用枫树高得率化机浆生产高档涂布纸板

在亚洲和欧洲，许多纸板是用多层纸板机抄造的。与单层成形相比，纸板多层成形具有灵活选择纤维原料的优势。多层纸板生产中，面层主要由漂白化学浆构成，而中间层和底层则可选用价格相对低廉的GW、TMP、高得率化机浆和二次纤维或多种不同种类纤维的混合。在上述纤维中，枫树高得率化机浆以其极高的松厚度独具优势。文章讨论了枫树高得率化机浆的特性及其在纸板生产中的应用。

Use of Maple High Yield Pulp (HYP)in High Quality Coated Paperboards

In Asia and Europe, many paperboards are made from the multi-ply paperboard machine. Multi-ply board formation permits different types of fibers to be used in each individual ply, which has clear advantages over one ply paperboard in the flexibility of fiber choice. In the multi-ply paperboard production, the top ply is typically made of bleached chemical pulps. In the middle or back ply, however, less expensive fibers such as GW, TMP, HYP(BCTMP)and recycled fibers or mixtures of different fibers are used. Among them, maple HYP stands out due to its superior bulk. The use of maple HYP and its benefits in paperboard production are discussed.