The lignin, cellulose and hemicelluloses in wood are polymers that behave similarly to the artificial polymers and are bonded together in wood. Lignin differs from the other two substances by its highly branched, amorphous, three-dimensional structure. Under appropriate conditions, the moist lignin incorporated in the wood softens at about 100 °C and allows the molecules of it to deform in the cell walls. There are many advantages and disadvantages to this phenomenon. If we know this process accurately and the industrial areas where it matters, we may be able to improve these industrial processes. This article provides a brief theoretical summary of lignin softening and the woodworking processes where it plays a role: wood welding, pellet manufacturing, manufacturing binderless boards, solid wood bending, veneer manufacturing, and solid wood surface densification.

木材中的木质素，纤维素和半纤维素是与人造聚合物具有相似行为并在木材中结合在一起的聚合物。木质素与其他两种物质的不同之处在于其高度分支的无定形三维结构。在适当的条件下，木材中混入的潮湿木质素会在约100°C的温度下软化，并使其分子在细胞壁中变形。这种现象有很多优点和缺点。如果我们准确地知道此过程以及它所涉及的工业领域，则我们可能能够改进这些工业过程。本文简要介绍了木质素软化及其发挥作用的木工工艺的理论摘要：木材焊接，颗粒制造，无粘结剂板的制造，实木弯曲，饰面板的制造，