Case Study: The Logical Discoveries by Trasy Enterprises Problem In 1999, PVC shrink labels were the most popular choice for packaging, especially for mineral water bottles in India. However, when these labels were used on conical containers like yoghurt cups, curd tubs, or noodle bowls, they faced a critical issue — the labels would slide down because they couldn’t grip the sloped surface firmly. Challenge The need was clear: the label had to stay in position during the shrinking process. An idea emerged — applying a thin line of hot melt adhesive on the inner side of the label. When exposed to heat inside the shrinking chamber, the adhesive would bond the label to the container. But applying this adhesive line was no simple task. Early attempts using a crayon-like pencil to draw the line on the PVC film led to frictional heat, which caused the delicate film to tear within a few meters of operation. Solution Trasy Enterprises innovated a rotating hot melt adhesive disc system. • Instead of a fixed pencil tip, a rotating adhesive disc ensured that the point of contact kept changing. • This eliminated heat build-up, avoided film damage, and allowed smooth, continuous adhesive application. • The result: shrink labels could now hold firmly even on conical containers. Impact This simple yet ingenious solution solved a long-standing industry problem. Since its invention in 1999, the rotating adhesive disc system has been successfully used in packaging lines across India and remains a trusted innovation for conical container labelling.