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US 5,296,184 AGranted
Method of making an ultra soft cloth-like embossed plastic film having post-embossed stretched areas
AssigneeClopay Plastic Products Company, Inc.
InventorsPai-Chuan Wu, Thomas R. Ryle, Robert M. Mortellite, John D. Toppen
Life of this patent
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Abstract
An embossed plastic film is made ultra soft and cloth-like by providing a plurality of post-embossed stretched areas along lines that are spaced uniformly across its width and length. The stretched areas are thinner than the unstretched areas. Films also have unique textures and offer cloth-like or non-woven appearances.
Claims10
A method of making an ultra soft cloth-like embossed plastic film comprising:
- introducing a plastic film having a pattern embossed therein into a nip of rollers for incrementally machine stretching said film, said embossed film in a normal unstretched state having thick and thin areas,
- stretching said film in a diagonal machine direction, a cross machine direction or a machine direction along lines at a plurality of regular intervals across the film width and length thereby stretching said thin areas of said embossed plastic film preferentially to said thick areas due to lower resistance to the stretching force to provide said embossed film with stretched areas on both film sides separated by unstretched areas of said film to produce a ratio of the width of the stretched areas to the width of the unstretched areas thereby resulting in an ultra soft, clothlike quiet film.
Dependencies are inferred from the claim text.