The Effect of ECF Bleaching on Optical and Mechanical Properties of Bagasse Soda Pulp | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 14, Volume 31, Summer 2 - Serial Number 55, May 2016, Pages 349-361 PDF (612.12 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2016.105981 | ||
| Authors | ||
| Ramin Veisi* ; Rabi Behroz; Iman Khajeh Ali | ||
| 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 | ||
| Soda pulp; Bleaching Stage; ECF Bleaching; Optical and mechanical properties | ||
| References | ||
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