| 摘要 |
Unbleached paper pulp made from bamboo fiber has the whiteness of 20% to 40% ISO, the tensile index being larger than or equal to 7.9 N·m/g, the folding strength of 15 times to 200 times, the fracture length of 5 km to 10 km, the ash content being smaller than or equal to 1%, the tearing strength of 200 mN to 650 mN, and the beating degree of 10° SR to 25° SR. The preparation method for the paper pulp comprises raw material breaking, stewing, defibering, defibrination, screening and washing. The raw paper of unbleached daily-use paper made from the paper pulp has the fracture length of 5.95 km to 8.0 km, the transverse folding strength of 98 times to 200 times, the transverse tearing strength of 3.6 mN to 600 mN, the transverse suction range of 50 to 100 mm/100s, the longitudinal wet tensile strength of 27 N/m to 55 N/m, the tensile index of 8.6 N·m/g to 10.8 N·m/g, the whiteness of 23% to 25%, and the brightness of 23% to 31%. The paper pulp has good performance parameters and can replace the conventional wood pulp. |
