水泥包装的传统方法是用纸袋,制造水泥包装袋需用优质木材作原料。目前;我国水泥包装纸供应短缺,水泥包装袋破损大,造成了不少损失。有些地县小水泥厂的包装纸难以解决,只好将纸袋由四层(三层新纸搭配一层旧纸或再生纸)降为三层,致使水泥包装质量更为低劣,破包损失严重。据统计,每年经铁路运输,因纸袋破损而造成的水 The traditional method of cement packaging is to use paper bags, cement bags need to use high-quality wood as raw material. At present, China’s shortage of cement wrapping paper, cement bags damaged, resulting in a lot of losses. In some counties, small cement factories’ wrapping paper can not be solved. Instead, the paper bag is reduced from four layers (three layers of new paper with a layer of old paper or recycled paper) to three layers, resulting in a worse quality of cement packaging and a serious loss of breaking. According to statistics, each year by rail transport, due to the damaged bag caused by water