Title:
IMPROVED PROCESS FOR MANUFACTURING PULP, PAPER AND PAPERBOARD PRODUCTS
Document Type and Number:
WIPO Patent Application WO2007143182
Kind Code:
A9
Abstract:
A process for bleaching mechanical wood pulp is provided comprising subjecting the wood pulp to at least one bleaching stage with one or more bleaching agents in the presence of one or more optical brightening agent, wherein the bleaching agents are selected from the group consisting of oxidative bleaching agents other than chlorine based bleaching agents such as chlorine dioxide, elemental chlorine or a combination thereof, reductive bleaching agents or any combination of two or more thereof.
Inventors:
NGUYEN XUAN TRUONG (US)
Application Number:
PCT/US2007/013103
Publication Date:
April 17, 2008
Filing Date:
June 04, 2007
Export Citation:
Assignee:
INT PAPER CO (US)
NGUYEN XUAN TRUONG (US)
NGUYEN XUAN TRUONG (US)
International Classes:
D21B1/04; D21C9/10
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