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During the dyeing process, the dye must become close and even with the material in order to produce a uniform color that is fast to moisture, heat, and light. [5] Due to their superior fastness properties and simple application, reactive dyes are currently the most common type of dye for cotton dyeing. [6] The CPB technique uses less water and ...
The fabric piece is then moved down from the wound roller, through the dye solution and back onto the other roll. The rollers can be reversed so that the process of unwinding and winding can be done multiple times until the dyeing process is complete. Once the process has finished the dye bath is cooled and the fabric is taken out and dried ...
The like charges repel each other, and the addition of salt aids in dyeing by generating a positive charge on the cotton surface. [7] [8] The industry has predominantly used reactive dyes to color knitted cotton goods. The treatment of salt-laden, colored effluent generated by the dyeing process is one of the industry's primary concerns. Cotton ...
Stripping is a method of reprocessing employed in the textile industry, wherein the removal of color from fabric becomes essential during the dyeing process. This approach can be employed to rectify any complications encountered during the dyeing process or to alter the color of surplus fabric for subsequent utilization.
In cotton, non-cellulosic substances such as waxes, lipids, pectic substances, organic acids contribute to around ten percent of the weight. [13] Cotton, in particular, has fewer impurities than wool. [46] Cotton scouring refers to removing impurities such as natural wax, pectins, and non-fibrous matter with a wetting agent and caustic soda.
Printing is the process of adding localized or patterned color to fabrics. [2] Discharge printing involves dyeing first with dischargeable dyes; subsequently, the dyed fabric undergoes a printing process involving the application of a chemical-infused paste that effectively removes the color imparted by the dye.
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Inkodye is a type of vat dye that uses light rather than oxygen to "fix" the dye, with a wide variety of possible effects. These dyes, which are chemically similar to vat dyes, are developed by light instead of being applied in an oxygen-free bath and being developed in the fabric by exposure to oxygen. Inkodyes are true dyes, not fabric paints.