1. Co extruded nylon barrier membranes can be divided into two categories: symmetric and asymmetric structures. They have good barrier properties, high transparency, cooking resistance, and good heat sealing performance. Compared to dry composite materials, they have low cost, odorless, and good chemical stability. Mainly used for packaging with high demand for vacuum extraction, steaming, freezing, and puncture resistance.

2. Co extruded EVOH barrier film has high barrier properties, high transparency, low temperature resistance, good heat sealing performance, mechanical properties, and chemical stability. Mainly used for packaging products with high requirements for oxygen permeability and shelf life.

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