Taguchi LAHB Sag (IMAGE) Kobe University Caption Industrial manufacturing requires a high degree of melt tension, which can be demonstrated by how little a material sags when being warmed up. LAHB-added polylactic acid (left) sags much less than pure polylactic acid (right), proving that it is a better processable material. Credit KOH Sangho Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.