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Journal articles
Open Access
Incremental tons - to make or not to make, that is the question, TAPPI JOURNAL, April 2000, Vol. 83(4)

Incremental tons - to make or not to make, that is the question, TAPPI JOURNAL, April 2000, Vol. 83(4)

Journal articles
Magazine articles
Open Access
Determining operating variables that impact internal fiber bonding using Wedge statistical analysis

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
Open Access
Control of malodorous gases emission from wet-end white water with hydrogen peroxide, TAPPI Journal October 2021

ABSTRACT: White water is highly recycled in the papermaking process so that its quality is easily deteriorated, thus producing lots of malodorous gases that are extremely harmful to human health and the environment. In this paper, the effect of hydrogen peroxide (H2O2) on the control of malodorous gases released from white water was investigated. The results showed that the released amount of total volatile organic compounds (TVOC) decreased gradually with the increase of H2O2 dosage. Specifically, the TVOC emission reached the minimum as the H2O2 dosage was 1.5 mmol/L, and meanwhile, the hydrogen sulfide (H2S) and ammonia (NH3) were almost completely removed. It was also found that pH had little effect on the release of TVOC as H2O2 was added, but it evidently affect-ed the release of H2S and NH3. When the pH value of the white water was changed to 4.0 or 9.0, the emission of TVOC decreased slightly, while both H2S and NH3 were completely removed in both cases. The ferrous ions (Fe2+) and the copper ions (Cu2+) were found to promote the generation of hydroxyl radicals (HO•) out of H2O2, enhancing its inhibition on the release of malodorous gases from white water. The Fe2+/H2O2 system and Cu2+/H2O2 system exhibited similar efficiency in inhibiting the TVOC releasing, whereas the Cu2+/H2O2 system showed better perfor-mance in removing H2S and NH3.

Journal articles
Open Access
Wet and dry coating structure of calcium carbonate pigments with narrow particle size distribution, TAPPI JOURNAL, February 2000, Vol. 83(2)

Wet and dry coating structure of calcium carbonate pigments with narrow particle size distribution, TAPPI JOURNAL, February 2000, Vol. 83(2)

Journal articles
Open Access
Impulse drying of board grades: converting trials, TAPPI JOURNAL, October 2000, Vol. 83(10)

Impulse drying of board grades: converting trials, TAPPI JOURNAL, October 2000, Vol. 83(10)

Journal articles
Open Access
The business of research: strategies for the future, TAPPI JOURNAL, December 2000, Vol. 83(12)

The business of research: strategies for the future, TAPPI JOURNAL, December 2000, Vol. 83(12)

Journal articles
Open Access
Effect of the paper structure and composition on the surface sizing pick-up, TAPPI JOURNAL, December 2000, Vol. 83(12)

Effect of the paper structure and composition on the surface sizing pick-up, TAPPI JOURNAL, December 2000, Vol. 83(12)

Journal articles
Open Access
Agile manufacturing: enabling optimal value chain management through new production technology, TAPPI JOURNAL, December 2000, Vol. 83(12)

Agile manufacturing: enabling optimal value chain management through new production technology, TAPPI JOURNAL, December 2000, Vol. 83(12)

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
Print gloss development on a model substrate, TAPPI JOURNAL, July 1997, Vol. 80(7)

Print gloss development on a model substrate, TAPPI JOURNAL, July 1997, Vol. 80(7)

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