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A method of dyeing and anti -wrinkles based on occasional reactions

A coupling reaction and anti-wrinkle finishing technology, which is applied in the direction of dyeing, fiber treatment, and fibers that affect crease behavior, can solve the problems of low color fastness, fiber damage, and high energy consumption, and achieve good color fastness and fiber Small damage and low production energy consumption

Active Publication Date: 2022-03-25
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for anti-wrinkle finishing of real silk based on coupling reaction, aiming to carry out low-temperature anti-wrinkle finishing through coupling reaction, improve the wrinkle recovery of fabrics, and achieve the effect of low-temperature dyeing at the same time. Solve the problems of high energy consumption, low color fastness and easy fiber damage in silk dyeing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Silk electrospinning dyeing and wrinkle-resistant finishing;

[0043] (1) Aromatic diamine compound diazotization: dissolve 7.5g / L 4,4'-diaminodiphenylamine with 5g / L hydrochloric acid, add 5g / L sodium nitrite to carry out 4,4'-diaminodiphenylamine diazotization Nitride, treat at 0°C for 30min to prepare diazonium salt solution; after the reaction, use starch-potassium iodide test paper to detect nitrous acid, and use urea to remove excess nitrous acid;

[0044] (2) Padding lye for silk fabrics: the gram weight is 36g / m 2 The caustic soda solution of the silk power spinning and padding is used to ionize the phenolic hydroxyl groups in the fiber macromolecules; the treatment process prescription and conditions: caustic soda 0.05g / L, 100% rolling residual ratio, padding temperature 25 ℃, drying at 50 ℃ after padding Dry;

[0045] (3) Coupling and coloring of silk fabrics: adjusting the diazonium salt solution in step (1) to pH 7.5, immersing the silk electrospinning treat...

Embodiment 2

[0052] Silk crepe de chine dyeing and wrinkle-resistant finishing;

[0053] (1) Diazotization of aromatic diamine compounds: Dissolve 12.5g / L 4,4'-diaminobenzoic anilide with 10g / L hydrochloric acid, add 7.5g / L sodium nitrite to carry out 4,4'-diaminobenzamide Aminobenzoyl anilide diazotization, after 40min treatment at 0 ℃, prepare diazonium salt solution; after the reaction, use starch-potassium iodide test paper to detect nitrous acid, and use urea to remove excess nitrous acid;

[0054] (2) Silk fabric padding lye: 68g / m 2 Padding caustic soda solution of silk crepe de chine to ionize the phenolic hydroxyl groups in the fiber macromolecules; treatment process prescription and conditions: caustic soda 0.12g / L, residual rate 100%, padding temperature 20℃, drying at 40℃ after padding Dry;

[0055] (3) Coupling and coloring of silk fabrics: adjusting the diazonium salt solution in step (1) to pH 7.0, and immersing the silk electrospinning processed in step (2) in the diazoni...

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PUM

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Abstract

The invention discloses a method for dyeing real silk and anti-wrinkle finishing based on a coupling reaction, and belongs to the technical field of textile chemistry. In the invention, the diazotization of the aromatic diamine compound and the coupling reaction with the tyrosine side group containing the phenolic hydroxyl group in the silk fiber macromolecule dye the silk fabric, improve its wrinkle recovery performance, and realize wrinkle-resistant finishing. The specific steps include: (1) diazotization of aromatic diamine compounds; (2) padding of real silk fabrics with lye; (3) coupling and coloring of real silk fabrics; (4) post-treatment after washing and drying. Compared with real silk dyeing by high-temperature boiling dyeing and high-temperature baking method for resin wrinkle-proof finishing of real silk fabrics, processing by the method mentioned in the present invention has the advantages of less damage to real silk fibers, shorter process flow and good color fastness of fabrics .

Description

technical field [0001] The invention relates to a method for dyeing and anti-wrinkle finishing of real silk based on a coupling reaction, belonging to the technical field of textile chemistry. Background technique [0002] Mulberry silk is composed of two parts, sericin and silk fibroin. During degumming treatment, sericin is dissolved by alkaline agent or hydrolyzed by protease, while silk fibroin with high chemical stability is effectively retained and can be processed into different silk fabrics. The silk fabric is soft to the touch, elegant in luster, excellent in absorption, and has good wearing comfort. With consumers' requirements for novel silk fabrics, silk fabrics are no longer limited to the boundaries of traditional summer, and are not only used as light and thin summer clothing fabrics, but also used in autumn and winter suits, shawls, high-end trench coats and interior decorations. [0003] Due to the high content of polar groups such as amino groups and hydro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/12D06P3/12D06M13/322D06M101/10
CPCD06M13/322D06P1/127D06P3/12D06M2200/20D06M2101/10
Inventor 王平魏叶余圆圆王强范雪荣
Owner JIANGNAN UNIV