Erasable printing form

Details Erasable printing form Erasable printing form

1995-06-05

1996-09-17

Funk, Stephen

Printing

Planographic

Processes of lithographic printing

101452, 101465, 101466, 101478, B41N 114, B41N 303

Patent

active

055558097

ABSTRACT:
A method for producing an erasable printing form by making the outer layer of the printing form from a material containing strong micro-dipoles, preferably a ferroelectric material, in particular a ferroelectric ceramic. In wet offset printing, the non-printing areas of the printing form are rendered hydrophilic by a hydrophilizing agent and they are maintained during the entire printing process. Plate cleaners can, for example, be used as the hydrophilizing agents. The printing form can be erased by a nonpolar solvent and can be reused again by rendering the non-printing areas hydrophilic again.

REFERENCES:
patent: 3935327 (1976-01-01), Taylor
patent: 4263387 (1981-04-01), Martinez
patent: 4833990 (1989-05-01), Hirt et al.
patent: 4872962 (1989-10-01), Scheer et al.
patent: 4959668 (1990-09-01), Hirt
patent: 5145758 (1992-09-01), Kossmehl et al.
patent: 5191834 (1993-03-01), Fuhrmann et al.
patent: 5194881 (1993-03-01), Hirt

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