动态调湿控温立体针织物拓扑优化设计

为研发具有优良动态调湿控温性能的立体针织物,采用双股70 dtex(72 f)的DRYARN?纱线与30 dtex DRYARN?纱线包覆30 dtex氨纶长丝为原料,提出了立体针织物拓扑优化设计方法.通过优化设计各控温单元的排列方式,使控温单元按V字、Y字等斜向错位排列,然后采用单面提花工艺对织物进行局部拉伸与压褶以...

Topological optimization design of dynamic moisture and temperature control for three dimensional knitted fabrics

In order to develop a three-dimensional knitted fabric with excellent dynamic humidity and temperature control, 70 dtex(72 f)×2 DRYARN^® and 30 dtex DRYARN^® wrapped with a 30 dtex spandex filament were selected as raw materials. The topological optimization design method of three-dimensional knitted fabrics was proposed, where the temperature control units were optimized to be arranged in V-shape, Y-shape and other dislocated arrangement, and a folded sheet structure was created by locally stretching and pleating the fabric by using the single-sided jacquard process. The result show that when the human body is sweating, the inner layer of the folded sheet structure absorbs sweat drops and transfers the moisture to the surface layer for rapid evaporation. When the human body feels cold, the inner air channel stores still air and effectively controls the temperature. The insulation rate of the prepared fabrics is more than 54%, and it has excellent temperature control performance. The overall liquid water transfer capacity is more than grade 3, and the liquid water dynamic transfer performance is good, while maintaining excellent tensile recovery performance. It provides a new idea for the research and development of three-dimensional knitted fabrics for winter thermal sports underwear.