The internal and external pressure difference occurs

The other is to pay attention to the accumulation of resources, actively promote or promote the product. . In recent years, the development of most PE stretch film manufacturers is especially true in the market, and the trend of development is still relatively stable.

So why do manufacturers will develop so stable? In fact, in this regard, it is more than one, one is to implement a strict systemist, and strictly control the manufacturers. Anhydrous soaking method, in this way is also commonly used, which is completely charged into the liquid, placed on the filter paper after the seal, if there is an outward leak, then there is a problem of. In the water city pressure method, this kind of vacuum sampling is similar, through vacuum extraction, so that the internal and external pressure difference immersed in water, the inner gas exterior can be initially judged to determine its sealing performance.

By pumping the vacuum, the internal and external pressure difference occurs, and if its product is swollen or the recovery of the shape of the sample after the vacuum, the sealing performance of the sample is determined. With the freedom of their own independent fields, they play their own advantages in their own independent fields, and they compete in each other in the market. Compared with other peers, China Hand Use Stretch Film Manufacturers there are fewer manufacturers to collapse almost in recent years. In addition, there is another important thing to detect quality, this is a level that must pass.

If you have other related questions, please call our PE stretch film manufacturers. So, how can you manage to develop so stable? Next, you will make a simple introduction. manufacturers are very paying attention to quality issues, so that in recent years, the quality testing of stretch film is managed and secret IDE management. Even bankruptcy. Vacuum survey method, this is the method of detection that manufacturers is generally used. Stretch film manufacturers have opened strict testing of stretch film! 

The final use of the scissors to cut the tray mechanism package

How to distinguish between winding films and stretch film? In summary, it is a method of using a wrapping film and a stretch film, and it is desirable to increase the knowledge of the wrapping film and the stretch film. So our single, double-layer casting does not have three layers of latency in the data selection, and the formula interest is also high, so it is still ideal in three-layer coextrusion.

What we need to know is that the single-layer casting cannot be unique, and the application field is limited. This is because the casting line has the advantage of uniform thickness and high transparency, which is largely applicable to high-magnification pre-stretch requirements. Developed from single-layer to the second layer and three; now producing LLDPE stretch film based on casting method, early stretch film occupying the mainstream position by blown film.

The PE anti-static stretch film packaging must be stretched, and the tray mechanical packaging has direct stretching wrap film Suppliers and pre-stretching. The method is less tensile (about 15%, if the tensile multiplication exceeds 55% to 60%, the original yield point of the film is exceeded, the film width is reduced, the puncture performance is lost, and the film is easily broken). Widely used in foreign trade exports, food, drinks, films, papermaking, dyes, plastic chemicals, glass ceramics, electromechanical castings, etc.

The final use of the scissors to cut the tray mechanism package on the packaging card into a draw form. Abstract Analysis of PE anti-static stretch film characteristics The PE anti-static stretch film is a plastic film having viscous stretchable and wrapped wrap, which is self-adhesive not adhered to the subject, which is only the surface of the apparatus and film.