发明名称 |
SYSTEM AND METHOD FOR CONTROLLING CURL IN MULTI-LAYER WEBS |
摘要 |
A system and method for controlling curl in multi-layer webs. The method can include providing a coated web, bending the web to induce a strain or pre-curl in the web, and curing the coating to form a multi-layer web. Some coatings at least partially shrink when cured such that curing the coating induces a curl in the multi-layer web. Bending the web occurs prior to curing the coating, and the pre-curl can be configured to at least partially counteract the curl induced by curing to form a multi-layer web having a desired curvature. The system can include a curing section configured to cure a coating, and can further include a web bending section configured to bend the web to induce a strain in the web. The web bending section can be positioned upstream of the curing section such that the web is bent prior to the coating being cured.
|
申请公布号 |
US2008081123(A1) |
申请公布日期 |
2008.04.03 |
申请号 |
US20070861742 |
申请日期 |
2007.09.26 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
SWANSON RONALD P.;HENDERSON ANDREW J. |
分类号 |
B05D3/12;B05C13/00;B05D3/06 |
主分类号 |
B05D3/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|