Paper dry strength improvement by xyloglucan addition: Wet-end application, spray coating and synergism with borate
-
Abstract
The polysaccharide xyloglucan as a wet-end additive improves paper properties. In the present study, paper strength improvement was analysed for dry handsheets made from chemical, mechanical and recycled pulps coated with xyloglucan in a spray application. Results are compared with sheets made from the same pulps treated with xyloglucan in the wet-end. Kraft pulp handsheets of bleached hardwood and softwood showed significant improvements of tensile, tear and Z-strength by xyloglucan spray treatment versus wet-end application, whereas handsheets of de-inked and thermomechanical pulp were improved only slightly. In both wet-end and spray applications, the effect of xyloglucan addition was intimately related to the presence of non-cellulosic components on the fibre surface. Further strength improvements were obtained for chemical pulps by addition of borax to the spray solution, which were likely to be due to the formation of borate-mediated xyloglucan cross-links. Spray coating of xyloglucan, with or without borax, thus represents a potential new application of this polysaccharide to increase paper dry strength.
©2008 by Walter de Gruyter Berlin New York
Articles in the same Issue
- Meetings
- Evaluation of Eucalyptus grandis Hill ex Maiden biopulping with Ceriporiopsis subvermispora under non-aseptic conditions
- Paper dry strength improvement by xyloglucan addition: Wet-end application, spray coating and synergism with borate
- A new and facile method for isolation of lignin from wood based on complete wood dissolution
- Isolation and characterization of lignins from Eucalyptus grandis Hill ex Maiden and Eucalyptus globulus Labill. by enzymatic mild acidolysis (EMAL)
- Fractionation and characterization of xylan rich extracts from birch
- Polyoxometalate (POM) oxidation of lignin model compounds
- Pyrolytic cleavage mechanisms of lignin-ether linkages: A study on p-substituted dimers and trimers
- Polysaccharide degradation in waterlogged oak wood from the ancient warship Vasa
- Degradation of polyethylene glycol and hemicellulose in the Vasa
- Selection criteria of Eucalyptus globulus Labill. for production of chemithermomechanical pulps (CTMP)
- The effect of (induced) dislocations on the tensile properties of individual Norway spruce fibres
- Mode I and Mode II fracture toughness of densified Sitka spruce fabricated in an airtight atmosphere with high-temperature steam
- Characteristic properties of embedding strength for the nailing of the gonfolo rose (Qualea rosea Aubl.)
- Adhesive penetration of wood cell walls investigated by scanning thermal microscopy (SThM)
- Laboratory screening of tropical hardwoods for natural resistance to the marine borer Limnoria quadripunctata: The role of leachable and non-leachable factors
- Decay resistance of wood treated with amino-silicone compounds
- Hydrothermal treatment of mixed preservative-treated wood waste
- Variation of tracheid length within annual rings of Scots pine and Norway spruce
Articles in the same Issue
- Meetings
- Evaluation of Eucalyptus grandis Hill ex Maiden biopulping with Ceriporiopsis subvermispora under non-aseptic conditions
- Paper dry strength improvement by xyloglucan addition: Wet-end application, spray coating and synergism with borate
- A new and facile method for isolation of lignin from wood based on complete wood dissolution
- Isolation and characterization of lignins from Eucalyptus grandis Hill ex Maiden and Eucalyptus globulus Labill. by enzymatic mild acidolysis (EMAL)
- Fractionation and characterization of xylan rich extracts from birch
- Polyoxometalate (POM) oxidation of lignin model compounds
- Pyrolytic cleavage mechanisms of lignin-ether linkages: A study on p-substituted dimers and trimers
- Polysaccharide degradation in waterlogged oak wood from the ancient warship Vasa
- Degradation of polyethylene glycol and hemicellulose in the Vasa
- Selection criteria of Eucalyptus globulus Labill. for production of chemithermomechanical pulps (CTMP)
- The effect of (induced) dislocations on the tensile properties of individual Norway spruce fibres
- Mode I and Mode II fracture toughness of densified Sitka spruce fabricated in an airtight atmosphere with high-temperature steam
- Characteristic properties of embedding strength for the nailing of the gonfolo rose (Qualea rosea Aubl.)
- Adhesive penetration of wood cell walls investigated by scanning thermal microscopy (SThM)
- Laboratory screening of tropical hardwoods for natural resistance to the marine borer Limnoria quadripunctata: The role of leachable and non-leachable factors
- Decay resistance of wood treated with amino-silicone compounds
- Hydrothermal treatment of mixed preservative-treated wood waste
- Variation of tracheid length within annual rings of Scots pine and Norway spruce
