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Magazine articles
Deinking Difficulties Related to Ink Formulation, Printing P
Deinking Difficulties Related to Ink Formulation, Printing Process and Type of Paper
Paper Recycling Technology Needs for the New Millennium, 1999 Recycling Symposium Proceedings
Paper Recycling Technology Needs for the New Millennium, 1999 Recycling Symposium Proceedings
Deinked Market Pulp: An Economic Lesson, 1999 Recycling Symposium Proceedings
Deinked Market Pulp: An Economic Lesson, 1999 Recycling Symposium Proceedings
50% Recovery Goal: Fact or Fiction?, 1999 Recycling Symposium Proceedings
50% Recovery Goal: Fact or Fiction?, 1999 Recycling Symposium Proceedings
Pulping
The latest Pulping industry focused events, news, educational resources, publications, standards and conference documents.
TAPPI News
An Accent on Innovation
An Accent on Innovation On May 13, 2014, Eric Fletty and I had the opportunity to visit with one of TAPPI’s Sustaining Member companies, Kadant Inc., at its Kadant Johnson facility in Three Rivers,
News
‘Make in India’ vs. Making Paper in India: A Balancing Act?
This is an excerpt from an article originally published in the Jun-Jul 2017 issue of Paper Mart India magazine (www.papermart.in). With the incessant and nagging challenges of raw material availability, adherence to environmental norms, and competing with swiftly increasing cheaper imports, India’s pulp and paper industry has the arduous target of creating 1,000,000 tonnes (metric tons) of integrated capacities in pulp, paper, and paperboard to meet consumption demands—a daunting task without conducive policy environment. Does the Indian government’s “Make in India” campaign take stock of challenging manufacturing conditions in this vital industry? The editors of Paper Mart India interviewed experts in India’s growing pulp and paper industry to learn more.
News
Mountains of waste could lead to new U.S. manufacturing, jobs
By Kathleen Phillips, Texas A&M University Researchers at Texas A&M University are exploring ways that lignin waste from pulp and paper operations can be transformed into carbon fibers used in a range of products from tennis rackets to automobiles.
News
Moving maintenance from reactive to proactive
My experience has taught me that most folks working in the pulp and paper industry don't have an understanding of what it takes to change a reactive maintenance department to a proactive and reliable one.
Journal articles
Conversion of paper-grade pulp from rice straw into dissolving pulp, TAPPI Journal June 2025
ABSTRACT: About 1,165 million metric tons of rice straw is generated every year worldwide, which can be a good source for the circular bioeconomy. In this research paper, the paper-grade pulp from rice straw was converted to dissolving-grade pulp by fractionation in a biorefinery initiative. Rice straw was cooked at an optimum condition of 8% potassium hydroxide (KOH) charge for 120 min at 150°C and produced a pulp yield of 47.2% with a kappa number of 18.5. Subsequently, D0(EP)D1 bleaching was carried out for the produced pulp, and the brightness of the pulp reached to 82.4%. From the black liquor, 16.5% of the lignin and 11.9% of the hemicellulose were isolated for producing biobased products and chemicals, and then the spent liquor was used for soil amendment. The bleached pulp was fractionated in a Bauer McNett fiber classifier. The pulp fibers retained on 16-, 30-, and 50-mesh screens were used as a longer fiber fraction pulp, and pulp fibers retained on 100- and 200-mesh screens were used as a shorter fiber pulp. The longer and shorter fiber fraction pulps were analyzed for cellulose, R10, pentosan, and viscosity. The long fiber fraction pulps were characterized by higher cellulose (88.2% vs. 83.1%) and lower pentosan (11.3% vs. 13.0%) content than the shorter fiber fraction pulps. The longer fiber fraction was further treated with cold KOH to remove residual hemicellulose. The KOH extraction reduced pentosan content in pulp to 6.3% and increased á-cellulose content to 91.3%. The short fiber fraction was converted to monomeric sugars using cellulase enzymes with varying reaction time, temperature, and consistency. The efficiency of cellulase activity was assessed through glucose yield and residual dry weight. A temperature of 45°C, 5.0 pH, 5% consistency, and 6 filter paper units/gram (FPU/g) o.d. pulp resulted in maximum sugar conversion of 85.7%.