Improving the extensibility, wet web and dry strength of paper by addition of agar

Alexey Vishtal, Elias Retulainen

Research output: Contribution to journalArticleScientificpeer-review

20 Citations (Scopus)

Abstract

High extensibility of paper is of great importance for many finishing and converting operations. Extensibility is a key feature for the paper and paperboard which are utilized in production of advanced 3D-shapes. However, extensibility of the conventional paper and paperboard is usually quite low, but it can be improved by modification of fibre structure, fibre bonding and paper structure. In this article, spray application of agar on wet paper sheets was used for the improvement of the extensibility of paper. It was found that also other mechanical and functional properties such as wet web strength, air permeability and grease barrier can also be improved by agar addition. Extensibility of unrestrained dried paper was increased by 4%-points. Further, paper treated with agar exhibited an excellent performance in the preparation of the 3D-shapes
Original languageEnglish
Pages (from-to)434-443
Number of pages9
JournalNordic Pulp and Paper Research Journal
Volume29
Issue number3
DOIs
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed

Fingerprint

Paperboards
extensibility
agar
Agar
Fiber bonding
Air permeability
paperboard
Lubricating greases
air permeability
spray
Fibers
functional properties
mechanical properties
finishing
permeability
paper
air
fibre

Keywords

  • 3D-forming
  • agar
  • extensibility
  • films
  • paper making
  • shrinkage
  • spraying

Cite this

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abstract = "High extensibility of paper is of great importance for many finishing and converting operations. Extensibility is a key feature for the paper and paperboard which are utilized in production of advanced 3D-shapes. However, extensibility of the conventional paper and paperboard is usually quite low, but it can be improved by modification of fibre structure, fibre bonding and paper structure. In this article, spray application of agar on wet paper sheets was used for the improvement of the extensibility of paper. It was found that also other mechanical and functional properties such as wet web strength, air permeability and grease barrier can also be improved by agar addition. Extensibility of unrestrained dried paper was increased by 4{\%}-points. Further, paper treated with agar exhibited an excellent performance in the preparation of the 3D-shapes",
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Improving the extensibility, wet web and dry strength of paper by addition of agar. / Vishtal, Alexey; Retulainen, Elias.

In: Nordic Pulp and Paper Research Journal, Vol. 29, No. 3, 2014, p. 434-443.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Improving the extensibility, wet web and dry strength of paper by addition of agar

AU - Vishtal, Alexey

AU - Retulainen, Elias

PY - 2014

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AB - High extensibility of paper is of great importance for many finishing and converting operations. Extensibility is a key feature for the paper and paperboard which are utilized in production of advanced 3D-shapes. However, extensibility of the conventional paper and paperboard is usually quite low, but it can be improved by modification of fibre structure, fibre bonding and paper structure. In this article, spray application of agar on wet paper sheets was used for the improvement of the extensibility of paper. It was found that also other mechanical and functional properties such as wet web strength, air permeability and grease barrier can also be improved by agar addition. Extensibility of unrestrained dried paper was increased by 4%-points. Further, paper treated with agar exhibited an excellent performance in the preparation of the 3D-shapes

KW - 3D-forming

KW - agar

KW - extensibility

KW - films

KW - paper making

KW - shrinkage

KW - spraying

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DO - 10.3183/NPPRJ-2014-29-03-p434-443

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JO - Nordic Pulp and Paper Research Journal

JF - Nordic Pulp and Paper Research Journal

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