Far-Infrared Thermal Fiber

Developed with integrated melt-blending technology, the Far-Infrared Thermal Fiber - a durable warm fiber - is produced from PET substrate and far-infrared ceramic powder masterbatch. The submicron-sized functional ceramic components are evenly and stably dispersed inside the fiber matrix with a controllable doping ratio, delivering stable and durable far-infrared heat-storage and thermal insulation performance. Since the functional ingredients are internally compounded rather than surface-coated, they will not fall off or migrate after repeated washing, ensuring long-term stable warmth retention. Natural white is the standard color, and customized dope-dyed colors are available to meet diverse fabric design requirements. The fiber adopts a solid round cross-section as the standard structure, and a customized hollow cross-section is optional. The hollow structure introduces static air insulation, which synergistically enhances the overall thermal retention effect of the fabric on the basis of far-infrared passive heating performance. This fiber features excellent textile process compatibility. It supports pure spinning production and can be blended with cotton, viscose, acrylic and other conventional textile fibers. The blending ratio and fiber specifications can be flexibly adjusted according to end- product warmth requirements, hand feel standards and cost control needs. It is widely applicable to knitting, weaving and nonwoven processes, making this warm fiber a cost- effective choice with strong universality and low industrial application cost.