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Agglomeration of Toner Particles with Fatty Alcohol and Their Removal by Screening  

허용성 (서울대학교 농업생명과학대학 임산공학과)
이학래 (서울대학교 농업생명과학대학 임산공학과)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.36, no.2, 2004 , pp. 24-32 More about this Journal
Abstract
Toner used in xerographic printing process is hydrophobic powder with low surface energy. The toner ink film fused on paper surface can be efficiently detached from a fiber surface during pulping, but it does not fragment again into fine toner particles. Ink agglomerates that result have too large particle size to be deinked by flotation. The purpose of this study is to enhance toner agglomeration using 1-octadecanol for improving the toner removal by screening. The effect of pH, pulping temperature, and 1-octadecanol on toner agglomeration and removal by screening was investigated using image analysis methods. Results showed that the size of toner agglomerates increased substantially when pulping was carried out at high temperature under acidic condition. When toner agglomerates showed spherical shape, the particle removal efficiency of screening was improved.
Keywords
fatty alcohol; glass transition temperature; toner; agglomerating agent; screening;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
연도 인용수 순위
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