What materials are stretch films made of?

With the continuous progress of society, in the busy urban life of modern people, more and more people hope for convenience and speed. Stretch film has realized this desire in the packaging industry, making product packaging easier. Stretch film is the most popular packaging material in the modern era, and can be used in many industries, such as food, beverages, candy, stationery, etc.; and stretch film can meet the requirements of moisture-proof, dust-proof and touch-proof products. It has functions such as stealth replacement and transparent display, so it can also replace all kinds of cartons; so what materials are they made of?

The MPE used to make the stretched film is a high stereoregular polymer, and the stretched film is a high stereoregular polymer with a narrow molecular weight distribution, which can accurately control the physical properties of the polymer, so the performance is further improved; due to the narrow molecular weight distribution of MPE , The processing range is also narrow, and the processing conditions are difficult to control. Usually, 5% LDPE is added to reduce the melt viscosity and increase the flatness of the film. The stretch film produced is of high-quality raw materials, non-toxic and tasteless, packaging goods, waterproof and moisture-proof, etc.

But the price of MPE is also very high, so in order to reduce the cost, MPE is usually mixed with C4-LLDPE; but not all C4-LLDPE can be matched with MPE, there should be a choice. Machine-stretching film is mostly made of C6 and C8 materials, which are easy to process and sufficient to meet various packaging requirements. Due to the lower stretching ratio of manual packaging, C4 materials are mostly used.

The stretch film is synthesized according to different densities of polyethylene, and there are three grades: high, medium and low. The material used in the stretch film is one of the most popular heat shrinkable materials in the world. It can be made into cylindrical film, L-shaped half-folded film and single-piece film can also be made into pocket film according to customer needs, which is convenient to use. I also know that the carton packaging in the past was opaque, and the goods were sent by mistake when they couldn’t see the contents when they were shipped. Now they are packaged in transparent stretch film, which is easy to identify the packaged objects, impact the eye line of sight, and reduce delivery errors. In the past, the price of cartons was relatively high, and the interest cost of packaging was also reduced a lot after the use of stretch film. It is no wonder that so many manufacturers have replaced the old packaging.

The material production of stretch wrap film is shared here today. With the needs of different industries, there are more and more types of stretch films. At present, stretch films in the market are mainly divided into PE stretch films and PE stretch films. , LLDPE stretch film, PE slitting stretch film and so on.