Preparation method of silk peptide finishing agent for cotton fabric

A finishing agent and cotton fabric technology, which is applied in fiber treatment, animal fiber, textiles and papermaking, etc. It can solve the problems of poor color fastness, low dyeing rate, light color yield, etc., and achieve softness improvement and whiteness maintenance constant effect

Inactive Publication Date: 2017-05-31
JIANGSU AIXISHI TECH SERVICE CONSULTATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most natural dyes are used to dye protein fibers such as silk and wool, while cotton fabrics dyed with natural dyes generally have low dyeing rate, light color and poor color fastness.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A preparation method for silk peptide finishing agent for cotton fabrics, comprising the following steps:

[0018] Step 1, washing the silk and adding it to 20v / v% dilute sulfuric acid solution for hydrolysis reaction to obtain a reaction solution;

[0019] Step 2, adding 10wt.% calcium chloride and 0.8wt.% sodium tartrate to the reaction solution in step 1, adjusting the pH of the solution to 6, stirring, and filtering to obtain a crude filtrate;

[0020] Step 3, introducing the crude filtrate into a microfiltration membrane for filtration, and concentrating the filtrate under reduced pressure to obtain silk peptide;

[0021] Step 4, in parts by weight, add 2 parts of silk peptide, 1 part of low molecular weight chitosan, 3 parts of citric acid, 2 parts of sodium hypophosphite, 1 part of amino silicone oil, and 5 parts of coconut oil fatty acid diethanolamide to remove In ionized water, adjust the pH to 6, disperse, and obtain.

[0022] Wherein, the hydrolysis reacti...

Embodiment 2

[0024] A preparation method for silk peptide finishing agent for cotton fabrics, comprising the following steps:

[0025] Step 1, washing the silk and adding it to 23v / v% dilute sulfuric acid solution for hydrolysis reaction to obtain a reaction solution;

[0026] Step 2, adding 12wt.% calcium chloride and 1.2wt.% sodium tartrate to the reaction solution in step 1, adjusting the pH of the solution to 6, stirring, and filtering to obtain a crude filtrate;

[0027] Step 3, introducing the crude filtrate into a microfiltration membrane for filtration, and concentrating the filtrate under reduced pressure to obtain silk peptide;

[0028] Step 4, in parts by weight, add 3 parts of silk peptide, 2 parts of low molecular weight chitosan, 5 parts of citric acid, 5 parts of sodium hypophosphite, 3 parts of amino silicone oil, 6 parts of coconut oil fatty acid diethanolamide to remove In 70 parts of ionic water, adjust the pH to 6, disperse, and obtain.

[0029] Wherein, the hydrolysi...

Embodiment 3

[0031] A preparation method for silk peptide finishing agent for cotton fabrics, comprising the following steps:

[0032] Step 1, washing the silk and adding it to 20v / v% dilute sulfuric acid solution for hydrolysis reaction to obtain a reaction solution;

[0033] Step 2, adding 10wt.% calcium chloride and 0.8wt.% sodium tartrate to the reaction solution in step 1, adjusting the pH of the solution to 6, stirring, and filtering to obtain a crude filtrate;

[0034] Step 3, introducing the crude filtrate into a microfiltration membrane for filtration, and concentrating the filtrate under reduced pressure to obtain silk peptide;

[0035] Step 4, in parts by weight, add 4 parts of silk peptide, 3 parts of low molecular weight chitosan, 7 parts of citric acid, 5 parts of sodium hypophosphite, 3 parts of amino silicone oil, 7 parts of coconut oil fatty acid diethanolamide to remove In 80 parts of ionic water, adjust the pH to 6, disperse, and obtain.

[0036] Wherein, the hydrolysi...

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Abstract

The invention provides a preparation method of a silk peptide finishing agent for a cotton fabric. The preparation method comprises the following steps: cleaning silks, then adding the cleaned silks into a dilute sulfuric acid solution, performing hydrolysis reaction, adding calcium chloride and sodium tartrate, regulating a pH value of the solution to 6 to 7, stirring, filtering, guiding a primary filter solution into a micro-filtration membrane to be filtered, and decompressing and concentrating the filtrate to obtain silk peptides; and finally adding the silk peptides, low-molecular-weight chitosan, citric acid, sodium hypophosphite, amino silicon oil and coconut oil fatty acid diethanol amide into deionized water, regulating the pH to 6 to 7, dispersing, thus obtaining the silk peptide finishing agent. By adopting the silk peptide finishing agent of the invention, the dyeing depth of three natural dyes, namely, black tea, logwood and Artemisia argyi for the cotton fabric can be improved, the soaping and friction fastness of the dyed fabric are slightly decreased, the strength is slightly decreased, the whiteness is maintained unchanged, and the softness is improved compared with that before the finishing.

Description

technical field [0001] The invention belongs to the technical field of fabric finishing agents, and in particular relates to a preparation method of a silk peptide finishing agent for cotton fabrics. Background technique [0002] In recent years, the research on dyeing with natural dyes has been quite active, and ecological textiles represented by dyeing with natural dyes have attracted much attention. Most natural dyes are used in the dyeing of protein fibers such as silk and wool, while cotton fabrics dyed with natural dyes generally have low dyeing rate, light color and poor color fastness. Only by overcoming the above-mentioned shortcoming of dyeing cotton fibers on natural dyes, can the industrial application of cotton fiber natural dyes be realized in a real sense. [0003] Cotton fabrics are treated with silk peptide, so that a large amount of active groups such as amino groups and hydroxyl groups are deposited and fixed on the cotton fibers, which improves the dyeab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/402D06M15/15D06M15/03D06M13/207D06M11/70D06M15/643D06M101/10
CPCD06M13/402D06M11/70D06M13/207D06M15/03D06M15/15D06M15/6436D06M2101/10
Inventor 汪屹
Owner JIANGSU AIXISHI TECH SERVICE CONSULTATION CO LTD
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