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Magazine articles
PIMA and tappi form alliance for paper industry education, TAPPI JOURNAL, February 1998, Vol. 81(2)
PIMA and tappi form alliance for paper industry education, TAPPI JOURNAL, February 1998, Vol. 81(2)
Magazine articles
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)
Journal articles
Magazine articles
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.
Journal articles
Magazine articles
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
Development of paper quality parameter measurement in China, TAPPI Journal May 2022
ABSTRACT: Paper quality parameters are important indicators of paper production, such as paper moisture, basis weight, ash content, strength, and so on. This study focuses on the online measurement methods and development of paper basis weight, moisture, and ash measuring. First, the measurable paper parameters and quality control system products in China are analyzed. Then, the basis weight measurement methods, accuracy, and development are given in the range of 10~1000 g/m2. Third, the distinction between infrared and microwave methods for moisture measurement is discussed. Finally, the ash measurement is introduced. Production and consumption of tissue paper in China have continually increased during the past decade. Near-infrared light technology is mature for the measurement of paper parameters in the range of 10~200 g/m2 basis weight. However, the near-infrared online measurement of tissue paper is not widely used, and few tissue paper lines are equipped with this type of quality control system in China. Therefore, technology for near-infrared measurement of basis weight has a great potential market in the field of tissue paper production. This article analyzes the future development trend of near-infrared light in tissue paper basis weight measurement and summarizes the difficulties in near-infrared light measurement of tissue paper basis weight.
Magazine articles
Technology utilization in mills, TAPPI JOURNAL, March 2000, Vol. 83(3)
Technology utilization in mills, TAPPI JOURNAL, March 2000, Vol. 83(3)
Magazine articles
Mount st. helens - 20 years of recovery, TAPPI JOURNAL, May 2000, Vol. 83(5)
Mount st. helens - 20 years of recovery, TAPPI JOURNAL, May 2000, Vol. 83(5)
Magazine articles
Imagine more in coatings, TAPPI JOURNAL, May 2000, Vol. 83(5)
Imagine more in coatings, TAPPI JOURNAL, May 2000, Vol. 83(5)
Magazine articles
Improving dryer performance, TAPPI JOURNAL, May 2000, Vol. 83(5)
Improving dryer performance, TAPPI JOURNAL, May 2000, Vol. 83(5)
Magazine articles
Vendor, supplier, or partner, TAPPI JOURNAL, June 2000, Vol. 83(6)
Vendor, supplier, or partner, TAPPI JOURNAL, June 2000, Vol. 83(6)
