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Large Strategic Investment: Koehler Paper Expands Production Capacities for Premium Playing Card Board

Koehler Paper, a Koehler Group company, is the global market leader in the production of playing card board. Koehler’s top-quality specialty paper is used not only for trading cards, but also for playing cards in nearly every casino in the world. And by significantly expanding its production capacity, Koehler Paper is now laying the foundation for its next development stage and sending a clear message of long-term growth, innovative capacity, and global competitiveness.

Aquakraft Increases Containerboard Capacity at Ferizli Mill

Turkish paper producer Aquakraft Kağıt ve Ambalaj and Voith have signed a contract for a comprehensive rebuild of the paper machine and stock preparation at Aquakraft’s Ferizli mill, located around 170 kilometers east of Istanbul.

EPIQ Boosts Mill Efficiency with Smart Upgrades

As a mill’s equipment ages, producers are still faced with the issue of improving operational efficiency and perhaps increasing output to compete with growing competition while keeping costs under control. Often, this could also mean a total mill conversion, for example, from newsprint to packaging grades. Or maybe just a change in roll width and/or diameter.

Southern Pine Oxygen Delignified Pulps Produced in a Berty Throughflow Reactor: How to Obtain the Highest Degree of Delignification while Maintaining Pulp Yield and Quality, 2011 International Pulp Bleaching Conference

Southern Pine Oxygen Delignified Pulps Produced in a Berty Throughflow Reactor: How to Obtain the Highest Degree of Delignification while Maintaining Pulp Yield and Quality, 2011 International Pulp Bleaching Conference

COMPARISON OF THE COATING STRENGTH OF FOUR BINDER CHEMISTRIES USED IN PAPERBOARD COATINGS, 19PaperCon

COMPARISON OF THE COATING STRENGTH OF FOUR BINDER CHEMISTRIES USED IN PAPERBOARD COATINGS, 19PaperCon

Adhesion in Extrusion Coating: Time in the Air Gap Revisited

Adhesion in Extrusion Coating: Time in the Air Gap Revisited, 2016 PLACE Conference

Testing and Predicting Impact Puncture Resistance of Multila

Testing and Predicting Impact Puncture Resistance of Multilayer Flexible Packaging Films, 2016 PLACE Conference

Quantification of block testing for coated paper substrates, TAPPI Journal November 2024

ABSTRACT: Block resistance is a critical property for coated paper and board substrate that will be rolled, stacked, or otherwise contact itself after coating. Small differences in the coated substrate’s blocking can determine whether the substrate can be successfully used for its designated purpose. However, this crucial property is typically evaluated using a qualitative scale that is based on subjective operator ratings and impacted by factors that include: (1) sound of coated substrate during separation, and (2) force with which substrates are separated. This paper tests the hypothesis that quantifying the block test by measuring the force required to peel samples apart improves the test by: (1) providing more standardized testing conditions by controlling peel force and rate; (2) more clearly differentiating samples that experience minimal to some blocking; and (3) maintaining customizability to evaluate customer-specific test conditions. The method developed in this study uses a standard block tester and block testing conditions, but it peels the coated paper samples using a hot tack/heat seal instrument with force measurement capabilities. This paper demonstrates, using the instrument’s heat seal capabilities, that it can measure peel forces that represent the full range of observable block scores. The efficacy of this method was evaluated by having a group of trained operators engage in a randomized, blind experiment where they assessed block resistance on a set of coated paper samples using a modified qualitative block scale and compared their results to force measurements collected using the proposed method. The sample set included two coatings that have successfully run in commercial trials with minimal blocking, and one coating that experienced significant blocking in commercial trials despite only exhibiting some blocking at standard block test conditions in laboratory testing. The quantitative test method presented in this paper clearly differentiated these samples, whereas the qualitative assessment could not predict which samples had suitable block resistance for commercial use. As any tensile tester capable of measuring with 0.1 N resolution can be used for the Quantitative Block Test, the proposed method can be widely adopted. Furthermore, this method can be used for any block condition.

BUILDING AN EFFECTIVE USER EXPERIENCE AT PULP AND PAPER, TAPPICon24

THEORETICAL NORMALIZED REFINING SPACE (TNRS) AS A NEW TOOL FOR ASSESSING THE PULP REFINING PROCESS, TAPPICon24