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Patent Searching and Data


Title:
PRODUCTION OF RESIN MOLDED ARTICLE PROVIDED WITH CHARACTER OR SYMBOL
Document Type and Number:
Japanese Patent JPS5916778
Kind Code:
A
Abstract:

PURPOSE: To prevent positional staggering and misregistration from occurring at the time of pressing, by previously providing drilled holes between pattern layers of a tranfer sheet, at least before the transfer sheet is deformed by pressing a transferring pad against the sheet.

CONSTITUTION: The transfer sheet 1 is placed on base materials 4 for key caps so that the pattern layers 3 are brought into contact with the surfaces to be transferred thereon of the base materials 4 of the key caps. Then, drilled holes 6 are provided between the pattern layers 3 of the sheet 1, prior to pressing the sheet 1 from the side of a base sheet 2 by the transferring pad 5. A heat treatment is conducted in the condition wherein the surfaces to be transferred thereon of the base materials 4 make contact with the pattern layers 3, whereby desired patterns such as characters or symbols are produced on the surfaces of the base materials 4. Then, the base sheet 2 of the transfer sheet 1 is removed, whereby the key caps provided with the characters or symbols can be obtained.


Inventors:
SUMI TAKAO
SHIMAMOTO KOUICHIROU
INAGO YOSHIHIDE
Application Number:
JP12733482A
Publication Date:
January 27, 1984
Filing Date:
July 20, 1982
Export Citation:
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Assignee:
NISSHA PRINTING
International Classes:
B41M5/382; B41M1/40; B41M3/12; B44C1/16; B44C1/165; (IPC1-7): B41M3/12