FIBER BOARD AND METHOD FOR PRODUCING SAME

Provided are: a homogeneous fiber board which has small variation in weight per square meter; and a method of the same. The present fiber board (100) is obtained by: mixing a vegetable fiber (1) (such as kenaf fiber) and a thermoplastic resin fiber (such as polypropylene fiber) to form a web; forming a fiber mat by needle punch method or the like to interlace the fibers that constitute the web; and heating and compressing the fiber mat. The vegetable fiber is crimped in advance by stirring a raw material fiber in presence of water. The present production method has: a web-forming process wherein a web is formed by mixing a vegetable fiber and a thermoplastic resin fiber; a mat-forming process wherein a fiber mat is formed by interlacing the fibers that constitute the web; and a board-forming process wherein a fiber board is formed by compressing the fiber mat with heating.

本发明提供一种单位面积重量偏差极小的均质纤维板（homogeneous fiber board）及其制备方法。
本发明所述纤维板（100）通过以下流程制得：将植物纤维(1)（vegetable fiber，如洋麻纤维（kenaf fiber））与热塑性树脂纤维（thermoplastic resin fiber，如聚丙烯纤维（polypropylene fiber））混合以形成纤网（web）；采用针刺法（needle punch method）等方式对构成纤网的纤维进行交织处理，得到纤维毡（fiber mat）；随后对该纤维毡进行加热加压成型。
所述植物纤维预先通过在水环境中搅拌原料纤维，得到预卷曲结构。
本发明所述制备方法包含以下工序：纤网成型工序，即通过混合植物纤维与热塑性树脂纤维制得纤网；毡体成型工序，即通过交织构成纤网的纤维得到纤维毡；以及板材成型工序，即通过对纤维毡进行加热加压制得纤维板。