因环境保护的要求，在新闻纸的生产中废纸配用量增高；印刷业走向高速化和新闻纸胶版彩色印刷增加；新闻纸又进一步轻量化，大型纸厂又由４３g／m２朝向４０g／m２迈进。为应对这种迅猛发展的形势，新闻纸机和生产工艺都发生了很大变化。以往在抄造新闻纸时不使用化学药品，但 Due to environmental protection requirements, the use of waste paper increased in the production of newsprint; the printing industry accelerated and the color printing of newsprint offset increased; the newsprint was further reduced in weight; and the large paper mills moved from 43g / m2 toward 40g / m2. In response to this rapidly evolving situation, newsprint machines and production processes have undergone major changes. In the past, we did not use chemicals when making newsprint