Method and apparatus for texturing a thermoplastic

专利名称：Method and apparatus for texturing a

thermoplastic film

发明人：Paul R. Louis,Eugene R. Sorensen,Thomas R.

Ballard

申请号：US06/036254申请日：19790504公开号：US04259286A公开日：19810331

摘要：A method of and apparatus for texturing a running ribbon of thermoplasticsheet material or film. The apparatus causes a ribbon of such film to be forwarded from asupply such as a roll of thermoplastic material, then about a circumferentially extendingportion of a rotating texturing cylinder, and then downstream where the textured filmmay be further processed or where it may be wound on a spool to form a roll thereof.The texturing cylinder comprises a tubular member having a coating of spheroidalparticles adhered to the surface thereof. While the film is in contact with the texturingcylinder, it is both heated and urged against the texturing cylinder, causing the film toassume the textured image of the texturing cylinder. The apparatus may further controltension in the film both upstream and downstream of the texturing cylinder atpredetermined constant levels. A method of making the texturing cylinder is alsodisclosed in which an epoxy film having spheroidal particles dispersed therein iselectrostatically coated onto the radially outwardly facing surface of the texturingcylinder.

申请人：THE PROCTER & GAMBLE COMPANY

代理人：John M. Pollaro,Fredrick H. Braun,Richard C. Witte

更多信息请下载全文后查看