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Preparation method of magnetic chitosan modified silk fabric

A chitosan modification, chitosan technology, applied in chemical instruments and methods, alkali metal compounds, alkali metal oxides/hydroxides, etc., can solve the disadvantages of human body, low affinity between natural dyes and fibers, coloring rate Problems with low color fastness

Pending Publication Date: 2020-05-01
南通安广美术图案设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the affinity between natural dyes and fibers is low, and the coloring rate and color fastness are low. In the dyeing and finishing process, it is often necessary to use traditional mordants such as heavy metals to promote dyeing and fixation. Heavy metals pollute the environment and harm the human body. unfavorable

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A preparation method of magnetic chitosan modified silk fabric, comprising the steps of: dissolving 10 parts of chitosan in a beaker filled with 95 parts of distilled water, adding 7 parts of glacial acetic acid, and placing the beaker in a magnetic stirrer , stirred at 30°C until the chitosan was completely dissolved and the solution was transparent; 15 parts of ferric chloride was added to 80 parts of ethylene glycol, and stirred in a magnetic stirrer at 30°C until the ferric chloride was completely Dissolve, the solution is yellow and transparent, add 25 parts of sodium acetate while stirring, until the solution becomes thick and uniform brown, and obtain iron oxide solution; slowly add the prepared chitosan solution to the magnetic nano In the iron oxide solution, the mixed solution gradually changed from the initial yellow-brown color to transparent wine red, and the magnetic iron oxide-chitosan hybrid solution was obtained; the temperature was controlled at 42°C, a...

Embodiment 2

[0017] A preparation method of magnetic chitosan modified silk fabric, comprising the steps of: dissolving 5 parts of chitosan in a beaker filled with 90 parts of distilled water, adding 6 parts of glacial acetic acid, and placing the beaker in a magnetic stirrer , stir at 25°C until the chitosan is completely dissolved and the solution is transparent; add 10 parts of ferric chloride to 75 parts of ethylene glycol, and stir in a magnetic stirrer at 25°C until the ferric chloride is completely Dissolve, the solution is yellow and transparent, add 20 parts of sodium acetate while stirring, until the solution becomes thick and uniform brown, and obtain iron oxide solution; slowly add the prepared chitosan solution to the magnetic nano In the iron oxide solution, the mixed solution gradually changed from the initial yellow-brown color to transparent wine red, and the magnetic iron oxide-chitosan hybrid solution was obtained; the temperature was controlled at 40°C, and the silk was ...

Embodiment 3

[0019] A preparation method of magnetic chitosan modified silk fabric, comprising the steps of: dissolving 15 parts of chitosan in a beaker filled with 100 parts of distilled water, adding 8 parts of glacial acetic acid, and placing the beaker in a magnetic stirrer , stir at 35°C until the chitosan is completely dissolved and the solution is transparent; add 20 parts of ferric chloride to 85 parts of ethylene glycol, and stir in a magnetic stirrer at 35°C until the ferric chloride is completely Dissolve, the solution is yellow and transparent, add 30 parts of sodium acetate while stirring, until the solution becomes thick and uniform brown, and obtain iron oxide solution; slowly add the prepared chitosan solution to the magnetic nano In the iron oxide solution, the mixed solution gradually changed from the initial yellow-brown color to transparent wine red, and the magnetic iron oxide-chitosan hybrid solution was obtained; the temperature was controlled at 44°C, and the silk wa...

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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Abstract

The invention discloses a preparation method of a magnetic chitosan modified silk fabric. The preparation method comprises the following steps: dissolving chitosan in a beaker filled with distilled water, adding glacial acetic acid, putting the beaker in a magnetic stirrer, stirring until the chitosan is completely dissolved and the solution becomes transparent; adding ferric chloride into ethylene glycol, stirring until ferric chloride is completely dissolved and the solution becomes yellow and transparent, adding sodium acetate while stirring until the solution becomes thick and uniform brown yellow to obtain a ferric oxide solution; slowly adding the prepared chitosan solution into the magnetic nano iron oxide solution while stirring until the mixed solution slowly becomes transparent wine red to obtain a magnetic iron oxide chitosan hybrid solution; treating the silk fabric by using the solution on a constant-temperature oscillation dyeing machine, washing and drying to obtain thesilk fabric. The method is rapid and easy to operate, the surface roughness of the treated silk is increased, chitosan-coated magnetic iron oxide nano particles exist on the silk fabric, and adsorption of a natural dye namely anthocyanin is enhanced.

Description

technical field [0001] The invention relates to a preparation method of magnetic chitosan modified silk fabric. Background technique [0002] Nano-organic / inorganic hybrid materials combine the advantages of high strength, high melting point, and high stability of inorganic materials with the softness, modifiability, and low density of organic materials in terms of structure and performance through the functional compounding of two or more materials. , has excellent mechanical, thermal, electrical, magnetic and other properties, can endow textiles with new functions, and at the same time improve the added value of products, so it has attracted widespread attention. Chitosan contains active groups -OH, -NH 2 , good biocompatibility, biodegradability, and film-forming properties, and can be used to prepare hybrid materials with most inorganic nanoparticles. There are many reports at home and abroad about the preparation of chitosan organic-inorganic hybrid materials deposite...

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30
CPCB01J20/06B01J20/24B01J20/28009
Inventor 不公告发明人
Owner 南通安广美术图案设计有限公司
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