Making paper from aldehyde modified cellulose pulp with an oxidant, a nitroxyl radical and aldehyde functional polymers selected additives

摘要

A method of making paper having wet strength, temporary wet strength, dry strength and high wet strength/dry strength ratio properties uses an aldehyde modified cellulose pulp as the pulp stock which is prepared by oxidizing cellulose or cellulose pulp in an aqueous system with an oxidant having an equivalent oxidizing power of up to 5.0g of active chlorine per 100g of cellulose and a mediating effective amount of nitroxyl radical and adding an effective amount of at least one additive polymer which is an aldehyde functional polymer or a polymer containing functional groups capable of reacting with aldehyde groups.