Ink composition for ink-jet recording

Details Ink composition for ink-jet recording Ink composition for ink-jet recording

C - Chemistry, Metallurgy

09

D

31/153

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

Patent

CA 1157639

ABSTRACT OF THE DISCLOSURE The ink composition for ink-jet comprises a water- soluble acid or direct dye and a polyethylene glycol with a polymerization degree of 4 to 25. The composition has a vis- cosity of 4 to 20 c.p.s. at 25°C and a surface tension of 40 to 60 dyn/cm. With this ink composition no serious clogging occurs at the orifice, no substantial changes in physical and chemical properties or no precipitate will be caused during storage. Recorded images have sufficient contrast, and, therefore, stable and clear recording can be maintained for a long period and even after long storage.

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