Some insight on paper structure and properties with different drying conditions

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

This paper focuses on structural changes of paper caused by different drying conditions. Contact drying with and without hot air impingement was investigated at different temperatures. The main focus was on relating mechanical properties to the fine structure of the paper and the constituent fibres, measured by different methods including microtomography, high resolution formation measurement and other standard methods. When paper is dried under different drying conditions, with shrinkage prevented, significant differences are seen in surface roughness and elastic properties. Measurements of porosity, fibre wall thickness and pore volumes do not show such large changes when different drying boundary conditions are used. This indicates that changes happen more between fibres rather than within fibres - and also that bonding in the fibre network is altered. One of the practical results of this study is that the elastic properties and surface smoothness of paper can be improved by cooler paper temperature during drying process.
Original languageEnglish
Pages (from-to)146-151
Number of pages6
JournalAppita Journal
Volume62
Issue number2
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

Fingerprint

Drying
Fibers
Contacts (fluid mechanics)
Porosity
Surface roughness
Boundary conditions
Mechanical properties
Temperature
Air

Keywords

  • paper drying
  • paper properties
  • papermaking
  • paper industry

Cite this

@article{5fef42d573da4b7d883a03cba37feb30,
title = "Some insight on paper structure and properties with different drying conditions",
abstract = "This paper focuses on structural changes of paper caused by different drying conditions. Contact drying with and without hot air impingement was investigated at different temperatures. The main focus was on relating mechanical properties to the fine structure of the paper and the constituent fibres, measured by different methods including microtomography, high resolution formation measurement and other standard methods. When paper is dried under different drying conditions, with shrinkage prevented, significant differences are seen in surface roughness and elastic properties. Measurements of porosity, fibre wall thickness and pore volumes do not show such large changes when different drying boundary conditions are used. This indicates that changes happen more between fibres rather than within fibres - and also that bonding in the fibre network is altered. One of the practical results of this study is that the elastic properties and surface smoothness of paper can be improved by cooler paper temperature during drying process.",
keywords = "paper drying, paper properties, papermaking, paper industry",
author = "Ker{\"a}nen, {Janne T.} and M. Myllys and Harri Kiiskinen",
year = "2009",
language = "English",
volume = "62",
pages = "146--151",
journal = "Appita Journal",
issn = "1038-6807",
number = "2",

}

Some insight on paper structure and properties with different drying conditions. / Keränen, Janne T.; Myllys, M.; Kiiskinen, Harri.

In: Appita Journal, Vol. 62, No. 2, 2009, p. 146-151.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Some insight on paper structure and properties with different drying conditions

AU - Keränen, Janne T.

AU - Myllys, M.

AU - Kiiskinen, Harri

PY - 2009

Y1 - 2009

N2 - This paper focuses on structural changes of paper caused by different drying conditions. Contact drying with and without hot air impingement was investigated at different temperatures. The main focus was on relating mechanical properties to the fine structure of the paper and the constituent fibres, measured by different methods including microtomography, high resolution formation measurement and other standard methods. When paper is dried under different drying conditions, with shrinkage prevented, significant differences are seen in surface roughness and elastic properties. Measurements of porosity, fibre wall thickness and pore volumes do not show such large changes when different drying boundary conditions are used. This indicates that changes happen more between fibres rather than within fibres - and also that bonding in the fibre network is altered. One of the practical results of this study is that the elastic properties and surface smoothness of paper can be improved by cooler paper temperature during drying process.

AB - This paper focuses on structural changes of paper caused by different drying conditions. Contact drying with and without hot air impingement was investigated at different temperatures. The main focus was on relating mechanical properties to the fine structure of the paper and the constituent fibres, measured by different methods including microtomography, high resolution formation measurement and other standard methods. When paper is dried under different drying conditions, with shrinkage prevented, significant differences are seen in surface roughness and elastic properties. Measurements of porosity, fibre wall thickness and pore volumes do not show such large changes when different drying boundary conditions are used. This indicates that changes happen more between fibres rather than within fibres - and also that bonding in the fibre network is altered. One of the practical results of this study is that the elastic properties and surface smoothness of paper can be improved by cooler paper temperature during drying process.

KW - paper drying

KW - paper properties

KW - papermaking

KW - paper industry

M3 - Article

VL - 62

SP - 146

EP - 151

JO - Appita Journal

JF - Appita Journal

SN - 1038-6807

IS - 2

ER -