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Chang-Keun Kim,Won-Seok Lim,이용규 한국공업화학회 2010 Journal of Industrial and Engineering Chemistry Vol.16 No.5
Papers consist more than 50% of the packaging material. Cartons which have been used for high quality hygiene packaging such as confections and cosmetics aremade from coated paperboard. Carton-making process consists of printing on coated paperboard, creasing and then folding it. A frequently occurred trouble in a carton-making process is cracking along a creasing rule during creasing by high mechanical pressure. In order to reduce cracking and improve fold-ability of coated paperboard, this study elucidated the factors affecting cracking in a coated layer which absorbs most of elongation force applied on the surface layer of coated paperboard. Coated paperboard produced with latex having low Tg and small particle size showed good printability, flexible coated layer and consequently reduced cracking due to its good film formability. When the coated paperboard was folded in machine direction, the foldability was poor because of fiber orientation. 2010 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
안료의 배합비가 더블 도공지의 물성 및 인쇄적성에 미치는 영향
김창근,이용규,Kim, Chang-Keun,Lee, Yong-Kyu 강원대학교 산림과학연구소 2001 Journal of Forest Science Vol.18 No.-
The main objective of this study was to investigate effects of pigment mixed with different ratio on the double coated paper. Mineral pigments such as clay and ground calcium carbonate(GCC) as well as hollow sphere plastic pigment were used to evaluate the physical, optical properties and printabilities of double coated paper. The physical properties such as gloss and smoothness, and the printability(ink gloss) of double coated paper were measured to evaluate the effects of the bottom layer on improving the properties of top layer. The data indicated that the usage of hollow sphere plastic pigment for the bottom layer coating improved the surface properties of double coated paper, and that ink gloss was significantly influenced by the structure of bottom layer even when hollow sphere plastic pigment was used for the bottom layer coating.