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In textile processing, stripping is a color removal technique employed to partially or eliminate color from dyed textile materials. Textile dyeing industries often face challenges like uneven or flawed dyeing and the appearance of color patches on the fabric's surface during the dyeing process and subsequent textile material processing stages.
The textile bleaching (or bleaching of textiles) is one of the steps in the textile manufacturing process. The objective of bleaching is to remove the natural color for the following steps such as dyeing or printing or to achieve full white. [1] All raw textile materials, when they are in natural form, are known as 'greige' material. They have ...
The bleaching, dyeing, printing, and finishing stages of the textile industry are mostly to blame because they use water as their main medium to put dyes and chemicals on textiles. [ 15 ] [ 6 ] In the last few decades, it has become an increasingly important part of a dyer's job to think about how dyes and processes affect the environment. [ 1 ]
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.
Batch dyeing (exhaust dyeing) is a method of dyeing a textile material. The method involves the gradual transfer of dye from a dye bath to the textile material in the same piece of equipment. [ 1 ] The various methods of batch dyeing result from the type of machine used in the dyeing process.
Scouring is an essential pre-treatment for the subsequent finishing stages that include bleaching, dyeing, and printing. [5] Raw and unfinished textiles contain a significant amount of impurities, both natural and foreign. It is necessary to eliminate these impurities to make the products ready for later steps in textile manufacturing. [6]
Chemical resist dyeing is a modern textile printing method, commonly achieved using two different classes of fiber reactive dyes, one of which must be of the vinyl sulfone type. A chemical-resisting agent is combined with dye Type A, and printed using the screenprint method and allowed to dry.
Industrial dye degradation is any of a number of processed by which dyes are broken down, ideally into innocuous products. [1] Many dyes, specifically in the textile industry such as methylene blue or methyl red, are released into ecosystems through water waste. [2] Many of these dyes can be carcinogenic.