PVC收缩膜外加成分以增强其耐热性，韧性，延展性等。这种表面膜的最上层是漆，中间的主要成分是聚氯乙烯，最下层是背涂粘合剂。它是当今世界上深受喜爱、颇为流行并且也被广泛应用的一种合成材料。在可以生产三维表面膜的材料中，PVC是最适合的材料。 PVC shrinkable film plus components to enhance its heat resistance, toughness, ductility and so on. The top layer of the surface film is the paint, the main component of which is polyvinyl chloride, and the lowest layer is the back glue. It is one of the most popular, popular and widely used synthetic materials in the world today. PVC is the most suitable material for making three-dimensional surface membranes. 由于PVC独特的性能(防雨，耐火，抗静电，易成型)和PVC低投入高产量的特点，被广泛地应用于建材行业和包装行业，因此，PVC薄膜具有透明度高、光泽度好、收缩率高等特点。 Because the performance of PVC unique (waterproof, fireproof, anti-static, easy molding) and the characteristics of PVC low investment and high yield, is widely used in building material industry and packaging industry, therefore, PVC film has high transparency, good gloss, high shrinkage rate, etc.