Process and apparatus for the manufacture of embossed film lamin

Details Process and apparatus for the manufacture of embossed film lamin Process and apparatus for the manufacture of embossed film lamin

1977-03-09

1978-08-08

Silverman, Stanley S.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With work feeding or handling means

291211, 291212, 291217, 156209, 156380, 156582, 156583, B32B 3120

Patent

active

041054911

ABSTRACT:
A method for the production of embossed laminar thermoplastic film structures comprising supplying a first length of a thermoplastic film onto the surface of a patterned roller, portions of which pattern are capable of absorbing infrared radiation, subsequently heating the patterned surface to raise the temperature of the film in those areas which are in contact with the infrared absorbent pattern, and finally superimposing a preheated film onto the film on the surface of the patterned roller to produce a laminar structure bonded together along a plurality of intersecting heat seal lines.

REFERENCES:
patent: 1924873 (1933-08-01), Moore
patent: 3060515 (1962-10-01), Corbett
patent: 3466212 (1969-09-01), Clayton et al.
patent: 3973063 (1976-08-01), Clayton

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