Compression refining: the future of refining? Application to bleached kraft eucalyptus pulp
Source abstract
Abstract
Abstract A new compression refining technology has been tested in various conditions with a model Eucalyptus bleached kraft pulp. Its performances were also compared with those obtained with traditional LC refining of the same pulp. Compression refining of the Eucalyptus pulp led to a much better °SR/strength compromise than conventional LC refining. High strength properties can also be achieved by compression refining, in a similar range, or depending on the conditions, even better than LC refining. The higher the strength requested, the largest the advantages of this technology: for a given resistance, up to 40°SR difference with LC refined pulp can be obtained. The lower °SR is due to less cellulosic fines release which also results in papers combining a high strength and a high permeability which cannot be obtained with traditional LC refining. Indeed, with LC refining, a high strength is generally associated to a low permeability. The upscaling of this technology seems possible since large production devices are already on the market for other applications than paper/pulp. With this new pulp behaviour, papermakers will have to learn to think differently as paper strength and °SR can now be decorrelated.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Lignin and Wood Chemistry
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
131844 Centre Technique du Papier , Grenoble , France
Funding
This work was supported by CTP and participants to the AlterRaf project (Ahlström Munksjö, Billerud Korsnas, Essity, Georgia Pacific, Mercer), they are all acknowledged
References (10)
Show source-provided references
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