Effect of Ground Calcium Carbonate Modified by Washless Multilayering of Polyelectrolytes on Paper Quality

Jegon Lee; Wanhee Im; Kyujeong Sim; Hak Lae Lee; Hye Jung Youn

doi:10.7584/ktappi.2015.47.4.115

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Effect of Ground Calcium Carbonate Modified by Washless Multilayering of Polyelectrolytes on Paper Quality 무세척 고분자전해질 다층흡착 처리된 중질탄산칼슘이 종이의 품질에 미치는 영향

30 August 2015. pp. 115-126

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Abstract

In this study, we investigated influence of ground calcium carbonate (GCC) modified by washless multilayering of polyelectrolytes on paper quality. Three layers of polyelectrolytes (cationic starch/anionic polyacrylamide/cationic starch) were formed on the surface of GCC using laboratory inline washless polyelectrolytes multilayering system, which was called inline LbL GCC. Base papers were prepared with untreated GCC or inline LbL GCC using a laboratory handsheet former. These handsheets were coated with rod coater, and then printed by black ink. Properties of base paper and fold crack of coated paper were evaluated. Base paper with inline LbL GCC showed much higher mechanical strength in terms of tensile index, strain, internal bond strength, and folding endurance. The fold crack of coated paper with inline LbL GCC occurred more frequently compared to coated paper with untreated GCC. This might be due to highly improved internal bond strength of base paper, which resulted in smaller delamination that played a role of stress dissipation. It would be recommended to design a proper coating layer in order to prevent fold crack.

Keywords

Filler

high loading

polyelectrolyte

multilayer

paper strength

fold crack

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 :4
Pages :115-126
Received Date : 2015-08-10
Revised Date : 2015-08-18
Accepted Date : 2015-08-20
DOI :https://doi.org/10.7584/ktappi.2015.47.4.115

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

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Literature Cited