Sheet material

专利名称：Sheet material

发明人：Gatward, Douglas Kitchener申请号：EP82300883.4申请日：19820222公开号：EP0060047B1公开日：19851002

摘要：A laminated wrapping sheet material comprising a layer of paper bonded to alayer of thermoplastic film, is formed such that a layer of paper of 15-35 gsm gauge isdiscontinuously bonded to a layer of thermoplastic film of 8-35 microns such thatpockets of air are defined between the layers. The sheet material is useful in theconstruction of a captive flap bag formed of a paper-thermoplastic film laminate andcomprising two superimposed walls with thermoplastic film on the inside, closed at thebottom and on each of the two side edges, and open at the top edge, at least one wallhaving a reflex internal flap along the top edge sealed at each of the side edges, todefine an internal inverted pocket, the two walls not being sealed to each other in theregion of the pocket or pockets.

申请人：Gatward, Douglas Kitchener

地址：1212, Great Cambridge Road Enfield Middlesex GB

国籍：GB

代理机构：Ablewhite, Alan James

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