Method and apparatus for developing lithographic offset printing plate
AssigneeMitsubishi Paper Mills Limited
InventorsYoshiyuki Tanno, Masakazu Ando, Hidemi Hanada, Masahiko Saikawa
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Abstract
A developing apparatus for a lithographic offset printing plate, including: a developer applying device including a pair of rod-shape members which are not rotated; and a developer supply device disposed above said developer applying means and a method adapted to the apparatus and including a step of supplying a developer to either of said rod-shape members that face the surface of said lithographic offset printing plate on which a silver halide emulsion layer has been formed by application.
Claims21
A developing apparatus for a lithographic offset printing plate, comprising:
- developer applying means including a pair of rod-shape members which are not rotated and which are adapted for travel of said plate adjacent said rod-shape members;
- and
- developer supply means disposed above said developer applying means.
A developing apparatus for a lithographic offset printing plate according to claim I, wherein said developer supply means supplies a developer which contains thiocyanic acid ions by a quantity ranged from 0.03 mol or more to 0.3 mol or less per one litter of said developer.
A method of developing a lithographic offset printing plate comprising steps of:
- providing developer applying means which includes a pair of non-rotatable rod-shape members disposed adjacent to a moving path of said lithographic offset printing plate in such a manner as to allow said lithographic offset printing plate to move through a gap between said members;
- and
- supplying a developer to one of said rod-shape members which faces surface of said lithographic offset printing plate on which a silver halide emulsion layer has been formed.
Dependencies are inferred from the claim text.