germany&rsquos grafe group blankenhain www.grafe.com says its new &ldquobiocolen&rdquo masterbatch for pla allows improved performance of plabased packaging and provides new application options for manufacturers of consumer goods. the batch improves the temperature stability of pla packaging that has to be stored cool and then reheated &ndash an essential attribute for microwave meal packaging, for example.grafe says the masterbatch improves the durability of the material, achieving a higher flexibility and reducing the brittleness in the end product without impairing transparency. the packaging product is also very easy to process and cut, it adds. 
