Film transparency: you need to know about film blowing machine customization

The transparency of the film produced by a film blowing machine is crucial to the final quality of the product. Depending on the requirements, different products require different levels of transparency, which can be broadly categorized as follows:

1. High Transparency, High Gloss:

Applicable Products: 

High-end garment bags, gift packaging, cling film.

How to Achieve:

Raw Materials: Select resins with inherently high transparency (such as high-quality PP, LDPE).

Key Equipment: A high-efficiency cooling system (IBC internal cooling + dual-outlet air ring) is crucial. Rapid cooling inhibits the formation of large crystals and reduces light scattering, thus significantly improving transparency and gloss. Simultaneously, the die head flow channel design must ensure uniform melt flow.

2. Low Transparency, High Clarity:

Applicable Products: High-end display packaging, optical film substrates.

Key Equipment: In addition to the aforementioned cooling system, extremely high requirements are placed on the cleanliness and dead-angle-free design of the screw and die head to prevent raw material stagnation and decomposition, which can lead to crystal points and yellow spots.

3. Matte, Frosted Effect:

Applicable Products: High-end cosmetic bags, luxury packaging. How to achieve this: It is usually achieved by adding matte masterbatch or using a special ABA structure (with a matte surface material). This places requirements on the stability of the co-extrusion equipment.

The clearer your product positioning, the more precise the solutions provided by equipment suppliers will be.

Contact us now for professional solutions: ryanzhang911222@gmail.com +86 13771616165 Mr. Zhang