发明名称 |
Tubular container having polymeric liner ply |
摘要 |
A method of manufacturing multi-ply tubular containers for food products is provided including the steps of advancing a continuous body ply formed of paperboard towards a shaping mandrel and advancing a continuous polymeric liner ply adjacent to one surface of the paperboard body ply. The polymeric liner ply includes a moisture barrier layer and an adhesive layer defining one surface of the liner ply, wherein the adhesive layer includes a polymeric adhesive which is activated at a predetermined activation temperature. The body ply is heated to a temperature above the activation temperature of the adhesive, and the body ply and the liner ply are then passed in face-to-face contact through a nip to adhere the liner ply to the body ply. The body ply and liner ply are then wrapped around a shaping mandrel to create the tubular container. Accordingly, an advantageous tubular container can be manufactured having an unsupported and polymeric liner ply which is adhered to a body ply without the application of any separate adhesives.
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申请公布号 |
US6076728(A) |
申请公布日期 |
2000.06.20 |
申请号 |
US19980079992 |
申请日期 |
1998.05.15 |
申请人 |
SONOCO DEVELOPMENT, INC. |
发明人 |
CAHILL, GLENDA J.;GAINEY, W. GERALD |
分类号 |
B65D3/28;B31C3/00;B31C3/02;B31C3/04;B65D3/22;(IPC1-7):B65D3/04 |
主分类号 |
B65D3/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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