Method for dyeing ultrafine-denier porous nylon fabric

A dyeing method and ultra-fine denier technology, applied in the direction of dyeing, textile and papermaking, etc., can solve the problems of high dyeing rate, high unevenness of fiber shape, fast dyeing rate, etc., to improve quality and grade, overcome the Difficult to dye, controllable dyeing effect

Inactive Publication Date: 2011-11-23
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention is aimed at a brand-new product of ultra-fine denier nylon fabric, which has the characteristics of fine monofilament fineness, large surface area, high fiber shape unevenness, and differences

Method used

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  • Method for dyeing ultrafine-denier porous nylon fabric
  • Method for dyeing ultrafine-denier porous nylon fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1. The dyeing method of superfine denier and porous nylon fabric in this example is suitable for fabrics woven from 22dtex / 35f superfine denier nylon filaments.

[0018] In the dyeing and finishing pretreatment steps of this example, in the cold stack process, the amount of alkali used is 60 g / L, and the alkali used is sodium hydroxide; the amount of penetrant used is 1 g / L, and the penetrant used is FK-ST15B; the cold stack time 15 h; the amount of open-width desizing agent in the process of desizing is 2g / L, and the desizing agent used is Deter S-37; the desizing temperature is controlled at 60~105℃; the temperature is controlled at 50~ 100℃; the temperature is controlled at 50~80℃ during the hot water washing process;

[0019] In the cold exhaust dyeing step of this example, the fabric is immersed in the dye solution at room temperature. The dye is an acid dye with a dye concentration of 2%; the leveling agent dosage is 0.8 g / L, and the leveling agent is Cib...

Embodiment 2

[0023] Example 2. The dyeing method of ultrafine denier and porous nylon fabric in this example is suitable for fabrics woven from 44dtex / 72f ultrafine denier nylon filaments.

[0024] In the dyeing and finishing pretreatment steps of this example, during the cold stack process, the amount of alkali used is 80 g / L, and the alkali used is sodium hydroxide; the amount of penetrant used is 3 g / L, and the penetrant used is FK-ST15B; the cold stack time During the open-width desizing process, the dosage of the open-width desizing agent is 3g / L, and the desizing agent used is Deter S-37; the desizing temperature is controlled at 60~105°C; the temperature during the soaping process is controlled at 50~ 100℃; the temperature is controlled at 50~80℃ during the hot water washing process;

[0025] In the cold exhaust dyeing step of this example, the fabric is immersed in the dye solution at room temperature, the dye is an acid dye, and the dye concentration is 2%; the leveling agent con...

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Abstract

The invention relates to a method for dyeing an ultrafine-denier porous nylon fabric, which aims to solve the technical problems of difficult control on dyeing, probably caused uneven dye, color difference and the like in the dyeing process. The method is applicable to a fabric formed by weaving ultrafine-denier nylon filaments of 22dtex/35f and 44dtex/72f. The method is characterized by selecting optimized parameters for each step, especially the progressive heating-dyeing step. In the progressive heating-dyeing step, the heating rate is controlled at 1.0 DEG C/min when the temperature is below 55 DEG C, and the heating rate is controlled at 0.5 DEG C/min when the temperature is above 55 DEG C; and the dyeing temperature is controlled to range between 95 DEG C and 99 DEG C, the dyeing time is controlled to be 45 minutes, and the pH value is controlled to range between 4 and 6. Thus, the dyeing evenness can be ensured.

Description

[0001] technical field [0002] The invention relates to the field of fabric dyeing and finishing, in particular to a method for dyeing ultrafine denier and porous nylon fabrics. Suitable for new fabrics woven from 22dtex / 35f, 44dtex / 72f superfine denier nylon filaments. Background technique [0003] There is no strict definition for ultrafine denier fibers. Generally speaking, fibers with a single filament fineness lower than 0.55dtex are defined as ultrafine denier fibers; there are many methods for producing ultrafine denier fibers, and the current methods mainly include weight loss method, stripping method and direct spinning method. The technology of producing superfine denier fiber by direct spinning is simple and environmentally friendly, and it is being paid more and more attention to and popularized. At present, the technology of producing ultra-fine polyester fiber by direct spinning method is relatively mature, but there is still a technical bottleneck in the pr...

Claims

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Application Information

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IPC IPC(8): D06P3/24D06P1/39D06P5/00
Inventor 马清芳蒋剑雄来国桥郝超伟陆达天
Owner HANGZHOU NORMAL UNIVERSITY
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