过滤纸袋专用纸板是由两层以上的硬纸板用白胶粘合而成,在制作过程中必须及时除去其胶中的水分,才能得到坚硬挺括的半成品。多数大纸板是用两种不同质地的硬纸板复合的,在过滤过程中往往由于两面收缩率的不同而导致复合后的大纸板卷曲,甚至报废。传统的干燥方法是用烘房或在太 Paperboard filter paperboard is made of more than two layers of cardboard bonded with white glue, in the production process must be promptly removed the glue in the water, in order to get hard and stiff semi-finished products. Most large cardboard is two different texture of the cardboard composite, often in the filtration process due to the different shrinkage rate on both sides of the complex after the big cardboard curl, or even scrapped. The traditional method of drying is drying room or too