Ultra soft cloth-like embossed plastic film having post-embossed stretched areas
AssigneeClopay Corporation
InventorsPai-Chuan Wu, Thomas R. Ryle, Robert M. Mortellite, J. David 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 or 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.
Claims14
An ultra soft embossed plastic film suitable for use as a cloth or fabric having the appearance and feel of non-woven or woven fabric and having liquid barrier properties comprising:
- a thermoplastic film selected from the group consisting of polyethylene, polypropylene and copolymers thereof having a thickness on the order of about 0.5 to about 10 mils and a pattern embossed therein in its normal unstretched state having thick and thin areas and a plurality of post-embossed stretched areas along lines spaced substantially uniformly across the surface areas on both sides of the embossed film, said stretched areas being separated by unstretched areas and having a thickness less than the unstretched areas, said thin areas of said embossed plastic film in its normal unstretched state being stretched preferentially to the thick areas due to the lower resistance to the stretching force, said film being ultra soft and quiet when used as a cloth or fabric upon comparison with the embossed plastic film in its normal unstretched state.
An ultra soft embossed plastic film suitable for use as a cloth or fabric having the appearance and feel of non-woven or woven fabric and having liquid barrier properties comprising:
- an embossed thermoplastic film selected from the group consisting of polyethylene, polypropylene and copolymers thereof having a thickness on the order of about 0.5 to about 10 mils and a pattern in its normal unstretched state having thick and thin areas of raised bosses and depressions on one side of the film overlying on the opposite side of the film corresponding depressions and bosses, said pattern selected from the group consisting of woven fabric, non-woven fabric and matte finish,
- said film having a plurality of post-embossed stretched areas along lines that are spaced substantially uniformly and completely across the surface areas on both sides of the film, said stretched areas being separated by unstretched areas of said embossed pattern and said stretched areas having a thickness less than the unstretched areas, said thin areas of said embossed plastic film in its normal unstretched state being stretched preferentially to the thick areas due to the lower resistance to the stretching force, said film being ultra soft and quiet when used as a cloth or fabric upon comparison with said embossed film in its normal unstretched state.
Dependencies are inferred from the claim text.