Integrity Maintained in Extreme Conditions
LPS offers robust liquid containment solutions essential for processes involving rapid or extreme temperature changes, such as pasteurization, freezing, or high-heat sterilization. Our packaging guarantees that the structural integrity of the container remains sound, protecting the liquid from thermal stress damage and preserving its quality during critical processing stages.
Specification Details
| Low Temp Rating | Down to −80∘C (Specific Cryo-Grades) |
| High Temp Rating | Up to 121∘C (Retort/Sterilization Grades) |
| Film Material | Co-Polyester, PP (Polypropylene), or specialized PE co-polymers |
| Testing | Thermal shock testing and Retort process simulation |
| Compatible Liquid Types | Aseptic concentrates, cryo-preserved media, high-pH cleaning solutions, sterilized food products. |
- Q: What material is used for cryogenic packaging?
- A: We utilize highly specialized Ethylene-Vinyl Acetate (EVA) or certain Co-Polyester films that retain flexibility and do not exhibit the glass transition effect (brittleness) common to standard PE films at ultra-low temperatures.
- Q: Can the packaging be retorted (high-heat sterilization)?
- A: Yes, our retort-grade packaging uses Polypropylene (PP) or specific PET laminates that maintain structural integrity and barrier function under steam sterilization conditions (typically 121∘C for 20 minutes).
Structural Focus
- Film Layers: Use of high-temperature polymers like PP on the contact layer.
- Venting: Specialized self-sealing vent patch for steam or gas release during retort cycles.
- Fitment: High-temperature resistant PP or PTFE (Teflon) fitments.
- Casing: Autoclavable plastic or stainless steel outer container.
Material & Process
Materials: Polypropylene (PP) Homo-polymers or Co-polymers and high melt strength PE. Processing involves precise Thermal Sealing with monitored residence time to ensure 100% seal strength, followed by batch retort validation where applicable.