1. Breathable PE film,breathable film backsheet in diapers
Breathable PE film is a new type of polymer waterproof material. It has a certain water vapor transmission rate, but can prevent liquid leakage. Therefore, it has been widely used in the fields of medical treatment, baby diapers and sanitary products. However, during the processing of breathable PE film, problems such as uneven film thickness and accumulation of film heads are often encountered, and defects such as gel and crystal points may also appear in the product. What if these problems were solved? Javachem® SF fluorosilicone processing aids are a good choice.
Javachem® SF is a fluorosilicone processing aid. Using a small amount of this additive in the processing of breathable PE film can effectively improve the problems of die accumulation and uneven thickness of the die, and avoid defects such as shark skin and crystal points.
2. Application fields of breathable PE film
With the characteristics of breathable and waterproof, breathable PE film is widely used in feminine hygiene products, baby diapers and other products. Compared with the non-breathable films used for this type of products, breathable PE film can bring greater comfort to the user and reduce problems such as dermatitis caused by the impermeability of the material.
3. Processing difficulties of breathable PE film
During the processing of breathable PE film, problems such as uneven film thickness and die stacking are often encountered, and defects such as gel and crystal points may appear in the film, which affect the appearance quality. Therefore, how to eliminate melt fracture, avoid die accumulation, and reduce crystal points in the film are the difficulties in the processing of breathable PE film.
To solve these problems, we can start from several directions:
A. In terms of raw materials: reduce the use of stearate or wax additives, and use antioxidants with better compatibility;
B. Process: increase the die temperature;
C. Auxiliary: Fluoropolymer auxiliary can be added.