Plate material for shadow mask

Details Plate material for shadow mask Plate material for shadow mask

1991-04-25

1994-09-20

Rosasco, Steve

Radiation imagery chemistry: process, composition, or product th

Imaged product

Structurally defined

430 23, 420 94, 313402, G03C 300

Patent

active

053488270

ABSTRACT:
A plate material for a shadow mask, consisting essentially of iron or of iron and nickel and having a surface configuration which stabilizes the adhesion between the plate material and a photoresist and improves the adhesion between the plate material and a negative pattern in the process of producing a shadow mask, thereby enabling improvements in the quality and the productivity, and which causes no annealing adhesion in the shadow mask softening annealing step in the process of producing a color picture tube. The plate material has a surface roughness Ra and a surface roughness projection condition Rsk, which are defined as follows:

REFERENCES:
patent: 4445998 (1984-05-01), Kanada et al.
patent: 4751424 (1988-06-01), Tong

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