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US 11,635,694 B2Granted
Method for making a lithographic printing plate
AssigneeAGFA Offset BV
InventorsPeter Hendrikx, Katleen Himschoot, Sam Verbrugghe
Life of this patent
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Abstract
A method for making a negative-working lithographic printing plate includes subjecting an image-wise exposed, developed, and dried plate precursor to UV LED radiation.
Claims18
A method for making a negative-working lithographic printing plate, the method comprising in sequential order:
- image-wise exposing a lithographic printing plate precursor including a hydrophilic support and a coating provided on the hydrophilic support, the coating including a crosslinkable composition and/or a photopolymerizable composition;
- developing the lithographic printing plate precursor;
- drying and/or heating the lithographic printing plate precursor to obtain a lithographic printing plate;
- and
- subjecting the lithographic printing plate to UV LED radiation,
- wherein the lithographic printing plate is subjected to the UV LED radiation for a time period between 0.1 s and 5 minutes.
3 more elements
An apparatus for processing a lithographic printing plate, the apparatus comprising:
- a development/gumming section;
- and
- a drying section;
- wherein
- the drying section includes a drying means and at least one UV LED radiation bar, and the development/gumming section includes a first gumming unit and a second gumming unit mutually connected by a cascade to allow overflow of liquid from the second gumming unit into the first gumming unit.
2 more elements
Dependencies are inferred from the claim text.