PU Coating interlining against Specical Fabric

Industry Knowledge

What is the specific relationship between the coating thickness and breathability of PU coating interlining against specical fabrics?

There is a close relationship between the coating thickness and breathability of PU coating interlining against specical fabrics. Generally speaking, the thickness of the coating will directly affect the breathability of the fabric.
The effect of coating thickness on breathability is mainly reflected in the following aspects:
The relationship between thickness and air permeability: The thicker the coating, the fewer pores on the surface of the fabric, which limits the passage of air and water vapor, resulting in decreased air permeability. On the contrary, when the coating is thinner, there are relatively more pores on the surface of the fabric, which is conducive to the circulation of air and water vapor, thereby improving the breathability.
Technical factors: Although the thickness of the coating is an important factor affecting the breathability, modern coating technology has been able to form tiny breathable holes on the surface of the coating through special processes. These micropores can allow a certain amount of air and water vapor to pass through while maintaining waterproof performance, thereby improving the breathability of the fabric. However, this technology usually needs to be realized on a thinner coating, because too thick a coating may block these micropores and reduce the breathability effect.
Practical application: In practical applications, it is necessary to select an appropriate coating thickness according to specific needs. For example, in applications that require high waterproof performance, a thicker coating may be selected to ensure the waterproof effect; while in applications that require a certain degree of breathability, such as sportswear, outdoor equipment, etc., a thinner coating or a coating technology with a microporous structure will be selected to improve the breathability of the fabric.
It should be noted that the coating thickness is not the only factor that determines the breathability. The fabric substrate, coating type, coating process, etc. will all have an impact on the breathability. Therefore, when choosing a special fabric for PU coated lining, multiple factors need to be considered comprehensively to meet specific application requirements.

For application scenarios that require high breathability (such as high-intensity sportswear), can PU coating interlining against specical fabrics meet the needs?

For application scenarios that require high breathability, such as high-intensity sportswear, PU coating interlining against specical fabrics can meet the needs to a certain extent, but the specific needs need to be comprehensively evaluated based on factors such as the coating thickness of the fabric, substrate selection, coating process, and special treatment technology.
PU coated interlining can affect the breathability of the fabric by adjusting the coating thickness. In scenarios that require high breathability, thinner coatings are usually selected to reduce the obstruction to the breathability of the fabric. In addition, some advanced coating technologies can also form tiny breathable holes on the surface of the coating. These micropores can allow air and water vapor to pass through while maintaining waterproof performance, thereby improving the breathability of the fabric.
The choice of substrate is also crucial. The substrate fabrics commonly used in sportswear, such as polyester and nylon, have certain breathability. By selecting these substrates with good breathability and combining them with appropriate PU coating treatment, the breathability of the fabric can be further improved.
The coating process and special treatment technology will also affect the breathability of PU coated interlining. For example, the use of environmentally friendly and efficient coating processes, as well as the use of special processing technologies such as microporous technology and nanotechnology, can improve the breathability of fabrics to a certain extent.
However, it should be noted that although PU coated linings have certain advantages in breathability, they may still not meet the needs of high breathability in some extreme cases. Therefore, when choosing fabrics, it is necessary to make comprehensive considerations and trade-offs based on the needs of specific application scenarios.
PU coated lining fabrics have certain applicability in application scenarios that require high breathability, but they must be selected based on the specific characteristics of the fabrics and the needs of the application scenarios.