300T full dull polyester pongee fabric PVC coated fabric for rain coat and garment fabric
See DetailsAs the basis of coated cloth, DTY (Draw Textured Yarn) Oxford cloth itself has many advantages. DTY yarn, that is, drawn textured yarn, is endowed with excellent elasticity, high strength and wear resistance through a specific spinning and deformation process. This fabric is light and strong, and is often used in bags, tents, clothing and other fields. Especially in occasions where it needs to withstand large tension or frequent friction, DTY Oxford cloth shows extraordinary durability. However, the basic performance of DTY Oxford cloth alone is still difficult to meet the demand for higher protective performance in certain specific application scenarios. Therefore, the introduction of P6T TPU coating technology has become the key to improving fabric performance.
As a high-performance elastomer, TPU (thermoplastic polyurethane) has attracted much attention for its unique performance combination since its inception. It not only has excellent wear resistance and tear resistance, but also can maintain structural integrity under extreme conditions; TPU also has excellent elastic recovery rate, which means that it can quickly return to its original state after being subjected to external force, maintaining the morphological stability of the fabric. In addition, TPU's good weather resistance enables it to resist the erosion of various environmental factors such as ultraviolet rays, moisture, and chemical corrosion, thereby extending the service life of the fabric. It is these excellent properties that make TPU an ideal coating material for DTY Oxford cloth.
As the core step in the production of P6T TPU coated cloth, the complexity and precision of coating preparation should not be underestimated. At this stage, TPU raw materials do not act alone, but need to work together with a series of functional additives (such as plasticizers, anti-aging agents, pigments, etc.) to form a coating slurry. Plasticizers can improve the processing properties of TPU and make it easier to coat; anti-aging agents can effectively resist the damage of environmental factors to fabrics and extend their service life; pigments give fabrics rich colors to meet diverse aesthetic needs.
Formula design is the top priority in the coating preparation process. It requires engineers not only to have an in-depth understanding of the performance of each additive, but also to be able to accurately calculate the proportion of each component according to the application requirements of the final product. This process is both a reflection of a deep understanding of material science and a test of precise control capabilities. Any slight adjustment in the formula may have a significant impact on the final performance of the fabric. Therefore, experienced engineers often need to find the "golden formula" that can meet performance requirements and maintain a cost-effective balance through multiple tests and adjustments.
Once the formula is determined, the next challenge is how to evenly disperse the various components in the TPU raw material to form a stable and high-performance coating slurry. High-speed stirring is the key step to achieve this goal. Through the high-speed rotating agitator, the components in the slurry are forced to disperse and mix under strong shear and impact forces until they reach a uniform distribution on a microscopic scale. This process not only requires excellent performance of the stirring equipment, but also requires engineers to accurately control the stirring parameters (such as speed, time, temperature, etc.) to ensure the stability of the quality of the coating slurry.
After the coating slurry is ready, it is also crucial to choose the right coating process. Common coating processes include scraping, spraying, dipping, etc., each of which has its unique advantages and applicable scenarios. The scraping process is suitable for situations with strict requirements on coating thickness, which can ensure uniform coating and consistent thickness; the spraying process is known for its high flexibility and strong adaptability, and is suitable for coating of complex shaped surfaces; the dipping process is more suitable for large-area, high-efficiency production needs. Engineers need to flexibly select the most suitable coating process according to the specific needs of the product and the actual situation of the production line.
After the coating is completed, the next step is heating and curing. At this stage, the TPU component in the coating slurry reacts chemically under specific temperature and time conditions to form a tight network structure and chemically bond with the DTY Oxford cloth substrate. This process not only enhances the bonding strength between the coating and the substrate, but also gives the P6T TPU coated cloth more excellent physical properties. The parameters of heating and curing (such as temperature, time, pressure, etc.) need to be accurately set according to the type and formula of TPU to ensure the smooth progress of the curing process and the performance of the final product.
Throughout the production process, quality inspection is always carried out, from the inspection of raw materials entering the factory, to the preparation and monitoring of the coating slurry, to the quality inspection of the finished product, each link is indispensable. Through advanced testing equipment and strict quality control system, we ensure that each batch of P6T TPU coated fabric can meet the established performance standards and meet the diverse needs of customers.