Canadian Oilseed flax in traditional pulping: 2. Bleaching characteristics

Ulrike Tschirner, Jagannadh Satyavolu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Flax fiber from Canadian oilseed flax straw proved to be a valuable additive to traditional hardwood kraft pulping. The advantages of the flax fiber addition are a lower Kappa number and improved strength properties after the kraft cook. The flax containing pulps show very favorable bleaching behaviors, resulting in significantly lower chlorine dioxide consumption. Bleached hardwood pulp samples produced with addition of up to 35 % flax fiber in the digester were beaten in a valley beater and strength properties compared to a bleached hardwood control and a bleached hardwood/softwood sample (ratio 50/50). The advantage in tear strength through addition of flax fiber carries through the bleaching process. Tensile and bust strength of the bleached samples are comparable to the hardwood control.

Original languageEnglish (US)
Title of host publicationTAPPI Pulping/Process and Product Quality Conference
Pages698-702
Number of pages5
StatePublished - 2000
EventProceedings of the 2000 TAPPI Pulping/Process and Product Quality Process - Boston, MA, United States
Duration: Nov 5 2000Nov 8 2000

Publication series

NameTAPPI Pulping/Process and Product Quality Conference

Other

OtherProceedings of the 2000 TAPPI Pulping/Process and Product Quality Process
CountryUnited States
CityBoston, MA
Period11/5/0011/8/00

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  • Cite this

    Tschirner, U., & Satyavolu, J. (2000). Canadian Oilseed flax in traditional pulping: 2. Bleaching characteristics. In TAPPI Pulping/Process and Product Quality Conference (pp. 698-702). (TAPPI Pulping/Process and Product Quality Conference).