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A kind of preparation technology of dyeing and finishing agent based on graphene oxide

A preparation process and graphene technology are applied in the field of preparation technology of dyeing and finishing agents, which can solve the problems of fabric hardening, affecting hand feeling, fading and discoloration, etc.

Active Publication Date: 2022-05-06
CONCORDIA ADVANCED FABRICS SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dyeing finishing agent is a kind of fabric printing and dyeing auxiliary agent that treats the fabric so that the dyeing agent can be closely combined with the fabric to improve the color fastness of the fabric. Its main function is to combine with the fabric fiber to form a layer of finishing agent on the surface of the fabric fiber layer, and then the finishing agent and the dyeing agent are combined through electrostatic bonding, chemical bonding, etc., but in the prior art, the finishing agent can improve the dyeing effect of the dye after finishing before dyeing, but as the use time becomes longer, Affected by factors such as bacteria, it will accelerate aging and cause color fading. At the same time, many dyeing and finishing agents will cause the fabric to harden and affect the hand feeling due to the pursuit of dyeing effects. In order to solve the above problems, the present invention provides the following technical solutions

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

[0030] A kind of preparation technology of dyeing and finishing agent based on graphene oxide, comprises the steps:

[0031] Step 1, preparing graphene oxide by hummer method;

[0032] Step 2, the graphene oxide and potassium hydroxide solid prepared in the above step are mixed according to the weight ratio of 1:5 and then ground evenly, and then the ground and mixed material is heated at 800°C for 80 minutes in a nitrogen atmosphere, and after the heating is completed, use Rinse the mixture with deionized water until the rinse water is neutral to remove the potassium hydroxide component, and then dry the graphene oxide at a temperature of 60° C. to obtain pretreated graphene oxide;

[0033] Step 3, add polyurethane and the pretreated graphene oxide obtained in the previous step into tetrahydrofuran respectively, add 4g of pretreated graphene oxide in every 1L of tetrahydrofuran, and the weight ratio of pretreated graphene oxide and polyurethane is 1:5 After ultrasonic treatm...

Embodiment 2

[0037] A kind of preparation technology of dyeing and finishing agent based on graphene oxide, comprises the steps:

[0038] Step 1, preparing graphene oxide by hummer method;

[0039] Step 2, the graphene oxide and potassium hydroxide solid prepared in the above step are mixed according to the weight ratio of 1:6 and then ground evenly, and then the ground and mixed material is heated at 800°C for 80 minutes in an inert gas atmosphere, and after the heating is completed Rinse the mixture with deionized water until the rinse water is neutral to remove the potassium hydroxide component, and then dry the graphene oxide at a temperature of 60° C. to obtain pretreated graphene oxide;

[0040] Step 3, polyurethane and the pretreated graphene oxide obtained in the previous step are added respectively in tetrahydrofuran, 6g of pretreated graphene oxide is added in every 1L of tetrahydrofuran, and the weight ratio of pretreated graphene oxide and polyurethane is 1:8 , after ultrasoni...

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 process of a dyeing and finishing agent based on graphene oxide. First, the graphene oxide is treated at high temperature with potassium hydroxide, and then the dispersed graphene oxide and polyurethane are uniformly dispersed in a tetrahydrofuran solvent and subjected to ultrasonic treatment, and finally Then use the reaction between acid chloride and active hydroxyl group and amino group to graft chitosan on the modified graphene oxide, which can make chitosan and graphene oxide uniformly combined. On the one hand, chitosan and modified graphene oxide Both have good antibacterial effect, which can improve the antibacterial performance of the treated fabric. On the other hand, chitosan can combine with dyes and fabric fibers through van der Waals force, hydrogen bonds, ionic bonds, etc., thereby improving the color of dyes. Fastness and the binding effect of modified graphene oxide on fabric fibers.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a preparation process of a graphene oxide-based dyeing and finishing agent. Background technique [0002] Fabric finishing is to apply a finishing agent on the fabric, which can change the surface properties of the fabric, thereby endowing the fabric with special functions. For example, hydrophobic and oil-repellent finishing is to treat the fabric with a finishing agent with low surface tension to change the surface properties of the fiber. , so that the surface of the fabric is not easily wetted and spread by water or oil, so as to achieve the purpose of water repellency and oil repellency. It is not easy to attach dirt, or the processing technology that makes the attached dirt easy to wash and no longer stain; [0003] Dyeing finishing agent is a kind of fabric printing and dyeing auxiliary agent that treats the fabric so that the dyeing agent can be closely comb...

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 Patents(China)
IPC IPC(8): D06P1/52C08G83/00D06P1/39D06P3/60
CPCD06P1/5264D06P1/5285C08G83/001D06P1/39D06P3/6008
Inventor 不公告发明人
Owner CONCORDIA ADVANCED FABRICS SUZHOU