Process for producing kraft pulp for paper using nonionic surface active agents to improve pulp yield

摘要

A process for making paper and linerboard, employing certain nonionic surface active agents to increase the yield of kraft pulping. The surface active agents having the structural formula where n is an integer from 8 to 12, and x is a positive integer from 1 to about 100, the surface active agent being present in the cooking liquor in an amount effective to increase the yield of pulp.