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Polyester is a fiber-forming polymer made from purified terephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (EG) through esterification or ester exchange and polycondensation reaction. The fiber made by spinning and post-treatment belongs to a polymer compound. Polyester (PET) fiber is a synthetic fiber spun from the polymer chain by connecting the segments in the macromolecular chain through ester groups. It is called polyethylene terephthalate (PET fiber for short).

In China, fibers with a polyethylene terephthalate content of more than 85% are referred to as polyester. There are many foreign product names, such as Dacron in the United States, Tetoron in Japan, Terlenka in the United Kingdom, etc.

The major categories of polyester include staple fibers, drawn yarns, textured yarns, decorative filaments, industrial filaments, and various differentiated fibers.

What is polyester monofilament yarn？

Polyester monofilament belongs to the category of filament, which is a single filament with a smaller count produced by a single-hole spinneret in the production of chemical fibers, referred to as monofilament. According to the characteristics of different products, processing technology and application fields, according to the structure of monofilament, it can be divided into polyester monofilament, nylon monofilament, polypropylene monofilament, polyethylene monofilament, elastic monofilament, etc. This article mainly introduces polyester monofilament.

Polyester monofilament is made of terephthalic acid and ethylene glycol through polymerization reaction. It is a high value-added special fiber product, also divided into white or colored yarn.

Polyester monofilament usually has bright, semi-bright or fully matte (as shown above) monofilaments, similar to the thickness of hair, and a single strand is used independently.

From the microscopic structure, the molecular chain structure of polyester monofilament is closely arranged, with a high degree of regularity and stability, which makes polyester monofilament have good physical properties and chemical resistance. For example, the benzene ring structure in its molecular chain gives polyester monofilament higher strength and rigidity, while the ethylene glycol segment provides a certain degree of flexibility.

Performance of polyester monofilament yarn

In the production of monofilament, Huazhao has also played new tricks in the selection and use of raw materials. In addition to conventional polyester chips, special functional masterbatch and modified polyester chips are also added, which are significantly different from other ordinary polyester monofilaments.

High strength
Polyester itself has high strength, and the polyester monofilament after special treatment has excellent strength. Not easy to break or damage.

Stability
Not easily affected by environmental factors such as humidity and temperature and undergoing dimensional changes, ensuring the quality stability of the product.

Abrasion resistance
Can resist friction and wear and extend service life. In some environments with frequent friction, such as industrial conveyor belts, outdoor products, etc., it performs well.

Application of polyester monofilament yarn

Monofee has 56 advanced functional polyester monofilament production lines, with an annual output of 28,000 tons of monofilament in the range of 0.08-0.9mm. The polyester monofilament produced has a wide range of applications:

Industrial
Ropes and cables, filters and screens, conveyor belts, etc.

Home
Curtains and window screens, carpets and floor mats, etc.

Textile
Shoes and bags, clothing, uppers, sewing threads and ribbons, etc.