METHOD OF APPLYING POLYMERS FUNCTIONING AS ALDEHYDE TO IMPROVE DRYING IN PAPERMAKING MACHINES Russian patent published in 2009 - IPC D21H21/10 D21H21/14 D21H17/33 D21H17/37 D21H17/45 D21H17/55 

FIELD: textile; paper.

SUBSTANCE: method consists of adding to the paper sheets approximately 0.05 pounds/ton to 15 pounds/ton, in accordance with the dry fibers, one or several polymers, functioning as aldehyde, containing amino or amido group, where, at least, 15 molar percent amino or amido group function with one or several aldehydes and where the functionaling aldehyde polymers have a molecular weight of not less than approximately 100000.

EFFECT: increased activity for drying due to a reduction in the amount of polymer.

14 cl, 5 ex