Applications of Wet-End Paper Chemistry
Very rarely is paper produced without the aid of chemicals. This second edition of Applications of Wet-End Paper Chemistry describes the types, uses and application of most of the chemicals used at the wet end of a paper, board and (to some extent) tissue
- PDF / 6,772,731 Bytes
- 232 Pages / 439.37 x 666.142 pts Page_size
- 29 Downloads / 219 Views
Ian Thorn • Che On Au Editors
Applications of Wet-End Paper Chemistry Second Edition
Editors Ian Thorn Eka Chemicals Ltd. Somerset UK [email protected]
Che On Au Eka Chemicals Ltd. Somerset UK [email protected]
ISBN 978-1-4020-6037-3 e-ISBN 978-1-4020-6038-0 DOI 10.1007/978-1-4020-6038-0 Springer Dordrecht Heidelberg London New York Library of Congress Control Number: 2009929354 © Springer Science+Business Media B.V. 2009 No part of this work may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, microfilming, recording or otherwise, without written permission from the Publisher, with the exception of any material supplied specifically for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com)
In Memory of Hammy Singh
Foreword
Now more than ever, in an era of economic uncertainty, constrained resources and environmental sensitivity, paper producers are facing increasing challenges. Over the last decade, we have witnessed a growing interest in the field of wet-end chemistry. One of the driving forces in papermaking is the customers’ demand for superior paper quality. Economically, quality improvement has to be achieved without cost increase. This clearly indicates that issues like filler increase, reduction of water and energy consumption, and performance improvement have become vital to all of us. New types of fillers, retention aids, biocides, sizing agents and many more additives offer a sound basis for process improvement. Chemical technologists have to critically select the most appropriate additives for their production processes and carefully watch the impact on quality, costs and environment. A better understanding of wet-end chemistry has already led to significant progress. Benchmarks of products and processes demonstrate an increase both in quality and in environmental performance, which is not solely caused by better technical equipment but also by sophisticated utilisation of additives. Sometimes the path from lab experiments to successful implementation of new chemistry concepts on paper machines is a difficult one, and interactions between the many constituents of the wet-end system have to be taken into consideration. A striking example is the accumulation of salts and colloids caused by the everincreasing closure of water loops. Not all trials result in immediate success but they contribute to new knowledge and even better ideas. Close collaboration between suppliers, scientists and papermakers results in better solutions and reduces the risk of failure. This book is written by experts in their field and it provides comprehensive insight into latest research and applications. The combined expertise of the authors of this book offers new opportunities to foster wet-end efficiency and to increase product quality. Heidemarie Reiter
vii
Contents
1
Data Loading...
