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Patent Searching and Data


Title:
MANUFACTURE OF KEY TOP
Document Type and Number:
Japanese Patent JPH05338114
Kind Code:
A
Abstract:

PURPOSE: To provide a method for manufacturing a key top which allows a pattern layer with a burred surface to be formed coherently on a key top base.

CONSTITUTION: A polyester film is stuck to an aluminum foil with a frosted surface on one side to obtain a base sheet 1 having a burred 7 front. Next, a pattern layer 2 is formed on the frosted side of the aluminum foil of the base sheet 1 using screen printing technique, to obtain a transfer sheet 3. After that, the transfer sheet 3 is put on a key top base material 4 of ABS resin with a burred 7 surface. Then a heated pad 5 is thermally pressed starting with the base sheet 1 side of the transfer sheet 3. Finally, the base sheet 1 is peeled off and removed after the front of the key top base material 4 is cooled to become hardened.


Inventors:
NAKAMURA KAZUO
SHIMAMOTO KOICHIRO
Application Number:
JP17731692A
Publication Date:
December 21, 1993
Filing Date:
June 10, 1992
Export Citation:
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Assignee:
NISSHA PRINTING
International Classes:
B41F16/00; B41F17/34; G06F3/02; H01H11/00; (IPC1-7): B41F16/00; B41F17/34; G06F3/02