ROLL COATER AND METHOD FOR MOLDING PLASTERBOARD BY USING THE COATER

Title:

ROLL COATER AND METHOD FOR MOLDING PLASTERBOARD BY USING THE COATER

Document Type and Number:

Japanese Patent JP3713060

Kind Code:

B2

Abstract:

PURPOSE: To improve adhesiveness between a plaster core and an original paper by providing a slurry feeding means onto the upper face of the original paper for a plaster board, a rotation driving means for rotating a coating roll in the reverse direction of the transferring direction of the original paper and a slurry spreading part between the upper face of the original paper and the lower end of the roll face of the coating roll.
CONSTITUTION: The position of a coating roll 14 in the width direction of a substrate paper and the gap between the upper face of the substrate paper and the lower end of the roll face of the roll 14 are adjusted in advance. The substrate paper is carried in its long direction by a substrate paper carrying means and the slurry on the upper face of the substrate paper reaches a spreading part formed between the upper face of the substrate paper and the lower end of the roll face of the roll 14 on the upstream side in the carrying direction of the substrate paper from the roll 14 by a slurry carrying means 12. As the roll 14 is arranged in such a way that it is approximately in parallel to the substrate paper along the width direction of the substrate paper and it is separated from the upper face of the substrate paper at a specified interval, the slurry is spread in the width direction of the substrate paper by the lower end of the roll face and a thin layer of the slurry can be formed thereby over the whole surface of the substrate paer. In addition, excess slurry is made to flow into the edge part of the substrate paper through a non-spreading part.

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Inventors:

Yukio Yamaji
Kimura Yasuaki
Takao Jingu
Takeo Takahashi
Kunio Takeoka

Application Number:

JP24945694A

Publication Date:

November 02, 2005

Filing Date:

October 14, 1994

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