Banner for LabNotes
From Lab Notes
Contact Information
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592
Email

 

You are here: FPL Home  / Information Products & Services  / Publications

Requested Product

Title: Variation of Paper Curl due to Fiber Orientation

Source: In: Proceedings of the SEM Annual Conference June 7-10, 2010 Indianapolis, Indiana USA paper number 281. CD; ISBN: 978-1-935226-05-9. 2010

Author(s)Decker, J. T.; Khaja, A. A.; Hoang, M. T.; Considine, J. M.; Vahey, D. W.; Turner, K. T.; Rowlands, R. E.

Publication Year: 2010  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4709-5A

Abstract: Transverse deviations from the ideal flat surface in paper, or curl, can be a serious problem in the paper industry. The manufacturing of paper materials results in the material being orthotropic and laminar. Moreover, the dominant fiber orientation in a paper sheet can vary through the thickness of the sheet. Many paper structures are produced by lamination of paper plies. In these products directions of symmetry of the elastic properties, and coefficients of moisture and temperature expansion/contraction, consequently differ through the thickness of the laminated material. When subjected to humidity changes, the top and bottom portions of a paper laminate therefore expand or contract different amounts, causing the structure to curl. Paper products that curl are difficult to convert in packaging applications and print or copy in automated feeding mechanisms, leading to large costs for companies. It can become impossible to machine process and dispense paper products (such as stamps) that have curled. The present research involves determining the moisture induced curl in [0/15] and [0/45] Whatman paper laminates using a full-field 3-D laser scanner.

Keywords: Paper, mechanical properties, paper testing, papermaking, orientation, fibers, elasticity, moisture, temperature, humidity, microfibril angle, fiber orientation, fiber properties, dimensional stability, stiffness, curl

Publication Review Process: Non-Refereed (Other)

File size: 267 kb(s)

Date posted: 05/16/2011
RITS Product ID: 36620
Current FPL Scientist associated with this product
Considine, John M.
Materials Research Engineer
  

Additional items that might interest you
View the video celebrating FPL's 100 years of public service in 2010, from the producers of the Greatest Good....view

Research Highlights from FPL....view

Termite Eradication: A search for the Holy Grail.... view

Moisture Management in Residential Construction Series videos...view

Wood Floor Systems in Residential Construction Series videos....view
- FPL's Mission and Strategic Plan -

FPL's mission is to identify and conduct innovative wood and fiber utilization research that contributes to conservation and productivity of the forest resource, thereby sustaining forests, the economy, and quality of life. ... ..more »

- FPL Research Emphasis Areas -
Advanced Composites

As an integral part of the FPL mission, we improve the long-term sustainability of our Nation's forests by creating valuable composite products from biobased materials ... ..more »


Advanced Structures

The FPL has been in the forefront of wood-frame housing research since 1910 and has long been recognized as a world leader in such housing-related areas as engineered wood ... ..more »


Forest Biorefinery

We all know the compelling reasons that the United States needs to reduce its dependence on fossil fuels. Historically, the greatest increases in energy demand have been for transportation fuels ... ..more »


Nanotechnology

A leader in wood products research for over a century, the FPL is positioning itself to become the lead Federal research facility for the application of nanotechnology in forest products ... more »


Woody Biomass Utilization

Forests in the United States contain a substantial amount of small-diameter, overstocked, and underutilized material.FPL research projects are exploring the potential of the small-diameter ... ..more »