Process for assembling two films, in particular films of a few m

Details Process for assembling two films, in particular films of a few m Process for assembling two films, in particular films of a few m

1987-03-11

1989-03-14

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156204, 156247, 1563043, 1563046, B31F 100

Patent

active

048121894

ABSTRACT:
The invention relates to a process for joining films by heat sealing, where these films are in rolls (9) and in particular a few microns thick. In a first stage, this process consists in spreading out a first film (1) on an assembly table (5) while hemming one of its longitudinal edges with a junction tape (3) and a positioning tape (4) sealed on that side of the junction tape (4) which is opposite the film. Once the desired film length has been reached, the film is transversely cut off and the positioning tape (4) then is used to handle this first film (1) and to assure its alignment with a segment of the film (2) packed on the roll (9). The second joining stage then consists in spreading out the film (2) on the table (5) while sealing a longitudinal edge of said film (2) to the outer side of the junction tape (3) following separation of the positioning tape (4) from this junction tape (3).

REFERENCES:
patent: 2858090 (1958-10-01), Winzen et al.
patent: 2960282 (1960-11-01), Winzen
patent: 3063889 (1962-11-01), Staff
patent: 3065121 (1962-11-01), Andrews
patent: 3068137 (1962-12-01), Seubert
patent: 4219378 (1980-08-01), Marschke
patent: 4379012 (1983-04-01), Heymanns

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