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US 4,069,353 AGranted
Process for producing developer sheet for pressure-sensitive recording paper
AssigneeFuji Photo Film Co., Ltd.
InventorsHiroharu Matsukawa, Takao Hayashi
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Abstract
A process for producing a developer sheet for a pressure-sensitive recording paper which comprises dissolving an oil-soluble developer in an organic solvent, emulsifying the solution in water to provide an oil-in-water emulsion, and then coating on or incorporating into a support the resulting emulsion is disclosed.
Claims12
A process for producing a developer sheet for a pressure-sensitive recording paper which comprises:
- forming an oil-in-water emulsion which consists essentially of an oil-soluble color developer which reacts with a colorless organic compound to form a colored product selected from the group consisting of novolactype phenol resins and phenol acetylene resins, a water-immiscible organic solvent for said oil-soluble color developer, water and at least one member selected from the group consisting of an emulsifier and a protective colloid, by adding said member to water and thereafter adding thereto and emulsifying therein a solution of said color developer in said organic solvent;
- coating the resulting oil-in-water emulsion on or incorporating the resulting oil-in-water emulsion in a support;
- and
- drying to form said developer sheet.
1 more element
Dependencies are inferred from the claim text.