| 摘要 |
A process of forming a color proof comprising imagewise-exposing, by means of a laser, a colorant-donor element comprising a support having thereon: (1) a propellant layer comprising a gas-producing polymer having an infrared-absorbing material associated therewith, the gas-producing polymer being capable of forming a gas upon heating by the laser, and (2) a colorant transfer layer comprising a colorant dispersed in a binder, at least 50% by weight of the binder being a monomeric or oligomeric resin having a molecular weight of less than about 4,000 and the balance being a polymeric resin having a molecular weight of from about 15,000 to about 100,000; the laser exposure taking place through the side of the support of the donor element which does not have the colorant transfer layer thereon, and transferring the colorant transfer layer to a receiving element in juxtaposed position thereon separated by an air gap to obtain the color proof. |
