Application of the Novel Test Machine,  Retention and Drainage Analyzer (RDA),  for Wet-end Analysis of Papermaking Process (II) : Vibratory RDA and Selection of CaCO3 Filler by Simultaneous Considering of Multiple Assessment Factors

Tai Ju Lee; Kwang Seob Lee; Jae Hoon Lee; Jeong Yong Ryu

doi:10.7584/JKTAPPI.2017.06.49.3.102

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Application of the Novel Test Machine, Retention and Drainage Analyzer (RDA), for Wet-end Analysis of Papermaking Process (II) : Vibratory RDA and Selection of CaCO₃ Filler by Simultaneous Considering of Multiple Assessment Factors 제지공정 Wet-End 분석을 위한 새로운 감압 탈수 초지 설비(RDA)의 활용 (제2보) : 진동 탈수를 적용한 RDA와 복수의 평가인자를 고려한 탄산칼슘 충전제 선별

30 June 2017. pp. 102-108

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Abstract

Wet-end where the fibrous components and functional additives are applied is an essential part for determination of properties of the final product and runnability of papermaking process. However, it is difficult to anticipate physical and chemical phenomena in wet-end using some instruments for lab-scale papermaking test. In addition the performance of retention aids and fillers have to be evaluated by overall analysis of retention, drainage, and paper uniformity. With regard to renovate retention and drainage analyzer (RDA), a new analysis of retention, drainage, and paper uniformity using the RDA had been studied. In this study the RDA was modified by equipping air piston vibrator which could delay the consolidation of wet web and reduce the retention of fines. Effects of the varied kinds of fillers on wet-end of fine paper were analyzed by summation of drainage, turbidity (retention), and paper uniformity using the modified RDA. As a consequence, the selection of proper filler for the optimization of wet-end of paper making process for fine paper was made by using the modified RDA.

Keywords

RDA (retention and drainage analyzer)

retention

drainage

paper uniformity

wet-end

fillers

fine 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 : 49
No :3
Pages :102-108
Received Date : 2017-06-11
Revised Date : 2017-06-21
Accepted Date : 2017-06-23
DOI :https://doi.org/10.7584/JKTAPPI.2017.06.49.3.102

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

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