发明名称 |
Verfahren zum dynamischen, mechanischen Verbinden und Vorrichtung dazu |
摘要 |
A method of and apparatus for dynamically mechanically bonding together a plurality of laminae, at least one of which comprises thermoplastic material: for example, polyethylene. In one aspect of the invention the laminae are forwarded in face to face relation through a pressure biased nip between a patterned nip defining member and an opposing nip defining member (eg, a relief patterned cylinder and an anvil cylinder) which members are independently driven to maintain a predetermined surface velocity differentially between them. In another aspect of the invention which is particularly useful at intermediate and higher line velocities -- preferably for line velocities of about 300 feet or more per minute and, more preferably, for line speeds of about 450 feet or more per minute -- the nip defining members may be operated with equal surface velocities. In each of these aspects of the invention, the members may be biased towards each other to provide a predetermined pattern-element-psi loading; and, additionally, they may be independently heated to provide each with an elevated surface temperature which is, preferably, in a predetermined range below the melt temperature of the thermoplastic lamina disposed closest to or in contact with each respective nip defining member as the laminae are forwarded through the nip. |
申请公布号 |
DE3854789(T2) |
申请公布日期 |
1996.05.02 |
申请号 |
DE19883854789T |
申请日期 |
1988.06.17 |
申请人 |
THE PROCTER & GAMBLE CO., CINCINNATI, OHIO, US |
发明人 |
BALL, WALTER KENNETH, CINCINNATI, OHIO 45233, US;ZORB, JAMES EDWARD, CINCINNATI, OHIO 45225, US;GOULAIT, DAVID JOSEPH KENNETH, CINCINNATI, OHIO 45241, US |
分类号 |
B29C65/56;A44B18/00;A61F13/62;B29C65/00;B29C65/02;B29C65/18;B29L9/00 |
主分类号 |
B29C65/56 |
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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