One bath process-based desizing dyeing method of size-containing polyester fabrics and special auxiliaries for dyeing method

A dyeing method and a technology of bath additives, which are applied in dyeing methods, textiles, papermaking, dry-cleaning fiber products, etc., can solve the problems of high dye selectivity, strong dye selectivity, poor reproducibility, etc., and achieve low pollution discharge and energy efficiency. The effect of low consumption and short process

Active Publication Date: 2014-12-10
BEIJING CTA TEX CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process greatly saves water, electricity, steam, energy saving and emission reduction, and alkaline bath dyeing can reduce the problem of color flower and white powder caused by oligomers, but there are also the following main problems: polyester alkaline bath dyeing has been studied for many years, so far The main reason why it has not been fully promoted is that some disperse dyes, such as amido and ester groups, undergo hydrolysis under high-temperature alkaline conditions, and the color and light change greatly, so the selectivity to dyes is large, such as disperse deep

Method used

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  • One bath process-based desizing dyeing method of size-containing polyester fabrics and special auxiliaries for dyeing method
  • One bath process-based desizing dyeing method of size-containing polyester fabrics and special auxiliaries for dyeing method
  • One bath process-based desizing dyeing method of size-containing polyester fabrics and special auxiliaries for dyeing method

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Example 1. Preparation of one-bath auxiliary for desizing and dyeing polyester pulp-containing fabric

[0050] According to the ratio (wt%) of each component shown in Table 1, a bath assistant A and a bath assistant B were prepared.

[0051] Table 1 Formulation composition of different embodiments

[0052]

[0053] The wetting emulsifier in the scheme 1 is a mixture of emulsifier TO7, emulsifier TO3, isotrideceth phosphate TEP and secondary alkyl sulfonate SAS60, wherein the emulsifier TO7, emulsifier The mass parts of TO3, iso-tridecanol polyether phosphate TEP and secondary alkyl sulfonate SAS60 are 25, 15, 30 and 30 in order; the leveling and dispersing agent is isopropyl phthalimide, A mixture of glyceryl ether polyoxyethylene ether (average EO=20) oleate and styrene phenol polyoxyethylene ether (average EO=17) ammonium sulfate, in which isopropyl phthalimide, glyceryl ether The mass parts of polyoxyethylene ether (average EO=20) oleic acid ester and styrene phenol polyo...

Embodiment 2

[0061] Example 2. One-bath process of desizing and dyeing polyester pulp-containing fabric using one-bath auxiliary agent A and one-bath auxiliary agent B

[0062] The process flow of the present invention: enter 3000kg of water into the dyeing machine→into the fabric→add one-bath auxiliary agent A→add dye after circulating for 10min→circulate for 10min and then increase the temperature to 130℃ at a rate of 1.5℃ / min after 10min→heat preservation for 50min→decrease the temperature to 85℃→ For every liter of water, add a bath auxiliary agent B and sodium persulfate, carry out reduction cleaning at 85°C for 30min→drain, and wash in 50°C warm water for 15min→distribute cloth.

[0063] The factory currently uses the conventional process flow: 3000kg water into the dyeing machine → 300kg fabric → 15kg sodium hydroxide, 3kg chelating dispersant FK-422D3, 3kg wetting agent FK-st15, 3kg desizing agent FK-608 → heating to 100℃, keep for 20min→cool down, drain→inlet water→heat up to 80℃, wash...

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Abstract

The invention discloses a one-bath process-based desizing dyeing method of size-containing polyester fabrics and special auxiliaries for the dyeing method. The method comprises the following steps: putting the size-containing polyester fabrics in water, adding one bath auxiliary A to the water, mixing thoroughly and then adding a dye to the water, mixing thoroughly again and then orderly performing heating, heat preservation and cooling treatment on the obtained system containing the fabrics; next, adding one bath auxiliary B and sodium hydrosulfite to the cooled system for reductive cleaning; and finally, discharging residual liquid and cleaning with warm water, thereby obtaining the desized and dyed polyester fabrics. The one bath auxiliary A comprises the following components in percentage by mass: 15%-20% of wetting emulsifier, 15%-20% of level dyeing diffusant, 4%-6% of chelating disperse agent and the balance being water. The one bath auxiliary B comprises the following components in percentage by mass: 15%-30% of sodium polyacrylate, 20%-40% of sodium hydroxide and 40%-60% of sodium carbonate. The one-bath process-based desizing dyeing method of the size-containing polyester fabrics is only carried out in one bath, and therefore, the processing time is obviously shortened and the quality of the fabrics can be guaranteed favorably; a low amount of water is used and water can be saved by 80%; the energy consumption is low; few types of auxiliaries are utilized.

Description

Technical field [0001] The invention belongs to the technical field of dyeing and finishing processes for polyester woven fabrics in the textile printing and dyeing industry, and specifically relates to a one-bath method for desizing and dyeing polyester pulp-containing fabrics and a special auxiliary agent. Background technique [0002] Polyester is a synthetic fiber that is widely used in textiles and has excellent comprehensive properties. The polyester filament fabric must be sizing before weaving, so that the surface of the thread is covered with a smooth, flexible and firm sizing film to enhance the cohesion and abrasion resistance of the polyester filament, so that it can withstand the various weaving process. Friction and tension make the weaving production go smoothly under the requirements of high quality and high yield. [0003] Under normal circumstances, desizing treatment must be carried out before dyeing, otherwise it will affect the uniformity of fabric dyeing, the...

Claims

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Application Information

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IPC IPC(8): D06P1/613D06P1/62D06P1/642D06P1/52D06P1/667D06P1/673D06P1/16D06P3/54D06L1/14
Inventor 刘夺奎袁东宋春华朱文兵孙志秋
Owner BEIJING CTA TEX CHEM
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