Types of Skin Packaging Film Materials
Skin packaging film materials mainly include the following types:
Vacuum Skin Pack Film (VSP Film)
It can wrap food and almost completely isolate the air inside the packaging. After being softened by heating and vacuum tension in the sealing chamber, it can fit the shape of hard trays or composite cardboard. It has low/high barrier options, is highly transparent and flexible, and is compatible with various vacuum skin packaging machines and skin trays/cardboard.
PE Skin Packaging Film
Made by melting PE plastic particles at a suitable temperature by an extruder. After molding and cooling, it has good stretchability and shape-retaining ability. It is often used to package and protect goods and food from the external environment. It has good flexibility and excellent recyclability, and is a popular choice in the industrial and packaging fields.
PET Skin Packaging Film
It has high transparency, and the visual display effect of products after packaging is good. It has good flexibility, can withstand rough handling and low temperatures, and also has good thermoforming stretchability. The transparent skin film can fit tightly on the surface of the product. It is environmentally friendly and non-toxic, does not emit peculiar smell when heated and packaged, and is harmless to human health. In addition, it has good adhesion to ordinary cardboard. No matter the size and shape of the product, it can be packaged, which is convenient and practical, and has a good product protection effect.
PVC Skin Packing Film
It is a film material made of polyvinyl chloride (PVC). PVC plastic film has high flexibility and is easy to bend, suitable for applications such as roller shutters and raincoats. PVC film is relatively durable under ultraviolet radiation and general weather conditions, and is very suitable for outdoor applications such as tents and billboards. PVC is a self-extinguishing material, which means it will extinguish itself after the heat source is removed, which enhances its applicability in applications with higher safety requirements. PVC is also a good electrical insulator, suitable for protecting wires and cables. The surface of PVC film is conducive to printing and coating processes, and is widely used in the advertising and packaging industries.
Polyethylene Skin Packaging Film
It is a commonly used recyclable material, made from ethylene, which is mainly extracted from natural gas or petroleum. Terms such as "plastic sheet", "polyethylene sheet" or "polyethylene film" are usually used as synonyms for polyethylene film. The abbreviation of polyethylene is "PE". There are many different types of polyethylene films, among which the most commonly used are: Low-Density Polyethylene (LDPE), High-Density Polyethylene (HDPE) and Linear Low-Density Polyethylene (LLDPE). PE film is the most widely used product in the packaging industry. In addition to its low price, polyethylene also has many advantages, making it dominant. It has excellent protection, no leakage and excellent heat-sealing performance. It is light in weight, easy to transport, has high impact resistance, and can be produced in different colors, transparency and thickness.
