How to choose a masterbatch with a smooth opening?
Published Time:
2025-02-19
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Summary
When selecting an antiblocking masterbatch, several factors must be considered to ensure its suitability and effectiveness. Here are some key selection points:
First, optical properties are crucial. To achieve transparency and haze, an antiblocking agent with a refractive index similar to that of the resin (approximately 1.49) should be selected, and its particle size distribution should be narrow and the particle size moderate. In this way, the desired antiblocking effect can be achieved with a smaller amount added.
Second, dispersibility is also an important factor. The particle size of the antiblocking agent needs to be moderate for easy dispersion. Particles that are too small may be difficult to disperse, while particles that are too large may affect the appearance and optical properties of the film. Therefore, choosing a supplier with extensive experience in masterbatch dispersion production is crucial.
In addition, heat sealing and printing performance must also be considered. For films that require heat sealing and printing, a non-migratory, low-friction antiblocking masterbatch should be selected to avoid affecting the peel strength of the film and the adhesion of the ink.
At the same time, for specific applications such as aluminized film and cigarette packaging film, factors such as scratch resistance and machine wear resistance must also be considered. For example, for aluminized film, round and soft antiblocking particles should be selected to prevent piercing the aluminized layer.
Finally, on the premise of meeting the above basic performance requirements, cost is also a factor to consider. By comprehensively evaluating the product performance and price of different suppliers, a cost-effective antiblocking masterbatch can be selected.
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