Amcor White Cap launches 51mm Press-On Twist-Off closure with new features 51mm PT with universal compound

Amcor White Cap is renowned throughout the world for its Press-On Twist-Off® (PT) closures, which offer many outstanding features including excellent sealing characteristics, ease of opening, tamper evident button closure system, excellent print possibilities and full compliance with EU packaging waste and recycling regulations. Now the company has launched a modified 51mm Press-On Twist-Off® tinplate cap with universal compound for glass containers – the 51 PTU. 

Amcor White Cap is renowned throughout the world for its Press-On Twist-Off® (PT) closures, which offer many outstanding features including excellent sealing characteristics, ease of opening, tamper evident button closure system, excellent print possibilities and full compliance with EU packaging waste and recycling regulations. Now the company has launched a modified 51mm Press-On Twist-Off® tinplate cap with universal compound for glass containers – the 51 PTU. The major advantage of the new closure is that by virtue of the universal compound it combines the technical features of two closures that were previously used for two different process conditions, sterilisation and pasteurisation into one single cap, suitable for both processes. Because of the sensitive nature of one of the main market segments for the 51mm Press-On Twist-Off® closure, baby food, Amcor White Cap has conducted extensive tests utilising the compound over an 18 month period and the results have been excellent. Large scale customer trials, designed to assess packaging related key performance criteria, such as seal integrity under different retort, handling and stacking conditions have also been very successful. Opening torques were also assessed over 12 months and the new closure’s performance in both sterilisation and pasteurisation was compatible with the two closures previously used for these process conditions. The customer benefits of the new 51mm universal compound Press-On Twist-Off® (PT) cap are considerable. There is now one closure for all three heat treatment processes – sterilisation, pasteurisation and hot-fill. More efficient storekeeping is possible at the customer’s plant, by virtue of using only one cap, the 51PTU; mixing of closures during production can be avoided. Most importantly, more efficient production is possible because a new single closure obviates the need for cap changeovers. Amcor White Cap is confident that the new closure will exceed customer expectations. Further developments regarding the new 51mm PT closure will be announced in the near future. As this story demonstrates, as market leaders with proven technology: “Whatever the container is made of, Amcor White Cap has the closure.