Most fiberglass nonwovens are generally processed by needling or wet processes, but the North Carolina State University (NCSN) has successfully developed spunlaced nonwoven fabrics of glass fiber and polyester blends.
Diameter 16um coarse denier glass fiber, with hydroentangling difficult to process, if the diameter of 6.5um fine denier glass fiber mixed, it is conducive to improve the spunlace non-woven fabric strength, so the different fineness glass fiber mixing, fine denier fiber Conducive to spunlace, coarse denier fiber is conducive to improve the spunlace non-woven fabric strength.
If the glass fiber and textile staple fiber such as polyester, can enhance the hydroentanglement ability. The glass fiber and low melting point polyester, can produce glass reinforced polyester composite materials.
Researchers at the University of Auburm in the US use NGSN equipment to find that spunlace can produce terracotta cloths, which are produced by acupuncture and hot-rolling processes. The researchers found that changing the spunlace pressure and the time it takes for the web to be affected by water needles can change the pore size of geotextiles.
Aperture is a key indicator of geotextiles, especially the use of sand filter layer, allowing water flow through to prevent soil movement. The effect of the hydroentanglement on the fiber web is enhanced by extending the time of the water needle acting on the web or increasing the spunlace pressure, and the aperture of the fabric is reduced. Aperture size can be adjusted online do not have to stop, thereby increasing production speed, than the geotextile other processing technology flexible and simple.