Dry lamination

Details Dry lamination Dry lamination

B - Operations, Transporting

32

B

154/71

B32B 37/00 (2006.01) B29C 43/30 (2006.01)

Patent

CA 1109378

ABSTRACT OF THE DISCLOSURE A two-step method of laminating at least two plastic films of the same or a different nature includes bringing the two films together at a temperature in the range from ambient up to the melting temperature of the film having the lowest melting point in order to form a low peel strength composite. The composite is subsequently subjected to treatment at an elevated temperature in the same range in order to form a high peel strength laminate. Only non-surface treated films are used, and the low peel strength composite is subjected to the treatment at elevated temperature in a condition substantially free of tension and pressure.

283900

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