COATING METHOD FOR COATING ROLL MOLD USING IN PRISM SHEET

COATING METHOD FOR COATING ROLL MOLD USING IN PRISM SHEET

A coating method for a roll mold of a prism sheet is provided to prevent pinholes or bubbles from being generated during the coating process by employing a nickel electroplating scheme, instead of a copper plating scheme. A coating method for a roll mold of a prism sheet comprises the steps of heati...

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Bibliographische Detailangaben
1. Verfasser: KIM, SUN BOK
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS THEREFOR
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
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Beschreibung
Zusammenfassung:A coating method for a roll mold of a prism sheet is provided to prevent pinholes or bubbles from being generated during the coating process by employing a nickel electroplating scheme, instead of a copper plating scheme. A coating method for a roll mold of a prism sheet comprises the steps of heating a coating solution at the temperature of 55 to 60dge.C(S110), and coating the coating solution on a surface of the roll mold by submerging the roll mold in the coating solution(S120). The coating solution includes 300 to 350 g/l of nickel sulfate, 35 to 60 g/l of boric acid, 3 to 10 g/l of nickel chloride, and 0.1 to 0.3 g/l of sodium lauryl sulfate. When coating the coating solution on the surface of the roll mold, current is applied to the coating solution such that the coating solution maintains current density of 1 to 3A/dm^2 and the roll mold is rotated at a speed of 5 to 30 RPM.