Nonwovens Continue To Rise In The Global Textile Market.

　 Functional filtration materials are widely used.

A new type of needle punched nonwovens produced by Murata Corporation, Japan Spin Filtering materials, with its unique three-dimensional mesh structure, uniform pore distribution, good filtration performance, high yield, low cost and variety, gradually replace the traditional knitted filter material.

The high temperature and anti static filter material made of carbon fiber and permanent conductive fiber through acupuncture technology can timely discharge the electrostatic generated in the filtration process outside the dust collector, so as to prevent electrostatic accumulation and produce electric sparks and destroy the filter bag. The composite high temperature and antistatic filter material is made of two or more than two kinds of materials, that is, the composite material is coated with microporous membrane on the surface of the needle punched filter material, which not only improves the dust catching performance of the filter material, but also can only leave the dust on the surface, which is easy to fall off, and improves the peeling property of the filter material.

In addition, a variety of functional needle punched nonwoven filter materials are gradually appearing in the market. Filtering the white blood cells from the blood cells can filter out the white blood cells in the blood supply, eliminate various transfusion reactions and improve the medical level; the non-woven fabric shielded by electromagnetic radiation can be made into wall cloth and curtains, used for computer rooms, which can prevent electromagnetic interference and prevent leakage of electronic information. In the sound system, people have more and more demanding sound quality, and more strict control of frequency and phase.

Long life of sandwich paper blankets

Dinarsu, a well-known carpet manufacturer in Turkey, uses the --BOM blanket of needle punched paper blankets produced by the high-tech production line. It is a kind of circular nonwovens made from needle punched to the substrate. Fiber mesh materials nylon Polyester fiber is the main raw material, and the base material is made of nylon staple yarn and nylon filament or nylon filament. The BOM carpet is made of polyester or nylon monofilament as raw material. The rigid and incompressible bottom net skeleton is made by weaving, and then the needle net is combined with the bottom net to form a web mat compound similar to the sandwich structure.

At the same time, the BOM carpet has strong hydrophobic, stiff, and incompressible monofilament bottom net as skeleton. It has strong tensile strength and long elasticity. Under repeated high pressure, the water filtering space of bottom net structure will not be destroyed, which ensures that after high pressure squeezing, it still has good water filtration performance. The incompressibility of the BOM blanket ensures that it has larger water holding clearance, and the water discharged from the squeezing zone can be uniformly discharged from the void.

The end of the life of ordinary paper blankets is mainly caused by compaction and pollution. In order to achieve full discharge, it is necessary to wash the blankets. Generally speaking, 0.5~0.6Mpa water pressure is difficult to penetrate the blankets, while high pressure washing and vacuum pumping enhance the decontamination ability, but higher requirements for the blanking of blankets are put forward. Through optimizing the raw materials, BOM reasonably configuring needling and finalizing processes, greatly improving the bonding strength of fiber blankets, ensuring that BOM is not easy to depilate under high pressure washing and pumping conditions, and prolongs the service life.

　　 Tunability represents geotechnical engineering. cloth trend

Short fiber needle punched geotextile is a good filter and drainage material. It can completely replace the traditional sand and gravel filter layer in the relevant parts of the earth rock dam, and its reverse osmosis ability is directly proportional to the thickness of the geotextile. The short fiber needle punched nonwoven geotextile developed by GlenRaven company has the characteristics of light weight, high tensile strength and simple construction. Its basic functions such as anti filtration, drainage, seepage and reinforcement can play a full role in various engineering buildings.

Geotextiles can separate different sizes of soil, sand and stone from foundation or building materials, so as to avoid intermixing and destroy structural integrity. Short fiber needle punched geotextiles can be made of polyester, vinylon, etc. Viscose fiber And other fiber composite processing, textile waste can also be used, the size range is 2.78~13.3dtex. When the geotextile is used as the isolation layer, the load is not big, and the strength requirement for the material is not high. Moreover, the short fiber needle geotextile has larger elongation and is not easy to crack. The short fiber geotextile can also be used to separate the water in the building from the geotextile plane. In addition, the use of geotextiles with isolation can save building materials and reduce the laying thickness of various materials in highway and railway subgrade.

The technology of short fiber needled geotextiles has great adjustability, and the purpose of optimizing product performance can be achieved by changing the process. From the combination of fiber to the change of needle index, the short staple Geotextiles to be remodeled can be reconstructed. Needling depth and needle density are two key indicators. They can also be flexibly adjusted according to the product strength, structural tightness and the need to avoid stratification.