Foil-decorating injection molding machine and foil-decorating in

Details Foil-decorating injection molding machine and foil-decorating in Foil-decorating injection molding machine and foil-decorating in

1998-09-25

2000-04-04

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264513, 264267, 264269, 425127, 4251291, 425388, B29C 4514

Patent

active

060457449

ABSTRACT:
A foil-decorating injection molding method including using a foil-decorating injection molding machine with an injection mold having a male mold and a female mold. The female mold has a cavity surface for forming a cavity, and a parting surface having an outer peripheral section on which to hold a decorative sheet, and an inner peripheral section extending between the inner edge of the outer peripheral section of the parting surface and the edge of the cavity surface in a concavely curved shape to allow the expansion of a peripheral portion of the decorative sheet around a decorating portion of the same during preforming. This reduces local strains in the decorative portion of the sheet and ensures a uniform thickness distribution of the sheet to prevent breaking and creasing of the sheet.

REFERENCES:
patent: 4360329 (1982-11-01), Hatakeyama
patent: 4755120 (1988-07-01), Onneneberg et al.
patent: 4994224 (1991-02-01), Itoh et al.
patent: 5415536 (1995-05-01), Ohno

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