Spray coating method of producing printing blankets
AssigneeReeves Brothers, Inc.
InventorsRonald M. Buono, Joseph Carl Kalchbrenner, A. Keith Dye, Christopher G. Hayden
Life of this patent
Estimating the term…
Abstract
A printing blanket is constructed by electrostatically spraying one or more solvated elastomers onto a sleeve structure. A printing blanket can therefore having a sleeve and at least one layer, said layer comprising first and second compositions that are distinct from one another, wherein the boundary between the compositions is a gradient extending at least 0.002 inches. Another aspect of the invention relates to a method of electrostatically spraying elastomeric material onto printing blankets.
Claims42
A printing blanket comprising a sleeve and at least one layer, said layer comprising first and second compositions that are distinct from one another, wherein the boundary between the compositions is a gradient extending at least 0.002 inches, wherein the composition within the gradient comprises a mixture of the a first composition and a second composition, and wherein the first composition is different than the second composition.
A cylindrical printing blanket comprising a sleeve, a compressible layer, and a printing face, wherein the compressible layer contains microcells to provide compressibility, and wherein the concentration of microcells in the compressible layer varies axially.
A cylindrical printing blanket having a sleeve, a compressible layer, a reinforcing layer, and a printing face, wherein the compressible layer contains microcells to provide compressibility, wherein the thickness of the compressible layer varies axially, and wherein at least one layer was applied by electrostatic spraying the composition.
A cylindrical printing blanket having a sleeve, a compressible layer, a reinforcing layer, and a printing face layer, wherein there is no thread or fiber exterior to the sleeve which extends around the sleeve in the portion of the printing blanket used for printing, wherein at least one of the compressible layer or the reinforcing layer includes an axially oriented gradient, said gradient being either in thickness, in composition, or both, and wherein at least one layer was applied by electrostatic spraying the composition.
A method for adding a layer to a multilayer printing blanket comprising the steps of
- providing a sleeve;
- applying a compressible layer disposed exterior to the sleeve;
- optionally applying a reinforcing layer disposed exterior to the compressible layer,
- applying a printing face layer about the compressible layer or the optional reinforcing layer, wherein at least one of the applying the compressible layer, the reinforcing layer, or the printing face layer is performed by electrostatic spray application of an electrically charged solvated rubber composition, wherein the voltage of the spray is at least about 500 Volts different than the voltage of the printing blanket.
A method for adding a layer to a multilayer printing blanket comprising the steps of
- providing a non-metallic substrate;
- applying a compressible layer disposed exterior to the substrate;
- optionally applying a reinforcing layer disposed exterior to the compressible layer,
- applying a printing face layer on the compressible layer or optional reinforcing layer, wherein at least one of the applying the compressible layer, the reinforcing layer, or the printing face layer is performed by electrostatic spray application of an electrically charged solvated rubber composition, wherein the voltage of the spray is at least about 500 Volts different than the voltage of the printing blanket, and wherein the non-metallic substrate has incorporated therein or thereon conductive fiber or mineral, or a layer disposed thereon that has incorporated therein or thereon conductive fiber or mineral.
A cylindrical printing blanket having a sleeve, a compressible layer, optionally a reinforcing layer, and a printing face layer, wherein the compressible layer contains microcells to provide compressibility, and wherein at least a portion of a layer was applied by electrostatic spraying the composition.
Dependencies are inferred from the claim text.