还我本色——造纸环保新主张

Return to the original colour-A new viewpoint of environment protection in paper industry

纸是现代人类生活中不可或缺的重要物资。从汉代中国先人发明＂纸＂用来记录信息至今,纸的种类也逐渐衍生至印刷用纸、办公用纸、包装用纸、卫生用纸、工业用纸、特种纸等数十个大类、几百个品种，工业文明也将纸的生产从古代的手工作坊带入投资巨大、

For a sense of technology,the bleaching of pulp is to get rid of colour form unbleached pulp.Whether or not the more white,the better for paper products？ How much we pay out for a piece of white paper？ Is it necessary for bleached to much higher whiteness？ We should think and cope with all these questions.