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Technology for printing and dyeing knitted polyester fabrics under conditions of high color fastness and little water

A technology of knitted fabrics and high color fastness, which is applied in the direction of fabric surface trimming, textile material treatment, and continuous processing of textile materials, etc., which can solve the problems of long production process, time-consuming, and high energy consumption, and achieve cost savings, Save water, reduce migration and sublimation effects

Inactive Publication Date: 2019-03-01
绍兴高温印染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As polyester fabrics are more and more widely used in clothing, people pay more attention to the color fastness of polyester. In order to remove the floating color and residual oligomers on the surface of the fabric to improve the color fastness, it is usually necessary to carry out dyeing after dyeing. Reduction cleaning. Conventional reduction cleaning is carried out under alkaline conditions. It is necessary to drain the dyeing residue, perform multiple rinsing and acid neutralization, and wash with water. The production process is long, time-consuming, and energy-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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  • Technology for printing and dyeing knitted polyester fabrics under conditions of high color fastness and little water
  • Technology for printing and dyeing knitted polyester fabrics under conditions of high color fastness and little water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: Polyester knitted fabric is pre-set through high temperature, and the temperature of each joint of the pre-setting setting machine is set as: 190 ℃ * 2 knots, 205 ℃ * 5 knots, 200 ℃, the speed of shaping machine is 38m / min, and the dyeing temperature is normal temperature with 3 ℃ / Min to raise the temperature to 80°C, then raise the temperature to 128°C at 1°C / min, keep warm for 60 minutes, then lower to 80°C at 2°C / min, add acid reducing agent 3g / l to reduce and wash for 15 minutes, wash with water and set the shape with wet cloth Temperature 120℃×6 knots. The results of testing the color fastness of polyester fabrics are: washing fastness 4-5 grades, sunlight fastness 4 grades, dry rubbing fastness 4 grades, wet rubbing fastness 3-4 grades.

Embodiment 2

[0020] Embodiment 2: polyester knitted fabric is pre-set through high temperature, and the temperature of each joint of the pre-setting setting machine is set as: 190 ℃ * 2 knots, 205 ℃ * 5 knots, 200 ℃, the setting speed of a vehicle is 40m / min, and the dyeing temperature is normal temperature at 3 ℃ / Min to raise the temperature to 80°C, then raise the temperature to 130°C at 1°C / min, keep warm for 50 minutes, and lower to 80°C at 2°C / min, add acid reducing agent 4g / l to reduce and wash for 15 minutes, wash with water and set the shape with wet cloth Temperature 125℃×6 knots, the results of testing the color fastness of polyester fabrics are: washing fastness 4-5, sunlight fastness 4-5, dry rubbing fastness 4-5, wet rubbing fastness 4 class.

Embodiment 3

[0021] Embodiment 3: polyester knitted fabric is pre-set through high temperature, and the temperature of each section of the pre-setting setting machine is set as: 190 ℃ × 2, 205 ℃ × 5, 200 ℃, the setting speed is 45m / min, and the dyeing temperature is heated up at 3 ℃ / min at normal temperature to 80°C, then raise the temperature to 132°C at 1°C / min, keep warm for 50 minutes, then drop to 80°C at 2°C / min, add acid reducing agent 5g / l to reduce and wash for 15 minutes, wash with water and set the shape with a damp cloth at 130°C °C×6 knots. The results of testing the color fastness of polyester fabrics are: washing fastness 4-5 grades, sunlight fastness 4-5 grades, dry rubbing fastness 4-5 grades, wet rubbing fastness 4-5 grades.

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Abstract

The invention discloses a technology for printing and dyeing knitted polyester fabrics under the conditions of high color fastness and little water. The technology includes presetting knitted polyester textiles under high-temperature conditions; carrying out direct cooling without draining residual liquid; adding acidic reducing agents and carrying out reduction cleaning. The technology has the advantages that reduction cleaning is carried out by the dye residual liquid, accordingly, surface dyeing can be effectively removed, unattached dye can be removed by means of reduction cleaning, watercan be saved, technological processes can be simplified, and the cost can be saved; wet cloth is directly set at the low temperatures without being dried after cleaning is carried out, high-temperature treatment is omitted, accordingly, migration and sublimation of dye under the condition of high-temperature setting can be reduced, and the technology is favorable for improving the color fastness of polyester textiles.

Description

technical field [0001] The invention relates to the field of printing and dyeing technology, and more specifically relates to a printing and dyeing process of polyester knitted fabric with high color fastness and less water. Background technique [0002] As polyester fabrics are more and more widely used in clothing, people pay more attention to the color fastness of polyester. In order to remove the floating color and residual oligomers on the surface of the fabric to improve the color fastness, it is usually necessary to carry out dyeing after dyeing. Reduction cleaning. Conventional reduction cleaning is carried out under alkaline conditions. It is necessary to drain the dyeing residue, perform multiple rinsing, acid neutralization, and water washing. The production process is long, time-consuming, and energy-consuming. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a printing and dyeing process for polyest...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/54D06P5/02D06P1/16D06B21/00D06C7/02
CPCD06B21/00D06C7/02D06P1/16D06P3/54D06P5/02
Inventor 罗成香孙世凡李雅云罗晓薇李建英
Owner 绍兴高温印染有限公司
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