Method of eliminating or preventing the brightening effect...

Details Method of eliminating or preventing the brightening effect... Method of eliminating or preventing the brightening effect...

C - Chemistry, Metallurgy

08

G

402/171, 8/52

C08G 73/06 (2006.01) D06L 3/12 (2006.01) D21H 21/30 (2006.01)

Patent

CA 1051144

Abstract of the Disclosure A method for eliminating or preventing the brighten- ing effect on materials, particularly fibrous materials such as textiles and paper, of anionic optical bright- ening agents involving the use of hydrosoluble acid addition salts or quaternary ammonium salts of compounds containing the group of formula: Image wherein the benzene radical is linked within the group at its m- or p-positions.

211769

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