Process of improving adherence of hydrophilic layer to hydrophobic film support
Abstract
Abstract IN FILM RECORDING MATERIALS, THE ADHERENCE OF A HYDROPHILIC EXTERNAL LAYER SUCH AS A SILVER EMULSION OR A PHOTOCONDUCTIVE LAYER TO A HYDROPHOBIC FILM SUPPORT IS IMPROVED BY FIRST APPLYING TO THE HYDROPHOBIC FILM SUPPORT A LAYER OF A COPOLYMER FORMED OF FROM 45-99.5% BY WEIGHT OF AT LEAST ONE CHLORINE-CONTAINING MONOMER OF VINYLIDENE CHLORIDE AND VINYL CHLORIDE, FROM 0.5-10% BY WEIGHT OF AN ETHYLENICALLY UNSATURATED HYDROPHILIC MONOMER, AND FROM 0-54.5% BY WEIGHT OF AT LEAST ONE OTHER COPOLYMERIZABLE ETHYLENICALLY UNSATURATED MONOOMER AND THEN EXPOSING THE SURFACE OF THE COPOLYMER LAYER TO A HIGH VOLTAGE ELECTRIC CORONA DISCHARGE. A PREFERRED HYDROPHOBIC FILM SUPPORT IS A FILM OF A HIGHLY POLYMERIC LINEAR POLYESTER SUCH AS POLYETHYLENE TEREPHTHALATE.
Inventors
- 👤 Geest W De
- 👤 Paesschen A Van
- 👤 E Brinckman
Bibliographic Details
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