Abstract
It explains the general use of beater additive cationic urea formaldehyde resins, and gives a few remarks on the finishing.
Farthermore, it explains the increase in strength of finished paper caused by the quantities added, pH, and drying temperature; BECKAAHNE P-84135-cationized urea formaldehyde resin-is used. And also, it explains the effect of picking, expansion and contraction in wet time, and the using joinly rosin site, etc.
Next, it explains surface finishing by urea-formaldehyde resins, use of urea-resin for increase in water resistance as paper adhesives, and gives a brief explanation of finishing of phenol formaldehyde resin.
