发明名称 |
METHOD OF MAKING A STRATIFIED PAPER |
摘要 |
The present invention provides a method making stratified paper by redistributing the pulp suspension inside the headbox nozzle using acoustic radiation waves. Acoustic radiation forces fractionate fibers based on fiber radius. The acoustic radiation waves separate the fibers by pushing the coarse and longer fibers to the inner area while fines and smaller fibers remain in the outer area. This has a similar effect of multi-layer stratification headbox, and provides paper with a smoother surface.
|
申请公布号 |
WO2004044311(A8) |
申请公布日期 |
2005.01.20 |
申请号 |
WO2003US35229 |
申请日期 |
2003.11.03 |
申请人 |
INTERNATIONAL PAPER COMPANY |
发明人 |
PARK, CHANG, SING;XU, HANJIANG |
分类号 |
D21F1/00;D21F1/02;D21F11/00;D21F11/04;(IPC1-7):D21F11/04 |
主分类号 |
D21F1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|