Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Committees
Collections
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
Evaluation of a laser-optical resin particle counter, Solutions! & TAPPI JOURNAL, March 2003, Vol. 2(3) (239KB)
Evaluation of a laser-optical resin particle counter, Solutions! & TAPPI JOURNAL, March 2003, Vol. 2(3) (239KB)
Journal articles
Comparing the fiber flocculation behavior of several wet-end retention systems, Solutions! & TAPPI JOURNAL, April 2004 (251KB)
Comparing the fiber flocculation behavior of several wet-end retention systems, Solutions! & TAPPI JOURNAL, April 2004 (251KB)
Journal articles
Magazine articles
Upscaling of foam forming technology for pilot scale, TAPPI JOURNAL August 2019
ABSTRACT: The need for production cost savings and changes in the global paper and board industry during recent years have been constants. Changes in the global paper and board industry during past years have increased the need for more cost-efficient processes and production technologies. It is known that in paper and board production, foam typically leads to problems in the process rather than improvements in production efficiency. Foam forming technology, where foam is used as a carrier phase and a flowing medium, exploits the properties of dispersive foam. In this study, the possibility of applying foam forming technology to paper applications was investigated using a pilot scale paper forming environment modified for foam forming from conventional water forming. According to the results, the shape of jet-to-wire ratios was the same in both forming methods, but in the case of foam forming, the achieved scale of jet-to-wire ratio and MD/CD-ratio were wider and not behaving sensitively to shear changes in the forming section as a water forming process would. This kind of behavior would be beneficial when upscaling foam technology to the production scale. The dryness results after the forming section indicated the improvement in dewatering, especially when foam density was at the lowest level (i.e., air content was at the highest level). In addition, the dryness results after the pressing section indicated a faster increase in the dryness level as a function of foam density, with all density levels compared to the corresponding water formed sheets. According to the study, the bonding level of water- and foam-laid structures were at the same level when the highest wet pressing value was applied. The results of the study show that the strength loss often associated with foam forming can be compensat-ed for successfully through wet pressing.
Journal articles
Magazine articles
The evolution of reel statistical methods, TAPPI Journal June 2019
ABSTRACT: Multiple statistical methods for calculating the variance partition analysis (VPA) of reel data have existed for decades. In the paper industry, VPA is also commonly known as reel statistics. VPA commonly consists of total variance (TOT) that is then divided into three components: cross direction (CD), machine direction (MD), and residual (RES). A common mathematical procedure is referred to as ANOVA (analysis of variance). TAPPI Standard Test Method T 545 “Cross-machine grammage profile measurement (gravimetric method)” addresses paper testing and includes the ANOVA equations that have also been used to analyze scanning data.In the 1990s, TAPPI published TIP 1101-01 “Calculation and partitioning of variance using paper machine scanning sensor measurements,” which contained simple formulas that were easy to implement and could be used by a nov-ice to generate statistics on a spreadsheet. All involved quality control system (QCS) suppliers agreed to support this common method in their QCS. TIP 1101 was recently revised, and this paper concerns the analysis of data collected from a scanning sensor in a QCS and the creation of a common method for the calculation of reel statistics by TAPPI’s Process Control Division.
Journal articles
Magazine articles
Editorial: The changing face of the coated paper industry, TAPPI JOURNAL January 2018
Editorial: The changing face of the coated paper industry, TAPPI JOURNAL January 2018
Journal articles
Performance of steels against corrosion in peracid bleach media, TAPPI JOURNAL, July 2005, Vol. 4(7) (116 KB)
Performance of steels against corrosion in peracid bleach media, TAPPI JOURNAL, July 2005, Vol. 4(7) (116 KB)
Journal articles
Automatic control of additives with modern online measurement technology raises papermaker productivity, TAPPI JOURNAL, June 2005, Vol. 4(6) (3.81MB)
Automatic control of additives with modern online measurement technology raises papermaker productivity, TAPPI JOURNAL, June 2005, Vol. 4(6) (3.81MB)
Journal articles
Effect of thermal treatment on the structure of PCC particles, TAPPI JOURNAL, November 2005, Vol. 4(11) (352 KB)
Effect of thermal treatment on the structure of PCC particles, TAPPI JOURNAL, November 2005, Vol. 4(11) (352 KB)
Journal articles
TJ web enhancements, TAPPI JOURNAL, August 2002, Vol. 1(6) (
TJ web enhancements, TAPPI JOURNAL, August 2002, Vol. 1(6) (49KB)