This invention discloses a manufacturing process for ultra-high single-layer drawn
fiber, which includes: weaving an ultra-high single-layer drawn
fiber base fabric using a double-needle
bed warp knitting machine, wherein the distance between the double needle beds H is 20~50cm, the drawn
fiber linear density is 1000D~2000D, and the mesh density is 12~20 squares / cm. 2 The process involves
heat setting to orient the molecular chains of the drawn fibers; high-frequency heat sealing to laminate upper and lower TPU film
layers onto the upper and lower surfaces of the drawn fabric to form a top layer and a bottom layer; a surrounding band is installed and sealed to the top and bottom
layers to form a sealed
air chamber; and an air
nozzle is installed for inflation testing. This invention achieves an ultra-high single-layer drawn fiber thickness of 20-50cm, breaking through the thickness limitations of existing technologies, simplifying the structure, and maintaining the stable
vertical orientation of the drawn fibers at ultra-high thickness. The mattress surface has high flatness, uniform support, and good
air tightness. Furthermore, the use of TPU material and high-frequency heat sealing technology makes it
environmentally friendly and
pollution-free, suitable for the large-scale production of high-thickness air mattresses and special mattresses.