zhiteng stretch film

  How to identify the quality of PE stretch film? In recent years, the application of  PE stretch film  in product packaging has become more and more extensive, so the number of consumers buying is also increasing. PE stretch film is a new generation of environmentally friendly packaging materials used. There are more and more pe stretch film manufacturers, and the pe stretch film materials used by enterprises in the competition are different. They will inevitably encounter some quality problems. We can identify the quality of PE stretch film through the following aspects.   1. Look at the transparency and measure the tensile strength: First, pull it apart from the length direction of the pe stretched film, and then pull it apart from the horizontal direction. A stretched film with good stretchability has a strong impact force. The stretch rate of pe stretch film with good quality can reach 100%-300%.   The casting production method has developed from single-lay...

  Will the transverse stretch of the stretched film damage the film? Nowadays,  stretch film  has been widely used in our work. Stretch ratio is a very important process parameter. Whether it is longitudinal stretch ratio or transverse stretch ratio, it has a serious impact on BOPP performance. So what effect does the transverse stretch of the stretched film have on the film?   In the process of producing stretched film, in order to adjust the process conditions and change the film function in time, people will make the width of the two guide rails after the transverse stretching of the tenter and the width of the two guide rails before stretching (or the corresponding clamping mouth) The ratio of the width of the film is called the transverse stretch ratio of the film. The transverse stretching of the film is mainly carried out in the stretching zone. The transverse stretch ratio of the biaxially oriented polypropylene (BOPP) film is 7 to 9 times.   The transve...

  PE stretch film can be used as cling film? Now in our lives, we often see  PE stretch film  and cling film. Many people will wonder, can PE stretch wrap film be used as a cling film? Both are transparent films in appearance, and both can be used at the same time. Used to bandage items. As a result, many consumers have no in-depth knowledge of PE stretch film and cling film, which makes it difficult to distinguish. Today we will take a look together:   Cling film is a kind of stretch film, but because it does not need as high self-adhesive performance as stretch film, the amount of polyisobutylene used will be less. Polyisobutylene is mainly used to increase product flexibility and self-adhesiveness.   Cling film is a kind of plastic packaging products commonly used for fresh food. At present, the main cling films on the market are: one is polyethylene. This material is mainly used for food packaging, such as fruits, vegetables, etc., including those purchased ...