The Effect of ECF Bleaching on Optical and Mechanical Properties of Bagasse Soda Pulp

Veisi, Ramin; Behroz, Rabi; Khajeh Ali, Iman

doi:10.22092/ijwpr.2016.105981

Document Type : Research Paper

Authors

https://doi.org/10.22092/ijwpr.2016.105981

Abstract

This study and it aim was accomplished on the effect of ECF bleaching on optical and mechanical properties of bagasse soda pulp. For this purpose, some soda unbleached pulps were randomly selected from Pars mill. Then these pulps were bleached with OD(Ep)P and OD(Ep)D stages by oxygen, chlorine dioxide and hydrogen peroxide. The hand sheets with 60 gr/m2 were prepared from soda unbleached and bleached from EH(control), OD(Ep)P and OD(Ep)D stages pulps, then the optical and mechanical properties were measured and compared according by using TAPPI Standard test methods. The results showed that residual lignin and kappa number decreased following above-mentioned of bleaching stages. The brightness, greenness and K/S ratio were increased in bagasse soda pulps by bleaching. In different treatments, the brightness, opacity, absorbance coefficient, burst, breaking length, tensile, tear strength sensible increased in OD(Ep)P and OD(Ep)D as compared with EH (control) mill bleaching stages. In general, first OD(Ep)P stage, then OD(Ep)D were better than EH (control) mill stage in more of were measured properties.

Keywords

Main Subjects

Pulp and paper

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Iranian Journal of Wood and Paper Science Research

The Effect of ECF Bleaching on Optical and Mechanical Properties of Bagasse Soda Pulp

References

References

Volume 31, Summer 2 - Serial Number 55
May 2016
Pages 349-361

The Effect of ECF Bleaching on Optical and Mechanical Properties of Bagasse Soda Pulp

References

References

Volume 31, Summer 2 - Serial Number 55May 2016Pages 349-361

Volume 31, Summer 2 - Serial Number 55
May 2016
Pages 349-361