Packaging bag paper and production method thereof

The invention discloses packaging bag paper and a production method thereof.The production method comprises the steps that coastal coniferous wood chips serve as main raw materials, and fine fibers larger than 100 meshes and other parenchyma cells are removed through a classified screening technology after pulping is conducted; the problems of insufficient fiber fibrillation caused by virtual high slurry freeness and low tensile energy absorption and air permeability of finished paper are solved; high-concentration pulping and low-concentration pulping are combined, auxiliary materials are added, the packaging bag paper is produced under the combined action, the tensile strength and folding resistance of the paper are improved, the wet strength and tensile resistance of the paper are improved, the retention of pulp is improved, and therefore the high-strength and high-air-permeability packaging bag paper is produced. 本申请公开了一种包装袋纸及其生产方法，生产方法以沿海针叶木片作为主要原料，制浆后经分级筛选工艺技术去除大于100目的细小纤维和其他杂细胞，解决浆料游离度虚高造成的纤维分丝帚化不充分、成纸