. Durability also drops a lot. [0003] Chinese patent CN1308509C discloses a silver-containing chitosan fiber with antibacterial effect and its preparatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/00D01F1/10D01D5/06
Inventor 周新民苏雪寒邵欢迎
Owner TIANJIN ZHONGSHENG BIO ENG CO LTD
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