Overview

"This volume examines the chemicals used in the surface treatment of paper products: the means used to apply them; and the product characteristics they are intended to enhance. The emphasis of the book is on the technologies for ""on-machine"" surface treatment (that is, on the paper machine) rather than separate coating operatons. Accordingly, the book includes a comprehensive treatment of metred size press technology from one of the formost manufacturers; the chapters describing the chemicals used are biased towards on-machine application. Similarly the product areas that are particularly discussed are two of those where development into on-machine application is most intense: non-impact printing papers and food-grade board (often made from 100 percent recycled base). There is extensive discussion of how the different chemicals used in surface treatment can interact, both with one another, and in some circumstances, even with those used in the bulk treatment (especially sizing). Suggestions as to avoiding these interactions are made and examples are given. The book ends with a discussion of the impact of surface treatment on the recycling of papers treated in the various ways. Though written principally for technologists in paper mills, this book should also be a suitable reference source for chemical and equipment suppliers, and for research staff in academic and technical institutes. This book should also be of interest to paper industry and its raw material and equipment suppliers."

Full Product Details

Author:   J. Brander ,  I. Thorn
Publisher:   Chapman and Hall
Imprint:   Chapman and Hall
Edition:   1997 ed.
Dimensions:   Width: 15.50cm , Height: 1.80cm , Length: 23.50cm
Weight:   1.250kg
ISBN:  

9780751403701

ISBN 10:   0751403709
Pages:   263
Publication Date:   30 September 1997
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Hardback
Publisher's Status:   Active
Availability:   In Print  
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Table of Contents

Background.- Technology of on-machine application.- Chemicals for surface application.- Paper products and surface treatment.- 1 On-machine surface treatment of paper and board with the blade coater.- 1.1 The origins of on-machine surface treatment.- 1.2 The blade-coating system today.- 1.3 Advantages and disadvantages of on-machine surface treatment.- 1.4 Paper and board grades utilizing on-machine surface treatment.- 1.5 Designing the surface treatment line.- 1.6 Examples.- 2 On-machine surface treatment of paper and board with the film press.- 2.1 Introduction.- 2.2 Quality and runnability aspects of different surface sizing processes.- 2.3 New generation film presses.- 2.4 Coat-weight development and metering-element-related phenomena.- 2.5 Film transfer at film-press nip.- 2.6 Precalendering.- 2.7 Control of paper quality.- 2.8 Nip mechanics and roll covers.- 2.9 Quality differences between film-press and blade coated sheets.- 2.10 The SymSizer film press.- References.- 3 Synthetic latex binders for paper manufacture.- 3.1 Introduction.- 3.2 From molecule to particle: latex synthesis.- 3.3 From particles to dispersion: latex stability.- 3.4 The viscosity of latices and coating colors: the novel contribution of the particle state.- 3.5 From particle to film: latex coalescence.- 3.6 From latex to coated paper: the role of polymers in a paper coating.- 3.7 Conclusions.- References.- 4 Starches.- 4.1 Introduction.- 4.2 Principles of starch technology.- 4.3 Starch modification.- 4.4 Surface application methods.- 4.5 Starch properties required for size-press application.- 4.6 Starch properties required for metered size-press application.- 4.7 Starch properties required for blade application and as a coating colour binder.- 4.8 Starch properties required when applied by liquid application system.- 4.9 Size-press starch application to waste-based packaging paper.- 5 Rheology modifiers and pigment dispersants.- 5.1 Introduction.- 5.2 General principles of viscosity and rheology.- 5.3 Flow types encountered in paper surface treatment.- 5.4 Variation of shear stress during surface application.- 5.5 Water retention.- 5.6 Types of rheology modifier.- 5.7 Pigment dispersants.- 5.8 Interactions.- References.- 6 Pigments for on-line surface treatment.- 6.1 Introduction.- 6.2 The pigments.- 6.3 Application.- 6.4 General paper improvement.- 6.5 Conclusions.- References.- 7 Surface sizing.- 7.1 Definition and overview.- 7.2 Chemicals applied at the surface.- 7.3 Function of the products.- 7.4 End-use properties.- 7.5 Interactions and possible problems.- References.- 8 Surface brightening of paper.- 8.1 Introduction.- 8.2 Spectra of different illuminants.- 8.3 The quantification of the effectiveness of fluorescent brightening agents.- 8.4 The chemical nature of fluorescent brightening agents.- 8.5 Application of fluorescent brightening agents to paper.- 8.6 Impairment of fluorescent brightening agents: greening and quenching.- 8.7 Lightfastness.- 8.8 Recycling.- 8.9 Monitoring and control of surface brightened paper.- 8.10 Toxicology and ecotoxicity of fluorescent brightening agents.- 8.11 Summary of the effects and influences on surface addition of fluorescent brightening agents to paper.- Acknowledgements.- References.- 9 On-machine surface coloration.- 9.1 Introduction.- 9.2 Size-press dyeing.- 9.3 Dyes used in on-machine coating.- 9.4 Calender stack dyeing.- 9.5 Spraying.- 9.6 Broke treatment.- 9.7 Survey of surface dyeing.- 9.8 Conclusions.- Acknowledgements.- References.- Further reading.- 10 The surface treatment of fine business papers.- 10.1 Introduction.- 10.2 Non-impact printing.- 10.3 The chemical natures of non-impact printing image-forming materials.- 10.4 Paper requirements for non-impact printing.- 10.5 Surface treatment for non-impact printing papers.- 10.6 Surface application methods.- 10.7 Summary.- Acknowledgement.- References.- Further reading.- 11 Barrier dispersion coating of paper and board.- 11.1 Dispersion coating in general.- 11.2 Film formation.- 11.3 Commonly measured film properties.- 11.4 Heat sealing, blocking and gluing.- 11.5 Products.- 11.6 Disposal of dispersion coated papers.- References.- 12 Recycling surface treated paper products.- 12.1 Introduction.- 12.2 Recycling surface treated paper products.- 12.3 Stock Preparation and the impact of surface treatment chemicals.- 12.4 Summary of the effects of surface treated papers on recycling.- References.

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