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Engineered fibres are proving to be particularly effective for specialty paper applications, a section of the paper market that has grown rapidly over the past few years. They have been able to create papers with some unique properties including a high strength-to-weight ratio, high-quality finishes and fibres that can even be used in nonwoven filtration applications. However, the costs to date have prohibited use in mainstream papers, but this could change as research into cheaper engineered fibres continues. This new technology study gets you up-to-speed on the latest technologies and research in engineered fibres. Find out about:
- The key drivers that are pushing this technology forward
- The effect of pulping on fibre charge
- The latest in fibre modifications including biopolymer adsorption and cationic charge enrichment
Essential reading for
- Papermakers
- Suppliers of papermaking equipment
- Paper chemical manufacturers
- Inks and pigments manufacturers
- Pulp suppliers
- Forestry organisations
- Analysts and consultants
Executive summary
Introduction
Fibre engineering: an overview
- Importance
- Cost
- Grades
- Key drivers and trends
Pulp and fibre charge
- Kraft pulp
- Pulp fibre charge
- Effect of kraft pulping on pulp fibre charge
- Fibre charge characterisation and enhancement during oxygen delignification
- Effect of bleaching chemicals and sequence on fibre charge
- Bleaching chemicals
- Bleaching sequences
Fibre modification
- Enzymatic fibre modification
- Cellulase
- Hemicellulase
- Laccase
- Strength properties of laccase modified fibres
- Fibre modification through plasma treatment
- Surface properties
- Chemical/physical properties
- Water absorption
- Fibre carboxyl and cationic enrichment
- Carboxyl enrichment with additives
- Cationic enrichment
- Alternative surface fibre grafting
- Enzymatic grafting
- Polyelectrolyte multilayers grafting
- Corona discharge initiated grafting
Applications and conclusion
Selected tables and figures
- Some key fibre properties that can be modified by fibre engineering
- Effects of charges on paper machine operations and paper properties
- Typical modification technologies for fibre acidic group enhancement
- The effect of pulping conditions on fibre charge of conventional batch kraft pulps
- Pulp physical and chemical properties after oxygen delignification with the addition of catalyst
- Fibre charge of bleached kraft pulps
- Fibre charge affected by different bleaching sequences
- Total fibre carboxyl group content of fully bleached SW kraft pulps
- How bound acidic groups in pulp fibre can induce metal ion concentration gradient across the cell outer wall which acts to swell the fibre
- Physical properties of ECF bleached softwood kraft pulp before and after xylan absorption
- Physical properties of cationised softwood stone groundwood fibres tensile of high-kappa pulps
- Dispersive surface energies of bleach kraft pulp and thermomechanical pulp fibres determined via inverse gas chromatography
- Surface roughness of bleached kraft and thermomechanical pulp fibres treated at various treatment power levels
- Surface carboxylic acid group content on bleached kraft and thermomechanical pulp fibres at various dielectricbarrier discharge treatment levels
- Wet tensile index of dielectric-barrier discharge treated bleached kraft and unbleached thermo-mechanical pulp fibres
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