Ink formulations by mixing anionic waterfast dyes containing...

Details Ink formulations by mixing anionic waterfast dyes containing... Ink formulations by mixing anionic waterfast dyes containing...

C - Chemistry, Metallurgy

09

D

31/153

C09D 11/02 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2038599

INK FORMULATIONS BY MIXING ANIONIC WATERFAST DYES CONTAINING TWO OR MORE CARBOXYL GROUPS ABSTRACT OF THE DISCLOSURE Inks are provided comprising (a) at least two dyes corresponding to the formula Image I wherein W is COOH, X is H, or COOH, Y is H, COOH, or SO?H, Z is H, COOH, or SO3H, and R is H, CH2COOH, or CH2CH2COOH; with the proviso that there are at least two COOH groups and that the number of COOH groups is equal to or greater than the number of SO3H groups, and (b) a solvent which may be water or a mixture of water and a water-soluble organic solvent provide excellent waterfast prints on paper. The inks preferably have a pH from about 7 to about 9.5. Also preferably, a phosphate is added to reduce kogation and a metal chelating agent is added to further reduce nozzle clogging.

Affiliated with

Also associated with

Rating

Ink formulations by mixing anionic waterfast dyes containing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ink formulations by mixing anionic waterfast dyes containing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ink formulations by mixing anionic waterfast dyes containing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1774250