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Method for shortening dyeing time during application of lanasol dye to cashmere non-red dyeing

A technology of dyeing time and lanase, applied in the field of dyeing, can solve the problems of increased damage to dyed fibers, excessive processing time, and large waste water discharge, reducing dyeing, facilitating post-treatment cleaning, and machine production. Efficient effect

Active Publication Date: 2021-06-04
宁波康赛妮新纤维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This step of repeatedly heating up and washing with hot and cold water during the net bath not only causes increased damage to the dyed fiber, but also causes high source consumption, large waste water discharge, low production efficiency, and low dyeing output due to excessively long post-dyeing treatment time. low level problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: The method of shortening the dyeing time when Lanersol dye is used for cashmere red dyeing, in terms of fabric weight percentage, when the amount of Lanersol dye is ≤1%, the following steps are included: Step A1: heating the dyeing solution to 25°C, then add acetic acid or formic acid to adjust the pH of the dye solution to 4, based on the weight percentage of the fabric, and at the same time add 1.5% aliphatic amine polyoxyethylene ether anion-nonionic surfactant, and then circulate for at least 10 minutes; Step A2: In terms of fabric weight percentage, add no more than 1% Lanersol dye, then circulate for at least 10 minutes, then increase the temperature to 80°C at a rate of 0.5°C / min, and keep warm for 40 minutes after the final heating; Step A3: Rinse the fabric After rinsing, the fabric is post-treated, adding ammonia to the treatment solution to make the pH of the treatment solution reach 7, in terms of fabric weight percentage, while adding 2.0% sodium ...

Embodiment 2

[0021] Example 2: The method of shortening the dyeing time when Lanersol dye is used for dyeing cashmere red, in terms of fabric weight percentage, the following steps are included when the amount of Lanersol dye is ≤ 1%: Step A1: heating the dyeing solution to 35°C, then add acetic acid or formic acid to adjust the pH of the dyeing solution to 6.5, based on the weight percentage of the fabric, and add 2.0% fatty amine polyoxyethylene ether anion-nonionic surfactant at the same time, and then circulate for at least 10min; Step A2 : Based on the weight percentage of the fabric, add no more than 1% Lanersol dye, then circulate for at least 10 minutes, then raise the temperature to 99°C at a rate of 1.5°C / min, and keep warm for 50 minutes after the final heating; step A3: The fabric is rinsed, after the rinsing is finished, the fabric is post-treated, and ammonia water is added to the treatment solution to make the pH of the treatment solution reach 8, in terms of fabric weight pe...

Embodiment 3

[0022] Embodiment 3: The method for shortening the dyeing time when Lanersol dye is used for cashmere red dyeing, in terms of fabric weight percentage, the following steps are included when the amount of Lanersol dye is less than or equal to 1%: Step A1: heating the dyeing solution to 30°C, then add acetic acid or formic acid to adjust the pH of the dye solution to 5, based on the weight percentage of the fabric, and at the same time add 1.6% fatty amine polyoxyethylene ether anion-nonionic surfactant, and then circulate for at least 10 minutes; Step A2: In terms of fabric weight percentage, add no more than 1% Lanersol dye, then circulate for at least 10 minutes, then increase the temperature to 90°C at a rate of 1°C / min, and keep warm for 45 minutes after the final heating; Step A3: Rinse the fabric After rinsing, the fabric is post-treated, adding ammonia to the treatment solution to make the pH of the treatment solution reach 7.5, in fabric weight percent, while adding 2.0%...

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PUM

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Abstract

The invention discloses a method for shortening dyeing time during application of lanasol dye to cashmere non-red dyeing, and relates to a dyeing method. The method comprises 6-10 steps according to different dye materials. Compared with the prior art, the method has the advantages that novel fatty amine modified polyoxyethylene ether anionic and nonionic surfactant dyeing auxiliaries are adopted, so that the operation time when the dye auxiliaries are added is shortened, the heat preservation time during dyeing post-treatment and the hot washing frequency during post-treatment are shortened and reduced, the production efficiency is greatly improved, the cost is saved, the production concept of energy conservation, emission reduction, quality improvement and efficiency improvement is met, and the product quality and the production delivery time are guaranteed.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a dyeing method. Background technique [0002] Before dyeing cashmere products, reactive, acidic, or neutral dyes are generally selected for dyeing. The auxiliary agents basically use traditional FFA, Abaig B, SET, and other auxiliary agents for dyeing production. The traditional process uses a lot of auxiliary agents, and the production time of the process It is too long, the cost of auxiliaries and water, electricity and electricity is high, and the wool takes a long time in dyeing production, which has a great impact on the feel of raw materials and fiber strength, especially for the production of worsted and semi-worsted product orders, pre-treatment and post-dyeing process steps Many, long cleaning time, after the production of medium-dark order is completed, many batches of inspections found that the strength of raw materials has dropped, sticky, and wrapping around the to...

Claims

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Application Information

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IPC IPC(8): D06P1/38D06P1/607D06P1/00D06P3/14D06P5/10D06P5/02
CPCD06P1/38D06P1/6076D06P1/0032D06P3/148D06P5/10D06P5/02
Inventor 彭双陈超陈文浩薛惊理
Owner 宁波康赛妮新纤维科技有限公司
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