Processo de fabricação de produtos de papel sanitário de jornais processo de fabricação de papel sanitário de jornais produto de papel sanitário processo de fabricação de papéis sanitários de suprimento da fabricação de papel processo para modificação de fibras celulósicas fibra celulósica para fabricaç de produtos de papel sanitário papel e fibra modificada

摘要

A sanitary paper product made from newspapers containing coarse cellulosic fibers and printed with ink that contains oil and a method for making the same is provided. The method has the step of (a) pulping the newspapers in water with agitation to produce a pulp slurry at a consistency between 3% and 12% and a pH below about 8.0; (b) adding to the slurry an enzyme selected from the group consisting of cellulase, hemicellulase, and lipase and maintaining the pulp slurry at a temperature above about 100 DEG F. for at least 15 minutes; (c) maintaining at least about 2% of the of oil in contact with the newspaper fibers beginning with the making of the pulp slurry in step (a) through step (b); and using the enzyme treated pulp as a major source of fiber in the paper making process to produce a sanitary paper products.