B - Operations – Transporting – 41 – D
Patent
B - Operations, Transporting
41
D
18/1056, 18/111
B41D 7/00 (2006.01) B41C 3/06 (2006.01)
Patent
CA 1091882
THERMOPLASTIC DUPLICATION PLATE MAKING METHOD Abstract of the Disclosure A method of manufacturing thermoplastic duplication plates having a relief image transcribed thereto from a matrix which has a relief pattern in complemental relation to the transcribed relief image. To this end, a thermoplastic resin sheet is fed onto a rotating cylinder heated to a predetermined temperature and is then transported towards a transcription station while it clings to the outer peripheral surface of the cylinder. At the transcription station, the thermoplastic resin sheet then heated to a semi-fluidized state is registered or aligned with the matrix being moved in a linear direction substantially tangential to the outer peripheral surface of the cylinder. During passage through the transcription station, the thermoplastic resin sheet is transferred onto the matrix with the material penetrating deep into indentations in the matrix. Therefore, the thermoplastic resin sheet is cooled and subsequently separated from the matrix, thereby completing the thermoplastic duplication plate. This method has the advantage that the relief image can be transferred from the matrix to the thermoplastic sheet substantially without reformation.
255903
Aisu Nobuo
Haruta Yasuo
Morino Ikuo
Nagasoe Kazumasa
Shiga Norio
Kirby Eades Gale Baker
Nippon Paint Co. Ltd.
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