Manufacturing method and manufacturing apparatus of support for planographic printing plate

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United States of America Patent

PATENT NO 9573404
APP PUB NO 20130105327A1
SERIAL NO

13661623

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Abstract

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A manufacturing method of a support for a planographic printing plate including at least an alkaline etching step of dissolving an aluminum surface layer of an aluminum web with an alkaline solution during a surface roughening treatment on a surface of the aluminum web continuously traveling,

    the manufacturing method comprising:a circulating step of cyclically using the alkaline solution between a treatment tank for the etching and an alkaline solution reservoir during adjusting composition concentration of the alkaline solution; anda filtering step of filtering the alkaline solution cyclically used so as to remove solid matter in the alkaline solution.

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Patent Owner(s)

Patent OwnerAddress
FUJIFILM CORPORATION26-30 NISHIAZABU 2-CHOME MINATO-KU TOKYO 106-8620

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hotta, Hisashi Shizuoka, JP 45 386
Kasuya, Yuichi Shizuoka, JP 20 164

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