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Journal articles
Production roundtable, Corrugating International, April 1999
Production roundtable, Corrugating International, April 1999, Vol. 1(1)
News
How to Prepare for OSHA
GRAEME RODDEN Mention OSHA (Occupational Safety and Health Administration) to mill management in the US and often the reaction is one of dread—the fear of fines or other legal proceedings. It needn’t be this way.
Journal articles
Magazine articles
Three-dimensional visualization and characterization of paper machine felts and their relationship to their properties and dewatering performance, TAPPI Journal July 2021
ABSTRACT: Polymeric felts are commonly used in the papermaking process on the paper machine wet end, in the press section, and in the dryer section. They provide an important function during paper manufacturing, including as a carrier or support; as a filter media assisting with water removal on the paper machine; in retention of fibers, fines, and fillers; and in some applications, such as tissue and towel, to impart key structural features to the web. These felts can have highly interwoven complex internal structures comprised of machine direction and cross-machine direction yarns of varying sizes and chemical compositions. Here, we present a non-intrusive three-dimensional (3D) image visualization method using advanced X-ray computed tomography (XRCT). This method was used to characterize the complex 3D felt structure and determine the water removal characteristics of some commonly used paper machine felts. The structural features analyzed include porosity; specific pore-yarn interfacial surface area; 3D pore size distribution; 3D fiber or yarn-size distribution; and their variations through the thickness direction. The top, middle, and bottom layers of the felt have very different structures to assist with water removal and impart paper properties. The size distribution of the yarns, as well as the pores in the different layers of the felt, are also inherently different. These structural features were non-intrusively quantified. In addition, variation in the structural characteristics through the thickness of the felts and its potential role in papermaking is explored. In addition to the 3D structural characteristics, permeability characteristics and water removal characteristics, including rewetting of select felt samples, have also been experimentally determined. It is interesting to observe the relationship between key structural features and permeability and water removal characteristics. These relationships can provide additional insights into press felt design, as well as ways to improve product properties and the dewatering efficiency and productivity of the paper machine.
TAPPI Academy: eLearning Catalog
TAPPI Academy eLearning offers TAPPI members and the industry opportunities to grow, achieve, and succeed by providing unsurpassed technical online knowledge from proven industry experts through a variety of channels such as eLearning, face-to-face courses, certification programs, forums and conferences.
Events
TissueCon 2019
More than 200 people were onsite at Fox Cities Exhibition Center in Appleton, WI to attend Tissue 2018. Tissue professionals across the entire supply chain networked, learned, and shared ideas over the four day conference.
News
Bringing the safety message home: PPSA annual meeting meets the challenge of change
Moving to Mobile for its 73rd annual event, the Pulp & Paper Safety Association (PPSA) conference program touched all the bases, practical and theoretical, and then some. Nancy Garry, HRP Associates, also led a full day session dealing with the fundamentals of OSHA compliance in the paper industry.