Enzymatic Deinking of Non-Impact Printed White Office Paper with Amylase

A novel hydrolytic enzyme, bacterial alpa-amylase (BAN 12OL, Novo Nordisk) was used to enhance flotation deinking of copy papers. The effects of the enzyme concentration reaction time, and addition of a flotation aid (DI-600, High Point Chemicals) on the deinking performance were studied. Pulp properties and optical and strength propelties of hand sheets were analyzed.

The pulp was treated with an enzyme concentration of 0.01 to 1.0 NU/g of OD pulp for 30 to 90 min. Subsequently, flotation deinking was performed with 0 to 0.3% flotation aid (OD pulp basis). An experimental design was used to estimate the conditions for optimum toner particle removal.

Author: Helga K. Zollner, Leland R. Schroeder
Enzymatic Deinking of Non-Impact Printed White Office Paper
Enzymatic Deinking of Non-Impact Printed White Office Paper with Amylase
35.00

New Releases

TAPPI PRESS Catalog eBook 2024


Experience the Power of Publications in the 2024 TAPPI Press Catalog


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