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Title:
CHEMICAL IMPROVEMENT IN PAPER MAKING
Document Type and Number:
WIPO Patent Application WO2005061796
Kind Code:
A3
Abstract:
The invention relates to an improvement in the printability of uncoated mechanical pulp paper grades, especially to an improvement in the printability of supercalendered (SC) papers, particularly in rotogravure printing. In the method according to the invention, a mixture of alkyl ketene dimer and styrene maleic acid anhydride co-polymer is applied onto the paper web in connection with supercalendering.

Inventors:
TAMMI ANNA-LIISA (FI)
Application Number:
PCT/FI2004/050195
Publication Date:
September 09, 2005
Filing Date:
December 22, 2004
Export Citation:
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Assignee:
CIBA SC HOLDING AG (CH)
TAMMI ANNA-LIISA (FI)
International Classes:
D21H11/08; D21H17/17; D21H21/16; D21H17/37; (IPC1-7): D21H21/16; D21H17/72; D21H11/08
Foreign References:
US20020069989A12002-06-13
US6585859B12003-07-01
US6248164B12001-06-19
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