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Preparation technology of 'weaving and then dyeing' normal pressure one-bath dyeing multi-color fabric

A preparation process, multi-color dyeing technology, applied in the direction of fabrics, dyeing methods, embossed fabrics, etc., can solve the problems of troublesome dyeing, low product quality, increase production costs, etc., to reduce production costs and management troubles, comfortable moisture absorption The effect of perspiration

Active Publication Date: 2019-09-06
青岛新维纺织研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When studying the dyeing of polyester / wool / brocade / viscose / nitrile "five-in-one" blended fleece fabrics, in addition to the phenomenon that the dyeing is not black, the following problems are also found: some fibers are dyed with one dye at the same time (such as nylon, wool and natural silk, etc.), the color is inconsistent; the product grade is low, and the dyeing cost is high; the more blended or interwoven components, the more serious the staining of the fibers and the poorer the color fastness; the residue in the dyed foot water More dyeing materials increase the burden of wastewater treatment; unreasonable blending components bring a lot of trouble to dyeing, so satisfactory results cannot be obtained
This is extremely tedious work, and the dyeing of thousands of yarns not only greatly increases the production cost, but also increases the trouble of inventory and management

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 1

[0020] Preparation of white gray fabric: Select 4 parts of NECDP fiber, 3 parts of ECDP fiber, 1 part of PET fiber and 2 parts of PAN short fiber yarn according to the horizontal stripe structure design, and weave the fabric with a circular net weft knitting machine.

[0021] Dyeing of white gray fabric: choose cationic brilliant blue dye, prepare dye concentration of 2.8% (o.w.f), liquor ratio of 30:1, adjust pH=4-5 with glacial acetic acid and appropriate amount of buffer, add a small amount of dispersant to prepare dye solution. The white fabric is dyed at a temperature of 45°C, and the heating rate of the dyeing bath is controlled at about 1°C / min. The temperature is raised to 100°C and kept at a constant temperature for 45 minutes for boiling dyeing, and then the temperature is lowered to below 60°C. After washing with warm water for many times, it is dried. After dyeing, three different shades of blue and white alternating horizontal stripes are obtained. Use the same pi...

Embodiment 2

[0023] Preparation of white gray cloth: 5 parts of NECDP fiber, 1.6 parts of ECDP fiber, 1.4 parts of CDP fiber, 1 part of PET fiber and 1 part of PA6 fiber were selected according to the design of dobby structure, and weaved by weft knitting circular loom.

[0024] Dyeing of white gray fabric: use cationic red dye concentration of 2.0% (o.w.f), acid black dye concentration of 0.18% (o.w.f), liquor ratio of 30:1, adjust pH=4-5 with glacial acetic acid and appropriate amount of buffer, add a small amount of dispersant The agent is prepared into a dye solution. The white gray cloth is dyed at a temperature of 40°C, and the heating rate is controlled at about 1°C / min. After the dyeing bath temperature rises to 100°C, it is boiled at a constant temperature for 40 minutes. Then lower the temperature to below 60°C, wash with warm water several times and then dry. After dyeing, five different color dobby weave fabrics are obtained. The main test results of color fastness, the stain...

Embodiment 3

[0026] Preparation of white gray fabric: Select 5 parts of NECDP fiber, 2 parts of CDP and PET fiber, and 1 part of PA66 fiber, arrange the bobbins randomly, and weave a cylindrical fabric with a rotary weft knitting machine.

[0027]Dyeing of white gray cloth: the concentration of cationic red dye is 3.0% (0.w.f), the concentration of acid yellow dye is 0.4% (0.w.f), the liquor ratio is 50:1, and pH=4 is adjusted with glacial acetic acid and appropriate amount of buffer -5, add an appropriate amount of diffuser to prepare a dye bath. The dyeing temperature of the white gray cloth is 40°C, the heating rate is controlled at about 1°C / min, and the temperature of the dyeing bath is raised to 100°C, and then boiled at constant temperature for 35 minutes. Then lower the temperature to below 60°C, wash with warm water several times and then dry. After dyeing, a completely random interlaced colorful fabric composed of four different colors of dark, light red, white and yellow is obt...

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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Abstract

The invention discloses a preparation technology of a 'weaving and then dyeing' normal pressure one-bath dyeing multi-color fabric, relates to the technical field of spinning and mainly solves problems in the preparation process of a traditional multi-color fabric. The technology includes the steps: preparing a white gray fabric woven with various fibers with different dyeing performances; dyeingthe white gray fabric. The various fibers with the different dyeing performances comprise at least one of NECDP (novel easy cationic dyeable polyester) profiled fibers or NEDDP (novel easy disperse dyeable polyester) profiled fibers. A previous 'weaving and then dyeing' yarn-dyed weaving production technical idea is newly explored and developed, only several limited white fibers need to be prepared, the complexity of inventory increase due to dyeing of past 'weaving and then dyeing' yarn-dyed fabrics into multi-color yarns according to different designs and colors before weaving is omitted, and production cost and management trouble can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a preparation process of "weaving first and then dyeing" multi-color fabrics dyed in the same bath under normal pressure. Background technique [0002] Prior to the dyeing of multi-color fabrics, coloring was often used. Invented by the ancients in our country, the fabric was immersed in the dyeing solution dissolved in one or more different dyes several times to obtain fabrics of the same color, different shades of color, or fabrics of different colors, which is the prototype of over-dyeing technology. Printing is also a processing technology for multi-color fabrics, that is, the process of printing dyes or paints on fabrics to form patterns, including direct printing, discharge printing, resist printing, pigment printing, transfer printing and digital printing. [0003] Two-color fabrics can be obtained by blending or interlacing fabrics of two fibers with different dyeing pr...

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): D03D15/00D03D21/00D04B1/10D04B1/16D04B21/08D06B3/10D06P1/00D06P1/16D06P1/39D06P1/44D06P3/86
CPCD03D15/00D03D21/00D04B1/102D04B1/16D04B21/08D06B3/10D06P1/00D06P1/16D06P1/39D06P1/445D06P3/8204D10B2321/022D10B2321/10D10B2331/02D10B2331/04D03D15/44
Inventor 张大省王遵元
Owner 青岛新维纺织研究院有限公司
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