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Wet rubbing fastness improver for dyed fabrics

A technology for wet rubbing fastness and improving agent, which is applied in the field of textile auxiliary preparation, can solve the problems of poor fastness improving effect of wet rubbing fastness improving agent, affecting the color index of fabrics, etc. Capacitance, the effect of reducing adverse effects

Inactive Publication Date: 2017-10-20
方建波
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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: Aiming at the problem that the traditional wet rubbing fastness improving agent has poor fastness improving effect and easily affects the color index of the fabric, a wet rubbing fastness improving agent for dyed fabric is provided

Method used

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  • Wet rubbing fastness improver for dyed fabrics

Examples

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Effect test

example 1

[0020] First take successively by weighing 20g polyaspartic acid, 20g citric acid, 15g sucrose, 40g ferrous sulfate heptahydrate, pour in the beaker that fills 400mL deionized water, stir and mix with glass rod for 20min, get mixed solution, and The obtained mixed solution was transferred to a three-necked flask, and then the three-necked flask was moved into a digital display velocity measuring constant temperature magnetic stirrer, and at a temperature of 32°C and a rotating speed of 500r / min, 40 mL of activated yeast liquid, 20 gL -Ascorbic acid; After the activated yeast liquid and L-ascorbic acid are added, continue to stir and react at a constant temperature for 4 hours, then filter the material in the three-necked flask to obtain a filter residue, and wash the filter residue 5 times with deionized water, and then transfer the washed filter residue to vacuum drying box, at a temperature of 85°C, dry for 5 hours to obtain a dry filter residue; then weigh 30g of sodium dode...

example 2

[0022]First take successively by weighing 10g polyaspartic acid, 10g citric acid, 10g sucrose, 30g ferrous sulfate heptahydrate, pour in the beaker that fills 300mL deionized water, stir and mix with glass rod for 10min, get mixed solution, and The obtained mixed solution was transferred into a three-necked flask, and then the three-necked flask was moved into a digital display velocity measuring constant temperature magnetic stirrer, and at a temperature of 28°C and a rotating speed of 300r / min, 30 mL of activated yeast liquid, 10 gL -Ascorbic acid; after the addition of the activated yeast liquid and L-ascorbic acid is completed, continue to stir and react at a constant temperature for 2 hours, then filter the material in the three-necked flask to obtain a filter residue, and wash the filter residue 3 times with deionized water, and then transfer the washed filter residue to vacuum drying box, at a temperature of 75°C, dry for 3 hours to obtain a dry filter residue; then weig...

example 3

[0024] First take successively by weighing 15g polyaspartic acid, 15g citric acid, 12g sucrose, 35g ferrous sulfate heptahydrate, pour in the beaker that fills 350mL deionized water, stir and mix with glass rod for 15min, get mixed solution, and The obtained mixed solution was transferred into a three-necked flask, and then the three-necked flask was moved into a digital display velocity measuring constant temperature magnetic stirrer, and at a temperature of 31°C and a rotating speed of 400r / min, 40 mL of activated yeast liquid, 15 gL -Ascorbic acid; after the activated yeast liquid and L-ascorbic acid are added, continue to stir and react at a constant temperature for 3 hours, then filter the material in the three-necked flask to obtain a filter residue, wash the filter residue 4 times with deionized water, and then transfer the washed filter residue to vacuum drying box, at a temperature of 80°C, dry for 4 hours to obtain a dry filter residue; then weigh 25g of sodium dodecy...

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Abstract

The invention relates to a wet rubbing fastness improver for dyed fabrics, belonging to the technical field of preparation of textile aids. Firstly, citric acid is utilized for complexing and adsorbing ferrous ions in a solution and is gradually consumed by saccharomycetes during reaction, and ferrous ions are released and are reduced into superfine iron powder through reducibility of L-ascorbic acid and is simultaneously is adsorbed with polyaspartic acid, so that the agglomeration of the iron powder is avoided; and the superfine iron powder is taken as a core and is matched with L-ascorbic acid and the like to form a reducing agent, copper ions are reduced by virtue of the reducing agent so as to generate superfine copper powder, the superfine copper powder is subjected to centrifugal drying to generate composite superfine powder, and the composite superfine powder is subjected to ultrasonic dispersion and reacts with potassium persulfate as an initiator, so as to generate wet rubbing fastness improver for the dyed fabrics. The prepared wet rubbing fastness improver for the dyed fabrics has a good fastness improvement effect and has wide application prospects.

Description

technical field [0001] The invention relates to an agent for improving the wet rubbing fastness of dyed fabrics, belonging to the technical field of textile auxiliaries preparation. Background technique [0002] The wet rubbing fastness of dyed fabrics is essentially the degree to which dye molecules and their attachments on the dyed fabrics are transferred to the wet rubbing test fabric through interface contact in a wet state (usually in a solution) under the action of an external force. After the fabric is dyed or printed, the dye and the fiber are combined through covalent bonds, hydrogen bonds, and Van der Waals force. Due to the concentration difference, the dyed fabric and the rubbing wet cloth are diffused, and the molecules are diffused and transferred from high concentration to low concentration. , of course, only in the absence of obvious external force, the amount of transfer is very small, this is because they are bound by intermolecular force, when subjected to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/08D06P5/10D06P5/02D06P5/04C08F220/18C08F220/14C08F2/44
CPCC08F2/44C08F220/14C08F220/18C08F220/1804C08K2003/0856D06P5/02D06P5/04D06P5/08D06P5/10
Inventor 李小兰薛洋许丽君
Owner 方建波
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