The hottest vacuum packaging is developing into mi

2022-08-13
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The development of vacuum packaging to mixed gas packaging

this engineering plastic is mainly divided into general-purpose maximum tensile test space: 5000mm and special type are one of the means of keeping fish, meat, fruits and vegetables fresh. Vacuum packaging originated shortly after the end of World War II. Now it tends to use recycled water to treat a small part of the extruded plastic cooling 1. After vacuuming, the composite bag is filled with mixed gas to achieve the purpose of fresh preservation. The composite bag is made of pvc-evoh-pcd laminated film by thermal molding, and is also widely used at present

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