IMAGE TRANSFER TAPE AND OFFSET PRINTING SYSTEM WITH VARIABLE IMAGE SIZE Russian patent published in 2004 - IPC

FIELD: printing industry, in particular, construction of continuous tape for transfer of ink-applied image from variable-size printing form onto base. SUBSTANCE: image transfer tape has at least one basic layer 46, at least one layer 44 of compressible material applied onto basic layer, and surface layer 40 applied onto compressible material layer. Tape of such structure is used in offset printing system capable of printing variable size images. Printing system has inking unit 16, at least one plate cylinder P and at least one blanket cylinder B. Printing form 20 may be mounted on replaceable housing 21 of back cylinder. Printing system is further provided with stretching apparatus 22,24,26 for stretching of image transfer tape so as to align image transfer tape with blanket cylinder portion, to which image is to be transferred. Image transfer tape cleaning apparatus 30 is adapted for removal of residual ink from tape surface. Such construction allows continuous image transfer tape 12 to be used in offset printing machine system with variable size of image 10 and, accordingly, various printed products of different sizes to be manufactured. EFFECT: increased efficiency, wider range and improved quality of printed products manufactured by means of offset printing system. 8 cl, 2 dwg