What are the raw materials for nonwovens?

2019-09-23 15:28

Manufacture of nonwoven fabrics important fiber raw material is polypropylene fiber (polypropylene cloth), but is not the only raw material, polyester fiber (polyester cloth), acrylic resin fiber, polythiophene fibers, viscose fibers, etc. can be used in the production of manufacturing nonwoven fabrics, in addition to the above organic chemical fibers, cotton, linen, wool, silk, and other natural fibers can be used to produce and manufacture of nonwoven fabrics;


Nonwoven fabrics are also known as nonwoven handmade, needle punched nonwoven fabrics, tie-needle nonwoven fabrics, etc., the selection of polyester fibers, polyester cloth fiber (commonly known as: PET) material production and manufacturing, through the tie-needle processing technology processing and become available, can be carried out in different thicknesses, tactile sensation, strength and so on. Nonwoven fabrics have the advantages of waterproof, breathable, flexible, lightweight, flame retardant, non-toxic and odorless, high quality and low price, can be recycled. It is suitable for different industries, such as acoustic noise reduction, heat insulation, electric heating pads, protective masks, apparel, medical treatment, fillers and so on.


According to the production process is divided into:


PET polyester fabric nonwoven fabrics


1. Hydroentanglement nonwoven fabrics: Hydroentanglement production process is a high-pressure micro-water jet to a layer or two layers of fibers in the network, so that the fibers are coiled together, so that the fiber network to obtain reinforcement and have a certain strength.


2. Hot melt nonwoven fabrics: thermal bonding nonwoven fabrics refers to the fiber network by adding fibrous or powdery hot melt bonding reinforcement materials, fiber network and then through the temperature melting cold reinforcement into cloth.


3. Pulp airflow into the net nonwoven fabric: airflow into the net nonwoven fabric can also be called dust-free wipes, dry paper nonwoven fabric. This is the use of airflow into the network technology will be the wood fiber board open single fiber condition, followed by airflow method to make the fiber solidification in the net curtain, fiber network and then reinforced into cloth.


4. Wet test nonwoven fabrics: wet test nonwoven fabrics is placed in the water chemical material fiber raw materials open single fiber, and let different fiber raw materials mixed, made of fiber suspension slurry, suspension slurry passed to the netting mechanism, the fiber in the wet state into the net and then reinforced into cloth.


5. Spunbond nonwoven fabrics: spunbond nonwoven fabrics need to be compressed in the polymer has long been, bending and constant polyester filaments, polyester filaments laid into a net, fiber network and then through its own bonding, thermal bonding, analytical chemical bonding or mechanical reinforcement methods, so that the fiber network into a nonwoven fabric.


6. Meltblown nonwoven fabrics: meltblown nonwoven fabrics production process: polymer cut sun machine --- melt extrusion molding --- fiber caused --- fiber cooling --- into the network --- reinforcement into cloth.


7. Needle nonwoven fabrics: needle nonwoven fabrics is a kind of dry test nonwoven fabrics, needle nonwoven fabrics is the use of felting needles of the role of puncture, the expansion of the fiber network reinforced into cloth.


8. Sewing nonwoven fabric: sewing nonwoven fabric is a kind of dry test nonwoven fabric, sewing method has the application of textile magnet coil structure on the fiber network, cotton yarn layer, non-textile materials (such as plastic sheet, plastic thin metal foil, etc.) or their intersecting lines for reinforcement, in order to make nonwoven fabric.


9. Water-absorbent nonwoven fabrics: key applications in the production and processing of raw materials for health services, in order to obtain a relatively strong sense of touch and non-scratch skin. Such as sanitary napkins, clean and hygienic sealing gasket is to utilize the hydrophilic effect of absorbent nonwoven fabrics.


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