Nanopastes for use as patterning compositions
AssigneeKodak Graphics Communications Canada Company
InventorsKevin Barry Ray, Ken-Ichi Shimazu, Anthony Paul Kitson
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Abstract
The present invention provides a patterned substrate and methods of forming patterns on a substrate, in which a thermally sensitive composition composed of an inorganic nanopaste is applied onto a surface of a substrate to form a layer. The layer may be imaged and developed to form a pattern area that adheres to the surface of the substrate. The patterned substrate may be used in the production of printing plates and masks.
Claims87
A mask or printing plate precursor comprising:
- a substrate;
- and
- a thermally sensitive composition comprising metal nanoparticles applied as a layer on at least a portion of the substrate, wherein upon imagewise exposure to thermal radiation, exposed portions of the thermally sensitive composition have a different solubility in a developer than unexposed portions of the composition.
The mask or printing plate precursor of 1 wherein the substrate comprises a transparent material.
A mask or printing plate comprising:
- a substrate;
- and
- an image area comprising metal nanoparticles adhered to a surface of the substrate.
A method for forming an image on a substrate comprising:
- providing a substrate;
- applying onto a surface of the substrate a thermally sensitive composition comprising a nanopaste, which comprises metal nanoparticles and a carrier;
- treating the thermally sensitive composition to form a layer that adheres to the surface of the substrate;
- imagewise exposing the layer to radiation to affect the solubility of exposed portions of the layer relative to unexposed portions of the layer;
- and
- developing the layer to remove the exposed or unexposed portions of the layer to form an image area.
A method of forming an image on a substrate comprising:
- providing a substrate;
- applying onto a surface of the substrate a thermally sensitive composition comprising an inorganic nanopaste, which consists essentially of metal nanoparticles and a substantially aqueous caner;
- treating the thermally sensitive composition to form a layer that adheres to the surface of the substrate;
- imagewise exposing the layer to radiation to affect the solubility of exposed portions of the layer relative to unexposed portions of the layer;
- and
- developing the layer to remove the exposed or unexposed portions of the layer to form an image area.
A method of making a printing plate precursor comprising:
- providing a substrate;
- applying onto a surface of the substrate a thermally sensitive composition comprising a nanopaste, comprising metal nanoparticles and a carrier;
- treating the thermally sensitive composition to form a layer that adheres to the surface of die substrate.
A method of making a mask precursor comprising:
- providing a substrate;
- applying onto a surface of the substrate a thermally sensitive composition comprising a nanopaste, which comprises metal nanoparticles and a carrier;
- and
- treating the thermally sensitive composition to form a layer on at least a portion of the surface.
Dependencies are inferred from the claim text.