Factors influencing deflaking kinetics in repulping to produce molded pulp

다국어 초록 (Multilingual Abstract)

Process variables affecting the deflaking or defibering kinetics of recovered papers in repulping to produce molded pulp were investigated with laboratory low and high consistency pulpers and a pilot high consistency pulper. The defibering kinetics at various repulping conditions were compared in terms of the deflaking rate coefficient, which can be easily obtained by measuring flake contents as a function of slushing time and then by performing a non-linear regression analysis on the data. The two main variables affecting defibering rate are found to be the repulping concentration and the rotational speed of rotor, which have to be chosen as manipulated variables to optimize a repulping process. Increasing repulping concentration and rotor speed generally promotes the defibering of recovered paper.

참고문헌 (Reference)

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5 류정용, "펄프몰드 제조를 위한 미분류 신문폐지의 펄핑 공정 최적화 (제 1보)-실험용 고농도 펄퍼 이용-" 한국펄프·종이공학회 39 (39): 38-44, 2007

6 성용주, "습식 펄프몰드 생산공정의 탈수성 향상을 위한 연구" 한국펄프·종이공학회 36 (36): 52-59, 2004

7 성용주, "습식 펄프몰드 생산공정의 공정개선 및 건조에너지 절감 방안" 한국펄프·종이공학회 36 (36): 83-90, 2004

8 조병묵, "Quantitative Analysis of Heavy Metals in Packaging Papers" 한국펄프·종이공학회 39 (39): 45-51, 2007