News

TPU composite film is a functional film made of thermoplastic polyurethane as the main raw material. It has extensive and important applications in the field of breathable shoe fabrics. The TPU composite membrane has two core properties: waterproofing and moisture permeability. Its molecular structure contains hydrophilic groups, which can absorb and diffuse the water vapor emitted by the human body in the shoes...

In the composite processing of underwear shoulder straps, TPU hot melt adhesive membrane is a widely used environmentally friendly bonding material. Take the production of shoulder straps of a certain underwear brand as an example. The shoulder straps are made of nylon elastic fabric and webbing or padding through hot pressing. TPU hot melt with a thickness of about 0.05 mm to 0.12 mm is sandwiched in the middle...

A typical case of using TPU film technology for medical protective clothing appeared during the COVID-19 epidemic. At that time, the demand for medical protective clothing surged, and composite fabrics with TPU film as the core became one of the mainstream choices. This type of protective clothing fabric usually adopts a three-layer composite structure, with the outer layer made of polypropylene spunbond non-woven fabric and the middle layer made of TPU breathable film...

Polyether TPU waterproof membrane is a thermoplastic polyurethane elastomer film. Because the molecular chain contains an ether bond structure, it has excellent hydrolysis resistance and good low-temperature flexibility. It is one of the core materials for waterproof and moisture-permeable jacket fabrics. The application in jackets is mainly reflected in composite structures. A common practice is to gather...

Optimizing the coating process of hot melt adhesive film requires systematic improvements from multiple dimensions such as equipment parameters, material properties and environmental control. First of all, a precise temperature management system should be established. The temperatures of the melt glue box, glue pipeline and coating head need to be controlled independently in sections to ensure that the hot melt glue maintains its optimal melting state and avoids thermal degradation. Coating room...

The improvement of transparency of TPU films mainly relies on material formula optimization and molding process control. First of all, high-purity polyester or polyether polyurethane particles are used in the selection of raw materials, and the residual amount of isocyanate is strictly controlled to reduce light scattering caused by impurities in the raw materials. In the extrusion process, by precisely controlling the extrusion temperature...

Temperature-resistant TPU film, also known as thermoplastic polyurethane film, is a material with good temperature resistance. This material is widely used in various industrial fields due to its excellent physical properties and chemical stability. The temperature resistance of TPU film depends on its specific formula and production process. The highest temperature that TPU films of different qualities can withstand...

The waterproofing principle of waterproof and breathable film TPU (thermoplastic polyurethane) is mainly based on its unique microstructure and physical properties. TPU is a polymer material composed of soft segments and hard segments alternately arranged. The soft segments provide elasticity and flexibility, while the hard segments give the material strength and shape-retention capabilities. In TPU film,...