Plateless printing system

A computer to plate system comprising:

• a. means for re-constituting a single layer plate on an existing substrate, said re-constituting means comprising:
• i. erasing means for removal of a used imaged coating from a previous job to generate an erased substrate;
• ii. mixture means for preparing a mixture;
• iii. coating means for coating said prepared mixture on said erased substrate;
• and
• iv. solidifying means for solidifying and curing said coated layer;
• whereas said coated layer is an infrared absorbing layer, and one of said coated layer and said erased substrate is oleophilic and the other is oleophobic;
• b. an imaging system for placing an image on said coated layer;
• and
• c. means for cleaning said imaged plate;
• wherein said coated layer is formed from said mixture, said mixture including 40% to 80% (percentage solids) of silicone emulsion, 0.01% to 3% (percentage solids) of silicone catalyst, 5-15% (percentage solids) of silicone crosslinking agent and 4%-25% of water soluble crosslinkable amine resin.

A printing system comprising:

• a. a printing member comprising a single imaging layer coated on an image bearing cylinder or on a replaceable substrate attached to said cylinder;
• b. an imaging system for placing an image on said image bearing cylinder or substrate;
• and
• c. an inking assembly for applying ink to 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 image bearing cylinder or said substrate;
• wherein one of said image bearing cylinder or said substrate, and said coated imaging layer is oleophilic and the other is oleophobic;
• wherein said imaging layer comprises a mixture including a water soluble crosslinkable amine resin, a catalyst for the amine resin, a silicone emulsion and its crosslinking agent and catalyst, a surface active agent, and an infra-red absorbing agent.

A printing system comprising:

• a. a printing member comprising a single imaging layer coated on an image bearing cylinder or on a replaceable substrate attached to said cylinder;
• b. an imaging system for placing an image on said image bearing cylinder or substrate;
• and
• c. an inking assembly for applying ink to 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 image bearing cylinder or said substrate;
• wherein one of said image bearing cylinder or said substrate, and said coated imaging layer is oleophilic and the other is oleophobic;
• wherein said imaging layer comprises a mixture including 40% to 80% (percentage solids) of silicone emulsion, 0.01% to 3% (percentage solids) of silicone catalyst, 5-15% (percentage solids) of silicone crosslinking agent, and 4%-25% of water soluble crosslinkable amine resin.

A printing member comprising an image bearing cylinder having a single imaging layer coated thereon, 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;

• one of said cylinder and said coated imaging layer is oleophilic and the other is oleophobic;
• said coated imaging layer comprises a mixture including a resin and its catalyst, a silicone emulsion and its crosslinking agent and catalyst, a surface active agent, and an infra-red absorbing agent;
• and
• said resin is a water soluble crosslinkable amine resin.

A printing member comprising:

• a. an oleophobic single coating imaging layer;
• and
• b. an oleophilic cylinder surface underlying said imaging layer
• whereby, on selective ablation of said imaging layer, selective areas of said imaging layer are removed thereby exposing said cylinder surface;
• said imaging layer comprises a mixture including a water soluble crosslinkable amine resin and its catalyst, a silicone emulsion and its crosslinking agent and catalyst, a surface active agent, and an infra-red absorbing agent.

A printing member comprising:

• a. a cylinder,
• b. an image bearing substrate attached to said cylinder;
• and
• c. a single imaging layer coated on said substrate on press,
• said imaging layer configured for selective ablation, polymerization or decomposition thereof, selective areas of said imaging layer are removed thereby exposing said substrate;
• one of said substrate and said coated imaging layer is oleophilic and the other is oleophobic;
• said imaging layer comprises a mixture including 40% to 80% (percentage solids) of silicone emulsion, 0.01% to 3% (percentage solids) of silicone catalyst, 5-15% (percentage solids) of silicone crosslinking agent and 4%-25% of water soluble crosslinkable amine resin.