Patent ID: 6576085
Filing Date: 2003-06-10
Classification: D21H,Y10T

Abstract:
A process for producing a bulky paper for printing, comprising the step ofmaking paper from a pulp feedstock in the presence of a bulking promoter, wherein said bulking promoter is added to the pulp feedstock and evenly blended with the pulp feedstock in a papermaking process step, and said bulking promoter comprising at least one compound selected from the group consisting of, an amine compound, AND an acid salt of an amine compound, wherein the amine compound and an acid salt of an amine compound are compounds represented by the following formulae (a2) to (f2): â€ƒwherein R21 is an alkyl, alkenyl or &bgr;-hydroxylakyl group having 8 to 36 carbon atoms; R22 and R23 are the same as or different from each other, and a hydrogen atom, an alkyl group having 1 to 24 carbon atoms or an alkenyl group having 2 to 24 carbon atoms; R24 and R25 are the same as or different from each other, and a hydrogen atom or an alkyl group having 1 to 3 carbon atoms; HB represents an inorganic acid or an organic acid; AO is an oxyalkylene unit having 2 or 3 carbon atoms; l21 and M21 are 0 or a positive integer, and the sum in total of l21 and M21 is in an integer ranging from 1 to 300; and N21 is a number of 1 to 4.