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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Effects of Agglomeration of Toner Particles with Fatty Alcohol on Flotation Deinking Efficiency

고급알코올에 의한 토너의 응집처리가 부유부상 탈묵효과에 미치는 영향

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

Toner particles used in laser and xerographic printing process is fused on paper surface so strongly that they tend not to detach easily from the recylced paper surface during pulping. Furthermore, the removal efficiency of detached toner particles by conventional screening and flotation process has limitation due to the platy shape and large size of detached toner particles. It has been shown that the removal efficiency of toners in the screening process can be increased by agglomerating the toner particles with fatty alcohol. It is not possible, however, to remove small and platy toner particles by screening process. These small and platy toner particles should be removed by flotation process. In this study the effect of fatty alcohol that used for toner agglomeration on flotation efficiency has been examined. It was shown that flotation efficiency decreased when fatty alcohol was used most probably due to its effect of reducing hydrophobicity of toner particles.

Keywords

References

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