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Effect of White Water Quality on AKD Sizing of Linerboard  

Lee, Hak-Lae (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University)
Seo, Man-Seok (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University)
Shin, Jong-Ho (Taekwang Chemical Co.)
Youn, Hye-Jung (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.38, no.2, 2006 , pp. 9-15 More about this Journal
Abstract
Neutral sizing is required for linerboard to solve the troubles in strength and process caused by recycled raw materials. AKD sizing efficiency can be influenced by process condition like white water quality, fines retention and so on. Therefore, this study was aimed to evaluate sizing performance of general and fast cure type AKDs using process water obtained from linerboard mill. To evaluate effect of process water quality on AKD sizing, white water was diluted with tap water at the different dilution ratios and UKP slurry was sized using the prepared water. Also, effects of inorganic and organic ion material on sizing were examined. When white water was used for stock forming, UKP sheet showed very low sizing degree. Sizing degree of sheet was increased with increase of dilution ratio because water quality was improved. Especially anionic organic material had a greater influence on AKD sizing than inorganic material. When white water quality was deteriorated, fast cure type AKD showed superior sizing performance to general type AKD.
Keywords
AKD; fast cure; sizing degree; linerboard; process water; anionic organic material; fines;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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