Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Agglomeration of Toner Particles with Fatty Alcohol and Their Removal by Screening

고급알코올을 이용한 토너의 응집 및 스크리닝을 통한 제거 효과

  • 허용성 (서울대학교 농업생명과학대학 임산공학과) ;
  • 이학래 (서울대학교 농업생명과학대학 임산공학과)
  • Published : 2004.06.01
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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.

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References

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