Cold pad batch (CPB) is a method of dyeing textiles, typically cellulosic fibers such as cotton, in which the textile is impregnated with dye in a cold state, rather than being heated. High dye fixation and no thermal energy are the advantages of the CPB process.[1] CPB-dyed fabrics are less expensive, have a softer hand feel, and have a cleaner surface than exhaust dyed materials. The process may take up to 12 hours in the batching process, depending on the depth of the shade. The disadvantage is that batching is a time-consuming and lengthy process.[2][3] The process was developed in 1960.[4]
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 energy. This approach eliminates the typical salt used to exhaust reactive dyes and provides good dye fixing.[7]
^Khatri, Zeeshan; Memon, Muhammad Hanif; Khatri, Awais; Tanwari, Anwaruddin (2011-11-01). "Cold Pad-Batch dyeing method for cotton fabric dyeing with reactive dyes using ultrasonic energy". Ultrasonics Sonochemistry. 18 (6): 1301–1307. doi:10.1016/j.ultsonch.2011.04.001. ISSN 1350-4177. PMID 21550289.
^Blackburn, Richard (2015-08-28). Sustainable Apparel: Production, Processing and Recycling. Woodhead Publishing. p. 147. ISBN 978-1-78242-357-7.
^Cite error: The named reference :6 was invoked but never defined (see the help page).
^Gordon, S.; Hsieh, Y. L. (2006-12-22). Cotton: Science and Technology. Woodhead Publishing. p. 367. ISBN 978-1-84569-248-3.
^Cite error: The named reference :3 was invoked but never defined (see the help page).
^Gopalakrishnan, M.; Punitha, V.; Saravanan, D. (2019-01-01), Muthu, Subramanian Senthilkannan (ed.), "8 - Water conservation in textile wet processing", Water in Textiles and Fashion, Woodhead Publishing, pp. 135–153, ISBN 978-0-08-102633-5, retrieved 2023-01-07
Coldpadbatch (CPB) is a method of dyeing textiles, typically cellulosic fibers such as cotton, in which the textile is impregnated with dye in a cold...
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