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Magazine articles
Open Access
Catastrophic failure of cast iron dryer roll caused by severe erosion resulting from spoiler bar failures, TAPPI JOURNAL, April 1996, Vol. 79(4)

Catastrophic failure of cast iron dryer roll caused by severe erosion resulting from spoiler bar failures, TAPPI JOURNAL, April 1996, Vol. 79(4)

Magazine articles
Open Access
Inside ctapi, TAPPI JOURNAL, May 1996, Vol. 79(5)

Inside ctapi, TAPPI JOURNAL, May 1996, Vol. 79(5)

Magazine articles
Open Access
Improving the reliability of newsprint quality data using integrated factor networks for paper machine control and analysis, TAPPI JOURNAL, December 1992, Vol. 75(12)

Improving the reliability of newsprint quality data using integrated factor networks for paper machine control and analysis, TAPPI JOURNAL, December 1992, Vol. 75(12)

Magazine articles
Open Access
Hot-melt adhesive development and the proliferation of raw materials, TAPPI JOURNAL, September 1991, Vol. 74(9)

Hot-melt adhesive development and the proliferation of raw materials, TAPPI JOURNAL, September 1991, Vol. 74(9)

Magazine articles
Open Access
Setting a limit, TAPPI JOURNAL, July 2002, Vol. 1(5) (52KB)

Setting a limit, TAPPI JOURNAL, July 2002, Vol. 1(5) (52KB)

Magazine articles
Open Access
People development in research and technology organizations, TAPPI JOURNAL, October 2000, Vol. 83(10)

People development in research and technology organizations, TAPPI JOURNAL, October 2000, Vol. 83(10)

Magazine articles
Open Access
What's new with tappi test methods?, TAPPI JOURNAL, September 2000, Vol. 83(9)

What's new with tappi test methods?, TAPPI JOURNAL, September 2000, Vol. 83(9)

Journal articles
Magazine articles
Open Access
Temperature profile measurement applications of moving webs and roll structures with intelligent roll embedded sensor technology, TAPPI Journal November 2021

ABSTRACT: An intelligent roll for sheet and roll cover temperature profiles is a mechatronic system consisting of a roll in a web handling machine that is also used as a transducer for sensing cross-machine direction (CD) profiles. The embedded temperature sensor strips are mounted under or inside the roll cover, covering the full width of the roll’s cross-dimensional length. The sensor system offers new opportunities for online temperature measurement through exceptional sensitivity and resolution, without adding external measurement devices. The measurement is contacting, making it free from various disturbances affecting non-contacting temperature measurements, and it can show the roll cover’s internal temperatures. This helps create applications that have been impossible with traditional technology, with opportunities for process control and condition monitoring. An application used for process analysis services without adding a roll cover is made with “iRoll Portable Temperature” by mounting the sensor on the shell in a helical arrangement with special taping. The iRoll Temperature sensors are used for various purposes, depending on the application. The two main targets are the online temperature profile measurement of the moving web and the monitoring of the roll covers’ internal temperatures. The online sheet temperature profile has its main utilization in optimizing moisture profiles and drying processes. This enables the removal of speed and runnability bottlenecks by detecting inadequate drying capacity across the sheet CD width, the monitoring condition of the drying equipment, the optimization of drying energy consumption, the prevention of unnecessary over-drying, the optimization of the float drying of coating colors, and the detection of reasons for moisture profile errors. This paper describes this novel technology and its use cases in the paper, board, and tissue industry, but the application can be extended to pulp drying and industries outside pulp and paper, such as the converting and manufacture of plastic films.

Journal articles
Magazine articles
Open Access
Determining operating variables that impact internal fiber bonding using Wedge statistical analysis methods, TAPPI Journal November 2021

ABSTRACT: In this study, Wedge statistical analysis tools were used to collect, collate, clean up, plot, and analyze several years of operational data from a commercial paper machine. The z-direction tensile (ZDT) and Scott Bond tests were chosen as representative of fiber bond strength. After analyzing thousands of operational parameters, the ones with the most significant impact upon ZDT involved starch application method, starch penetration, and the amount of starch applied. Scott bond was found to be significantly impacted by formation and refining. Final calendering of the paper web has also shown an impact on internal fiber bonding.

Magazine articles
Open Access
Practical sheeting and packaging methods for soho market, TAPPI JOURNAL, April 1999, Vol. 82(4)

Practical sheeting and packaging methods for soho market, TAPPI JOURNAL, April 1999, Vol. 82(4)