What is meltblown fabric? What is the difference between meltblown fabric and non-woven fabric?

Melt blown cloth is mainly made of polypropylene, and the fiber diameter can reach 1~5 microns. There are many voids, fluffy structure and good folding resistance. These ultra-fine fibers with unique capillary structure increase the number and specific surface area of ​​fibers per unit area.

The meltblown fabric has good filtering, shielding, heat insulation and oil absorption. It can be used in air, liquid filter materials, isolation materials, absorbent materials, mask materials, warmth-keeping materials, oil-absorbing materials and wipes.

The process of melt blown cloth: polymer feeding-melt extrusion-fiber formation-fiber cooling-net formation-reinforcement into cloth.

Application range of melt blown cloth

Medical and health cloths: surgical gowns, protective clothing, disinfection wraps, masks, diapers, sanitary napkins, etc.;

Home decoration cloth: wall cloth, table cloth, bed sheet, bedspread, etc.;

Clothing cloth: lining, fusible interlining, wadding, shaped cotton, various synthetic leather base cloth, etc.;

Industrial cloth: filter material, insulating material, cement packaging bag, geotextile, covering cloth, etc.;

Agricultural cloth: crop protection cloth, seedling raising cloth, irrigation cloth, thermal insulation curtain, etc.;

Others: space cotton, thermal insulation materials, linoleum, cigarette filters, tea bags, etc.

What is the difference between meltblown fabric and non-woven fabric?

Melt blown cloth is mainly made of polypropylene, and the fiber diameter can reach 1~5 microns. There are many voids, fluffy structure and good folding resistance. These ultra-fine fibers with unique capillary structure increase the number and specific surface area of ​​fibers per unit area.

The meltblown fabric has good filtering, shielding, heat insulation and oil absorption. It can be used in air, liquid filter materials, isolation materials, absorbent materials, mask materials, warmth-keeping materials, oil-absorbing materials and wipes.

The filter material is a kind of meltblown polypropylene microfibers randomly distributed and glued together, white appearance, smooth, soft fiber denier of 0.5-1.0 material, random fiber distribution provides more opportunities for heat between fibers Bonding.

Thereby, the melt blown gas filter material has a larger specific surface area and a higher porosity (≥75%). After very high pressure filtration efficiency, the product has low resistance, high efficiency, high dust holding capacity and so on.

Non-woven fabric is composed of oriented or random fibers. It is called cloth because of its appearance and certain product properties.

Non-woven fabric has the characteristics of moisture-proof, breathable, flexible, light weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low in price, recyclable, etc.. For example, using polypropylene (pp material) particles as raw material, through high temperature Melting, spinning, spreading, hot pressing and coiling are continuously produced in one step.

Features of non-woven fabric:

The non-woven fabric has no warp and weft threads, it is very convenient to cut and sew, and it is light in weight, easy to shape, and loves hand lovers.

Because if it is a fabric that can be formed without spinning and weaving, it will only analyze and oriented or randomly arrange the textile short fibers or filaments to form a fiber network structure, and then we use traditional machinery, thermal bonding or chemical, etc. The method needs to be reinforced.

It is not intertwined by a single yarn, but is directly combined with fibers through physical methods, so when you get the sticky name on your clothes, you will find that it cannot pull out a thread. Non-woven fabric breaks through the traditional textile principle, and has the characteristics of short process flow, fast production speed, high output, low cost, wide use, and multiple sources of raw materials.

The relationship between non-woven fabric and spunbond fabric:

Spunbond nonwovens and affiliation. Many of the production processes of nonwovens are characterized in that spunbonded nonwovens is a production method, including spunbond, meltblown, hot-rolled, and spunlace. Most of our students on the market now It is a non-woven fabric produced by spunbond method).

According to different components, non-woven fabrics include polyester, polypropylene, nylon, spandex, acrylic, etc.; different components have completely different styles of non-woven fabrics.. Spunbond fabrics usually refer to polyester spunbond and polypropylene spun Sticky; the styles of the two cloths are very similar, identified by high temperature.

Non-woven fabric is a kind of non-woven fabric, which is directly used polymer sheet, short fiber or filament fiber air laying or mechanical, then hydroentangling, needle punching, or hot rolling and strengthening to complete the final non-woven After the fabric is formed.

A new type of soft, breathable fiber product and flat structure, no lint, toughness, durability, softness, silk-like advantages, a material enhanced, but cotton also feels, and non-woven bags are easier to shape than cotton , And very cheap.

advantage:

Lightweight: Polypropylene synthetic resin is used as the main raw material for the production enterprise. The proportion is only 0.9, only three-fifths of China's cotton. It is fluffy and feels good.

It is formed by hot-melt bonding of fine fibers (2-3D) with light spots.. The finished product has moderate softness and comfort.

Water repellent, breathable: non-absorbent polypropylene chip, zero moisture, finished water side, made of 100% fiber with porosity, good air permeability, easy to maintain dry cloth, easy to wash.

Non-toxic and non-irritating: The product can be produced with food-grade raw materials that are more compliant with FDA, without any other student chemical components, and its performance is relatively stable, non-toxic, non-odor, and non-irritating to the skin.

Antibacterial and anti-chemical agents: Polypropylene is a chemically blunt substance, not a worm, and can isolate the presence of bacteria and insects in the liquid; antibacterial, alkali corrosion, the finished product does not affect the erosion strength.

Antibacterial properties: pull with water, molds, bacteria and insects and liquids can isolate the products from erosion and mold.

Good physical properties: it can be spun from polypropylene and can be directly laid into a net for thermal bonding. The product has better strength than ordinary staple fiber products, non-directional strength, and similar structural strength in vertical and horizontal directions.

In terms of environmental protection, the raw material of most non-woven fabrics used is polypropylene, while the raw material of plastic bags is polyethylene. Although the names of the two substances are similar, the chemical structures are quite different. The chemical molecular structure of polyethylene is quite stable and extremely difficult to decompose, so it takes 300 years for plastic bags to decompose; while the chemical structure of polypropylene is not strong, and the molecular chain is easy to break, so it can be effectively degraded and entered in a non-toxic form In the next environmental cycle, a non-woven bag can be completely decomposed within 90 days. And the non-woven shopping bag can be reused more than 10 times, and the pollution to the environment after waste is only 10% of the plastic bag.

Disadvantages:

Poor strength and durability compared to woven fabrics.

It cannot be washed like some other fabrics.

The fibers are arranged in a certain direction, so it is easy to crack from right angles and equal angles. Therefore, the improvement of the production method mainly focuses on the improvement of preventing splitting.