Roll-to-roll electrochemical polish apparatus

Abstract

A roll-to-roll electrochemical polish apparatus has a first rotator, a transporting device, a pre-treatment device, an electrochemical polish device, a post-treatment device, and a second rotator. The first rotator serves to rotatably spread out a metal foil roll to a metal foil. The transporting device receives and delivers the metal foil. The pre-treatment device receives the metal foil delivered by the transporting device for cleaning and drying the surface of the metal foil. The electrochemical polish device receives the metal foil outputted from the pre-treatment device for polishing the surface of the metal foil. The post-treatment device receives the metal foil outputted from the electrochemical polish device for cleaning and drying the surface of the metal foil. The second rotator serves to wind the metal foil outputted from the post-treatment device into a finished metal foil roll.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority of Taiwanese Utility Model Application, No. 102208079, filed on May 2, 2013, the disclosure of which is herein incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention is related to a polish apparatus, and more particular to an roll-to-roll electrochemical polish apparatus carrying out a continuous electrochemical polish process on a metal foil roll by unrolling the metal foil roll, processing a metal foil of the metal foil roll, and winding the metal foil again into a metal foil roll.[0004]2. Description of the Related Art[0005]Flexible substrates are conventionally used in display devices and solar devices and usually need to be processed by a sequence of pre-treatments to ensure a desired quality of surfaces of the intermediate products for subsequent production processes and a preferred yield of the finished products.[0006]Electrochemical surfac...

AI Technical Summary

Benefits of technology

The present invention is a roll-to-roll electrochemical polish apparatus. This means that the apparatus can directly polish a material that has been rolled without needing to cut it first. This speeds up the manufacturing process because the cutting procedure is not necessary.

Problems solved by technology

However, when a metal foil with a thickness less than 0.5 mm is processed by the mechanical surface treatment, a residual stress induced from the mechanical surface treatment becomes a barrier to the quality of products made by the metal foil.

However, zirconia is hard to acquire, and the amount thereof increases with the increasing degree of surface smoothness of the metal foil, thus running counter to the production cost reduction of the metal foil.

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