PREPARATION OF MODIFIED FLUFF PULP, FLUFF PULP PRODUCTS AND USE THEREOF

摘要

PURPOSE: Provided are a method of producing modified fluff pulp which comprises treating cellulose pulp with a nitroxide-mediated oxidation method and fluffing the treated cellulose pulp. Further provided are the modified fluff pulp prepared therefrom and absorbent articles comprising the modified fluff pulp. CONSTITUTION: The method of preparing modified fluffed pulp comprises the steps of: (a) treating cellulose pulp with a nitroxide-mediated oxidation method; and (b) fluffing the treated cellulose pulp, wherein the treated cellulose pulp contains from about 1 to about 50 mmole of aldehyde functionality/100 g of cellulose pulp. The nitroxide-mediated oxidation method comprises the step of oxidizing the cellulose pulp in a suitable medium with an oxidant in the presence of a nitroxide radical mediator, wherein the nitroxyl radical mediator is a di-tertiary alkyl nitroxyl radical represented by the formula(I) or (II), wherein A is a chain having two or three atoms; each atom is selected from the group consisting of carbon, nitrogen, and oxygen; and the R1-R6 groups represent the same or different alkyl groups.