scholarly journals Efficiency of Chitosan and their Combination with Bentonite as Retention Aids in Papermaking

BioResources ◽  
2016 ◽  
Vol 11 (4) ◽  
Author(s):  
Ruben Miranda ◽  
Raluca Nicu ◽  
Elena Bobu ◽  
Angeles Blanco
Keyword(s):  
Retention Aids

A pilot web former designed to study retention-formation relationships

2010 ◽  
Vol 25 (2) ◽  
pp. 185-194
Author(s):  
Anna Svedberg ◽  
Tom Lindström
Keyword(s):  
Pilot Scale ◽  
Operating Conditions ◽  
Montmorillonite Clay ◽  
Speed Ratio ◽  
Good Reproducibility ◽  
Total Solids ◽  
Retention Aids ◽  
Solids Content ◽  
Relationship Of ◽  
The Relationship

Abstract A pilot-scale fourdrinier former has been developed for the purpose of investigating the relationship between retention and paper formation (features, retention aids, dosage points, etc.). The main objective of this publication was to present the R-F (Retention and formation)-machine and demonstrate some of its fields of applications. For a fine paper stock (90% hardwood and 10% softwood) with addition of 25% filler (based on total solids content), the relationship between retention and formation was investigated for a microparticulate retention aid (cationic polyacrylamide together with anionic montmorillonite clay). The retention-formation relationship of the retention aid system was investigated after choosing standardized machine operating conditions (e.g. the jet-to-wire speed ratio). As expected, the formation was impaired when the retention was increased. Since good reproducibility was attained, the R-F (Retention and formation)-machine was found to be a useful tool for studying the relationship between retention and paper formation.

Mechanism of polyacrylamide-bentonite – microparticulate retention aids

2000 ◽  
Vol 15 (5) ◽  
pp. 515-519 ◽  
Author(s):  
Tom Asselman ◽  
Bob Alince ◽  
Gil Garnier ◽  
Theo G.M. van de Ven
Keyword(s):  
Retention Aids
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