摘要
中性施胶技术是国际上六十年代开始应用,至八十年代得到发展的一项新技术。本文主要介绍1986年开始在上海的新华、新风、江南等纸厂和江苏的泰州纸厂进行较长时间批量生产试验的情况。结果表明,在节约用浆量、提高成纸质量和耐久性,解决草浆脆性等方面均获得预期效果,新风纸厂在提高照相原纸的抗碱性、白度和边缘渗透等主要指标方面获得关键性的突破。江南纸厂在以铜版损纸直接回用于铜版原纸中,不仅提高了质量,还获得巨大的经济和社会效益。
Neutral sizing process is a new technology, introduced in the 1960s and developed in 1980s. Western Europe first adopted this technology because of a shortage of wood pulp that must be imported and rich resources of calcium carbonate. The application of neutral sizing exhibited a series of advantages: upgrading sheet quality with anti-acid and anti-alkaline characteristics, increasing loading content, retarding machine erosion and improving runnability. Its application has been extended from special and top quality grade to fine writing and printing paper, and popularized to North America and Japan.There are two main types of reactive neutral size: AKD (alkyl ketene dimers) and ASA(alkenyl succinic anhydride). Hercon, a AKD type neutral size emulsion produced by Hercules Incorporation in USA with good stability and sizing efficiency, is mainly used today.We started our study on neutral sizing process in 1986. For three years, we have conducted experiments and trial runs in Xinhua, Xinfeng and Jiangnan paper mills in Shanghai and Taizhou Paper Mill in Jiangsu province. Except the neutral size that is imported, all the other additives, such as cationic starch, anionic PAM, ground CaCO3 are all locally supplied. We have achieved fairly good results in its following cases: improving the brittleness and retention of straw pulp in Xinhua and Taizhou Paper Mills; improving the brightness, alkaline resistence and edge wicking of photo base paper in Xinfeng Paper Mill and its direct recycling of art paper waste in coating base stock in Jiangnan Paper Mill.
出处
《中国造纸》
CAS
北大核心
1989年第4期55-60,共6页
China Pulp & Paper
