BIB for Frozen and Thawed Products

Specification Table: Freezer-Grade Liners

Common Questions & Answers (FAQ)

• Q: How does the film material prevent cold cracking?
• A: We use specific co-polymers with a very low glass transition temperature (Tg), ensuring the material remains pliable and energy-absorbing even at extreme cold.

• Q: Is there a risk of product damage during thawing?
• A: Minimal. The flexibility of the bag accommodates the volume changes of the product (ice). Slow, controlled thawing is recommended to avoid thermal shock to the product itself.

• Q: Do freezer-grade bags cost more than standard bags?
• A: Yes, slightly. The specialized metallocene resins required to maintain flexibility at low temperatures are generally more expensive than standard PE resins.

Specification Features

• Seal Flexibility: Heat seals are engineered to maintain flexibility and adhesion across a wide temperature range (e.g., -40℃ to +40℃).

• Anti-Splintering: The polymer structure is designed to break safely without creating sharp, hazardous plastic splinters if catastrophic failure does occur.

• Low-Temperature Adhesion: Utilizing specialized printing and label adhesives that remain bonded to the film at sub-zero temperatures for batch traceability.

Production Process and Cooperation Advantages

• Cryogenic Testing: Providing formal drop-test data and puncture-resistance reports at temperatures relevant to the client's cold chain environment.

• Cold-Chain Consulting: Advising clients on best practices for filling and freezing, including leaving appropriate headspace to accommodate product expansion.

• Global Cold Storage Network: Leveraging knowledge of global cold storage and logistics providers who are experienced in handling bulk BIB frozen goods.

• Resin Certification: Supplying specific certificates of analysis for the mPE resin to guarantee its performance characteristics at the required extreme cold.