发明名称 |
Functional laminate warp elimination method |
摘要 |
The present invention relates to a method and a device for rapidly stress relieving laminated RFID cards sheets (1) or individually cut cards (2) so that the effect of card wrap, bending and distortion is reduced. A freezer tunnel (5) is located down-stream of a laminator machine. The freezer tunnel (5) uses nozzles (8) to supply a cryogenic liquid in vaporized form. Laminated RFID card sheets (1) are transported through the freezer tunnel (5), where they are exposed to an ambient temperature between −40° C. to −100° C. during two minutes or less. |
申请公布号 |
US9440377(B2) |
申请公布日期 |
2016.09.13 |
申请号 |
US201214373084 |
申请日期 |
2012.01.25 |
申请人 |
ASSA ABLOY AB |
发明人 |
Weber John |
分类号 |
G06K19/07;B29C35/16;G06K19/077;B32B37/00;B32B37/08;B29C65/02;B29C71/00;B32B27/30;B32B27/36;B32B27/40;G06K19/02;B29K27/06;B29K55/02;B29K67/00;B29K69/00;B29K75/00;B29L31/34 |
主分类号 |
G06K19/07 |
代理机构 |
Sheridan Ross P.C. |
代理人 |
Sheridan Ross P.C. |
主权项 |
1. A method for manufacturing a functional laminate formed by a plurality of layers which are laminated together by use of heat and pressure and by at least one partially embedded functional element, characterized in that following a lamination step, the functional laminate is flash frozen by freezing means. |
地址 |
Stockholm SE |