Bar code readable jet ink compositions

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 11/10 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2171524

Disclosed are jet ink compositions comprising water, a water soluble or dispersible polymeric resin, a colorant having infrared absorption in the range of 700 - 1100 nm, an alkylene glycol having 3-6 carbon atoms, and at least one mono- or di-alkyl ether of an alkylene glycol having 2- 6 carbon atoms wherein the alkyl group consists of 1-6 carbon atoms, the jet ink compositions having a surface tension of less than 35 dynes/cm. An improved method of jet printing is also disclosed, the improvement comprising using the inventive ink composition.

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