Phase change inks

Details Phase change inks Phase change inks

C - Chemistry, Metallurgy

09

D

C09D 11/12 (2006.01) C08K 5/20 (2006.01) C09D 191/06 (2006.01) C09D 123/06 (2006.01)

Patent

CA 2568928

Disclosed is a phase change ink composition comprising an ink carrier and a colorant, said ink being suitable for use in an indirect printing process wherein the ink is jetted from a printhead onto a heated intermediate transfer member and subsequently transferred from the intermediate transfer member to a final recording substrate, wherein: (a) the ink can be jetted from the printhead onto the intermediate transfer member when the ink is maintained at a temperature of about 125°C or lower; (b) the ink can be jetted without purging from a printer maintained at a standby temperature of about 100°C or lower; and (c) the ink has a cohesive failure temperature of at least about 56°C.

La présente divulgation traite d'une composition d'encre à changement de phase comprenant un encrier et un colorant, ladite encre convenant à un procédé d.'impression indirect, tandis que l'encre est injectée d'une tête d'impression, sur un élément de transfert intermédiaire chauffé, et ensuite transféré de l'élément de transfert intermédiaire jusqu'au support d'enregistrement final. a) L'encre peut être injectée de la tête d'impression sur l'élément de transfert intermédiaire, lorsque l'encre est maintenue à une température d'environ 125 degrés Celsius ou moins. b) L'encre peut être injectée sans purge, d'une imprimante maintenue à une température de réserve d'environ 100 degrés Celsius ou moins; et c) L'encre présente une température de rupture de cohésion d'au moins environ 56 degrés Celsius.

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