Method for stamping heat-sensitive sheets

Details Method for stamping heat-sensitive sheets Method for stamping heat-sensitive sheets

1994-11-08

1996-11-19

Stemmer, Daniel

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1562751, 156289, 1563084, 1563807, 156537, 493203, 493209, 493267, B32B 3118, B32B 3120, B32B 3128

Patent

active

055758800

ABSTRACT:
A method for forming an item by partially fusing selected portions of two sheets together. A non-heat-sensitive barrier sheet is inserted between two heat-sensitive sheets. The sheets are stamped with a die to fuse portions of the heat-sensitive sheets together remote from the barrier sheet. The barrier sheet and waste heat-sensitive sheet material is removed to leave the item. The method has particular application to stamping envelopes from a clear flexible vinyl material in a single continuous stamping operation.

REFERENCES:
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patent: 3441959 (1969-04-01), Sears
patent: 3954049 (1976-05-01), Brieske
patent: 4002519 (1977-01-01), Moseley
patent: 4978055 (1990-12-01), Miller

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