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http://dx.doi.org/10.7584/ktappi.2014.46.1.029

Improvements of Strength and Retention of Cotton Handsheet by Additives(II) -The durability test of cotton handsheet with additives  

Cho, Yu-Je (Korea Minting Security Printing & ID Card Operating Corp.)
Kim, Kang-Jae (Dept. of Wood Science and Technology, College of Agriculture and Life Science, Kyungpook National University)
Eom, Tae-Jin (Dept. of Wood Science and Technology, College of Agriculture and Life Science, Kyungpook National University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.46, no.1, 2014 , pp. 29-38 More about this Journal
Abstract
Guar gum is added to the pulp suspension at the suction side of the fan pump just before the sheet is formed on either a fourdrinier or cylinder machine. Guar gum replaced and supplements these hemicelluloses in paper bonding with many advantages, which include improved sheet formation with a more random distribution of pulp fibers. But, guar gum has serious storage problem. This material has easily decayed after High-temperature conditions such as summer. In this study, various properties of cotton handsheet were measured to solve the problem of deformation while storing guar gum and to improve the durability. After aging, which is one of the durability tests, cotton handsheet with 0.2% and 0.3% of A-PAM showed improved mechanical properties and bursting index and folding endurance of cotton handsheet with 0.3% of A-PAM were similar to those with guar gum. The yellowness loss of cotton handsheet with synthetic polymers was lower than those with guar gum.
Keywords
cotton handsheet; banknote; durability; anionic PAM; guar gum;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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