Retort and Frozen Food Polyfilm
Retort and frozen food polyfilm are specialized types of packaging films designed to withstand the unique conditions of retort processing and frozen storage environments. Here's a breakdown of each:
Retort Polyfilm:
- Retort Processing: Retort processing is a method used to sterilize food and extend its shelf life. It involves placing food in a heat-resistant pouch or container and subjecting it to high heat and pressure in a retort machine.
- Film Requirements: Retort polyfilm is engineered to withstand the high temperatures and pressures of the retort process without deforming, delaminating, or compromising the integrity of the packaging. It must provide an effective barrier against moisture, oxygen, and other contaminants to maintain the quality and safety of the packaged food.
- Materials: Retort polyfilms are often made from multilayer structures that incorporate heat-resistant materials such as polyester (PET), nylon, and aluminum foil. These films provide both thermal stability and barrier properties required for retort processing.
Frozen Food Polyfilm:
- Frozen Storage: Frozen food packaging must withstand the low temperatures of frozen storage environments without becoming brittle or losing its barrier properties. It also needs to protect the food from freezer burn and other forms of deterioration.
- Film Requirements: Frozen food polyfilm is designed to provide excellent seal integrity and resistance to cold temperatures. It should maintain its flexibility and seal strength even in freezing conditions. Additionally, it must offer a reliable barrier against moisture vapor transmission to prevent freezer burn and maintain the quality of the frozen product.
- Materials: Frozen food polyfilms are typically made from materials such as polyethylene (PE), polypropylene (PP), or polyethylene terephthalate (PET). These materials offer good flexibility and low-temperature resistance, making them suitable for frozen food packaging.
Overall, both retort and frozen food polyfilms are critical components in ensuring the safety, quality, and shelf life of packaged food products subjected to high-temperature sterilization or frozen storage. They must be carefully selected based on the specific requirements of the packaging application to ensure optimal performance and product protection.
End uses - For packaging of frozen items like peas and Ready to eat foods.
Features:
- Suitable for lamination or surface printing
- Under 4% gauge variation
- Good clarity in Transparent film and required level of opaqueness and shining in White/Milky Film
- Excellent Sealing strength
- 42 Dynes of Corona Treatment for excellent bond strength
- Optimum slipping for easy opening of Pouch
- Suitable for food packing as all raw materials used are 100% Food grade. Food Grade Certificate and Test report available on request.
- Thickness range - 15 microns to 450 microns
- Optimum use of Dowlex and Metallocene Granuels in Polyfilm manufacturing to prevent any leakage and cracking of pouch