In the history of human civilization development, the birth of a major new material means a change in productivity. Take a look at the huge and far-reaching impact on human daily life and the application fields related to "Going to Earth" in the 50 or 60 years since the advent of new non-woven materials!

raw material

Non-woven fabric (English name: Non Woven Fabric or Nonwoven cloth), also known as non-woven fabric, is composed of directional or random fibers to form a fiber web structure, and then reinforced by mechanical, thermal bonding or chemical methods. The fibers used in the production of non-woven fabrics are mainly polypropylene (PP) and polyester (PET). In addition, there are nylon (PA), viscose, acrylic, ethylene (HDPE), and vinyl (PVC).

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  advantage

Lightweight, with polypropylene resin as the main raw material, the specific gravity is only 0.9, only three-fifths of cotton, with fluffy and good hand feeling.

Soft, composed of fine fibers (2-3D) light point-like hot melt bonding molding. The finished product is moderately soft and comfortable

Water repellent and breathable, polypropylene chips do not absorb water, the moisture content is zero, and the finished product has good water repellency. It is composed of 100% fiber, which is porous and has good air permeability. It is easy to keep the cloth surface dry and easy to wash.

Non-toxic, non-irritating, the product is produced with FDA food-grade raw materials, does not contain other chemical components, has stable performance, is non-toxic, has no peculiar smell, and does not irritate the skin.

Antibacterial and anti-chemical agents, polypropylene is a chemically passive substance, not moth-eaten, and can isolate the erosion of bacteria and insects in the liquid; antibacterial, alkali corrosion, and finished products do not affect the strength due to erosion.

Good physical properties, it is made of polypropylene spinning directly spread into a mesh and thermally bonded. The strength of the product is better than that of ordinary staple fiber products, the strength is non-directional, and the vertical and horizontal strengths are similar.

Environmental protection, in terms of environmental protection, the raw material of most of the non-woven fabrics used is polypropylene, while the raw material of plastic bags is polyethylene. Although the two substances have similar names, they are quite different in chemical structure. The chemical molecular structure of polyethylene has quite strong stability and is extremely difficult to degrade, so it takes 300 years for plastic bags to decompose;

The chemical structure of polypropylene is not strong, and the molecular chain can be easily broken, so that it can be effectively degraded, and enter the next environmental cycle in a non-toxic form. A non-woven shopping bag can be completely decomposed within 90 days. Moreover, non-woven shopping bags can be reused more than 10 times, and the pollution to the environment after disposal is only 10% of that of plastic bags.

  shortcoming

Compared with textile cloth, it has poor strength and durability and cannot be cleaned like other cloths. The fibers are arranged in a certain direction, so it is easy to split at right angles, etc. Therefore, the improvement of the production method is mainly focused on the improvement of preventing splitting.

Weaving process

Spunlace, the spunlace process is to spray high-pressure fine water flow onto one or more layers of fiber webs, so that the fibers are entangled with each other, so that the fiber webs can be reinforced and have a certain strength.

Heat sealing and heat bonding non-woven fabrics refer to adding fibrous or powdery hot-melt bonding reinforcement materials to the fiber web, and the fiber web is then heated, melted, cooled and consolidated into a cloth.

Pulp air-laid, air-laid non-woven fabrics can also be called clean paper and dry-laid non-woven fabrics. It uses the air-laid technology to open the wood pulp fiberboard into a single fiber state, and then uses the air-laid method to condense the fibers on the web-forming curtain, and the fiber web is then reinforced into a cloth.

Wet-laid, wet-laid non-woven fabric is to open the fiber raw materials placed in the water medium into single fibers, and at the same time mix different fiber raw materials to make fiber suspension pulp, and the suspension pulp is transported to the web-forming mechanism, and the fibers are in the wet state. Formed into a net and then reinforced into a cloth.

Spunbond, spunbond non-woven fabric is after the polymer has been extruded and stretched to form continuous filaments, the filaments are laid into a web, and the web is then self-bonded, thermally bonded, chemically bonded or mechanically reinforced method to turn the fiber web into a non-woven fabric.

Purpose

Non-woven products are internationally recognized as environmentally friendly products that protect the earth's ecology. It is suitable for agricultural film, shoemaking, tanning, mattress, quilt, decoration, chemical industry, printing, automobile, building materials, furniture and other industries. It is widely used and economical.

Non-woven fabrics are made of chemical fibers and plant fibers on a wet or dry paper machine with water or air as a suspending medium. Although they are cloth and not woven, they are called non-woven fabrics. Non-woven fabric is a new generation of environmentally friendly materials, which has the advantages of good strength, breathable and waterproof, environmental protection, flexibility, non-toxic and tasteless, and low price. If the material is placed outdoors and decomposed naturally, its longest lifespan is only 90 days. When placed indoors, it will decompose within 8 years. It is non-toxic and harmless when burning, so it does not pollute the environment.

Medical and sanitary non-woven fabrics: surgical gowns, protective clothing, disinfection wraps, masks, diapers, civilian wipes, wipes, wet face wipes, magic towels, soft towel rolls, beauty products, sanitary napkins, sanitary pads, and Disposable sanitary cloth, etc.

Non-woven fabrics for home decoration: wall coverings, tablecloths, bed sheets, bedspreads, etc.

Clothing non-woven fabrics: lining, adhesive lining, flakes, shaping cotton, various synthetic leather base fabrics, etc.

Industrial non-woven fabrics: roofing waterproofing membrane and asphalt shingle base material, reinforcing material, polishing material, filter material, insulating material, cement packaging bag, geotextile, covering cloth, etc.

Agricultural non-woven fabrics: crop protection fabrics, seedling raising fabrics, irrigation fabrics, thermal insulation curtains, etc.

Clothing and shoe-making non-woven fabrics: clothing lining, flakes, toe lining, heel lining, underwear, artificial deerskin, synthetic leather, warm shoe lining, cloth sole lining, space cotton.

Automobile industry non-woven fabrics: waste spun thermal insulation felt, shockproof felt, canopy, seat cushion lining, carpet, door lining, automotive filter core, molded seat cushion.

Civil engineering, construction: reinforcement, reinforcement, filtration, linoleum base fabric, drainage board, roof waterproofing material, railway, highway, berm, water slope, port sound insulation, sewers, heat protection, separation, drainage.

Other uses: machine heat-resistant tile, map cloth, calendar cloth, artificial cloth, oil painting cloth, etc.