Environmental protection dyeing technology

Abstract

The invention relates to an environmental protection dyeing technology, which comprises the following steps: 1) a fabric paint pad dyeing novel process flow is characterized by comprising steps of preparing a semi-finished product, performing cation modification, drying, performing pad dyeing on the paint, predrying and baking; and 2)a yarn paint continuous annular pad dyeing technology which is characterized in that the technology employs a continuous pad dyeing innovation technology of yarn pre-treatment and after-treatment of paint dyeing, so that a traditional yarn intermittent dyeing mode such as reeled yarn and cheese dyeing is changed. The process flow comprises the steps of warping yarn, unwinding a warp beam, pre-treating, drying, dyeing the paint, predrying, baking, (sizing), and doffing the beam. The technology changes a traditional desizing / dyeing two bath process to a desizing / dyeing one bath process, technology flow is greatly shortened, printing and dyeing treatment time is shortened by about 50%, water consumption and sewage discharge capacity are reduced by about 50%, power consumption is reduced by about 50%, coal amount is reduced by about 40%, and comprehensive cost is saved by about 45%.

Description

technical field [0001] The invention relates to an environmental protection dyeing technology, which belongs to the field of environmental protection technology. Background technique [0002] The dyeing of textiles can be carried out at any stage, and can be dyed at different stages such as fibers, yarns, fabrics and garments: [0003] 1. Loose fiber dyeing: the dyeing of fiber or loose fiber before spinning is put into a large dyeing vat and dyed at an appropriate temperature; most of the colored spun yarns are dyed with loose fiber (there is also the effect of single dyeing of different fibers) , often used in woolen fabrics; [0004] 2. Top dyeing: this also belongs to the fiber dyeing before the fiber is formed into a yarn. The purpose is the same as that of loose fiber dyeing, to obtain a soft color mixing effect; top dyeing is generally used for combed wool yarn and wool fabric; [0005] 3. Yarn dyeing: dyeing yarn before weaving, generally used for dyed fabrics, swe...

AI Technical Summary

Problems solved by technology

[0009] ③ Warp beam dyeing - it is a large-scale package dyeing. Before the weaving is manufactured, the warp beam (warping) must be made first, and the yarn of the entire warp beam is dyed, such as combining the sizing machine and the warp beam yarn Bundle dyeing; because it is a warp beam, it is mostly suitable for woven dyeing; but with the emergence of warp beam doffing, we can turn the yarn on the warp beam after dyeing into cheese yarn, and the scope of use of this dyed yarn is More broadly, for example, the vat dyeing method used in indigo dyeing can only be solved well by using warp beam dyeing. If there is no warp beam doffing, it is difficult to achieve