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Journal articles
Effect of PCC filler on dewatering of fiber suspension
Effect of PCC filler on dewatering of fiber suspension, TAPPI JOURNAL, November 2006
Journal articles
The Effectiveness of TAED on the Peroxide Bleaching
The Effectiveness of TAED on the Peroxide Bleaching of Mechanical, Chemical, and Recycled Pulp
Journal articles
Spectroscopic imaging ellipsometry of wood fiber cell walls: a comparison with confocal microscopy, TAPPI JOURNAL, August 2007
Spectroscopic imaging ellipsometry of wood fiber cell walls: a comparison with confocal microscopy, TAPPI JOURNAL, August 2007
Journal articles
Prediction of the Solubility of Recovery Boiler Precipitator Ash, TAPPI JOURNAL May 2009
Prediction of the Solubility of Recovery Boiler Precipitator Ash, TAPPI JOURNAL May 2009
Journal articles
Linking Pulp Variations to TMP Operation by Better Selection
Linking Pulp Variations to TMP Operation by Better Selection and Treatment of Process Data
Journal articles
The influence of pigment particle shape on the in-plane tensile strength properties of kaolin-based coating layers, TAPPI JOURNAL
The influence of pigment particle shape on the in-plane tensile strength properties of kaolin-based coating layers, TAPPI JOURNAL
Journal articles
A review of gas flows in fiber suspensions, TAPPI JOURNAL, Online Exclusive, November 2003, Vol. 2(11) (775KB)
A review of gas flows in fiber suspensions, TAPPI JOURNAL, Online Exclusive, November 2003, Vol. 2(11) (775KB)
Journal articles
Improving energy efficiency in the forest products industry, TAPPI JOURNAL, November 2004, Vol. 3(11) (136KB)
Improving energy efficiency in the forest products industry, TAPPI JOURNAL, November 2004, Vol. 3(11) (136KB)
Journal articles
Magazine articles
Application of ATR-IR measurements to predict the deinking efficiency of UV-cured inks, TAPPI Journal January 2022
ABSTRACT: In recent years, ultraviolet (UV)-curable ink has been developed and widely used in various printing applications. However, using UV-printed products (UV prints) in recovered paper recycling causes end-product dirt specks and quality issues. A new method was developed that can distinguish UV prints from other prints by means of attenuated total reflectance infrared (ATR-IR) spectroscopy. Application of this method could allow more efficient use of UV prints as raw materials for paper recycling.First, a mill trial was performed using UV prints alone as raw materials in a deinked pulp (DIP) process. Second, test prints were made with four types of UV inks: a conventional UV ink and three different highly-sensitive UV inks. Each print sample had four levels of four-color ink coverage patterns (100%, 75%, 50%, and 25%). Next, deinkability of all prints was evaluated by laboratory experiments. Finally, each print was measured using the ATR-IR method, and the relationship between the IR spectra and deinkability was investigated. Mill trial results showed that UV prints caused more than 20 times as many dirt specks as those printed with conventional oil-based ink. There were variations in recycling performance among UV prints taken from bales used for the mill trial. Lab tests clearly revealed that not all UV-printed products lead to dirt specks. In order to clarify the factors that affected deinkability of UV prints, the print samples were investigated by lab experiments. Key findings from lab experiments include: œ The number of dirt specks larger than 250 µm in diameter increased as the ink coverage increased. œ Higher ink coverage area showed stronger intensity of ATR-IR spectral bands associated with inks. These results indicate that deinkability of UV prints could be predicted by analysis of ATR-IR spectra. œ Finally, the method was applied for assessment of recovered paper from commercial printing presses. It was confirmed that this method made it possible to distinguish easily deinkable UV prints from other UV prints. Based on these findings, we concluded that the ATR-IR method is applicable for inspection of incoming recovered paper.
Journal articles
Magazine articles
Investigation of the Cellulose-Water Relationship by the Pressure Plate Method, TAPPI Journal July 2022
ABSTRACT: The swelling and water retention properties of pulp fibers are of basic importance in papermaking.