<I>Boswellia serrata</I> Resin Gum a Potential Internal Sizing Agent for Paper

Abstract

Crude, ethanol extracted and acid hydrolysed Boswellia serrata resin gums were tested for their internal sizing capability and compared with the conventional internal sizing agent, pine rosin. It was observed that crude resin gum has poorest sizing capability, Ethanol extracted resin gum and acid hydrolysed resin gum are best among these. From series of Laboratory and pilot plant experiments, it was concluded that 1.50% of acid hydrolysed B. serrata resin gum gives equally sized paper as 100% of pine rosin(Cobb 60, 24.0±1.2).