| 摘要 |
907,732. Registered colour photographic composite prints. THIEMIG, K., and THIEMIG, G., [trading as THIEMIG GRAPHISCHE KUNSTANSTALT UND BUCHDRUCKEREI KOMM.-GES., KARL]. April 20, 1960 [June 10, 1959], No. 13818/60. Class 98 (2). To make prints, particularly for use in prospectus or catalogue work in photogravure, as of the two female figures of Fig. 1 which are understood to be in colour and are to be overlapped as in Fig. 8 without cutting out and matching operations with the various colour records, four separations of each figure are first produced on film, one from each set is picked out, preferably those having widely different density in the overlapping areas, each may be roughly cut away as in Fig. 2 before bringing together as in Figs. 3, 4 to form a negative montage which is printed on to a photographic plate, known as the reference plate, and which shows the overlapping outlines of the two colour sets. A transparent film is then fixed on this reference plate and on it the left-hand female figure and the overlapping areas are separated by covering the remaining areas with opaque ink and the result optically printed to form a mask of the left figure and its overlapping areas in transparent outline. A contact print of this mask is then made and registered with the reference plate for production of a second outline mask, that of the right-hand figure, but omitting the overlapped areas. A first colour separation, say that of the left-hand figure, is then registered with the left-hand mask and exposed on to film, separation and mask are removed and replaced by the corresponding separation and the mask of the right-hand figure in position registered to that of the lefthand assembly, and the film is exposed again and finally processed to give a positive separation in which the two figures are merged. The other separations of the set are produced similarly. Figs. 9, 10 not shown are concerned with a device having pin and perforating arrangements for effecting the double form of registration indicated. |
