Method for providing surface texturing of aluminum sheet,...

Details Method for providing surface texturing of aluminum sheet,... Method for providing surface texturing of aluminum sheet,...

2007-04-10

2007-04-10

Ahmed, Shamim (Department: 1765)

Etching a substrate: processes

Forming or treating cylindrical or tubular article having...

Forming or treating an embossing cylinder or tubular article

C216S032000, C216S083000, C219S069170, C430S270100, C427S580000

Reexamination Certificate

active

11134706

ABSTRACT:
According to the present invention, since the concavo-convex pattern of the embossing form is formed by electrical discharge machining, the peaks on the surface of the resultant embossing form are all of the same level or height, which enables the enhancement of the service life of the embossing form. Further, since the concavo-convex pattern of the embossing form is formed by electrical discharge machining, even a complicated and minute concavo-convex pattern can be formed. Accordingly, when applying the method of the present invention to, for example, the production of a substrate for a lithographic plate, an aluminum substrate for a lithographic plate which excels in plate wear, sensitivity and resistance to stains can be produced. And when applying the same to the production of an aluminum decorative laminate, an aluminum decorative laminate which excel in glossiness and paint adhesion can be produced.

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