Polyester filament has high bunching property and smooth surface. In order to make the surface feel cotton-like, the structure of the fiber must be changed. At present, there are several ways to improve the wool feel and bulkiness of polyester: using the air network form, blowing the filaments, intertwining to form an irregular structure, using different raw material combinations to form a three-dimensional curling and bulky shape, etc.

From the perspective of wool feel, the fineness of the air network deformation is uneven, and the wool feel is quite different. The fineness of the cotton-like silk with different combinations of raw materials is uniform, and the wool feel can be outstanding in the post-finishing process. Production.
At present, the methods for improving the hygroscopicity of polyester mainly include: using fine denier or ultra-fine denier yarn to increase the specific surface area of ​​the fiber and increasing the capillary wicking speed; modifying the cross section of the fiber, increasing the moisture absorption and moisture conduction groove, and speeding up the moisture absorption speed; Hydrophilic modification is carried out to increase the hydrophilic group on the fiber to enhance the hygroscopic ability of the fiber.
In order to improve the gloss of polyester and achieve the effect of cotton fiber, it is necessary to form diffuse reflection on the surface of the fiber to reduce the reflection ability of light. Or absorb part of the light to form a soft luster, and use fine denier or ultra-fine denier filaments to improve the ability of diffuse reflection to soften the light.