High strength, wear resistance, acid resistance, alkali resistance, high temperature resistance
- Jul 09, 2018 -

Polyester filament is made of polyester as a long-term yarn. Polyester is an important variety in synthetic fiber. It is made from purified terephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (MEG). The polyester thermal fuse is obtained by esterification or transesterification and polycondensation. Fiber high polymer - polyethylene terephthalate (PET), fibers made by spinning and post-treatment. The so-called polyester filament is a filament having a length of more than a kilometer, and the filament is wound into a mass.

First, the characteristics of polyester filament

Strength: The strength of polyester fiber is nearly 1 times higher than that of cotton and 3 times higher than that of wool. Therefore, polyester fabric is strong and durable.

Heat resistance: It can be used at -70 ° C ~ 170 ° C, which is the best heat resistance and thermal stability of synthetic fibers.

Elasticity: The elasticity of polyester is close to wool, the wrinkle resistance is higher than other fibers, the fabric is not wrinkled, and the shape retention is good.

Abrasion resistance: Polyester's wear resistance is second only to nylon, ranking second in synthetic fiber.

Water absorption: Polyester has low moisture absorption rate and good insulation performance. However, due to low water absorption, the static electricity generated by friction is large, and the natural adsorption performance of dyes is poor. Therefore, polyester is generally dyed by high temperature and high pressure dyeing.

Dyeability: Polyester itself lacks hydrophilic groups or dye acceptor parts, so polyester has poor dyeability and can be dyed with disperse dyes or nonionic dyes, but the dyeing conditions are harsh.

Second, the use of polyester filament

As a fiber for clothing, polyester has a wrinkle-free and non-ironing effect after washing. Polyester is often blended or interwoven with various fibers, such as cotton polyester, wool polyester, etc., and is widely used in various clothing materials and decorative materials. Polyester is industrially used for conveyor belts, tents, canvas, cables, fishing nets, etc., especially for polyester cords for tires, which are close to nylon in performance. Polyester can also be used for electrical insulation materials, acid-resistant filter cloths, and pharmaceutical industry fabrics. Synthetic fiber has been widely used in various fields of the national economy because of its high strength, wear resistance, acid resistance, alkali resistance, high temperature resistance, light weight, warmth, good electrical insulation and no fear of mildew.

Third, polyester filament and chemical staple fiber

Textile fibers are divided into natural fibers and chemical fibers. Natural fibers are mainly silk, wool, cotton and hemp. Chemical fibers are divided into synthetic fibers and man-made fibers.

Comparing polyester filaments and acetate filaments, because they are equal, they are classified later, and polyester is a synthetic acetic acid.

Fourth, polyester filament and staple fiber

Polyester (polyethylene terephthalate, PET) is polymerized from PTA and MEG. PET is rice-grained and diverse. 75% is used for polyester for chemical fiber, and polyester is produced according to the requirements of the textile industry. Polyester staple fiber and polyester filament yarn are produced, and polyester fiber is divided into two types: filament and staple fiber. The so-called polyester filament is a filament having a length of more than a kilometer, and the filament is wound into a mass. Polyester staple fibers are staple fibers of a few centimeters to a dozen centimeters.

5. Characteristics and uses of polyester fiber

Strength: The strength of polyester fiber is nearly 1 times higher than that of cotton and 3 times higher than that of wool. Therefore, polyester fabric is strong and durable.

Heat resistance: It can be used at -70 ° C ~ 170 ° C, which is the best heat resistance and thermal stability of synthetic fibers.

Elasticity: The elasticity of polyester is close to wool, the wrinkle resistance is higher than other fibers, the fabric is not wrinkled, and the maintenance is good.

Abrasion resistance: Polyester's wear resistance is second only to nylon, ranking second in synthetic fiber.

Water absorption: Polyester has low moisture absorption rate and good insulation performance, but due to low water absorption, the static electricity generated by friction is large and the dyeing performance is poor.

As a fiber for clothing, polyester has a wrinkle-free and non-ironing effect after washing. Polyester is often blended or interwoven with various fibers, such as cotton polyester, wool polyester, etc., and is widely used in various clothing materials and decorative materials. Polyester is industrially used for conveyor belts, tents, canvas, cables, fishing nets, etc., especially for polyester cords for tires, which are close to nylon in performance. Polyester can also be used for electrical insulation materials, acid-resistant filter cloths, and pharmaceutical industry fabrics. Synthetic fiber has been widely used in various fields of the national economy because of its high strength, wear resistance, acid resistance, alkali resistance, high temperature resistance, light weight, warmth, good electrical insulation and no fear of mildew.


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