Erasable printing plate and a process and apparatus for erasing

Details Erasable printing plate and a process and apparatus for erasing Erasable printing plate and a process and apparatus for erasing

1998-05-27

2000-01-25

Funk, Stephen R.

Printing

Planographic

Lithographic plate making, and processes of making or using...

101425, 101478, B41N 308

Patent

active

060167505

ABSTRACT:
A printing plate which can be repeatedly directly provided with an image and erased and is suitable for a wet offset printing method. The printing plate has a smooth and pore-free surface which is hydrophilic or can be hydrophilized after being provided with an image. The printing plate contains no strong microdipoles and consists of a ceramic, a glass or a metal, in particular of a metal alloy. An erasing and hydrophilizing apparatus preferably integrated in the printing press, repeatedly erases and prepares, i.e. rehydrophilizes, the printing plate for a further image-providing and printing process.

REFERENCES:
patent: 4015307 (1977-04-01), Kossak
patent: 4651644 (1987-03-01), Kaempfe et al.
patent: 4757763 (1988-07-01), MacPhee et al.
patent: 4833990 (1989-05-01), Hirt et al.
patent: 5213041 (1993-05-01), Kanck
patent: 5275104 (1994-01-01), Corrado et al.
patent: 5317970 (1994-06-01), Nussel et al.
patent: 5440987 (1995-08-01), Williams et al.
patent: 5454318 (1995-10-01), Hirt et al.

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