Figure

Claim 1

IN A METHOD OF MAKING REPRODUCTIONS FROM AN ORIGNAL SHEET (A) WHICH EMPLOYS AN ASSEMBLAGE OF SHEETS INCLUDING, (1) AN ORIGINAL SHEET HAVING IMAGE PORTIONS WHICH ARE INFRARED ABSORBING-HEAT GENERATING AND NONIMAGE PORTIONS WHICH ARE SUBSTANTIALLY NONINFRARED ABSORBING-HEAT GENERATING, (2) A COPY SHEET, AND (3) A TRANSFER SHEET MADE UP OF A BASE SHEET CARRYING ON ONE SURFACE THEREOF A LAYER OF TRANSFER MATERIAL WHICH IS SOLID AT ROOM TEMPERATURE AND SOFTENABLE AT TEMPERATURES ABOVE NORMAL ROOM TEMPERATURE; AND (B) WHICH COMPRISES THE STEPS OF, (1) FORMING AN ASSEMBLY OF SHEETS WHEREIN, (A) THE LAYER OF TRANSFER MATERIAL IS IN SURFACE CONTACT WITH SAID COPY SHEET, AND (B) THE ORIGINAL SHEET IS IN SURFACE CONTACT WITH THE BASE SHEET OF SAID TRANSFER SHEET; AND (2) DIRECTING THE SUFFICIENT QUANTITY OF RADIATIONS RICH IN INFRARED DIRECTLY ONTO SAID ORIGINAL SHEET PRIOR TO SAID RADIATIONS STRIKING THE OTHER SHEETS THE ASSEMBLAGE TO GENERATE SUBSTANTIALLY INSTANTANEOUSLY A TEMPERATURE RISE IN THE IMAGE PORTIONS OF THE ORIGINAL SHEET, THEREBY TO REDUCE THE MATERIAL IN THE CORRESPONDING AREAS OF THE TRANSFER MATERIAL TO A SOFTENED CONDITION, SO THAT SAID SOFTENED MATERIAL IN SAID AREAS TRANSFERS TO SAID COPY SHEET TO PRODUCE AN IMAGE; THE IMPROVEMENT WHEREIN THE ORIGINAL SHEET AND THE BASE SHEET OF THE TRANSFER SHEET HAVE THE FOLLOWING CHARACTERISTICS: ORIGINAL SHEET: CALIPER MILS 1.1-2.6 SMOOTHNESS (SHEFFIELD 3.0-320 INFRARED DENSICHRON RANGE 0.00-0.10 INFRARED HOMOGENEITY 0.00-0.10 ASH CONTENT PERCENT 0.8-10 OPACITY (BAUSCH & LOMB OPACIMETER), MAXIMUM 80 BASE SHEET OF THE TRANSFER SHEET: CALIPER MILS 0.9-2.9 SMOOTHNESS (SHEFFIELD) 17-260 DENSICHRON RANGE 0.00-0.30 INFRARED HOMOGENEITY 0.00-0.05