The sterilization process pushed open the plastic part of flip off caps

The sterilization process pushes open the plastic portion of flip-off cap during sterilization, is a common challenge in aseptic processing. Here are some considerations and potential solutions:

Causes:

1. Excessive Pressure Build-Up: During sterilization, gases like ethylene oxide or steam create internal pressure. If the seal isn't designed to accommodate this, the plastic portion can lift.
2. Improper Venting: If the caps are not properly vented, the pressure difference inside and outside the vial can cause the plastic cover to detach.
3. Weak Bond Between Plastic and Aluminum: If the plastic part isn't securely attached to the aluminum, it might dislodge under pressure.
4. Sterilization Parameters: Excessively high temperature or pressure during sterilization might exceed the cap's design tolerances.

Solutions:

1. Use Sterilization-Compatible Caps:
2. Optimize Sterilization Cycle:
3. Inspect Seal Design:
4. Secondary Packaging:
5. Test Alternate Materials:
6. Collaborate with Manufacturers:

Would you like help with technical specifications for sterilization-compatible caps or contact recommendations for manufacturers?

Ada Song 

hope@jytejie.com 

+86-18210278669 +86-18614082878

Jiangyin Tejie Rubber & Plastic Co.,Ltd

M:+86-18210278669

Add: No.89 Jinshi Road, Chengjiang Street, Jiangyin City, 214429 Jiangsu, China.