PAPER MADE FROM ALDEHYDE-MODIFIED CELLULOSE PULP WITH SELECTED ADDITIVE

摘要

PROBLEM TO BE SOLVED: To provide a method for making paper having a wet strength, a temporary wet strength, a dry strength and high wet strength/dry strength ratio properties. SOLUTION: This improving method comprises using an aldehyde-modified cellulose pulp as a pulp material, which is produced by oxidizing a cellulose or a cellulose pulp with an oxidant, and adding an effective amount of at least one kind of an additive thereto. The oxidant has an equivalent oxidizing power of up to about 5.0 a active chlorine per 100 g cellulose and an effective mediating amount of nitroxyl radical, and the additive comprises an aldehyde functional polymer or a polymer containing functionality capable of reacting with the aldehyde group.