Bleaching process using radiation and free-radicals

Details Bleaching process using radiation and free-radicals Bleaching process using radiation and free-radicals

D - Textiles, Paper

06

L

D06L 3/04 (2006.01) B01J 19/08 (2006.01) B01J 19/12 (2006.01) D21C 9/10 (2006.01) B27K 5/02 (2006.01)

Patent

CA 2547921

This invention concerns the application of a very well known technology (Radiation Curing) to a process for bleaching garments or fabrics dyed with indigo or other dyes. This invention replaces the STONE WASH process used in the bleaching of jeans with enzymatic preparations. To produce the bleaching effects the process uses radiation from either Ultraviolet light, Electron Beam, LASER lights, Infrared lights, or a combination of any of them, and Photoinitiators that are the source of free radicals. The photoinitiators are contained in Bleaching Media that are liquid formulations, soft paste formulations or solid paste formulations.

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