This recently developed composite metal and plastic closure with tamper-evident features is suitable for press-on, twist-off applications. The 51PT-Band from Silgan White Cap features a plastic tamper-evident band that breaks from the closure during opening, and a safety button that pops up with an audible click as the vacuum is released. The tamper-evident band, which stays permanently detached upon opening, is an important security feature, particularly for baby food, according to the firm, which makes closures for oxygen-sensitive, vacuum and aseptically packaged food products and still beverages. The company also claims that newly developed compounds in the closure design reduces the migration of packaging materials into food.
