Although stretch film is a packaging product used in many industries. But we must have a lot of annoyance when using stretch film. For example, when the stretched film is packed, the stretched film is still good when it is originally packed. But after a period of time after packaging, it has gradually been broken or the molding quality is poor. Why is this?

If we heat the stretched film before packaging. It may be caused by insufficient heating plate heating amount or mismatched heating temperature with the stretched film. When it is too high, the film sticks to the heat seal plate, increasing the haze of the film. Partial thinning occurs during stretching. When the heating temperature is excessively low, the film heating temperature is low, and the stretching temperature of the film cannot be reached. Break more after stretching. If it is not stretched after heating with a hot plate, it may be caused by excessive stretching.

If the above situations occur. We can divide into different types for processing. If it is because of the problem of the heating plate, we can solve the problem of the heating plate first. If the amount of heating is insufficient, we need to repair the heating plate first so that it can be heated normally and then used. This will ensure the normal supply of heat. Secondly, if the heating plate is overheated, the temperature of the heating plate can be adjusted. Keep it within the normal range. Thicker stretched stretched films are selected for thicker stretches, and lighter stretched stretched films are selected for thinner films. Not only ensure the quality of the product, but also reduce production costs.

Because the material used to make the stretch film is quite special. Although the stretch ductility of the stretched film is very good. But it should not be stretched too much. Excessive stretching can still cause problems with stretched films. The above explanation is the result of excessive heating and stretching of the stretched film and how to solve it. The content is for your reference only.