What is non-woven fabric?

Fibre-mesh reinforcement

The fiber network obtained by different methods, the connection of the internal fibers is relatively loose, the strength is relatively low, it is difficult to meet the needs of use, so it also needs to be strengthened. Common reinforcement methods include chemical bonding, thermal bonding, mechanical strengthening and so on.

Chemical bonding reinforcement method: the adhesive is applied to the fiber network by impregnating, spraying, printing and other methods, and then the water is evaporated by heat treatment, and the adhesive is solidified, so that the fiber network is reinforced to form a cloth.

Thermal bonding reinforcement method: Most of the polymer has thermoplastic, that is, after heating to a certain temperature will melt and become sticky, after cooling and re-curing, using this principle can also be used to strengthen the fiber network. Hot air bonding is commonly used - the use of hot air to heat the fiber web to make it bond and strengthen; Hot rolling bonding - Using a pair of heated steel rollers to heat the fiber web and apply a certain pressure, so that the fiber web is bonded and strengthened.

Mechanical reinforcement method: As the name suggests, it is to apply mechanical external force to strengthen the fiber network. Commonly used are acupuncture, water acupuncture method and so on. The method of acupuncture is to puncture the fiber web repeatedly with a hook thorn, so that the fibers in the fiber web intertwine with each other and play a strengthening role. Friends who have played pokes and pokes should be familiar with this method, and the fluffy fiber can be poked into a variety of shapes by needling. Spunkling is the use of high-speed and high-pressure micro-water jet into the fiber network, so that the fibers intertwined with each other to strengthen, and acupuncture method is similar, but the use of "water needle".

Complete the fiber mesh, fiber mesh reinforcement, and then after a certain post-treatment, such as drying, styling, dyeing, printing, ginning, etc., the fiber officially becomes a non-woven fabric. According to the different mesh and reinforcement processes, non-woven fabrics can be divided into many kinds, such as spunlaced non-woven fabrics, needled non-woven fabrics, spunbonded non-woven fabrics (spun into mesh), melt-blown non-woven fabrics, thermal bonded non-woven fabrics, etc., non-woven fabrics made of different raw materials and production processes also have their own different characteristics.

What are the uses of non-woven fabrics?

Compared with other textile fabrics, the non-woven fabric process is short, the production rate is fast, the output is high, and the cost is low, so the use of non-woven fabrics is very wide, and its products can be seen everywhere, it can be said that it is closely related to our daily life.

Many disposable sanitary products used in our daily life are used in non-woven fabrics, such as disposable bed sheets and pillow covers, disposable sleeping bags, disposable underwear, compressed towels, mask paper, wet wipes, cotton towels, sanitary napkins, diapers, etc. Medical industry operating clothes, isolation clothes, masks, bandages, dressings, dressing materials, etc., are also inseparable from non-woven fabrics. In addition, the wall cloth, carpet, storage boxes, vacuum cleaner filter bags, heat insulation MATS, shopping bags, clothing dust cover, etc., the floor mat in the car, the roof cloth, the door lining, the filter cloth, activated carbon packaging, seat covers, sound insulation cushioning felt, the rear window table board, etc., are also widely used non-woven fabrics.

It is believed that with the continuous innovation of non-woven fiber raw materials, production processes and equipment, more and more non-woven products with excellent performance will appear in our lives to meet our diverse needs.