首页>
外国专利>
A PROCESS FOR RETAINING CALCIUM CARBONATE FILLER IN LIGHTWEIGHT CREPED (TISSUE) PAPER WITHOUT NEGATIVELY AFFECTING THE QUALITY OF THE PAPER
A PROCESS FOR RETAINING CALCIUM CARBONATE FILLER IN LIGHTWEIGHT CREPED (TISSUE) PAPER WITHOUT NEGATIVELY AFFECTING THE QUALITY OF THE PAPER
展开▼
机译:在轻质(组织)纸中保留碳酸钙填料的过程,而不会负面影响纸的质量
展开▼
页面导航
摘要
著录项
相似文献
摘要
The current invention involves a new process for fixing non- cellulosic fillers onto tissue paper between 14 gsm and 50 gsm, either for paper produced from a cellulosic furnish of virgin fibers or for paper produced from a cellulosic furnish of recycled fibers derived from recycled papers. The process consists essentially of introducing in a cellulosic fibrous solution a non-cellulosic filler of calcium carbonate (CaC03) or other, then applying, in sequence, two chemical agents, a micro-particle added before the pressure screen and a polymer in the fibrous solution after the pressure screen. The process did not affect the quality of the paper sheet nor the paper making equipment.
展开▼