Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With bending – folding – winding – or wrapping means
Patent
1988-12-05
1990-02-20
Simmons, David
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With bending, folding, winding, or wrapping means
156497, 156505, 156523, 156545, 156554, 156574, B65H 1600
Patent
active
049023730
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 an 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: 2422676 (1947-06-01), Haman et al.
patent: 2771121 (1956-11-01), MacCaffnay
patent: 3063889 (1962-11-01), Staff
patent: 3065121 (1962-11-01), Andrews
patent: 3068137 (1962-12-01), Seubert
patent: 3166458 (1965-01-01), Chinn et al.
patent: 4605578 (1986-08-01), Emrich et al.
Centre National D'Etudes Spatiales (C.N.E.S.)
Dutton, Jr. Harold H.
Simmons David
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