Characteristics of Cationic Starches and Esterified Starches for ASA Sizing

ASA 유화용 양성전분과 에스테르화전분의 특성 평가

  • Kim, Jong-Soo ;
  • Lee, Hak-Lae (Department of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University)
  • 김종수 (한국제지주식회사) ;
  • 이학래 (서울대학교 농업생명과학대학 산림과학부 환경재료과학전공 및 농업생명과학연구원)
  • Published : 2008.12.31

Abstract

It is of great importance to decrease sheet break at the size press to enhance the runnability of today's high speed paper machines. To achieve this purpose it is required to control the penetration of the starch solutions at the size press. Use of ASA sizing system provides diverse advantages in improving machine runnability since it allows us to get rapid sizing development at the size press. Domestic paper industries, however, has not enjoyed these benefits of ASA sizing system mainly because of the poor efficiency of domestic corn starches used for ASA emulsification. To improve the emulsion stability and ASA sizing efficiency, it has been pointed out that new cationic starches are needed. In this study two methods of starch modifications, i.e. esterfication of cationic corn starch with OSA (Octenyl Succinic Anhydride), and acid hydrolysis by sulfuric acid were employed as methods to improve ASA sizing efficiency. The effect of these modification was compared with conventional cationic starches.

Keywords

References

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