Barrier cup and preparation method thereof

Abstract

The barrier cup sequentially comprises a polypropylene layer and / or a polystyrene layer, a bonding layer, a barrier layer, a bonding layer, a polypropylene layer and / or a polystyrene layer and a sealing auxiliary layer in the thickness direction of the cup wall. The blocking layer is made of a material with the following structural formula, m and n are integers larger than 1, and the sealing auxiliary layer is located on the inner wall of the blocking cup and used for assisting the blocking cup in sealing or packaging. According to the barrier cup, on the basis of a simple film layer structure design, low light transmittance and oxygen permeability can be achieved at the same time, the preparation method is simple, and cost is low.

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