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Dyeing and finishing process of polyester fabrics

A dyeing and finishing technology for polyester fabrics, which is applied in the dyeing and finishing process of polyester fabrics, can solve the problems of energy consumption and complicated process steps, and achieve the effect of reducing process time and energy consumption and improving capabilities

Inactive Publication Date: 2015-01-21
ZHEJIANG PROVINCE CHANGXING SILK
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional dyeing and finishing process needs to remove impurities through the refining process, the process steps are complicated, energy-consuming and time-consuming

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] A kind of dyeing and finishing process of polyester fabric of the present invention comprises the following steps:

[0012] a. Desizing: fabric padding desizing solution, adding 4-6g / L oxidation desizing solution, 2-3g / L chelating dispersant, 300-310g / L liquid alkali to the desizing solution;

[0013] b. Dyeing: Prepare the dyeing solution with a bath ratio of 1:8, add 40°C water first, then add disperse dyes, leveling agents and buffers in the water, and heat the dyeing solution at a heating rate of 1.5-2°C / min. After keeping warm at 130°C, dip-dye the fabric for 50 minutes, then cool down the dyeing liquor to 70-80°C and keep warm, add acid reducing agent and dip-dye the fabric for 20 minutes;

[0014] c. Soaping: The fabric is transported to the soaping box through the conveyor belt, and the soap is dynamically rinsed through the circulating soap.

[0015] Wherein, the temperature of the desizing liquid in step a is 95° C., and the speed at which the fabric passes t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses a dyeing and finishing process of polyester fabrics. The dyeing and finishing process comprises the following steps: (a) desizing, namely dipping and rolling the fabrics in desizing liquid, and adding 4-6g of oxidized desizing liquid, 2-3g of chelating dispersant and 300-310g of liquid caustic soda into the desizing liquid per gram; (b) dyeing, namely preparing dyeing liquid according to the bathing ratio of 1:8, firstly adding water at the temperature 40 DEG C, then adding dispersed dyestuff, a dye leveling agent and a buffering agent into the water, heating the dyeing liquid to 130 DEG C at the heating speed of 1.5-2 DEG C / min, then performing heat preservation, dipping the fabrics for 50 minutes, then cooling the dyeing liquid to 70-80 DEG C, then performing heat preservation, adding an acid reducing agent, and dipping and dyeing the fabrics for 20 minutes; and (c) soaping, namely conveying the fabrics into a soaping box by a conveying belt, and carrying out dynamic showering by circulation of soaping liquid. The dyeing and finishing process disclosed by the invention has the advantages that oil stains on the fabrics can be removed with high efficiency, so that the energy-saving and timing-saving effects are achieved.

Description

technical field [0001] The invention relates to a dyeing and finishing process of polyester fabric. technical background [0002] When the polyester fabric with yarn as the warp is pre-desized in the dyeing and finishing process, the concentration of powder chemical sizing agent in the auxiliary tank is very high. These chemical sizing materials are high molecular polymers with high viscosity and easy Agglomeration can easily cause the slurry to stain the cloth surface. On the other hand, during the desizing treatment of spinning oil, the added degreasing aids usually cannot perform good wetting, penetration, blooming, dispersing, solubilizing, and washing lamp effects on the oil stains on the fabric. and oil stains are removed from fibers and fabrics. The traditional dyeing and finishing process needs to remove impurities through the refining process, the process steps are complicated, energy-consuming and time-consuming. Contents of the invention [0003] The technica...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06P3/54
Inventor 凌伟明
Owner ZHEJIANG PROVINCE CHANGXING SILK
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