Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making printing plates
Patent
1994-03-15
1995-10-31
Duda, Kathleen
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making printing plates
430 22, 1014631, 101483, 101DIG36, G03F 700
Patent
active
054628369
ABSTRACT:
A method of manufacturing a flexographic printing plate having a base (polyester foil) and a soft caoutchouc mass which is enriched with photo-initiators (photo-polymer) and is arranged on the base, wherein a film with the image to be printed is fastened with precise fit on a free surface portion of the caoutchouc mass. The method includes removing the caoutchouc mass at the edges of the base intended for fastening. The base is provided with register holes in the areas of the exposed edges of the base and the base is placed with the register holes on register pins of an assembly rail. Spacer pieces are placed on the exposed edges of the base, wherein the thickness of the spacer pieces corresponds to the thickness of the removed caoutchouc mass. A film having corresponding register holes is placed on the register pins. Finally, exposure to light, washing and assembly in the printing machine are carried out.
REFERENCES:
patent: 4809609 (1989-03-01), Sugiura
Patent Abstracts of Japan vol. 012, No. 354 (P-761) of Sep. 22, 1988 and JP-A-63 106 756 (Sono Kogyo KK) of May 11, 1988.
Duda Kathleen
Kueffner Friedrich
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