A chemical system for providing fibrous materials with stain...

Details A chemical system for providing fibrous materials with stain... A chemical system for providing fibrous materials with stain...

D - Textiles, Paper

06

M

D06M 11/00 (2006.01) D06M 13/00 (2006.01) D06M 13/256 (2006.01) D06M 13/432 (2006.01) D06M 15/00 (2006.01) D06M 15/277 (2006.01) D06M 15/41 (2006.01) D06M 15/576 (2006.01) D06P 1/44 (2006.01) D06P 1/673 (2006.01)

Patent

CA 2139737

Method for imparting stain resistance to fibers, especially wool, which is adaptable to current wool processing methods. Steps comprise: A) treating fibers with a mordant; B) treatment with a combination of sulfonated or disulphonated surfactant to- gether with a stain resist (e.g., syntan); and C) providing treatment with a fluorochemical in either step A, or B, in an amount suf- ficient to improve stain resistant properties. The improved method may be undertaken in the liquor remaining in a dye bath after dyeing fiber (spent bath process). Process pH is acid - 1.5 - 3.0 percent. Advantage: lowers the proportion of stain resist chemical to wool necessary to impart stain resistance. Tip sealing, using polymethacrylic resin and fluorochemical, may be an added step.

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