What is the composite process of TPU composite film?

TPU composite film is a high-performance composite film made of thermoplastic polyurethane (TPU) material, which is widely used in clothing, footwear, medical and other fields. Its composite process mainly involves combining TPU materials with other materials (such as cloth, leather, etc.) through specific processes to enhance the performance and durability of the product.

The composite process usually includes the following steps:

1. Pretreatment: First, pretreat the substrate, such as cleaning, drying, etc., to ensure that there are no impurities on the surface to facilitate subsequent compounding.

2. Coating: Melt the TPU material and apply it evenly on the base material. This step requires precise control of temperature and coating thickness to ensure the uniformity and adhesion of the TPU layer.

3. Composite: The coated substrate is closely combined with another layer of material (such as cloth) through heat pressing or adhesive. The hot pressing process requires precise control of temperature and pressure to ensure good bonding between the TPU layer and the substrate.

4. Curing: The composite TPU composite film needs to be cured after a certain time and temperature to ensure a strong bond between the TPU layer and the base material.

5. Post-processing: The cured TPU composite film may need post-processing processes such as cutting and trimming to meet the requirements of the final product.

The entire composite process requires precise control of each link to ensure the quality and performance of the TPU composite film. Through this composite process, TPU composite membrane can provide excellent waterproof, breathable, wear-resistant and other properties to meet the needs of different application scenarios.