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Journal articles
Modern NCG practice, TAPPI Journal July 2026
ABSTRACT: New innovations have been put in operation for collection and handling systems of noncondensable gases (NCGs) in modern kraft pulp mills. This work investigates technologies in new pulp mills that aim to achieve the benefits of odor-free processes while enhancing chemical circulation within the mill. It describes and discusses both past and current systems for collecting and handling NCGs. The mills studied have designed and implemented their NCG systems within the past 10 to 15 years. New innovations have emerged, offering promising methods to further reduce occasional sulfurous odor emissions from the kraft process. These methods explore pretreatment and sulfuric gas stream reuse options in process units where these gases are generated or during the transportation of these side streams to their final destruction site. Using modern practices outlined in this paper, malodorous gases can be collected to the extent that a kraft pulp mill is essentially odor-free pending operator errors or major equipment malfunctions. One of the difficult aspects is that NCG systems in kraft mills are often designed case-by-case, as well as by various equipment vendors and with varying numbers of destruction sites. The actual detailed design depends on the chosen layout, process configuration depending on individual equipment purchased, and even on the design practices of individual suppliers.
Journal articles
Effects of in-plane straining on the out-of-plane delamination properties of paperboard, TAPPI Journal March 2026
ABSTRACT: Delamination strength is an essential property for the creasing and folding operations of paperboard into boxes. Due to fixation during creasing, the paperboard suffers in-plane straining. In the present study, we aim to increase our understanding of how in-plane straining affects the delamination properties of paperboard. Samples of paperboard were first strained in in-plane tensile loading, both in the machine-direction and in the cross-direction. Afterward, the paperboard is loaded in the out-of-plane (ZD) direction. Three different grades of commercial paperboard from two major manufacturers were tested in a climate-controlled lab. The results showed similar results for all grades of paperboard, with the delamination strength and the out-of-plane stiffness decreasing virtually linearly with pre-straining. With about 5% plastic in-plane straining, the strength was reduced by about 20% and the stiffness decreased by more than 50% for all grades of paperboard. Normalizing the strength and the stiffness with their values without pre-straining reveals virtually the same relation for all grades of paperboard. If proven to be a general result, this will prove valuable in reducing the demand for experiments.
Conference papers
The Effect Of Latex Characteristics And Addition Level On Th
The Effect Of Latex Characteristics And Addition Level On The Properties Of Cellulose Nanofiber Films, PaperCon 2017
Conference papers
Dry Chip Feedrate Control Using Online Chip Moisture, 2017PE
Dry Chip Feedrate Control Using Online Chip Moisture, 2017PEERS
Baby Diaper trends around the world and How they affect raw materials suppliers, 2011 Innovative Nonwovens Conference
Baby Diaper trends around the world and How they affect raw materials suppliers, 2011 Innovative Nonwovens Conference
Transformation of the Insulation Industry through Green Building and Indoor Air Quality Standards, 2011 Innovative Nonwovens Conference
Transformation of the Insulation Industry through Green Building and Indoor Air Quality Standards, 2011 Innovative Nonwovens Conference
Industrial Nanofiber Needs of the Technical Textile Industry: A Case Study, 2011 Innovative Nonwovens Conference
Industrial Nanofiber Needs of the Technical Textile Industry: A Case Study, 2011 Innovative Nonwovens Conference
Soy Chemistry Fiber & Film Developments, 2011 Innovative Nonwovens Conference
Soy Chemistry Fiber & Film Developments, 2011 Innovative Nonwovens Conference
Latest Techniques for Web Imaging and Quality Control, 2011 Innovative Nonwovens Conference
Latest Techniques for Web Imaging and Quality Control, 2011 Innovative Nonwovens Conference
High Performance Nonwovens â?Š, 2011 Innovative Nonwovens Conference
High Performance Nonwovens …, 2011 Innovative Nonwovens Conference