Coating processes – Nonuniform coating – Applying superposed diverse coatings or coating a coated base
Patent
1992-12-22
1994-03-08
Owens, Terry J.
Coating processes
Nonuniform coating
Applying superposed diverse coatings or coating a coated base
427273, B05D 310
Patent
active
052925560
ABSTRACT:
A method for preparing high resolution negative-working wash-off relief images comprising the sequential steps of: (a) providing a non-photosensitive, aqueous processable layer, preferably on a substrate, said layer comprising a dispersion of solvent-coalesceable particles in a polymer matrix; (b) imagewise applying an ink to the non-photosensitive layer to coalesce the particles and form a water-insoluble polymer blend between the particles and the polymer matrix in the ink applied areas; and (c) washing the layer with an aqueous developer solution to remove the non-ink applied areas of the layer.
Ma Sheau-Hwa
Matthews Andrew E.
E. I. Du Pont de Nemours and Company
Owens Terry J.
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