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With the exception of a slight hiccup during the height of the recent environmental movement (during the early 1990s), when for a year or two consumers were prepared to pay a price premium for lower quality recycled paper than for the virgin product, the inexorable improvement in the quality demanded of paper products continues. This demand for quality covers not only the aesthetics ofthe product but also its performance. Moreover, it is becoming increasingly the case that papers designed for a particular use must, as it were incidentally, also perform well in alternative applications. An example is that of office and printing papers, which are expected to perform as well in copier machines as in all the various forms of impact and non-impact printers. But even greater demands are made in other product areas, where board designed for dry foods can also be expected to protect moist and fatty materials and be made of 100% recycled fibre. The need to isolate foodstuffs from some of the contaminants that can affect recycled board is a· serious challenge. Thus, papermakers are constantly striving to meet a broadening spectrum of demands on their products; often while accepting declining quality of raw materials. The product design philosophy that has arisen in response to this is increasingly to isolate the bulk of a paper from its uses: to engineer the needed performance characteristics into the paper surfaces while more or less ignoring what happens inside.
With the exception of a slight hiccup during the height of the recent environmental movement (during the early 1990s), when for a year or two consumers were prepared to pay a price premium for lower quality recycled paper than for the virgin product, the inexorable improvement in the quality demanded of paper products continues. This demand for quality covers not only the aesthetics ofthe product but also its performance. Moreover, it is becoming increasingly the case that papers designed for a particular use must, as it were incidentally, also perform well in alternative applications. An example is that of office and printing papers, which are expected to perform as well in copier machines as in all the various forms of impact and non-impact printers. But even greater demands are made in other product areas, where board designed for dry foods can also be expected to protect moist and fatty materials and be made of 100% recycled fibre. The need to isolate foodstuffs from some of the contaminants that can affect recycled board is a· serious challenge. Thus, papermakers are constantly striving to meet a broadening spectrum of demands on their products; often while accepting declining quality of raw materials. The product design philosophy that has arisen in response to this is increasingly to isolate the bulk of a paper from its uses: to engineer the needed performance characteristics into the paper surfaces while more or less ignoring what happens inside.
Inhaltsverzeichnis
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.
Details
| Erscheinungsjahr: | 1997 |
|---|---|
| Fachbereich: | Allgemeines |
| Genre: | Importe, Technik |
| Rubrik: | Naturwissenschaften & Technik |
| Medium: | Buch |
| ISBN-13: | 9780751403701 |
| ISBN-10: | 0751403709 |
| Sprache: | Englisch |
| Ausstattung / Beilage: | HC runder Rücken kaschiert |
| Einband: | Gebunden |
| Redaktion: |
Thorn, I.
Brander, J. |
| Hersteller: |
Springer Netherland
Springer Netherlands |
| Verantwortliche Person für die EU: | Books on Demand GmbH, In de Tarpen 42, D-22848 Norderstedt, info@bod.de |
| Maße: | 241 x 160 x 22 mm |
| Von/Mit: | I. Thorn (u. a.) |
| Erscheinungsdatum: | 30.09.1997 |
| Gewicht: | 0,6 kg |
Inhaltsverzeichnis
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.
Details
| Erscheinungsjahr: | 1997 |
|---|---|
| Fachbereich: | Allgemeines |
| Genre: | Importe, Technik |
| Rubrik: | Naturwissenschaften & Technik |
| Medium: | Buch |
| ISBN-13: | 9780751403701 |
| ISBN-10: | 0751403709 |
| Sprache: | Englisch |
| Ausstattung / Beilage: | HC runder Rücken kaschiert |
| Einband: | Gebunden |
| Redaktion: |
Thorn, I.
Brander, J. |
| Hersteller: |
Springer Netherland
Springer Netherlands |
| Verantwortliche Person für die EU: | Books on Demand GmbH, In de Tarpen 42, D-22848 Norderstedt, info@bod.de |
| Maße: | 241 x 160 x 22 mm |
| Von/Mit: | I. Thorn (u. a.) |
| Erscheinungsdatum: | 30.09.1997 |
| Gewicht: | 0,6 kg |
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