The Memis Acar study of the Department of Mechanical Engineering of Loughborough University in the United Kingdom proved that the spunlace process can process glass fibers and produce industrial fabrics. Because glass fibers are not crimped, traditional concepts believe that dry-laid nonwovens are difficult to process. Most glass fiber nonwovens are generally processed by needle punching or wet process, but North Carolina State University (NCSU) has successfully developed spunlace nonwovens blended with glass fiber and polyester. Thick-denier glass fiber with a diameter of 16um is difficult to process with spunlace. If mixed with a fine-denier glass fiber with a diameter of 6.5um, it will help increase the strength of the spunlace nonwoven fabric. Therefore, glass fibers of different deniers are mixed and fine-denier fibers are mixed. Conducive to spunlace, thick denier fiber is beneficial to increase the strength of spunlace nonwovens. If glass fiber is mixed with textile staple fibers such as polyester, the spunlace entanglement ability can be enhanced. Mixing glass fiber with low melting point polyester can produce glass native reinforced polyester composite material.
Researchers at Auburm University in the United States used NGSN equipment to find that the spunlace method can produce homespun fabrics. Geotextiles are produced by needle punching and hot rolling. Researchers have found that changing the pressure of the spunlace and the time the web is exposed to the water needle can change the pore size of the geotextile. Pore ​​size is a key indicator of geotextile, especially when it is used as a sand filter layer to allow water to pass through and prevent soil movement. Extending the time that the web is under the action of water needles or increasing the hydroentanglement pressure can enhance the hydroentanglement effect of the web and reduce the pore size of the fabric. The aperture size can be adjusted online without stopping, thus increasing the production speed, which is more flexible and simpler than other processing techniques of geotextiles.
New technology of fabric functional finishing:
In 1995, the American BBA company developed the Interspun process and applied for a patent. Using this process, the surface of the fabric is treated by hydroentanglement, which can have a positive impact on the structure and performance of the fabric. In 1998, BBA Company and Fleissner Company signed a cooperation agreement, Fleissner Company is the exclusive machine supplier of this technology. Fleissner's Aquatex is a system that uses spunlace heads to process woven fabrics, and is known as a revolutionary measure for the finishing process of woven fabrics. After the woven fabric is spunlaced, the yarns in the fabric are loosened and the fabric is effectively cleaned; depending on the layout of the spunlace heads, the effect of peach skin can be obtained on both sides or one side of the fabric; it can also be eliminated The stress generated by the fabric during the process makes the warp yarns more uniform, thereby improving the feel and appearance of the fabric, increasing the thickness of the fabric, making the fabric softer, and the abrasion resistance is more than 300% of that before treatment. Slippage at the sewing site The phenomenon is reduced by more than one time, the anti-pilling performance is improved, the wrinkle resistance is improved, the cloth surface is more uniform, the cloth surface pores are reduced, and the distribution is more uniform. It is used for dyeing cotton fabrics like mercerizing. Therefore, the desizing, smelting, mercerizing, sanding and other processes can be eliminated after the hydroentanglement treatment, and the bleaching process can also be simplified, which has obvious comprehensive economic benefits. Products are widely used in upholstery cloth, filter cloth, home textiles, clothing, and automobile safety airbag fabrics.