Air layer fabrics primarily function to provide warmth. Through structural design, they employ a three-layer fabric structure (inner, middle, and outer layers) to create an air gap within the fabric, achieving a warming effect.
Woven fabrics can utilize a double-layer weave, adding a system of warp or weft yarns between the outer and inner warp and weft yarns to form a three-layer sandwich structure. The middle layer uses a fluffy, elastic filling yarn to create a stationary air layer, achieving the same warmth retention. The most typical example is thermal underwear.
Knitted fabrics can include weft-knitted double rib weaves and warp-knitted spacer fabrics. Warp-knitted spacer fabrics are created on a double-needle bed warp knitting machine, using spacer yarns to connect the upper and lower layers, forming a sandwich structure. This structure has larger gaps in the spacer layers, greater design flexibility, and significant development potential.
Air layer fabrics do not wrinkle and can absorb liquids-air layer fabrics use a three-layer structure with large gaps in the middle, and the outer layer is pure cotton fabric, thus possessing water-absorbing and water-locking properties.