Plateless printing system
OwnerMurray Figov, Narda Ben-Horininventors
Life of this patent
Estimating the term…
Abstract
A printing system which uses a single-layer printing member coated on to a cylinder is provided. For waterless offset application, the single-layer printing member may comprise an oleophobic imaging layer containing an oleophobic resin, coated on an oleophilic cylinder. The single-layer printing member is composed of a resin having either oleophobic or oleophillic properties, to which an infrared absorbing component or components may be added.
Claims65
A printing member comprising:
- an image bearing cylinder;
- a single imaging layer coated on said image bearing cylinder, said image bearing cylinder configured such that after selective ablation, polymerization or decomposition of said imaging layer, selective areas of said imaging layer are removed thereby exposing said cylinder;
- and
- one of said cylinder and said coated imaging layer is oleophilic and the other is oleophobic.
A printing member comprising:
- an oleophobic single coating imaging layer including a polymerizable silicone an infrared absorbing material, a resin and a cross-linking agent;
- and
- an oleophilic cylinder surface underlying said imaging layer, said imaging layer configured such that after selective ablation, polymerization or decomposition of said imaging layer, selective areas of said imaging layer are removed thereby exposing said cylinder surface.
A printing member comprising:
- a cylinder,
- an image bearing substrate attached to said cylinder;
- and
- single imaging layer coated on said substrate on-press,
- wherein said imaging layer configured such that after selective ablation, polymerization or decomposition of said imaging layer, selective areas of said imaging layer are removed thereby exposing said substrate and one of said substrate and said coated imaging layer is oleophilic and the other is oleophobic.
A printing system comprising:
- a printing member comprising a single imaging layer coated on an image bearing cylinder or a replaceable substrate attached to said cylinder;
- an imaging system for placing an image on said image bearing cylinder or substrate;
- and
- an inking assembly for applying ink to said printing member, wherein, said imaging layer configured such that after selective ablation, polymerization or decomposition of said imaging layer, selective areas of said imaging layer are removed thereby exposing said image bearing cylinder or said substrate and one of said image bearing cylinder or said substrate, and said coated imaging layer is oleophilic and the other is oleophobic.
A system according to claim 35, wherein said computer-to-press printing system includes a rotary digital offset press (DOP) printing system.
A method of preparing a printing member having a single imaging layer comprising:
- providing a cylinder;
- preparing a mixture;
- coating said prepared mixture on to said cylinder;
- and
- solidifying said prepared mixture,
- wherein said mixture forming said imaging layer, said imaging layer configured such that after selective ablation, polymerization or decomposition of said imaging layer, selective areas of said imaging layer are removed thereby exposing said cylinder;
- one of said cylinder and said coated imaging layer is oleophilic and the other is oleophobic.
A method of imaging a printing member, the method comprising:
- providing a printing member comprising an image bearing cylinder having a single imaging layer coated thereon;
- and
- placing an image on said printing member,
- whereby, on selective ablation, polymerization or decomposition of said imaging layer, selective areas of said imaging layer are removed thereby exposing said cylinder;
- and
- wherein one of said cylinder and said coated imaging layer is oleophilic and the other is oleophobic.
Dependencies are inferred from the claim text.