Bubble film is actually very common in our lives, especially in express delivery. The bubble film used in express delivery mainly protects the product, which can make the product logistics process safer. Bubble film is also known as bubble pad, the main raw material of production is polyethylene, with the use of additives such as whitening agent, opening agent, through high temperature extrusion, molding into bubbles, with light texture, good transparency and other characteristics, is a new type of packaging materials.There are many applications of bubble film, which can be used in electronic products, instruments, ceramic products, household appliances, kitchen supplies, furniture decoration, glass products and other industries, and can also be processed into bubble bags, kraft paper envelope bags and other products!
Gram weight
Thickness refers to the thickness of the film, so it is generally expressed by how many grams per square meter. The greater the weight, the stronger the pressure resistance, the harder the feel.
Bubble film layers
1、Single layer bubble
There's a layer of bubbles on top of a film.
2、Double layer bubble
A layer of air bubbles are sandwiched between the two layers.
Bubble Diameter
Those with a diameter of 6 mm or less are called small bubble film, those with a diameter of about 10 mm are called medium bubble film, and those with a diameter of 20 mm or more are called large bubble film. The common bubble is 10 mm in diameter and has a wide range of compression resistance. The 6mm is characterized by a beautiful appearance and neat bubbles. Suitable for phones and other products with outer packaging, it is mainly wear-resistant and shock absorption. The bubble diameter of 20-28 mm is a large bubble, characterized by a high bubble height, the thickness of the general film will be thicker, and the buffering effect is better.
Function
Antistatic air cushion film, flame retardant air cushion film, aluminized air bubble film, color printing air cushion film, composite pearl cotton air cushion film and so on. For example, anti-static air cushion film can be used to package electronic components. Aluminized film bubble film can be used to make dust shield, tray cover.
Raw materials
There are full return bubble film, half return bubble film and new material bubble film. From the finished product, the whole roll of the new bubble film is white, the single piece has high transparency, no visible impurities, no pungent smell, comfortable feel; There are many types of recycled materials, and there is a big gap between waste plastic pipes and waste plastic wrap.
All in all, the darker the color, the more opaque, the more impurities, and the more pungent the smell. The transparency of a good recycled material is also very high, which can be distinguished by checking whether there are crystal points on the film, and the recycled material is unevenly melted, which is easy to produce crystal spots.