Chevron-Philips Corporation introduced the styrene/butadiene copolymer resin brand RK54SBS, which is characterized by stable low-temperature shrinkage and is particularly suitable for shrink-wrapped labels.
RK54SBS shrinkage rate change is very stable with temperature, and it fits well with various shapes of polyolefin shrink wrap, and it can always maintain a satisfactorily good appearance. The RK54SBS begins to shrink at 60°C, and after shrinking to 95°C, the shrinkage rate reaches more than 75% of the maximum shrinkage rate. The shrink label is not only smooth on the surface, but also very transparent and highly glossy. After suitable surface treatment, RK54SBS film is completely suitable for solvent-based inks for offset or rotogravure printing. In addition, the relative density of this resin is only 1.02 g/cm3, so it can increase production by 20% to 30% compared to other label materials for shrink packaging, that is, it can produce more with the same weight of resin. label.