Collapsible core technology is a method for removing internal undercuts in parts, and is used primarily in caps and closures, plumbing components, and the medical industry. There are two types of ...

Itasca, Ill. — Plastic closure makers are more familiar with strip-thread and unscrewing molds, but they should consider molds that have collapsible cores, Carlos Saboga said at the Plastics Caps & ...

A case can now be made, both on financial return and technical advantages, for retiring an existing unscrewing mold in favor of one with a collapsible core. Unscrewing molds are usually built for many ...