Is there a difference between polyester and polyester?

                     

In the purchase of time, some materials are often easy to cause the attention of some friends, such as: polyester and polyester fiber these two, clear friends will say that this is a kind of material, unclear friends wonder why the same material has a different name?

Is there a difference between polyester and polyester?

By name

Polyester fiber is the international common name, mainly because of the earliest production commodity name and famous, now become the international common name;

Dacron is the Chinese name, where polyester is usually called dacron.

From this point it is clear that they are no different.

Polyester is introduced

Usually refers to the polycondensation of diacid and dialcohol from the polymer compound, including all the molecular chain containing more than 85% of the linear macromolecules of diol p-phthalate composed of fibers.

There are many varieties of polyester fiber, three kinds are given in GB/T4146.1-2009, which are polyethylene terephthalate (PET) fiber, polybutylene terephthalate (PBT) fiber and polypropylene terephthalate (PTT) fiber. Among them, PET fiber in China's commodity name polyester, visible, polyester is only a kind of polyester fiber. Polyester due to its reactants, excellent performance, the development so far as in chemical fiber production is the largest and the most widely used fiber, also is so, people mistakenly think polyester fiber is polyester, however, in recent years, with the improvement of fiber production process, the polyester fiber is increasing the PBT and PTT two new members.

PTT fiber has both the characteristics of polyester and polyamide, which is easy to wash, quick to dry, good elastic recovery, and has better wear resistance and tensile recovery, and is more suitable for the production of composite fiber, elastic fabric, carpet and other materials. In addition to the advantages of polyester, PBT fiber also has better dyeing performance, and has become one of the differentiated fibers with promising development in the field of synthetic fiber. In addition, it also has better aging resistance, chemical reaction resistance and heat resistance, so that it is widely used in engineering plastics, home appliance shell and other fields. The emergence of these two new polyester fibers has not only broken the dominant situation of polyester fibers, but may even replace it within a certain range.

With the advent of PTT fiber and PBT fiber, polyester is no longer the exclusive domain of polyester. However, in practical detection, because these three fibers are difficult to be distinguished by ordinary methods, in theory, they can be identified by combining infrared spectroscopy and melting point method, but the identification process is also difficult. Therefore, according to the standard GB/T 4146.1-2009, the "polyester fiber" report will be issued under normal circumstances, and only when the client clearly requires, and the sample can be determined to be "polyethylene terephthalate (PET)", the testing agency can be identified as "polyester".

                    

Polyester is introduced

Dacron (commonly known as dacron). Polyester is the simplest of the three, and relatively cheap. In addition, it has strong and durable, good elasticity, not easy deformation, corrosion resistance, insulation, crisp, easy to wash and dry, and other characteristics, loved by people.

Polyester fiber, textile fiber raw material is the most important synthetic fiber varieties, with terephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (EG) as raw material through esterification and ester exchange and polycondensation reaction of polymer - polyethylene terephthalate (PET), the spinning and aftertreatment fibers.

Melt-spinning method is generally adopted, and the shape structure observed in the microscope has a circular section and no special longitudinal structure.

                           

Profile-shaped fiber (non-circular cross section) can change the elasticity, make it have special luster and swelling, and improve the ability of holding and covering, anti-pilling, reduce static electricity and other properties. Such as triangle fiber flash effect; Fiveleaf fiber is shiny, feels good, and anti pilling; Hollow fiber has small density and good warmth retention due to its internal cavity.

                                                              

Advantages and disadvantages of polyester:

1. High strength. Short fiber strength is 2.6-5.7cN/dtex, and high strength fiber strength is 5.6-8.0cN/dtex.

2. Good elasticity. Elastic close to wool, when elongation 5 ~ 6%, almost full recovery. Wrinkle resistance over other fibers, that is, the fabric does not wrinkle, good dimensional stability.

3. Heat resistance. Polyester has a high melting point and is the best of synthetic fabrics for heat resistance.

4. Good thermoplastic, poor fusible resistance. With thermoplastic, pleated skirt pleats can last long, but the fusible resistance is poor, easy to form holes in the face of soot, Mars and so on. Avoid contact with cigarette butts, sparks, etc.

5. Good wear resistance. Second only to nylon in synthetic fibers.

6. Good light resistance. Acrylic fiber is second only to synthetic fibers.

7. Corrosion resistance. Resistant to bleaching agents, oxidants, hydrocarbons, ketones, petroleum products and inorganic acids. Resistant to dilute alkali, not afraid of mildew, but hot alkali can make it decomposition. There are strong acid and alkali resistance, anti-ultraviolet ability.

8. Good color fastness, not easy to fade.

9. Poor moisture absorption, hot feeling, easy to wear static electricity, easy to stain dust, easy to pilling.

10. Good quick drying, good washing and wearing performance.

                   

Polyester type:

1. Polyester imitation silk fabric, which is made of round and special-section polyester filament or short fiber yarn with the appearance style of real silk, has the advantages of anti-wrinkle and ironing, and is quite popular among consumers. These varieties have the elegant draping, smooth, soft and pleasing to the eye of silk fabric. At the same time, they also have the crisp, wear-resistant, easy to wash and non-hot of polyester fabric. At the same time, the price is low.

2, polyester wool-like fabric from polyester filament as polyester stretch yarn, polyester network or various profiled polyester yarns as raw materials, or with long long polyester staple fiber and viscose after long acrylic blended yarn or fabric woven with wool style, respectively called worsted wool-like fabric and long wool-like fabric, the price is lower than the same kind of wool fabric products. It not only has the characteristics of full and fluffy feel and good elasticity of woolen fabric, but also has the characteristics of polyester firm and durable, easy to wash and dry, smooth and crisp, not easy to deformation, not easy to pilling and so on.

3, polyester imitation linen fabric, polyester or polyester/viscose strong twist yarn woven into plain or convex stripe fabric, with dry feel and appearance style of linen fabric. Not only rough appearance, feel dry, and wear comfortable, cool, therefore, very suitable for summer shirt, skirt clothing production.

4. Polyester imitation cotton fabric has the characteristics of soft and fluffy feel like cotton, hydrophilic and hygroscopic, and has the characteristics of wear resistance, high strength, easy washing and non-ironing of polyester fabric, and low price. Currently used for bedding, T-shirts, towels, etc.

5. Polyester blended fabric, besides weaving pure polyester fabric, there are many blended or interwoven products with various textile fibers, which make up the deficiency of pure polyester fabric and play a better wearing performance.

The above simple analysis of polyester and polyester fiber, understand the difference between them, it can be seen that there is no difference from the material, the difference is the name of the different, I hope that everyone in the future when buying is no longer about the name, can according to their own needs, to buy the right goods.