Pure cotton fabric is a textile made of cotton as raw material, through the loom, and the warp and weft yarns are interwoven vertically and horizontally. At present, according to the actual source of processed cotton, it is divided into virgin cotton fabric and recycled cotton fabric.
① Natural white cloth: ordinary cloth, fine cloth, coarse cloth, canvas, twill grey cloth, primary color cloth.
② Colored cloth: There are vulcanized blue cloth, vulcanized ink cloth, Shihlin blue cloth, Shilin gray cloth, colored poplin, various colored cards, and various colored Chinese cloth.
③ Flower cloth: It is a cloth printed and dyed with various colors and patterns. Such as: plain printed cloth, printed twill, printed serge, printed straight tribute.
④Yarn-dyed cloth: It is a cloth such as plaid cloth, quilt cloth, flannel cloth, thread cloth, decorative cloth, etc. that is made by dyeing yarn or thread first and then woven on the machine.
Nonwoven fabric is composed of directional or random fibers. It is a new generation of environmentally friendly materials. It is called cloth because of its appearance and certain properties.
Non-woven fabrics are moisture-proof, breathable, flexible, light in weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low in price, and recyclable. For example, polypropylene (pp material) pellets are used as raw materials, and are produced by a continuous one-step method of high temperature melting, spinning, laying, and hot pressing and coiling.
Characteristics of Nonwoven Fabrics
The non-woven fabric has no warp and weft threads, so it is very convenient to cut and sew, and it is light in weight and easy to shape.
Because it is a kind of fabric that does not need spinning and weaving, it just orients or randomly arranges textile staple fibers or filaments to form a web structure, and then uses mechanical, thermal bonding or chemical methods to reinforce it.
It is not interwoven and braided by yarns one by one, but the fibers are directly bonded together by physical methods, so when you get the sticky scale in your clothes, you will find that, You can't get a single thread out. Nonwovens break through the traditional textile principle, and have the characteristics of short process flow, fast production rate, high output, low cost, wide use, and many sources of raw materials [1].
The Relationship Between Nonwoven Fabrics and Spunbond Fabrics
Spunbond and non-woven fabrics are subordinate. There are many production processes for the manufacture of non-woven fabrics, of which spunbond is one of the non-woven production processes (including spunbond, meltblown, hot rolling, spunlace, most of which are currently on the market). Nonwovens produced by the spunbond method)
According to the composition of non-woven fabrics, there are polyester, polypropylene, nylon, spandex, acrylic, etc.; different components will have completely different styles of non-woven fabrics. The spunbond fabric usually refers to polyester spunbond and polypropylene spunbond; and the styles of these two kinds of fabrics are very similar, and can only be judged by high temperature test.
Non-woven fabric is a kind of non-woven fabric, which directly uses polymer chips, short fibers or filaments to form fibers through air flow or machinery, and then undergoes hydroentanglement, needle punching, or hot rolling reinforcement, and finally after finishing Formed non-woven fabric. A new type of fiber product with a soft, breathable and flat structure, the advantage is that it does not produce lint, it is strong, durable, and silky soft, and it is also a kind of reinforcing material, and it also has a cotton feel. Compared with cotton fabrics, non-woven Cloth bags are easy to form and inexpensive to manufacture.
Advantage:
1. Light weight: Polypropylene resin is used as the main raw material for production, with a specific gravity of only 0.9, only three-fifths of cotton, with fluffy and good hand feeling.
2. Soft: It is composed of fine fibers (2-3D) and is formed by light point hot melt bonding. The finished product is moderately soft and comfortable.
3. Water repellency and breathability: Polypropylene chips do not absorb water, have zero moisture content, 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 dry and easy to wash.
4. Non-toxic and non-irritating: The product is produced with FDA-compliant food-grade raw materials, without other chemical ingredients, with stable performance, non-toxic, no peculiar smell, and does not irritate the skin.
5. 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.
6. Antibacterial properties. The product is water-repellent, not moldy, and can isolate the erosion of bacteria and insects in the liquid, and is not moldy.
7. Good physical properties. It is made of polypropylene spun directly 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.
8. 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, their chemical structures are quite different. The chemical molecular structure of polyethylene is quite stable and extremely difficult to degrade, so it takes 300 years for plastic bags to be decomposed; while the chemical structure of polypropylene is not strong, 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:
1) Compared with textile cloth, the strength and durability are poor.
2) Can't be washed like other fabrics.
3) 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.
Features of Pure Cotton
① Hygroscopicity:
Cotton fiber has good hygroscopicity. Under normal circumstances, the fiber can absorb water into the surrounding atmosphere, and its moisture content is 8-10%, so it touches human skin, making people feel soft and not stiff. If the humidity of the cotton cloth increases and the surrounding temperature is high, the moisture contained in the fibers will all evaporate and dissipate, so that the fabric maintains a state of water balance and makes people feel comfortable.
② Insulation:
Because cotton fiber is a poor conductor of heat and electricity, the thermal conductivity is extremely low, and because cotton fiber itself has the advantages of porosity and high elasticity, a large amount of air can be accumulated between fibers, and air is a poor conductor of heat and electricity. Therefore, pure Cotton fiber textiles have good thermal insulation, and wearing pure cotton fabrics makes people feel warm.
③ Heat resistance:
The heat resistance of pure cotton fabrics is good. When the temperature is below 110°C, it will only cause the moisture on the fabric to evaporate without damaging the fibers. Therefore, the pure cotton fabrics have no effect on the fabrics at room temperature, such as wearing, washing, printing and dyeing. Improves the washability and wearability of pure cotton fabrics.
④ Alkali resistance:
Cotton fiber has a high resistance to alkali. Cotton fiber is not damaged in alkali solution. This performance is conducive to washing of pollution, disinfection and removal of impurities after taking it. At the same time, it can also dye, print and remove cotton textiles. Various process processing to produce more new varieties of cotton weaving.
⑤ Hygiene:
Cotton fiber is a natural fiber, its main component is cellulose, containing a small amount of waxy substances, nitrogenous substances and pectin. The pure cotton fabric has been inspected and practiced in many aspects, and the fabric has no irritation or side effects in contact with the skin. There is also non woven fabric slitting machine. Any interest, welcome to contact us!