Process for making relief-type recordings

Details Process for making relief-type recordings Process for making relief-type recordings

1979-09-07

1982-06-29

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

430258, 430313, 430323, 430324, 430325, 430330, 430502, 430935, G03C 500

Patent

active

043373089

ABSTRACT:
This invention relates to an improvement in a process for making relief-type recordings, in which a layer transfer material comprising a solid photopolymerizable layer on a flexible temporary layer support, is applied to a permanent layer support in such a manner that the photopolymerizable layer is firmly bonded to the latter, the photopolymerizable layer adhering to the permanent layer support is then imagewise exposed, with the temporary layer support being removed before or after exposure, the unexposed layer areas are washed away with a developer, and the surface areas of the permanent support bared by washing are modified by etching or depositing a metal, if required, the improvement which comprises using a photopolymerizable layer which is composed of at least two photopolymerizable partial layers of different compositions.

REFERENCES:
patent: 2993789 (1961-07-01), Crawford
patent: 3157505 (1964-11-01), Nutley
patent: 3469982 (1969-09-01), Celeste
patent: 3615435 (1971-10-01), Chu et al.
patent: 3770438 (1973-11-01), Celeste
patent: 3785817 (1974-01-01), Kuchta
patent: 3982943 (1976-09-01), Feng et al.
patent: 4050936 (1977-09-01), Takeda et al.

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