Copper ion complexing poly gamma glutamic acid/chitosan/cotton blended antibacterial knitted fabric and preparation method thereof

A technology of glutamic acid and chitosan, applied in botany equipment and methods, preparation of spinning solution, conjugated synthetic polymer artificial filament, etc., can solve the problem of affecting the appearance of white or light-colored products and affecting the appearance of chitosan Fiber antibacterial, limited application and other issues, to achieve the effect of omitting the finishing process, ensuring natural style, and reducing production costs
CN112127013AActive Publication Date: 2020-12-25QUFU NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QUFU NORMAL UNIV
Publication Date
2020-12-25

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Abstract

The invention belongs to the field of functional textiles, and particularly relates to copper ion complexing poly gamma-glutamic acid(gamma-PGA) / chitosan(CS) / cotton blended antibacterial knitted fabric and a preparation method thereof. According to the knitted fabric, chitosan and poly gamma-glutamic acid are cross-linked, then a copper ammonia complex ion solution is added to prepare a spinning solution, the spinning solution is subjected to wet spinning, then stretching, water washing, after-finishing, water washing and drying are carried out to obtain copper ion complexing poly gamma-glutamic acid / chitosan composite fibers, and the blended antibacterial knitted fabric is prepared from cotton fiber yarn and the composite fibers. In the knitted fabric and the preparation method, carboxylof gamma-PGA and amino of CS have a very high coordination coefficient, and the structure is stable. Poly-gamma glutamic acid can be used as a water-retaining agent and a heavy metal ion adsorbent, and the loading rate of copper ions can be increased. In the knitted fabric and the preparation method, chitosan and the copper ions are combined to resist bacteria and have a synergistic effect, and the finally-prepared knitted fabric has better antibacterial performance, anti-static performance and flame retardance and is high in antibacterial durability.
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Description

technical field

[0001] The invention relates to the field of functional textiles, in particular to a copper ion complexed poly-γ-glutamic acid (γ-PGA) / chitosan (CS) / cotton blended antibacterial knitted fabric and a preparation method thereof. Background technique

[0002] Chitosan is a natural polymer compound, which is a positively charged natural alkaline polysaccharide obtained by deacetylation of chitin, and is abundant in the shells of shrimp and crabs. Chitosan not only has good biocompatibility, biodegradability and non-toxicity, but also has good antibacterial properties, which can inhibit the growth of certain pathogenic microorganisms (such as Escherichia coli and Staphylococcus aureus). The biodegradability of chitosan also helps prevent the pollution of the environment after its products are discarded, and improves the micro-ecological properties of the soil. Chitosan has a positive charge, and this feature is used to cross-link with negatively charged poly-γ-gl...

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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