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Journal articles
Open Access
Influence of wet-end variables on the sizing efficiency of ASA on fine papers produced with Eucalyptus globulus kraft pulps

Influence of wet-end variables on the sizing efficiency of ASA on fine papers produced with Eucalyptus globulus kraft pulps

Journal articles
Open Access
Investigations of filtercake stability using a numerical simulation technique, TAPPI JOURNAL February 2008

Investigations of filtercake stability using a numerical simulation technique, TAPPI JOURNAL February 2008

Journal articles
Open Access
Effects of SO2 on superheater fouling in kraft recovery boilers, TAPPI JOURNAL February 2008

Effects of SO2 on superheater fouling in kraft recovery boilers, TAPPI JOURNAL February 2008

Journal articles
Open Access
Eucalyptus kraft pulp bleaching: state-of-the-art and new developments, TAPPI JOURNAL February 2008

Eucalyptus kraft pulp bleaching: state-of-the-art and new developments, TAPPI JOURNAL February 2008

Journal articles
Open Access
Improvement of eucalyptus bleached kraft pulp effluent treatment through combined ozone-biological treatment, TAPPI JOURNAL February 2008

Improvement of eucalyptus bleached kraft pulp effluent treatment through combined ozone-biological treatment, TAPPI JOURNAL February 2008

Journal articles
Open Access
Beating-induced yellowing of tcf- and ecf-bleached pulps alexander, Solutions! & TAPPI JOURNAL, January 2004, Vol. 3(1) (124KB)

Beating-induced yellowing of tcf- and ecf-bleached pulps alexander, Solutions! & TAPPI JOURNAL, January 2004, Vol. 3(1) (124KB)

Journal articles
Open Access
OCC pulp fractionation-a comparative study of fractionated and unfractionated stock, TAPPI JOURNAL, Online Exclusive, January 2004, Vol. 3(1) (KB)

OCC pulp fractionation-a comparative study of fractionated and unfractionated stock, TAPPI JOURNAL, Online Exclusive, January 2004, Vol. 3(1) (KB)

Journal articles
Open Access
Prediction of metals distribution in mill processes, part 1: metals equilibrium model, Solutions! & TAPPI JOURNAL, January 2004, Vol. 3(1) (215KB)

Prediction of metals distribution in mill processes, part 1: metals equilibrium model, Solutions! & TAPPI JOURNAL, January 2004, Vol. 3(1) (215KB)

Journal articles
Magazine articles
Open Access
Editorial: Celebrating an industry giant: Dr. Peter W. Hart, TAPPI Journal April 2024

ABSTRACT: On February 19, 1915, at the annual meeting of the American Paper and Pulp Association held at the Waldorf-Astoria Hotel in New York, a group of 35 people formed a new division called the “Technical Section of the American Paper and Pulp Association” with the objectives to: (1) stimulate interest in the science of pulp and papermaking; (2) provide means for the inter-change of ideas among its members; and (3) encourage original investigation. At that meeting, Professor Ralph H. McKee of the University of Maine (1909-1916) spoke. Professor McKee had initiated the first college course in Pulp and Paper in the United States. In his remarks he stated:

Journal articles
Magazine articles
Open Access
Effect of pressure and time on water absorption of coated paperboard based on a modified Cobb test method, TAPPI Journal April 2024

ABSTRACT: This manuscript presents the study of water absorption by paperboard subjected to water at high hydrostatic pressure based on a modified Cobb tester. The new tester is based on TAPPI Standard Test Method T 441; however, the water column can reach up to 550 mm. The evaluation consisted of measurements of water absorption for coated and uncoated paperboard at different exposure times from 5 s to 45 s and water column heights from 10 mm to 500 mm (corresponding to hydrostatic pressures 98 Pa and 4.9 kPa, respectively). The coatings were formulated as a combination of styrene acrylate (SA; two binder levels) and two types of ground calcium carbonates (differing particle sizes) to form the two pre-coating structures: open and closed. The coating weight was 6 g/m2 applied on 210 g/m2 solid bleached board (SBB). In addition, 210 g/m2 uncoated boards were studied. Characterization of the coatings was performed with scanning electron microscopy (SEM), mercury intrusion, and roughness. It was found that the new device properly mimics the conditions of the current Cobb tester. The characterization of the coating also confirmed the presence of more open/larger pores of open coatings, confirming the desired coating structure. The absorption of boards was mainly driven by exposure pressure by comparing with exposure time. This was already evident after shorter periods of exposure time at 5 s and also 15 s exposure time. Paperboards with open coatings showed slightly higher absorption than other boards.

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