Accession Number:

ADA071302

Title:

Papermaking Factors that Influence the Strength of Linerboard Weight Handsheets.

Descriptive Note:

Forest service research paper,

Corporate Author:

FOREST PRODUCTS LAB MADISON WIS

Report Date:

1979-01-01

Pagination or Media Count:

34.0

Abstract:

This study explores the effects of typical papermaking factors on a number of strength properties of linerboard weight handsheets. Several papermaking factors-wood species, pulp yield, type of refiner, consistency of pulp during refining, amount of refining, wet-press pressure, and surface were evaluated for their effect on the strength properties of 42-pound-per-thousand-square-foot handsheets. Wet-press pressure, wood species, degree of refining, and yield were found to be the most important. The degree and direction of change depend on the particular property. For example, increasing wet-press pressure significantly increased the compressive strength of the handsheets whereas the type of wood species had little effect. On the other hand, wood species had a significant effect on the tensile strain to failure while wet-press pressure did not. Considering all the properties in terms of end-use requirements, the handsheets made from low-yield southern pine pulp, refined at 3 percent consistency in a disk mill to 450 milliliters Canadian Standard freeness and formed using high wet-press pressure, gave the best overall results. Author

Subject Categories:

  • Wood, Paper and Related Forestry Products
  • Containers and Packaging

Distribution Statement:

APPROVED FOR PUBLIC RELEASE