Method of monitoring macrostickies in a recycling and paper or tissue making process involving recycled pulp

A challenge in using recycled material in the papermaking process is the presence of hydrophobic organics with adhesive properties commonly known as ''stickies, '' Hydrophobic agglomerates can result in spots or defects in the final paper product or deposit on papermaking equipme...

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Bibliographic Details
Main Authors MURCIA, MICHAEL J, SHEVCHENKO, SERGEY M, BROTHERSON, BRETT, DRASEK, WILLIAM A. VON
Format Patent
LanguageChinese
English
Published 16.01.2013
Subjects
APPARATUS THEREFOR
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PAPER-MAKING
PHYSICS
PRODUCTION OF CELLULOSE
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
REGENERATION OF PULPING LIQUORS
TESTING
TEXTILES
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Summary:A challenge in using recycled material in the papermaking process is the presence of hydrophobic organics with adhesive properties commonly known as ''stickies, '' Hydrophobic agglomerates can result in spots or defects in the final paper product or deposit on papermaking equipment resulting in poor runnability and downtime. Technologies for monitoring and controlling microstickies exist. However, a need exists for a technique to rapidly determine the size and content of macrostickies (diameter > 100 microns) in recycled pulp process streams. The present invention is a device and method to perform real-time macrostickies and/or any visible hydrophobic particle analysis in an aqueous medium. Using the present invention, furnish quality can be monitored and treatment performance can be monitored and controlled. The technique is based on fluorescence image analysis to identify and count sticky particles as well as measure their size.
Bibliography:Application Number: TW20121109003