Paper dye

Details Paper dye Paper dye

C - Chemistry, Metallurgy

09

B

C09B 31/047 (2006.01) C09B 35/023 (2006.01) C09B 35/215 (2006.01) D21H 21/28 (2006.01)

Patent

CA 2277533

This invention relates to a dye having the formula (I) (see formula I) wherein each M is a hydrogen ion, an alkali metal ion, or R a R b R c R d N+ (where R a, R b, R c, and R d are independently hydrogen, C1-C6 alkyl, or C1-C6 hydroxyalkyl). This invention further relates to the use of the dye.

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