<p>The present invention relates to the use of concentrated aqueous fluorescent whitening agent preparations for optically whitening paper, wherein the preparation contains a specific disulfo-type fluorescent whitening agent.</p>
申请公布号
CA2773767(C)
申请公布日期
2015.03.03
申请号
CA20102773767
申请日期
2010.09.17
申请人
BLANKOPHOR GMBH & CO. KG
发明人
HUNKE, BERNHARD;TAUBER, ANDREI;KRAEMER, MICHAEL;KLUG, GUNTER;LANSING, THEO;HAFERMANN, MARCO
