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Journal articles
Effect of fungal pretreatment on strength and optical properties of softwood and hardwood kraft pulps, TAPPI JOURNAL, October 1991, Vol. 74(10)
Effect of fungal pretreatment on strength and optical properties of softwood and hardwood kraft pulps, TAPPI JOURNAL, October 1991, Vol. 74(10)
Magazine articles
Effect of mos2 on corrosion inhibition of nlgi reference grease, TAPPI JOURNAL, October 1991, Vol. 74(10)
Effect of mos2 on corrosion inhibition of nlgi reference grease, TAPPI JOURNAL, October 1991, Vol. 74(10)
Magazine articles
The identification of critical behaviors: the first step in a behavior-based safety process, TAPPI JOURNAL, October 1991, Vol. 74(10)
The identification of critical behaviors: the first step in a behavior-based safety process, TAPPI JOURNAL, October 1991, Vol. 74(10)
Magazine articles
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)
Journal articles
The effect of a fourth press on print quality, TAPPI JOURNAL, September 1991, Vol. 74(9)
The effect of a fourth press on print quality, TAPPI JOURNAL, September 1991, Vol. 74(9)
Journal articles
Discussion of impulse drying physics: comments on e. l. back's 'why is press drying/impulse drying delayed?', TAPPI JOURNAL, September 1991, Vol. 74(9)
Discussion of impulse drying physics: comments on e. l. back's 'why is press drying/impulse drying delayed?', TAPPI JOURNAL, September 1991, Vol. 74(9)
Journal articles
Editorial: Gaurav Pranami: Nonwovens and coatings R&D expert, TAPPI JOURNAL November 2014
Editorial: Gaurav Pranami: Nonwovens and coatings R&D expert, TAPPI JOURNAL November 2014
Journal articles
Fundamental study on developing wood powder as an additive of paperboard, TAPPI JOURNAL November 2014
Fundamental study on developing wood powder as an additive of paperboard, TAPPI JOURNAL November 2014
Journal articles
The potential of fly ash-based calcium silicate as paper filler: Physical properties and printability
The potential of fly ash-based calcium silicate as paper filler: Physical properties and printability, TAPPI JOURNAL October 2014
Journal articles
Magazine articles
Web lateral instability caused by nonuniform paper properties, TAPPI Journal January 2022
ABSTRACT: Lateral or cross-machine direction (CD) web movement in printing or converting can cause problems such as misregistration, wrinkles, breaks, and folder issues. The role of paper properties in this problem was studied by measuring lateral web positions on commercial printing presses and on a pilot-scale roll testing facility (RTF). The findings clearly showed that CD profiles of machine direction (MD) tension were a key factor in web stability. Uneven tension profiles cause the web to move towards the low-tension side. Although extremely nonuniform tension profiles are visible as bagginess, more often, tension profiles must be detected by precision devices such as the RTF. Once detected, the profiles may be analyzed to determine the cause of web offset and weaving problems.Causes of tension profiles can originate from nonuniform paper properties. For example, by means of case studies, we show that an uneven moisture profile entering the dryer section can lead to a nonuniform tension profile and lateral web movement. Time-varying changes in basis weight or stiffness may also lead to oscillations in the web’s lateral position. These problems were corrected by identifying the root cause and making appropriate changes. In addition, we developed a mathematical model of lateral stability that explains the underlying mechanisms and can be used to understand and correct causes of lateral web instability.