Continuous Thread Closure Mold Types

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Unscrewing and Stripped are the two mold types used to manufacture Continuous Thread Closures. The differences occur in the molding process: when applied to a bottle finish, both function the same.

“Unscrewing” Closure Features:

  • Closure has lugs around the bottom of the skirt
  • Lugs enable the closure to be held in place while the “unscrewing” motion occurs, releasing the closure from the mold
  • Threads continue to the top inside of the closure
  • Liners are glued into the closure because the threads go to the top inside
  • Mainly used for small size closures

“Stripped” Closure Features:

  • No lugs on this closure – it is popped off or “stripped” from the mold
  • Threads end before the top inside of the closure, creating a well area
  • Liners are friction-fit inside because the well area and the threads hold the liner in place
  • Mainly used for larger size closures

See our full line of Continuous Thread Closures

We manufacture CT Closures in sizes from 28mm to 110mm. Choose from styles with smooth or ribbed sides, and a smooth or matte top.

Our CT Closures work well with our bottles to package a variety of products, from solid dose tablets, capsules, and softgels, to liquids and powders.

For more information, speak with someone immediately at 610-367-5000.

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