In-depth analysis of the hygroscopic performance of weft insert knitted interlining

In the field of textiles, the hygroscopicity of weft insert knitted interlining is a crucial performance indicator. It is not only related to the comfort of wearing, but also directly affects the functionality and durability of clothing. This characteristic mainly depends on two factors: fiber material and post-processing process. By exploring these two aspects in depth, we can better understand how weft insert knitted interlining can play its advantages in various application scenarios.

First of all, from the perspective of fiber material, weft knitted fabrics have a wide range of fiber selection space, which provides great flexibility for designers and manufacturers. Cotton fiber, as a gift from nature, occupies an important position in textile materials with its excellent hygroscopicity and breathability. The porous structure of cotton fiber enables it to effectively absorb and quickly evaporate sweat, even in high temperature or high-intensity exercise, it can keep the body dry, reduce sweat stains and discomfort, and is an ideal choice for making summer clothing, sportswear and infant clothing.

Polyester (polyester fiber) is the leader among synthetic fibers, and is popular for its high strength, wear resistance, and easy drying. Although polyester itself is not as hygroscopic as cotton fiber, special technical treatments, such as adding microporous structures or using hydrophilic modifiers, can significantly improve its moisture absorption and perspiration capacity, making it more suitable for making sports equipment and outdoor clothing that need to dry quickly.

Spandex, known for its excellent elasticity, is often used in clothing that requires good stretchability, such as tights, sweatpants, etc. Although spandex itself has limited contribution to hygroscopicity, when it is blended with other hygroscopic fibers such as cotton or modified polyester, it can maintain the elasticity of clothing while having good hygroscopic properties, meeting people's dual needs for functionality and comfort of clothing.

In addition to the choice of fiber material, post-treatment technology also has an important influence on the hygroscopicity of weft insert knitted interlining. Liquid ammonia finishing is a commonly used post-treatment process, which improves the internal structure and surface properties of the fiber by rearranging the fiber molecular chains under the action of liquid ammonia. This treatment process can significantly improve the hygroscopicity and breathability of weft insert knitted interlining, making the fabric softer and smoother, and having good resilience and dimensional stability. Clothes treated with liquid ammonia fit the skin better and reduce friction when worn. Even in the case of long-term activities or sweating, they can remain fresh and non-sticky, which is very suitable for close-fitting wear and various sports occasions.

In addition, there are other post-treatment processes, such as resin finishing and bio-enzyme treatment, which can also improve the hygroscopicity of weft knitted linings to a certain extent, and at the same time give the fabrics other functions such as anti-wrinkle and antibacterial to meet the personalized needs of different consumers.

The hygroscopicity of weft knitted linings is a complex and delicate system engineering, which depends on the natural properties and artificial improvement of fiber materials, as well as the fine control of post-treatment processes. With the advancement of science and technology and the continuous changes in consumer demand, the hygroscopicity of weft knitted linings will be further optimized and improved in the future, bringing people a more comfortable, healthy and functional wearing experience.