Printers and copiers with pre-transfer substrate heating

Details Printers and copiers with pre-transfer substrate heating Printers and copiers with pre-transfer substrate heating

G - Physics

03

G

G03G 13/16 (2006.01) G03G 15/16 (2006.01)

Patent

CA 2375624

A method of transferring an image on a surface to a substrate comprising: a) heating the surface to a first temperature above a temperature at which the image adheres to the substrate; b) heating the substrate to a second temperature above ambient temperature and below the first temperature; c) pressing the substrate to the surface; d) cooling the image while it is in contact with both the surface and the substrate such that it cools during said contact to a third temperature, below a temperature at which its cohesion is greater than its adhesion to the surface; and e) then separating the substrate from the surface, said image being transferred to the substrate.

L'invention concerne un procédé de transfert d'une image sur une surface qui consiste en ce qui suit: (a) chauffer la surface à une première température dépassant la température à laquelle l'image adhère au substrat; (b) chauffer le substrat à une deuxième température supérieure à la température ambiante et inférieure à la première température; (c) presser le substrat contre la surface; (d) refroidir l'image lorsqu'elle est en contact avec la surface et le substrat de manière à ce qu'elle refroidisse pendant ce contact jusqu'à une troisième température, inférieure à la température à laquelle sa cohésion est supérieure à son adhésion à la surface; et (e) séparer le substrat d'avec la surface, l'image étant transférée audit substrat.

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