Back washing free dyeing method for cashmere slivers

A dyeing method and cashmere technology, which is applied in the field of textile printing and dyeing, can solve the problems of rewashing cashmere strands, etc., and achieve the effects of simple process control, convenient and reliable use, and remarkable color brightness

Active Publication Date: 2014-03-12
CONSINEE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem in the prior art that the dyed cashmere strands need to be rewashed, simplify the dyeing process, and improve the fiber quality of the dyed cashmere strands at the same time

Method used

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  • Back washing free dyeing method for cashmere slivers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] When the dye weight / cashmere strands weight ratio is 0.5%, the cashmere strands are wound up layer by layer in the axial direction to form a cylindrical cashmere ball with a central hole with a diameter of 80 mm. The outer diameter of the cashmere ball is 400 mm. Fill the cashmere ball strings on the core of the dyeing cage, pressurize the core cashmere balls and lock the core. The compacted cashmere fiber has a density of 0.1 g / cm3. After filling, hang the cashmere ball into the dye vat. Then put water in the dye vat, heat it to 30°C, turn on the circulation pump of the dye vat, and use the pressure of the circulation pump of the dye vat to make the lotion pass through the cashmere ball and the hole of the cylinder wall from the outside of the cashmere ball to the inside, and enter the core of the cylinder. Then it is sprayed from the top of the barrel core and flows back to the circulation pump of the dye vat. Cycle wash for 10 minutes, then drain the washing solut...

Embodiment 2

[0024] When the dye weight / cashmere strands weight ratio is 0.5%, the cashmere strands are wound up layer by layer in the axial direction to form a cylindrical cashmere ball with a central hole with a diameter of 90 mm. The outer diameter of the cashmere ball is 400mm. Fill the cashmere ball strings on the core of the dyeing cage, pressurize the core cashmere balls and lock the core. The density of compacted cashmere fibers is 0.15 g / cm3. After filling, hang the cashmere ball into the dye vat. Then put water in the dye vat, heat it to 40°C, turn on the circulation pump of the dye vat, and use the pressure of the circulation pump of the dye vat to make the lotion pass through the cashmere ball and the hole of the cylinder wall from the outside of the cashmere ball to the inside, and enter the core of the cylinder. Then it is sprayed from the top of the barrel core and flows back to the circulation pump of the dye vat. Cycle wash for 10 minutes, then drain the washing solutio...

Embodiment 3

[0026]When the dye weight / cashmere strands weight ratio is 0.5%, the cashmere strands are wound up layer by layer in the axial direction to form a cylindrical cashmere ball with a central hole with a diameter of 100 mm. The outer diameter of the cashmere ball is 400mm. Fill the cashmere ball strings on the core of the dyeing cage, pressurize the core cashmere balls and lock the core. The compacted cashmere fiber has a density of 0.2 g / cm3. After filling, hang the cashmere ball into the dye vat. Then put water in the dye vat, heat it to 45°C, turn on the circulation pump of the dye vat, and use the pressure of the circulation pump of the dye vat to make the lotion pass through the cashmere ball and the hole of the cylinder wall from the outside of the cashmere ball to the inside, and enter the core of the cylinder. Then it is sprayed from the top of the barrel core and flows back to the circulation pump of the dye vat. Cycle wash for 10 minutes, then drain the washing soluti...

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Abstract

The invention discloses a back washing free dyeing method for cashmere slivers, which comprises a cashmere sliver filling step, a preprocessing step before dyeing, a cashmere sliver dyeing step, a rinsing processing step after dyeing and a drying step, wherein the cashmere sliver dyeing step includes adding dyeing auxiliaries to circulate; adding acetic acid to adjust PH value; adding dye to circulate; and raising and keeping the temperature; and the rinsing processing step after dyeing is color fixing and rinsing processing in a dye vat. The back washing-free dyeing method for cashmere slivers has the advantages that the processing technology is simplified, the process control is simple, the production efficiency can be apparently improved, and the use is convenient and reliable.

Description

technical field [0001] The invention relates to a dyeing method for cashmere strands, in particular to a dyeing method for cashmere strands without rewashing, and belongs to the technical field of textile printing and dyeing. Background technique [0002] Due to the advantages of light weight, soft luster, good elasticity, wear resistance, moisture absorption and warmth retention, cashmere strands have been widely used in textile products such as clothing and home textiles. [0003] In the early stage of the cashmere sliver industry, the dyeing technology of loose fiber cashmere sliver was widely used, and the processing cycle of this dyeing technology was long. Generally speaking, cashmere strands are wound into balls and immersed in an aqueous solution of dyes. Under certain temperature and pH conditions, the colored groups of the dyes in the dye solution combine with natural-color cashmere strand fibers to give cashmere strands Fiber-rich colors. In the prior art, befor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/607D06P3/14D06P5/06D06L1/12
Inventor 金光张胜军冯玉明
Owner CONSINEE GRP CO LTD
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