What is the development trend of the plastic packaging industry?

Public date： 2019-6-11 14:53:02

The development direction of plastics can be summarized into two aspects. First, to improve the performance, that is, to modify the existing varieties by various methods, so as to improve their comprehensive performance; Second, the development function, that is, the development of polymer materials with optical, electrical, magnetic and other physical functions, so that plastics can have photoelectric effect, thermoelectric effect, piezoelectric effect and so on.
From the current world plastic industry growth rate, Germany and Sweden in the first place, Japan and some European countries followed, the United States is slow. At present, foreign plastic packaging belt presents the following development trend:
1, multifunctional composite film: a large number of foreign development of multifunctional composite film to further refine its role. For example: cold resistant film can withstand -18℃, -20℃, -35℃ low temperature environment; PP moisture-proof film made of moisture-proof treatment, the series of products can be divided into moisture-proof, anti-condensation, anti-steam cooling, adjustable moisture and other types; Anticorrosive film can pack perishable, acidic, sweet food; Stable friction film stacking; Special PE film chemical resistance, corrosion resistance; No odor and insect repellent is added in the mothproof film. Bidirectional tensile nylon 66 heat resistant film to replace bidirectional tensile nylon 6 packaging food, its high temperature resistance up to 140℃; The new special food packaging film can improve the flavor protection of food packaging; Non-crystalline nylon film transparency similar to glass; High shielding film can preserve color, aroma, taste, nutrition index and taste quality stability; The metal protective film adopts LDPE modified film to package liquid products, which can be heat-sealed at low temperature. PP paper is used to improve the light, cold, heat, water, moisture, grease, acid, alkali and impact resistance.
2, copolymer composite packaging film: currently, some countries in Europe and America have invested a lot in developing non-polar and polar ethylene copolymers, which will greatly improve the tensile and co-extrusion properties of plastic film, and improve transparency, sealing strength, stress resistance, anti-cracking, and enhance stability, improve molecular weight cloth and extrusion rheological properties.