Printing and dyeing production technology

A production process and working fluid technology, applied in textile and papermaking, fiber processing, dry cleaning fiber products, etc., can solve the problems of long operation time, environmental pollution, long equipment assembly line, etc., to achieve simple and easy implementation, reduce costs, and simplify feeding Effect

Active Publication Date: 2017-02-22
FUZHOU DESHENG KNITTING & DYEING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this process are: complex procedures, long equipment assembly line, high energy consumption, long working time, working liquid contains a large amount of caustic soda, bleaching agent, stabilizer, etc., high toxicity of discharged wastewater, serious environmental pollution, and high difficulty in treatment
[0008] At present, there are a small number of production processes that combine the three processes of desizing, scouring and bleaching. The combination of desizing, scouring and bleaching reduces processing links, saves energy and water, saves labor and labor, and improves processing efficiency. Contains a large amount of caustic soda, bleaching agent, and stabilizer, and there are also cases where the discharged wastewater is highly toxic and pollutes the environment seriously

Method used

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  • Printing and dyeing production technology
  • Printing and dyeing production technology
  • Printing and dyeing production technology

Examples

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Embodiment Construction

[0106] In order to explain in detail the technical content, structural features, achieved goals and effects of the technical solution, the following will be described in detail in conjunction with specific embodiments and accompanying drawings.

[0107] In this description, the examples involved all adopt cotton cloth as the printing and dyeing cloth.

[0108] A printing and dyeing production process, comprising a singeing step, a pretreatment step, a mercerizing step, a dyeing and printing step, and a finishing step, wherein the pretreatment step includes the following steps, NaCl solution preparation, cloth feeding, electrolysis of NaCl solution, cloth desizing, and refining and bleaching, fabric rinsing and fabric drying, see figure 1 A schematic diagram of the system framework.

[0109] see figure 2 Example shown. The cell body 1 of the reaction cell of this embodiment is rectangular, and the cell body 1 is made of insulating material, such as non-conductive materials ...

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Abstract

A printing and dyeing production technology comprises steps of singeing, pretreatment, mercerization, dyeing and printing as well as finishing, wherein pretreatment comprises the following steps: preparation of a NaCl solution, fabric feeding, electrolysis of the NaCl solution, fabric desizing, refining and bleaching, fabric rinsing and fabric drying. By means of the production technology, the NaCl solution is electrolyzed by negative and positive electrodes, NaOH and various oxides required for procedures of fabric desizing, refining and bleaching are generated, and fabric is desized, refined and bleached integrally. The requirements of fabric desizing, refining and bleaching are met while feeding and procedures of the production technology are simplified. Meanwhile, various biochemical indexes of sewage produced in the whole implementation process of the production technology are remarkably lower than those of sewage produced through an existing production line, and the sewage treatment cost is greatly reduced.

Description

technical field [0001] The invention relates to the production process of textile industry production, in particular to the production process of textile printing and dyeing pretreatment. Background technique [0002] The printing and dyeing industry is the main industry with the largest scale, good foundation and long history in my country's textile industry. It has a development history of nearly a hundred years in my country. The types and quantities of dyes and chemicals used in the printing and dyeing industry are the largest. Since a large number of natural impurities contained in printing and dyeing varieties will affect the subsequent processing and product quality, chemical methods need to be used to remove them. [0003] In the prior art, the scouring and bleaching process of textile dyeing and printing includes three processes of desizing, scouring and bleaching. [0004] During weaving, warp yarns are subject to greater tension and friction due to the action of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L1/14D06L4/23D06M11/38
CPCD06L1/14D06M11/38
Inventor 董建人吴茂银俞宏斌
Owner FUZHOU DESHENG KNITTING & DYEING CO LTD
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