Embossed oriented polymer films

Details Embossed oriented polymer films Embossed oriented polymer films

B - Operations, Transporting

29

C

B29C 59/04 (2006.01) B29D 7/01 (2006.01) B29C 35/08 (2006.01)

Patent

CA 2302198

Embossed oriented thermoplastic films and a method of making same are described. The embossed oriented thermoplastic films have substantially the same mechanical properties as unembossed oriented thermoplastic films. The method includes providing an oriented thermoplastic film having first and second major surfaces, softening at least one of the first and second major surfaces to produce a softened surface, embossing the softened surface to produce an embossed oriented thermoplastic film, and cooling the embossed oriented thermoplastic film.

L'invention concerne des films thermoplastiques orientés et gaufrés et leur procédé de fabrication. Les films thermoplastiques orientés et gaufrés présentent sensiblement les mêmes propriétés mécaniques que les films thermoplastiques orientés non gaufrés. Ledit procédé consiste à se doter d'un film thermoplastique orienté présentant une première et une seconde surfaces principales, à adoucir au moins l'une des première et seconde surfaces principales de manière à produire une surface adoucie, à gaufrer la surface adoucie de manière à produire un film thermoplastique orienté gaufré, et à refroidir le film thermoplastique orienté gaufré.

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