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Why is the disperse dyeing fastness poor?

Views: 3     Author: Site Editor     Publish Time: 2022-11-18      Origin: Site


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Disperse dye dyeing is mainly because polyester fiber dyeing is high -temperature and high pressure. Although the dye molecules are small, the dye molecules are not guaranteed to enter the fiber during dyeing. The cleaning is to destroy the dye molecules that are not entered into the fiber to improve the solidity and improve the effect of color and light.


Polyester fabrics are dyed dyed, especially in the middle and dark staining. In order to fully remove the low polymers on the surface of the fabric, the dyeing fastness is improved.


The blending fabric generally refers to the blend of the yarn from two or more ingredients, so this kind of fabric has the advantages of these two ingredients. And you can adjust the component ratio to obtain more characteristics of one of the ingredients.


The blending generally refers to the short fiber blend, that is, the two fibers of different ingredients are mixed together in the form of short fiber. For example: polyester cotton blending fabrics are usually called T/C, CVC.T/R, etc. It is woven with polyester short fiber and cotton fiber or artificial fiber blend. It has some advantages: with the appearance and feel of the whole cotton cloth, weakening the chemical fiber luster and chemical fiber feel of polyester cloth, and improve the level.


Increased coloring, because polyester cloth is high -temperature color, and the color fastness is higher than the all -cotton color fastness. Therefore, the coloring of polyester cotton -mixed woven fabrics is also improved compared to the all -cotton color fastness.


However, in order to improve the coloring of polyester cotton cloth, it is necessary to do restoration and cleaning (the so -called R/C), and the post -processing after the high temperature dyeing. Only after reducing and cleaning can the ideal prison.


The short fiber blending allows the characteristics of each composition to be evenly played. Similarly, other ingredients blended can also exert their respective advantages to meet some functional or comfortable or economical requirements. In the blend of cotton or human cotton fiber, the dyeing temperature cannot be higher than the temperature of the full cloth. Under the stimulus of strong alkali or insurance powder, the fiber strong or tearing force for polyester cotton or polyester cotton fiber cloth will be severely reduced, and it is difficult to achieve the quality of the product in the subsequent links.

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