Process for producing decorative sheet
AssigneeLonseal Corporation
InventorsToru Shoji, Mitsuru Sugiyama, Makoto Takezawa, Yuichi Akiba, Akira Kaneko, Mituo Sato
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Abstract
In the production of a decorative sheet, a synthetic resin paste is first applied onto the upper surface of a substrate sheet to form an undercoat layer. Then, one or more pastes, each being of the same material and having approximately the same viscosity as the paste of the undercoat layer, are laterally sprayed so as to drop onto the undercoat layer. The result is a smoothing phenomenon, with the pattern layer cooperating with the undercoat layer to form a smooth patterned surface. Finally, the pattern layer is heated and jelled.
Claims20
A process for producing a decorative sheet, comprising the steps of:
- (a) applying a paste comprising a synthetic resin onto the upper surface of a substrate sheet to form an undercoat layer;
- (b) laterally spraying, by means of a spraying system, one or more pastes, each paste comprising colored synthetic resin of the same material and having approximately the same viscosity as the paste comprising the undercoat layer, onto the undercoat layer so as to cause each of the one or more pastes to be dropped onto the undercoat layer, whereby a smoothing phenomenon occurs wherein the one or more pastes forming a pattern layer cooperate with the undercoat layer to form a smooth patterned surface;
- and
- (c) heating and gelling the pattern layer.
Dependencies are inferred from the claim text.