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Journal articles
Subscription Access
Focusing on the future of paper machines, TAPPI JOURNAL, January 1998, Vol. 81(1)

Focusing on the future of paper machines, TAPPI JOURNAL, January 1998, Vol. 81(1)

Journal articles
Subscription Access
Influence of coating composition on web release in high speed film transfer coating, TAPPI JOURNAL, January 1998, Vol. 81(1)

Influence of coating composition on web release in high speed film transfer coating, TAPPI JOURNAL, January 1998, Vol. 81(1)

Journal articles
Subscription Access
The role of analytical winding dynamics in winder design, TAPPI JOURNAL, January 1998, Vol. 81(1)

The role of analytical winding dynamics in winder design, TAPPI JOURNAL, January 1998, Vol. 81(1)

Journal articles
Subscription Access
Tools of the hedging trade, TAPPI JOURNAL, January 1998, Vol

Tools of the hedging trade, TAPPI JOURNAL, January 1998, Vol. 81(1)

Journal articles
Open Access
89APR177

MD microstriations in paper: a two-sided shrinkage phenomenon?, TAPPI JOURNAL April 1989

Journal articles
Magazine articles
Open Access
Lignin-based resins for kraft paper applications, TAPPI Journal November 2019

ABSTRACT: We investigated miscanthus (MS) and willow (W) lignin-furfural based resins as potential reinforce-ment agents on softwood and hardwood kraft paper. These resins might be sustainable alternatives to the commercial phenolformaldehyde (PF) resins. Phenol is a petrochemical product and formaldehyde has been classified as a carcinogen by the U.S. Environmental Protection Agency. The lignin used in this study was derived from hot water extraction (160ºC, 2 h) of MS and W biomass, and may be considered sulfur-free. These biorefinery lignins were characterized for their chemical composition and inherent properties via wet chemistry and instrumental techniques. The resin blends (MS-resin and W-resin) were characterized for their molecular weight, thermal behavior, and mechanical properties. Mechanical properties were measured by the resin’s ability to reinforce softwood and hard-wood kraft papers. The effect of adding hexamethylenetetramine (HMTA), a curing agent, to the resin was also examined. Mixtures of PF and lignin-based resins were investigated to further explore ways to reduce use of non-renewables, phenol, and carcinogenic formaldehyde. The results show that lignin-based resins have the potential to replace PF resins in kraft paper applications. For softwood paper, the highest strength was achieved using W-resin, without HMTA (2.5 times greater than PF with HMTA). For hardwood paper, MS-resin with HMTA gave the highest strength (2.3 times higher than PF with HMTA). The lignin-based resins, without HMTA, also yielded mechanical properties comparable to PF with HMTA.

Journal articles
Magazine articles
Open Access
Creating adaptive predictions for packaging-critical quality parameters using advanced analytics and machine learning, TAPPI Journal November 2019

ABSTRACT: Packaging manufacturers are challenged to achieve consistent strength targets and maximize pro-duction while reducing costs through smarter fiber utilization, chemical optimization, energy reduction, and more. With innovative instrumentation readily accessible, mills are collecting vast amounts of data that provide them with ever increasing visibility into their processes. Turning this visibility into actionable insight is key to successfully exceeding customer expectations and reducing costs. Predictive analytics supported by machine learning can provide real-time quality measures that remain robust and accurate in the face of changing machine conditions. These adaptive quality “soft sensors” allow for more informed, on-the-fly process changes; fast change detection; and process control optimization without requiring periodic model tuning.The use of predictive modeling in the paper industry has increased in recent years; however, little attention has been given to packaging finished quality. The use of machine learning to maintain prediction relevancy under ever-changing machine conditions is novel. In this paper, we demonstrate the process of establishing real-time, adaptive quality predictions in an industry focused on reel-to-reel quality control, and we discuss the value created through the availability and use of real-time critical quality.

Journal articles
Open Access
Image analytical monitoring of paper quality - a feasibility

Image analytical monitoring of paper quality - a feasibility study, TAPPI JOURNAL, November 2006

Journal articles
Open Access
Use of enzymes for reduction in refining energy - laboratory

Use of enzymes for reduction in refining energy - laboratory studies, TAPPI JOURNAL, November 2006

Journal articles
Open Access
Coating talc does not have to have poor rheology!, Solutions! & TAPPI JOURNAL, August 2004, Vol. 3(8) (268KB)

Coating talc does not have to have poor rheology!, Solutions! & TAPPI JOURNAL, August 2004, Vol. 3(8) (268KB)

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