How To Produce High Transparent PE Film?

How to produce high transparency PE film Improving the transparency of PE film has always been the goal pursued by the film industry. According to the current type of equipment, in order to produce a highly transparent PE film, a casting device and a blown water cold blown film device can be used. How to produce high transparent PE film? Today ABS Plastic Tube Core Supplier will tell you the answer.

Of course, first of all, the film blowing equipment with internal cooling is required, and cooling is performed with cooling water. Other factors include the following: raw material factors, additive factors, and film surface smoothness factors.

First, the raw material factors:

1. Raw material itself: Lower molecular weight PE has higher transparency than high molecular weight PE.

2. LDPE has higher transparency than LLDPE. In addition, if the LDPE film is formed into a down-blowing method and the bubble is water-cooled, the transparency of the LDPE blown film can be improved, and its gloss and softness are also good.

Second, the auxiliary factors:

Such as: antioxidants, catalyst neutralizers, lubricants, opening agents, etc. Most of the PE raw materials contain zinc stearate. However, there is a large difference in content. As a neutralizing agent for the catalyst used in the synthesis of PE, zinc stearate is an essential additive for PE. On the other hand, many PE manufacturers have higher lubricity in PE processing and better openness of PE film after processing. When observed under a microscope, zinc stearate was white mist. It is another important factor in reducing the transparency of PE films. Therefore, it is necessary to produce a highly transparent PE film, a PE material containing no opening agent, and an ultra-high transparent opening smooth masterbatch to ensure the opening performance and obtain a highly transparent film.

Third, the film surface smoothness factor:

The smooth surface of the film, like a calm lake surface, is clear and transparent; the uneven surface will cause light to scatter around and affect the transparency of the film. Through the use of lubricating auxiliaries (process auxiliaries), the smoothness of the surface of the film can be greatly improved, the snake skin, crystal dots, and microcrystalline dots can be reduced, and the slight irregularities or water ripples on the surface of the film can be eliminated, so that the transparency of the film is remarkably improved.

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