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High-strength seals prevent flexible package bursts at high altitudes

Toray Plastics’s Over-the-Mountain portfolio of BOPP films prevents package failures during transport of foods in high-altitude, low-atmospheric-pressure conditions.

Toray Plastics’s Over-the-Mountain portfolio of BOPP films prevents package failures during transport of foods in high-altitude, low-atmospheric-pressure conditions.
Toray Plastics’s Over-the-Mountain portfolio of BOPP films prevents package failures during transport of foods in high-altitude, low-atmospheric-pressure conditions.

Toray Plastics (America) Inc. introduces the Torayfan-Over-the-Mountain (OTM) portfolio of biaxially oriented polypropylene (BOPP) films. These new films are designed to prevent packages from bursting when transported in high-altitude and low-atmospheric-pressure conditions.

In high altitudes, the air pressure outside the package decreases, causing it to inflate. That inflation places additional stress on the seals and may damage them or cause them to burst. Toray manufactures the new Over-the-Mountain films using its proprietary, modified polypropylene core layer and a proprietary sealant, which work synergistically to provide superior seal performance.

Seal strength and hermetic seals help to maintain the integrity of the package and protect the oxygen and moisture barrier that allow food to stay fresh. Studies have shown that these OTM films can survive altitudes of about 17,000 feet before exhibiting a leak and about 38,000 feet before rupturing completely.

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