Effects of Total Chlorine Free (Tcf) Bleaching on the Characteristics of Chemi Mechanical (Cmp) Pulp and Paper From Malaysian Durian (Durio Zibethinus Murr.) Rind

Abstract

Graphical abstract AbstractThe effects of bleaching process on the characteristics of pulp and paper produced from durian rind under chemi-mechanical pulping (CMP) method were investigated. All process and characteristic tests were conducted according to Malaysian International Organisation for Standardization (MS ISO) and Technical Association of the Pulp and Paper Industry (TAPPI). Three (3) stages of peroxide (P-P-P) bleaching sequence through the Total Chlorine Free (TCF) bleaching process were applied to the unbeaten and unbleached durian rind CMP pulp. Bleached CMP durian rind pulp drainage time (32s) decreased (faster) and CSF freeness level (172.50ml) increased as compared to a control pulp. It was obtained that overall optical (brightness (66.36 %)) and mechanical characteristics (tensile index (38.33 Nm/g), tearing index (7.56 mN.m 2 /g), bursting index (2.42 kPa.m 2 /g), and number of folds (43)) of durian rind CMP 60 gsm paper sheet improved as the TCF bleaching process was applied to the unbleached CMP durian rind pulp.Keywords: Bleaching, total chlorine free, peroxide, durian, durian rind, pulp, paper AbstrakKesan proses pelunturan terhadap ciri-ciri pulpa dan kertas yang dihasilkan daripada pulpa kulit durian menggunakan kaedah pempulpaan kimia-mekanikal (CMP) telah dikaji. Semua proses dan ujikaji yang terlibat dalam kajian ini telah dijalankan dengan merujuk kepada Organisasi Piawaian Antarabangsa Malaysia (MS ISO) dan piawaian Persatuan Teknikal Industri Pulpa dan Kertas (TAPPI). Tiga (3) peringkat rawatan peroksida (P-P-P) melalui proses pelunturan bebas klorin (TCF) telah dijalankan ke atas pulpa kulit durian kimia-mekanikal yang masih tidak dikenakan proses pelunturan dan pemukulan. Masa saliran pulpa kulit durian CMP terluntur menurun (lebih cepat) dan tahap kebebasan CSF meningkat berbanding dengan pulpa kawalan. Secara keseluruhannya, ciri-ciri optikal (kecerahan (66.36 %)) dan mekanikal (indeks tegangan (38.33 Nm/g), indeks koyak (7.56 mN.m 2 /g), indeks pecahan (2.42 kPa.m 2 /g) dan bilangan lipatan (43)) kertas 60 gsm kulit durian telah meningkat setelah proses pelunturan bebas klorin dilakukan ke atas pulpa kulit durian CMP tanpa kesan pelunturan.Kata kunci: Pelunturan, bebas klorin, peroksida, durian, kulit durian, pulpa, kertas

“3D computational simulation and experimental validation of structured materials: Case studies of tissue papers

“…It would be expected that this sample presented high deformations (Giacomozzi and Joutsimo 2017). However, the oxygen and ozone bleaching stage process promote a more intense degradation of polysaccharides and consequent loss of yield and pulp properties, such as decreased intrinsic viscosity and high fine content (Masrol et al 2017;Morais et al 2021a). The fiber length weight by length (FL) decreased over the PFI revolutions, contrary to the fiber width (FW), coarseness (C), and fines content (FC).…”

Effects of Beating on the Characteristics of Malaysian Durian (Durio Zibethinus Murr.) Rind Chemi-Mechanical (Cmp) Pulp and Paper

“…Nevertheless, to the best of author's knowledge, there is a lack of research works and published articles on the utilization of durian rind as an alternatives pulp and paper material. In order to overcome this condition, chemi-mechanical pulping (CMP) of durian rind study has been explored in our previous study [26,27]. The findings of the study indicated that durian rind has bright potentials to be applied as a newly explored raw material for pulp and paper industry.…”