博文

目前显示的是 五月, 2021的博文

What is the influence of temperature on stretch film product

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  The emergence of   stretch film   has brought us a lot of convenience. The current application of stretch film is very extensive, especially in product packaging and transportation. The production process and quality of the stretched film have a great relationship between the viscosity temperature (TF) and the melting point (TM). These two elements are greatly affected by temperature. So what are the effects of temperature on the production of stretched films? The following is an introduction from the Zhiteng stretch film manufacturer. The temperature dispersion in each zone of the stretched film is a key element that affects the stretch orientation and crystallization of the stretched film. Temperature affects the orientation process through the effect of polymer viscosity and relaxation time. As the temperature increases, the viscosity of the polymer decreases, and it increases under the effect of stabilizing stress. The increase in high elastic deformation is limited...

Reasons for easy fracture of stretch wrapping film

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Stretch wrapping film  is a kind of plastic product. It has been widely used in the logistics industry. Stretch film has the advantages of thin thickness, high viscosity, high elasticity, strong toughness, resistance to pulling, and not easy to break. It is widely used in articles. However, sometimes it is easy to break. Today, the Zhiteng stretch film manufacturer will give you an analysis of the reasons why the stretch wrap film is easy to break. 1. In transporting the stretch wrapping film, the damaged box will rub the edges of the stretch film so that the stretch film will easily break during use. 2. In the process of opening the box, the user of the stretch film cuts the sealing tape because the knife is inserted too deeply, and at the same time, the edge of the stretch film is scratched, which causes the stretch film to break when it is used. 3. The thickness is not up to the requirement, or the recycled material is used, the thickness of the machine film is generally about 2...

How can PE stretch film be cut better?

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  PE stretch film  is one of our packaging materials. Now all walks of life are beginning to use our stretch film, because the general PE stretch film is made of high-quality materials, so we must pay attention to how to cut it. The correct method can guarantee the integrity of our PE stretch film. How to cut PE stretch film: 1. Man-made manual cutting, there is also a sawing machine cutting. Our main tool for hand sawing is a hand hacksaw to cut our pe stretch film. 2. The tool is stretch film cutting, which is cut on a sawing machine, because it is equipped with a high-speed steel saw blade on the sawing machine. Some wire-cutting places often use some portable electric saws, which can cut various metal films or plastic films, but the thickness or diameter of each machine is limited. 3. The pressure of the PE stretch film itself, including the pressure of the molded product and the pressure of the membrane channel system, and then the pressure test of the film product is to ...