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2015 Vol.47, Issue 2 Preview Page
Effect of Fatty Acid and Non-ionic Surfactant on the Deinkability of Mixed Recovered Paper

혼합폐지의 탈묵효율에 미치는 지방산과 비이온성 계면활성제의 영향

Jin Ho Seo
,
Do Chim Choi
,
Jeong Yong Ryu†
,
Sung Hyun Chung1
서진호
,
최도침
,
류정용 †
,
정성현 1
Changgang Institute of Paper Science & Technology, Kangwon National University, 1, Gangwondaehak-gil, Chuncheon-si, Gangwon-do
1JEONJU PAPER Corporation, Seoul 100-743
강원대학교 창강제지기술연구소
1전주페이퍼
†jyryu@kangwon.ac.kr
30 April 2015. pp. 34-41
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Abstract

Recovered paper has been widely used as a main raw material of papermaking in Korea. Recycling of recovered paper helps to reduce production cost and preserve an environment. To recycle recovered paper efficiently, de-inking is a key process in recycling mills. De-inking process would be affected by various influencing factors such as the type of de-inking agent, mixed ratio of recovered paper, season, and process conditions.

In this study, fatty acid and nonionic surfactant were used as the de-inking agent in froth-flotation process of mixed recovered paper. De-inking properties of mixed recovered paper were investigated according to the addition level of each chemical. Nonionic surfactant had a small effect on de-inking efficiency of mixed recovered paper due to decreased reject. As the additional level of fatty acid increases, fragmented ink particles increased and then optical properties of recycled paper decreased because fragmented ink particles adsorbed onto the fiber surface.

Keywords
Flotation
De-inking
Fatty acid
Non-ionic surfactant
Mixed recovered paper
References

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Information
  • Publisher :Korea Technical Association of The Pulp and Paper Industry
  • Publisher(Ko) :한국펄프종이공학회
  • Journal Title :Journal of Korea TAPPI
  • Journal Title(Ko) :펄프종이기술
  • Volume : 47
  • No :2
  • Pages :34-41
  • Received Date : 2015-03-30
  • Revised Date : 2015-04-19
  • Accepted Date : 2015-04-21
  • DOI :https://doi.org/10.7584/ktappi.2015.47.2.034
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