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Silk broadcloth non-methanal discharge printing discharge paste and its discharge printing technique

A discharge printing and formaldehyde technology, applied in the field of formaldehyde-free discharge printing discharge paste and preparation, can solve the problems of large consumption, reduced processing cost, high cost, etc., and achieve the effect of low consumption and light washing task

Inactive Publication Date: 2009-05-13
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems that conventional discharge agents release formaldehyde in discharge printing, have poor stability, large dosage and high cost, and provide a formaldehyde-free discharge printing paste for real silk and a preparation method thereof, as well as its discharge printing technology, so that the silk discharge printing products and their processing process are both ecological and environmentally friendly, and reduce the amount of discharge agent and processing cost

Method used

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  • Silk broadcloth non-methanal discharge printing discharge paste and its discharge printing technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Fabric preparation: silk crepe chine fabric dyed with weakly acid brilliant orange GS dye.

[0037] (2) Preparation of the original paste: Add 24g of the modified plant seed glue A9 paste into a 500ml beaker, then add 276ml of water, and stir until the paste is uniform.

[0038] (3) Preparation of white pulp: add 70 g of the above-mentioned raw paste into a 200 ml beaker, then add 5 g of urea, 5 g of thiourea dioxide, and 20 g of water, and stir evenly to make white pulp.

[0039] (4) Preparation of color drawing pulp: Add 2 g of engraved ON yellow, a flower color dye, and 18 ml of hot water into a 50 ml beaker, and stir until the dye is completely dissolved. Add 70g of the above-mentioned modified seed gum A9 paste into a 200ml beaker, then add 5g of urea, 5g of thiourea dioxide and ON yellow solution of flower color dye, and stir evenly to make color drawing pulp.

[0040] (5) Printing on silk crepe chine fabric dyed with weakly acid brilliant orange GS dye with ...

Embodiment 2

[0045] (1) Fabric preparation: silk crepe chine fabric dyed with weak acid dark blue 5R dye.

[0046] (2) Preparation of raw paste: Add 39g of modified plant seed glue A13 paste into a 500ml beaker, then add 261ml of water, and stir until the paste is uniform.

[0047] (3) Add 60 g of the above-mentioned raw paste into a 200 ml beaker, then add 4 g of urea, 7 g of thiourea dioxide and 29 ml of water, and stir evenly to make white paste.

[0048] (4) Preparation of color drawing pulp: Add 2 g of engraving G red, the color dye, and 25 ml of hot water into a 50 ml beaker, and stir until the dye is completely dissolved. Add 62g of the above-mentioned raw paste into a 200ml beaker, then add 4g of urea, 7g of thiourea dioxide and the above-mentioned floral dye engraving G red solution, and stir evenly to make a color drawing paste.

[0049] (5) Printing on silk crepe chine fabric dyed with weakly acidic dark blue 5R dye with white pulp and colored pulp respectively.

[0050] (6) D...

Embodiment 3

[0054] (1) Fabric preparation: silk crepe chine fabric dyed with Kapron pink BS dye.

[0055](2) Raw paste preparation: Add 150g of thickening slurry containing 3% synthetic thickener PT-RV and 150g of thickening slurry containing 3.5% synthetic thickener PFL into a 500ml beaker, stir evenly to make a pull-resistant Compound thickener. (3) Add 75g of the above-mentioned composite thickening pulp into a 200ml beaker, then add 6g of urea, 5g of thiourea dioxide and 14ml of water, and stir evenly to make white pulp.

[0056] (4) Preparation of color drawing pulp: Add 2 g of engraved BL blue and 14 ml of hot water into a 50 ml beaker, and stir until the dye is completely dissolved. Add 75g of the above-mentioned composite thickening paste into a 200ml beaker, then add 6g of urea, 3g of thiourea dioxide and the above-mentioned floral dye engraving BL blue solution, and stir evenly to make a color drawing paste.

[0057] (5) Printing on silk crepe chine fabric dyed with Kapron pin...

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Abstract

The invention discloses formaldehyde-free discharge printing discharge paste, a preparation method and application to pure silk discharge printing thereof. The pure silk discharge printing discharge paste comprises the following components in weight percentage: 60 to 75 percent of thickener, 4 to 6 percent of hygroscopic latent solvent, 0 to 5 percent of discharge-resistant dye, 3 to 7 percent of formaldehyde-free discharging agent, and 10 to 30 percent of water, wherein the formaldehyde-free discharging agent is thiourea dioxide, the thickener is modified plant seed plasmagel or compound discharge-resistant thickening paste the solid content of which is 8 to 13 percent, the hygroscopic latent solvent is urea, and the discharge-resistant dye is acid or neutral dye resistant to reduction of the thiourea dioxide. By applying the discharge paste to the pure silk discharge printing, the discharge paste can avoid the problem of release of formaldehyde by using the prior discharge agent, and is favorable for human health and ecological environmental protection.

Description

Technical field: [0001] The invention relates to a formaldehyde-free discharge printing paste for real silk, a preparation method thereof, and a discharge printing process using the discharge printing paste. Background technique: [0002] Silk fabric has the properties of soft luster, elegant appearance, soft texture, comfortable wearing, smoothness, breathability, and good skin care and health care effects. Discharge printing of silk fabrics is an important means to develop high-grade silk products. Discharge printing is a printing process that prints on dyed textiles, and with the help of chemicals (discharge agent) in the discharge printing paste, the ground color dye is partially destroyed and decolorized to obtain a pattern. Discharge printing can avoid the color recolor problem caused by direct printing, and achieve the effect of exquisite printing. Acid dyes have the characteristics of complete chromatograms and bright colors. Acid extraction is currently the main m...

Claims

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Application Information

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IPC IPC(8): D06P5/15D06P3/04
Inventor 邵建中刘今强陈斌郑今欢戚栋明
Owner ZHEJIANG SCI-TECH UNIV
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