Improving wet web runnability and paper quality by an uncharged polysaccharide

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Abstract

The effects of xyloglucan addition on wet web strength, drying tension and end product quality of bleached birch kraft pulps were examined with laboratory trials. Specific xyloglucan dosages were applied onto wet fibre networks by spraying. Laboratory sheets were prepared of never-dried and once-dried birch pulps. Wet sheet strength and drying characteristics were analysed using diverse analytical instruments. Structural, strength and surface properties of dry sheet samples were tested according to standard methods. Wet web strength and tension holding potential of test samples increased with the addition of xyloglucan, which is an indication of better wet web runnability. Xyloglucan also increased the drying tension. Besides enhanced runnability, xyloglucan treatment was also found to improve end product quality by improving smoothness and dry strength properties, and decreasing air permeability. Results indicate that xyloglucan treatment has greater strengthening potential with once-dried chemical pulp, whereas the effect with never-dried pulp was smaller. Never-dried fibre has high natural bonding ability when once-dried fibres re-swelling and thus bonding ability has deteriorated in drying process. Therefore, xyloglucan seems to have potential especially in recovering the strength properties of pulp with hornified cell walls, such as in recycled pulp. In general, these results can be exploited in paper and board machines for tailoring fibre networks for different product grades or special functional products.
Original languageEnglish
Pages (from-to)187-191
Number of pages5
JournalJournal of Biobased Materials and Bioenergy
Volume5
Issue number2
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

Fingerprint

Polysaccharides
Pulp
Drying
Fibers
Chemical pulp
Air permeability
Bleached pulp
Kraft pulp
Spraying
Surface properties
Swelling
Cells
xyloglucan

Keywords

  • kraft birch pulp
  • xyloglucan
  • uncharged
  • borax
  • spraying
  • wet strength
  • runnability
  • drying tension
  • dry strength
  • hornification
  • never-dried
  • once-dried

Cite this

@article{04039e6f92ec4db89129a6f5da936a91,
title = "Improving wet web runnability and paper quality by an uncharged polysaccharide",
abstract = "The effects of xyloglucan addition on wet web strength, drying tension and end product quality of bleached birch kraft pulps were examined with laboratory trials. Specific xyloglucan dosages were applied onto wet fibre networks by spraying. Laboratory sheets were prepared of never-dried and once-dried birch pulps. Wet sheet strength and drying characteristics were analysed using diverse analytical instruments. Structural, strength and surface properties of dry sheet samples were tested according to standard methods. Wet web strength and tension holding potential of test samples increased with the addition of xyloglucan, which is an indication of better wet web runnability. Xyloglucan also increased the drying tension. Besides enhanced runnability, xyloglucan treatment was also found to improve end product quality by improving smoothness and dry strength properties, and decreasing air permeability. Results indicate that xyloglucan treatment has greater strengthening potential with once-dried chemical pulp, whereas the effect with never-dried pulp was smaller. Never-dried fibre has high natural bonding ability when once-dried fibres re-swelling and thus bonding ability has deteriorated in drying process. Therefore, xyloglucan seems to have potential especially in recovering the strength properties of pulp with hornified cell walls, such as in recycled pulp. In general, these results can be exploited in paper and board machines for tailoring fibre networks for different product grades or special functional products.",
keywords = "kraft birch pulp, xyloglucan, uncharged, borax, spraying, wet strength, runnability, drying tension, dry strength, hornification, never-dried, once-dried",
author = "Antti Oksanen and Timo Rantanen and Elias Retulainen and Kristian Salminen and Harry Brumer",
note = "Project code: 25506",
year = "2011",
doi = "10.1166/jbmb.2011.1144",
language = "English",
volume = "5",
pages = "187--191",
journal = "Journal of Biobased Materials and Bioenergy",
issn = "1556-6560",
publisher = "American Scientific Publishers",
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}

Improving wet web runnability and paper quality by an uncharged polysaccharide. / Oksanen, Antti; Rantanen, Timo; Retulainen, Elias; Salminen, Kristian; Brumer, Harry.

In: Journal of Biobased Materials and Bioenergy, Vol. 5, No. 2, 2011, p. 187-191.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Improving wet web runnability and paper quality by an uncharged polysaccharide

AU - Oksanen, Antti

AU - Rantanen, Timo

AU - Retulainen, Elias

AU - Salminen, Kristian

AU - Brumer, Harry

N1 - Project code: 25506

PY - 2011

Y1 - 2011

N2 - The effects of xyloglucan addition on wet web strength, drying tension and end product quality of bleached birch kraft pulps were examined with laboratory trials. Specific xyloglucan dosages were applied onto wet fibre networks by spraying. Laboratory sheets were prepared of never-dried and once-dried birch pulps. Wet sheet strength and drying characteristics were analysed using diverse analytical instruments. Structural, strength and surface properties of dry sheet samples were tested according to standard methods. Wet web strength and tension holding potential of test samples increased with the addition of xyloglucan, which is an indication of better wet web runnability. Xyloglucan also increased the drying tension. Besides enhanced runnability, xyloglucan treatment was also found to improve end product quality by improving smoothness and dry strength properties, and decreasing air permeability. Results indicate that xyloglucan treatment has greater strengthening potential with once-dried chemical pulp, whereas the effect with never-dried pulp was smaller. Never-dried fibre has high natural bonding ability when once-dried fibres re-swelling and thus bonding ability has deteriorated in drying process. Therefore, xyloglucan seems to have potential especially in recovering the strength properties of pulp with hornified cell walls, such as in recycled pulp. In general, these results can be exploited in paper and board machines for tailoring fibre networks for different product grades or special functional products.

AB - The effects of xyloglucan addition on wet web strength, drying tension and end product quality of bleached birch kraft pulps were examined with laboratory trials. Specific xyloglucan dosages were applied onto wet fibre networks by spraying. Laboratory sheets were prepared of never-dried and once-dried birch pulps. Wet sheet strength and drying characteristics were analysed using diverse analytical instruments. Structural, strength and surface properties of dry sheet samples were tested according to standard methods. Wet web strength and tension holding potential of test samples increased with the addition of xyloglucan, which is an indication of better wet web runnability. Xyloglucan also increased the drying tension. Besides enhanced runnability, xyloglucan treatment was also found to improve end product quality by improving smoothness and dry strength properties, and decreasing air permeability. Results indicate that xyloglucan treatment has greater strengthening potential with once-dried chemical pulp, whereas the effect with never-dried pulp was smaller. Never-dried fibre has high natural bonding ability when once-dried fibres re-swelling and thus bonding ability has deteriorated in drying process. Therefore, xyloglucan seems to have potential especially in recovering the strength properties of pulp with hornified cell walls, such as in recycled pulp. In general, these results can be exploited in paper and board machines for tailoring fibre networks for different product grades or special functional products.

KW - kraft birch pulp

KW - xyloglucan

KW - uncharged

KW - borax

KW - spraying

KW - wet strength

KW - runnability

KW - drying tension

KW - dry strength

KW - hornification

KW - never-dried

KW - once-dried

U2 - 10.1166/jbmb.2011.1144

DO - 10.1166/jbmb.2011.1144

M3 - Article

VL - 5

SP - 187

EP - 191

JO - Journal of Biobased Materials and Bioenergy

JF - Journal of Biobased Materials and Bioenergy

SN - 1556-6560

IS - 2

ER -