Deinking of Furnishes Containing Water-Based Inks Using a Laboratory Apparatus Designed for Process Water Recycle, 2000 Recycling Symposium Proceedings

John K. Borchardt--Flexographic newsprint is widely known to be difficult to deink in both flotation and wash processes. Both laboratory and pilot mill flotation - wash deinking tests of flexographic newsprint containing furnishes are described below. Process parameters studied include flexographic newsprint content in the furnish, process pH, and changes in the deinking surfactant and surfactant concentration. Both nonionic and anionic surfactants were studied. The design of a laboratory benchtop closed loop deinking apparatus is described and its use to study flotation - wash deinking is detailed. The effect of varying the ratio of offset-printed newspapers and flexographic printed newspapers in a 70:30 newspaper:magazine furnish using this apparatus is described. The effect of increasing process water recycle on pulp brightness, ERIC values and process water turbidity is detailed.

Author: Borchardt, J.K.
Deinking of Furnishes Containing Water-Based Inks Using a La
Deinking of Furnishes Containing Water-Based Inks Using a Laboratory Apparatus Designed for Process Water Recycle, 2000 Recycling Symposium Proceedings
35.00

New Releases

TAPPI PRESS Catalog eBook 2026


Experience the Power of Publications in 2026


Open
 

Kraft Recovery Boilers, Third Edition  


Sponsored by the Recovery Boiler Program R&D Subcommittee of the American Forest & Paper Association (AF&PA) and published by TAPPI Press.


Purchase
 

Handbook For Pulp and Paper Technologists (The SMOOK Book), Fourth Edition

The best-selling text to introduce the entire technology of pulp and paper manufacture.

Purchase
 

Guidelines for Safe Assessment and Operation of Yankee Dryers  


A project of the Yankee Dryer Safety & Reliability Committee.

Purchase
 

Check our newest additions.


TAPPI Press offers some of the most in-depth resources and references for the forest products and related industries. 

See More
   
 

Available for Purchase – Conference Proceedings


TAPPI maintains a record of key conference papers, presentations, and other conference publications, available for purchase in a variety of formats.

See More