IMPROVED PROCESS FOR MANUFACTURING PAPER AND PAPERBOARD PRODUCTS
摘要
The present invention relates to a process for applying optical brightening agent (OBA) to a sheet of paper or paperboard substrate. The process comprises applying the cooked composition comprising a powdered optical brightener to at least one surface of a paper or paperboard substrate at the size press in a paper or paperboard manufacturing process to form a sized paper or paperboard substrate; and drying the sized paper or paperboard substrate to form a dried sized paper or paperboard substrate.
申请公布号
WO2008054743(A2)
申请公布日期
2008.05.08
申请号
WO2007US22912
申请日期
2007.10.30
申请人
INTERNATIONAL PAPER COMPANY;SKAGGS, BENNY, J.;WILSON, CHRIS