Shellac Archives Update – “Fractionation of Lac” by Bhattacharya and Leach

Back in the day the London Shellac Research Bureau produced a lot of literature, sometimes in concert with shellac researchers in or from India.  Such is the case here with their Technical Paper No. 16 from 1938, “Fractionation of Lac” by R. Bhattacharya and G.D. Leach.  I presume them to be researchers or scholars but do not know exactly.

It is worth noting, as the authors do, that as a biological material shellac is not homogenous, and they describe methods of separating out various fractions of the lac, and some very useful implications about the performance of coatings formulated with the differing fractions.