Preparation method of natural animal and plant based aldehyde-free color fixing agent

A formaldehyde-free color fixing agent, animal and plant technology, applied in the field of preparation of natural animal and plant-based composite formaldehyde-free color fixing agent, can solve the problems of dye fading, fading, poor color fixing effect of color fixing agent, etc. And fading, simple preparation steps, good color fixing effect

Inactive Publication Date: 2016-12-07
董晓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the problem that the existing color-fixing agent has poor color-fixing effect, causing serious dye fading and fading, affecting the quality of dyed cloth, and the color-fixing agent contains a large amount of formaldehyde, which affects the health of laborers. Problem, the present invention utilizes the esterification product of aloe vera extract to form a cross-linked film on the surface of fabric fibers, and simultaneously the extract contains a small amount

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] First weigh 2kg of fresh aloe vera, wash it repeatedly with water for 5 times, cut it into 4mm thin slices, then put the aloe vera flakes into the press, squeeze, collect the squeezed liquid, transfer it into a beaker, and then weigh 0.4g of fiber Put the prime enzyme and 0.3g pectinase into the beaker, then place the beaker in a digital display speed measuring constant temperature magnetic stirrer, under the condition of 45°C and 480r / min speed, stir and react at a constant temperature for 45min, then rapidly raise the temperature to 85°C, Keep warm for 8 minutes; after the heat preservation is over, let it stand still, cool naturally to room temperature, filter with suction, remove the filter residue, collect the filtrate, and transfer the filtrate to a rotary evaporator, and concentrate it to 1 / 2 of the original volume at 90°C , to obtain a concentrated solution; then take 25g of citric acid, 120mL of the above-mentioned concentrated solution, 4mL of a mass concentrat...

example 2

[0022] First weigh 1kg of fresh aloe vera, wash it repeatedly with water for 3 times, cut it into 2mm thin slices, put the aloe vera flakes into the press, squeeze, collect the squeezed liquid, transfer it into a beaker, and then weigh 0.2g of fiber Put the prime enzyme and 0.1g pectinase into the beaker, then place the beaker in a digital display speed measuring constant temperature magnetic stirrer, under the condition of 40°C and 420r / min speed, stir and react at a constant temperature for 30min, then rapidly raise the temperature to 80°C, Keep warm for 6 minutes; after the heat preservation is over, let it stand still, cool naturally to room temperature, filter with suction, remove the filter residue, collect the filtrate, and transfer the filtrate to a rotary evaporator, and concentrate it to 1 / 2 of the original volume at 85°C , to obtain a concentrated solution; then take 20g of citric acid, 80mL of the above-mentioned concentrated solution, 2mL of a mass concentration of...

example 3

[0025] First weigh 2kg of fresh aloe vera, wash it repeatedly with water for 4 times, cut it into 3mm thin slices, then put the aloe vera flakes into the press, squeeze, collect the squeezed liquid, transfer it into a beaker, and then weigh 0.3g of fiber Put the prime enzyme and 0.2g pectinase into the beaker, then place the beaker in a digital display speed measuring constant temperature magnetic stirrer, under the condition of 42°C and 430r / min speed, stir and react at a constant temperature for 40min, then rapidly raise the temperature to 82°C, Keep warm for 7 minutes; after the heat preservation is over, let it stand still, cool naturally to room temperature, filter with suction, remove the filter residue, collect the filtrate, and transfer the filtrate to a rotary evaporator, and concentrate it to 1 / 2 of the original volume at 87°C , to obtain a concentrated solution; then successively take 22g citric acid, 100mL of the above-mentioned concentrated solution, 3mL of a mass ...

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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PUM

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Abstract

The invention relates to a preparation method of a natural animal and plant based aldehyde-free color fixing agent, and belongs to the field of material preparation. According to the preparation method, the esterification product of aloe extract is used to carry out crosslinking on the surface of textile fibers to form a membrane; at the same time, the trace metal ions in aloe extract can be used as a natural mordant and can form coordinate bonds with the groups of dyes and textile fibers, thus the binding force between fibers and dyes is enhanced, the color fastness is increased; furthermore, a pig skin extract is doped, because collagen fibers in the pig skin extract are intertwined with each other to form a net-like structure, the pig skin extract has strong viscosity, and under certain conditions, the pig skin extract can adhere on the surface of textile fibers to form a net, so the dyes on fibers will not fall off easily, fading is difficult to happen, and the color fastness is increased. The prepared natural animal and plant based aldehyde-free color fixing agent has a good color fixing effect, dye is difficult to fall, fading is difficult to happen, the wet rubbing fastness can reach 2 grade or more, the dry rubbing fastness can reach 3 grade or more, and the color fixing agent does not contain any harmful component, will not damage the health of workers, and protects the environment at the same time.

Description

technical field [0001] The invention relates to a preparation method of a natural animal and plant-based composite formaldehyde-free color fixing agent, which belongs to the field of material preparation. Background technique [0002] Dye fixing agent refers to a class of compounds that can fix dyes and fibers more effectively, and it can improve and increase the fastness of dyed fabrics. At present, in the textile printing and dyeing industry, the use of dye fixing agents is becoming more and more extensive. [0003] The raw materials of existing and traditional acid color fixing agents are 4,4-dihydroxybiphenyl, formaldehyde, sulfuric acid, and acetic anhydride. The raw materials contain formaldehyde and are not environmentally friendly; some factories use phenolic and tannin acid color fixing agents , was considered to be a system that meets the requirements of environmental protection. But practice has proved that there are serious shortcomings: phenols still have envi...

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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IPC IPC(8): D06P1/46D06P1/44
CPCD06P1/46D06P1/44
Inventor 董晓薛培龙许博伟
Owner 董晓
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