Processing and structure of paperboard with a needled middle layer

Maria Klingberg; Antal Boldizar; Karin Hofer

doi:10.35812/CelluloseChemTechnol.2019.53.31

Processing and structure of paperboard with a needled middle layer

Maria Klingberg, Antal Boldizar^*, Karin Hofer

^*Corresponding author for this work

Institute of Bioproducts and Paper Technology (6610)

Research output: Contribution to journal › Article › peer-review

Abstract

The possibility to change the fibre network structure of paperboard by using the needle punching method was studied. Needling was performed on the middle layer made from unbleached softwood kraft pulp at a dry content of 20%. The needled structure was studied by several microscopy methods, which showed that the fibres were redistributed mainly in-plane. Denser regions of the fibre network structure were observed close to the needle penetration sites. The local density was estimated to be 25% higher than that of the surrounding unaffected structure.

Original language	English
Pages (from-to)	315-323
Number of pages	9
Journal	Cellulose Chemistry and Technology
Volume	53
Issue number	3-4
DOIs	https://doi.org/10.35812/CelluloseChemTechnol.2019.53.31
Publication status	Published - 1 Jan 2019

Keywords

Fibre orientation
Needle punching
Network structure
Paperboard
Wood cellulose fibre

ASJC Scopus subject areas

Organic Chemistry
Materials Chemistry

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10.35812/CelluloseChemTechnol.2019.53.31Licence: CC BY 4.0

Cite this

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abstract = "The possibility to change the fibre network structure of paperboard by using the needle punching method was studied. Needling was performed on the middle layer made from unbleached softwood kraft pulp at a dry content of 20%. The needled structure was studied by several microscopy methods, which showed that the fibres were redistributed mainly in-plane. Denser regions of the fibre network structure were observed close to the needle penetration sites. The local density was estimated to be 25% higher than that of the surrounding unaffected structure.",

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AU - Hofer, Karin

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N2 - The possibility to change the fibre network structure of paperboard by using the needle punching method was studied. Needling was performed on the middle layer made from unbleached softwood kraft pulp at a dry content of 20%. The needled structure was studied by several microscopy methods, which showed that the fibres were redistributed mainly in-plane. Denser regions of the fibre network structure were observed close to the needle penetration sites. The local density was estimated to be 25% higher than that of the surrounding unaffected structure.

AB - The possibility to change the fibre network structure of paperboard by using the needle punching method was studied. Needling was performed on the middle layer made from unbleached softwood kraft pulp at a dry content of 20%. The needled structure was studied by several microscopy methods, which showed that the fibres were redistributed mainly in-plane. Denser regions of the fibre network structure were observed close to the needle penetration sites. The local density was estimated to be 25% higher than that of the surrounding unaffected structure.

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KW - Needle punching

KW - Network structure

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ER -

Processing and structure of paperboard with a needled middle layer

Abstract

Keywords

ASJC Scopus subject areas

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Other files and links

FLIPPR - Future Lignin and Pulp Processing

Cite this

Processing and structure of paperboard with a needled middle layer

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Projects

FLIPPR - Future Lignin and Pulp Processing

Cite this