Abrasion-resistant ink compositions and methods of use

Details Abrasion-resistant ink compositions and methods of use Abrasion-resistant ink compositions and methods of use

C - Chemistry, Metallurgy

09

D

C09D 11/10 (2006.01) A61L 15/56 (2006.01)

Patent

CA 2304315

This invention relates to ink compositions that include a stable nonpolyethylene-containing aqueous dispersion of pigment and particles of a urethane polymer. Preferably the composition further includes a cross-linker capable of cross-linking the urethane polymer. The compositions are useful for printing on flexible or elastomeric substrates. These ink compositions demonstrate increased durability, in particular abrasion resistance, abrasion resistance during stretch and water resistance.

L'invention concerne des compositions d'encre qui comprennent une dispersion aqueuse contenant du non polyéthylène stable, de pigment et de particules d'un polymère uréthane. De plus, lesdites compositions comprennent, de préférence, un agent de réticulation capable de réticuler le polymère uréthane. Elles sont utiles pour l'impression sur des substrats souples ou élastomères et présentent des propriétés de durabilité accrue, notamment de résistance à l'abrasion, de résistance à l'abrasion pendant l'étirement et de résistance à l'eau.

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