Lithographic plate

Details Lithographic plate Lithographic plate

1994-09-13

1996-04-02

Duda, Kathleen

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

To produce printing surface

430 56, 430 60, 430 62, G03G 1326

Patent

active

055039537

ABSTRACT:
A lithographic plate includes a substrate made of a polyester film having a light transmittance of 50% or less, a bending angle in the range of 30.degree. to 90.degree., and a rupture strength after being bent of 8 kg/mm.sup.2 or more. Alternatively, a lithographic plate includes a substrate made of a polymer film containing a polyester and a thermoplastic resin incompatible with the polyester, wherein the polymer film is oriented along at least one axis and has minute cavities formed by the orientation, and the density of the film is in the range of 1.05 g/cm.sup.3 to 1.3 g/cm.sup.3.

REFERENCES:
patent: 4609606 (1986-09-01), Noonan
patent: 4719162 (1988-01-01), Nakano

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