Plastic film having a matte finish
AssigneeClopay Corporation
InventorsRobert E. Byrne, Leopoldo V. Cancio, Arthur J. Raffel, Pai-Chuan Wu
Life of this patent
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Abstract
A plastic film having a matte finish embossed on its surface is provided. The matte plastic film has excellent winding characteristics without edge curl, extremely low gloss even on both sides and good tape adhesion properties, among other advantages, which make it especially suitable for use in articles such as disposable diapers.
Claims8
An embossed thermoplastic polyolefin film having an embossed matte pattern which is undetectable to the unaided eye and imparts a dull surface to the film, said film having a thickness within the range of about 0.5 to about 1.5 mils and an embossed depth of about 0.5 to about 2.5 mils wherein the embossed pattern comprises a series of embossed lines parallel to free lengthwise edges of the film and a series of embossed transverse lines intersecting said parallel lines to provide an overall general network of said lines surrounding raised bosses on one side of the film, wherein said bosses and said lines overlie on the opposite side of said film corresponding depressions and ridges, said embossed lines numbering within the range of about 150 to 300 lines per inch, said film having excellent winding characteristics and edge curl resistance.
An embossed thermoplastic polyolefin film having an embossed matte pattern which is undetectable to the unaided eye and imparts a dull surface to the film, said polyolefin film selected from the group consisting of polyethylene, polypropylene, polybutadiene and copolymers thereof, said film having a thickness within the range of about 0.5 to about 1.5 mils and an embossed depth of about 0.5 to about 2.5 mils wherein the embossed pattern comprises a series of embossed lines parallel to free lengthwise edges of the film and a series of embossed transverse lines perpendicularly intersecting said parallel lines to provide an overall rectangular network of said lines surrounding raised bosses on one side of the film, wherein said bosses and said lines overlie on the opposite side of said film corresponding depressions and ridges, said embossed lines numbering within the range of about 150 to 300 lines per inch, said film having excellent winding characteristics and edge curl resistance.
Dependencies are inferred from the claim text.