Thermotransfer copy process wherein a heat sink is positioned within the composite

Claim 1

IN A THERMALLY INDUCED TRANSFER COPYING PROCESS IN WHICH A COPY SHEET IS PLACED OVER AN ORIGINAL HAVING INDICIA THEREON TO BE COPIED AND A TRANSFER SHEET HAVING A HEAT MELTABLE DYED COATING THEREON IS PLACED OVER THE COPY SHEET WITH THE SAID COATING ADJACENT TO SAID COPY SHEET, THE IMPROVEMENT COMPRISING: PROVIDING SAID COPY SHEET WITH A SUBSTANTIALLY SMOOTH, UNIFORMLY DENSE, TRANSPARENT AND CONDUCTIVE HEAT SINK WHICH IS SUBSTANTIALLY AS TRANSMISSIVE TO RADIATION AS SAID COPY SHEET BETWEEN SAID COPY AND SAID ORIGINAL; THEREAFTER APPLYING INTENSE, RICHLY INFRA-RED IRRADIATION TO SAID ORIGINAL THROUGH SAID TRANSFER AND COPY SHEETS AND THROUGH SAID HEAT SINK, WHEREBY THE TEMPERATURE OF SAID TRANSFER SHEET IS CAUSED TO RISE MORE RAPIDLY THAN THAT OF SAID COPY SHEET AND SAID HEAT SINK RESPECTIVELY THEREBY CAUSING A FLOW OF HEAT THEREFROM TOWARD SAID HEAT SINK; SAID HEAT SINK BEING MORE TRANSPARENT THAN SAID ORIGINAL AND SELECTED IN RELATION THERETO TO TRANSMIT SUFFICIENT INCIDENT RADIATION TO SAID ORIGINAL TO CAUSE SAID ORIGINAL TO RISE IN TEMPERATURE DUE TO SAID INCIDENT IRRADIATION AT ABOUT THE SAME RATE AS SAID HEAT SINK; WHEREBY VOIDS ON THE SURFACE OF SAID ORIGINAL HAVE NO SUBSTANTIAL INFLUENCE IN THE HEAT FLOW PATTERN BETWEEN SAID ADJACENT MEMBERS.