Pulping process of waste paper deinking pulp for furnishing high-grade printing paper
作者： Cao Xu , Ke Jixiong
DOI:
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摘要: The invention relates to the technical field of pulping and papermaking, particularly a process waste paper deinking pulp for furnishing high-grade printing paper. comprises following procedures of: repulping, high-concentration desanding, coarse screening, middle-concentration fine floatation, concentration, heat dispersion, decoloration, backwater gooey treatment, wherein repulping procedure steps placing water into hydrapulper; adding 0.1%-1.8% by weight agents, 0.1%-0.8% compound biological enzymes 0.1%-2.0% surface active agents relative bone dry controlling concentration at 10-20%, temperature 50-60 DEG C time 10-30 minutes, keeping 0-20 minutes obtain broken pulp. prepared through disclosed has advantages high whiteness, removal ratio, dust ratio ERIC (Entire Combined Ink Content) meets requirement
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