Process for preparation of multicolor surprint proofs with silic

Details Process for preparation of multicolor surprint proofs with silic Process for preparation of multicolor surprint proofs with silic

1979-06-04

1981-08-25

Kimlin, Edward C.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

427204, 427214, 430 11, 430 14, 430 17, 430 18, 430291, 430293, 430331, 430950, G03C 500

Patent

active

042860466

ABSTRACT:
Process for preparation of multicolor surprint proofs from a composite photoimaged element, e.g., photopolymer element, having, in order, a sheet support, at least two colored photoimaged elements, and a layer of colloidal silica applied thereon, said colloidal silica being coated from a substantially aqueous dispersion wherein the colloidal silica has an average particle diameter of less than 500 nm and wherein at least 75% of the solids of said dispersion are silica, the silica layer being at least 20 mg/dm.sup.2 when dried. The multicolor proofs obtained contain a sharp image free from any three-dimensional effects and have a delustered, matte appearance which simulates printed press sheets.

REFERENCES:
patent: 2432484 (1947-12-01), Moulton
patent: 2536764 (1951-01-01), Moulton
patent: 3053662 (1962-09-01), Mackey
patent: 3415771 (1968-12-01), Woodruf
patent: 3649268 (1972-03-01), Chu et al.
patent: 3687703 (1972-08-01), Ohashi et al.
patent: 4126460 (1978-11-01), Okishi
patent: 4174216 (1979-11-01), Cohen et al.

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