专利名称：Methods for making a bag from a film
material exhibiting textile properties
发明人：Ole-Bendt Rasmussen,Nikolai Wettergren
Wettergren Rasmussen
申请号：US15291936申请日：20161012公开号：US09815266B2公开日：20171114
专利附图：
摘要：A film material formed of thermoplastic polymer material is processed so as tohave linearly extending regions (A) linked together by linearly extending webs (B),
regions (A) and webs (B) each being oriented, the dominant direction of orientation inregions (A) forming an angle (V) to the direction on which (A) extends and webs (B)comprising arrays of linear furrows of thinner material or splits forming angles (U) higherthan (V) to the direction in which (A) extends. The method of producing the new filminvolves passing an orientated film through a pair of intermeshing grooved rollers tocold-stretch the film in a direction at an angle to the predominant original orientation, atleast one of the grooved rollers having crests with sharp edges to form the divisionbetween regions A and webs B and to stretch the material to form webs B while
stretching the material less or not at all to form regions A. Preferably at least one of thegrooved rollers has crests with a waved surface shape.
申请人：Ole-Bendt Rasmussen
地址：Walchwil CH
国籍：CH
代理人：Robert W Strozier
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