DEINKING AGENT FOR RECYCLING WASTE PAPER

摘要

PURPOSE:To obtain the subject deinking agent capable of providing recycled pulp with a high whiteness and a low content of residual ink by mixing an alkanolamine salt of a higher fatty acid with a specific reaction product at a specified ratio. CONSTITUTION:The objective deinking agent is obtained by mixing (A) an alkanolamine salt (e.g. monoethanolamine salt) of an 8-22C higher fatty acid (e.g. lauric acid, palmitic acid) with (B) a reaction product prepared by subjecting a mixture of natural fats and oils (e.g. coconut oil) with an amine compound (e.g. ammonia) having >=2 active hydrogens to addition reaction with an alkylene oxide (e.g. ethylene oxide) at (60/40)-(5/95), preferably (50/50)-(10/90) weight ratio of the components [(A)/(B)].