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Journal articles
Open Access
Pre-damping effects on water absorption and drying dynamics in flexographic printing, TAPPI Journal November 2025

ABSTRACT: Optimizing flexographic printability can involve the ink and the substrate, as well as the printing process. It has been widely reported in the literature that controlling topography of the substrate and its porosity are vital for good flexographic printability, especially when using water-based inks. This study focuses on how pre-damping a surface impacts liquid absorption and improves wet trapping (ink on ink with no intermediate drying) in flexographic printing. A Prüfbau universal print tester was adapted to analyze flexographic wet-on-wet ink printing and trapping using yellow and magenta inks for contrast. Slow drying of the first ink layer (yellow) leads to mottle when the second layer (magenta) is applied. The study explores the “wet sponge” hypothesis: a pre-damped surface should absorb liquid faster. The Lucas- Washburn equation describes long-term absorption, but it does not capture short-term uptake, which instead follows a linear dependence on time.

Journal articles
Open Access
OSHA's voluntary protection program - the rewards are worth the risk, TAPPI JOURNAL, November 1997, Vol. 80(11)

OSHA's voluntary protection program - the rewards are worth the risk, TAPPI JOURNAL, November 1997, Vol. 80(11)

Journal articles
Open Access
Shop talk: Moisture profile management, TAPPI JOURNAL, November 1997, Vol. 80(11)

Shop talk: moisture profile management, TAPPI JOURNAL, November 1997, Vol. 80(11)

Journal articles
Open Access
Maintenance and repair of energy-efficient integral horsepower low-voltage motors, TAPPI JOURNAL, November 1997, Vol. 80(11)

Maintenance and repair of energy-efficient integral horsepower low-voltage motors, TAPPI JOURNAL, November 1997, Vol. 80(11)

Journal articles
Open Access
Plant maintenance: changing from a necessary evil to a profit center, TAPPI JOURNAL, November 1997, Vol. 80(11)

Plant maintenance: changing from a necessary evil to a profit center, TAPPI JOURNAL, November 1997, Vol. 80(11)

Journal articles
Open Access
On management: Machine doctors: A prescription for teamwork, TAPPI JOURNAL, October 1997, Vol. 80(10)

On management: machine doctors: a prescription for teamwork, TAPPI JOURNAL, October 1997, Vol. 80(10)

Journal articles
Open Access
Factors influencing the rate of charge decay, TAPPI JOURNAL, October 1997

Factors influencing the rate of charge decay, TAPPI JOURNAL, October 1997

Journal articles
Open Access
Highly branched cationic polyelectrolytes: fines retention, TAPPI JOURNAL, October 1997, Vol. 80(10)

Highly branched cationic polyelectrolytes: fines retention, TAPPI JOURNAL, October 1997, Vol. 80(10)

Journal articles
Open Access
Peroxyformic acid pulping of nonwood plants by the milox method, part 2: reed pulp for woodfree fine papers, TAPPI JOURNAL, October 1997, Vol. 80(10)

Peroxyformic acid pulping of nonwood plants by the milox method, part 2: reed pulp for woodfree fine papers, TAPPI JOURNAL, October 1997, Vol. 80(10)

Journal articles
Open Access
Financial performance, capital expenditures, and international activities of the north american pulp and paper industry, TAPPI JOURNAL, October 1997, Vol. 80(10)

Financial performance, capital expenditures, and international activities of the north american pulp and paper industry, TAPPI JOURNAL, October 1997, Vol. 80(10)

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