著者

若松 英之

出版者

紙パルプ技術協会

雑誌

紙パ技協誌 (ISSN:0022815X)

巻号頁・発行日

vol.56, no.8, pp.1158-1164, 2002-08-01

被引用文献数

4

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Recently, in Japanese paper mills, the papermaking conditions have been getting worse because of higher usage of recycled paper, proceeding mill closure, alkaline paper making or an increase of wire speed.<BR>Under such conditions, retention aids have been required to achieve much higher performance. One of such retention aid systems is the microparticle system using cationic PAM and inorganic substance.<BR>We have developed various types of dispersion polymers, which have characteristics of high molecular weight, high actives and low product viscosity.<BR>Furthermore we have developed a new retention system, HYMO TWINS SYSTEM. characterized by using both cationic dispersion polymer and anionic dispersion polymer. HYMO TWINS SYSTEM achieves higher retention and higher drainage than micro-particle systems.