The Influence of Impulse Drying on Performances of Papers Containing Cationic Starch and calcium carbonate

• Type: Article in International Scientific Journal
• Date: 2002

Authors

Paula Maria Mendes (Author) FEUP; Helena Aguilar Ribeiro (Author) FEUP; João Alexandre Ranita (Author) FEUP; Mohamed Belgacem (Author) Other; Jacques Silvy (Author) Other; Carlos Costa (Author) FEUP

Journal

Title: Tappi Journal

Vol. 1 No. 11

Pages: 10-15

ISSN: 0734-1415

Publisher: TAPPI Press

Other information

Abstract (EN): Impulse-dried sheets made with bleached kraft pulps beaten at 25°SR and containing 2% cationic starch showed excellent structural consolidation. In fact, all the mechanical and structural properties except stiffness were enhanced. During impulse pressing, cationic starch handsheets from pulps beaten at 25°SR exhibited less delamination than those made from pulps beaten at 40°SR. Web sticking (to the heated platen press surface) was observed for sheets filled with precipitated calcium carbonate (15% CaCO3).This sticking, was attributed to the presence of calcium, carbonate, which makes the paper sheets have smaller void spaces, leading to the delamination of the paper web.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6