Heterogeneous reactive ink composition

C - Chemistry – Metallurgy – 09 – D

Patent

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C09D 11/00 (2006.01)

Patent

CA 2528655

An ink composition includes a colorant, a reactive polymer latex such as an epoxy copolymer latex, an optional dissipatable polymer, a dispersant such as a sulfonated polyester, and a liquid vehicle such as water. The ink composition is a stable liquid at ambient temperature, but becomes a gel upon heating or removal of part of the liquid vehicle.

Divulgation d'une composition d'encre comprenant un colorant, un latex polymère réactif tel qu'un latex de copolymère époxydique, optionnellement un polymère dispersable, un dispersant tel qu'un polyester sulfoné, et un vecteur liquide tel que l'eau. La composition d'encre est un liquide stable à température ambiante, mais qui se gélifie lorsqu'elle est chauffée ou lorsqu'une partie du vecteur liquide est éliminée.

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