Methods for enhancing images on relief image printing plates
First Claim
1. A method for producing relief images having high identity and resolution comprising the steps of:
- providing a collimator that has first and second opposing major faces, said collimator comprising at least one cell that extends from said first collimator face to said second collimator face and is defined by at least one surface that substantially absorbs actinic radiation incident upon said surface;
positioning said collimator opposite a photographic negative that is adjacent a layer of photocurable material; and
passing actinic radiation through said collimator.
4 Assignments
0 Petitions
Accused Products
Abstract
Methods are provided for producing relief images having improved fidelity and resolution. The methods comprise positioning an image-bearing negative transparency closely adjacent and substantially parallel to a layer of a photocurable material; positioning on the other side of the negative from the photocurable material and in substantially parallel relationship thereto; providing a collimator that has first and second opposing major faces and comprises at least one cell that extends from said first collimator face to said second collimator face and is defined by at least one surface that substantially absorbs actinic radiation incident upon said surface; positioning said collimator opposite a photographic negative that is adjacent a layer of photocurable material; and passing actinic radiation through said collimator for a time sufficient to form a latent relief image in the photocurable material.
33 Citations
26 Claims
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1. A method for producing relief images having high identity and resolution comprising the steps of:
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providing a collimator that has first and second opposing major faces, said collimator comprising at least one cell that extends from said first collimator face to said second collimator face and is defined by at least one surface that substantially absorbs actinic radiation incident upon said surface;
positioning said collimator opposite a photographic negative that is adjacent a layer of photocurable material; and
passing actinic radiation through said collimator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for producing relief images having high fidelity and resolution comprising the steps of:
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providing a collimator that has first and second opposing major faces, said collimator comprising at least one cell that extends from said first collimator face to said second collimator face and is defined by at least one surface comprising a first portion that reflects actinic radiation and a second portion that substantially absorbs actinic radiation incident upon said surface;
positioning said collimator opposite a photographic negative that is adjacent a layer of photocurable material; and
passing actinic radiation through said collimator. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification