The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2017
Filed:
Apr. 05, 2011
William A. Von Drasek, Oak Forest, IL (US);
Brett Brotherson, Lisle, IL (US);
Sergey M. Shevchenko, Aurora, IL (US);
Michael J. Murcia, DeKalb, IL (US);
William A. Von Drasek, Oak Forest, IL (US);
Brett Brotherson, Lisle, IL (US);
Sergey M. Shevchenko, Aurora, IL (US);
Michael J. Murcia, DeKalb, IL (US);
Nalco Company, Naperville, IL (US);
Abstract
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.