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    Basic Knowledge Of Fabric Tutorial 2- What Is Polyester?

    2010/12/21 18:05:00 29

    Basic Knowledge Of Fabric

    Polyester is an important variety of synthetic fiber, and it is China's polyester.

    fibre

    The name of the goods.

    It is made of fine terephthalic acid (PTA) or two methyl terephthalate (DMT) and ethylene glycol (EG) as raw materials by esterification or pesterification and polycondensation of polybutylene terephthalate (PET), which is made by spinning and post-processing.


    Polyester is widely used for clothing and industrial products.

    Polyester has excellent shape setting performance.

    Polyester yarn or fabric formed after the formation of flat, fluffy shape or pleats and so on, in the use of many times washing, still can remain unchanged.


    Polyester words in English: (Textile)

    Polyester fiber


    What are the properties of polyester?


    1, high strength.

    Short fiber strength is 2.6 to 5.7cN/dtex and high strength fiber is 5.6 to 8.0cN/dtex.

    Because of its low moisture absorption, its wet strength is basically the same as that of dry state.

    The impact strength is 4 times higher than that of nylon and 20 times higher than that of viscose fiber.


    2. Good elasticity.

    The elasticity is close to wool, and when the elongation is 5% to 6%, it can almost completely recover.

    Wrinkle resistance is better than other fibers, that is, the fabric is not wrinkled and has good dimensional stability.

    The modulus of elasticity is 22 to 141cN/dtex, 2~3 times higher than that of nylon.


    3, good heat resistance.


    4. Polyester surface is smooth, internal molecules are arranged closely, and there is a lack of hydrophilic structure among molecules. Therefore, moisture regain is very small and moisture absorption is poor.


    5, good wear resistance.

    Wear resistance is second only to the best wear-resistant nylon, which is better than other natural fibers and synthetic fibers.


    6, good light resistance.

    Light resistance is second only to acrylic fiber.


    7, corrosion resistance.

    It is good for bleaching agents, oxidants, hydrocarbons, ketones, petroleum products and inorganic acids.

    Weak alkali resistant, not afraid of mold, but hot alkali can be decomposed.


    8, poor dyeing.


      

    Polyester fiber

    What kinds of varieties do you have?


    Polyester staple breeds include staple fiber, stretch yarn, textured yarn, decorative filament, industrial filament and various differential fibers.


    What kinds of polyester staple fiber are there?


    1. according to physical properties: high strength, low elongation, medium strength, middle extension, low strength, middle stretch, high modulus and Gao Qianggao modulus.


    2. according to post processing requirements, cotton type, wool type, hemp type and silk type are distinguished.


    3. according to use: clothing, cotton, decorative, industrial


    4. functional distinction: cationic dyeable, hygroscopic, flame retardant, coloured, pilling resistant and antistatic.


    5. according to the cross section of fiber: special shaped wire and hollow wire.


      

    Polyester filament

    What are the varieties?


    1. raw silk: non stretched wire (conventional spinning) (UDY), semi preoriented yarn (medium speed spinning) (MOY), preoriented yarn (high speed spinning) (POY), high oriented yarn (ultra high speed spinning) (HOY)


    2. stretch wire: stretch wire (low speed stretch wire) (DY), full stretch yarn (spinning stretch one-step method) (FDY), full thread extraction (spinning one step method) (FOY)


    3. textured yarns: conventional textured yarns (DY), stretched textured yarns (DTY), and air textured yarns (ATY).


    Modification of polyester fiber


    There are many kinds of polyester fiber fabrics. Besides knitted pure polyester fabrics, there are many products blended or interwoven with various kinds of textile fibers, which make up for the shortage of pure polyester fabric and play a better wearability.

    At present, polyester fabrics are developing towards natural fibers such as wool, silk, linen, imitation deer skin and other synthetic fibers.


    1. polyester silk fabric is made from round, profiled polyester filament or short fiber yarn. It has the advantages of low cost, wrinkle free and ironing. It is popular with consumers.

    Common varieties are polyester silk, polyester crepe, polyester satin, polyester, and polyester interlaced silk.

    These varieties of silk fabrics are elegant, pendulous, slippery, soft, and pleasing to the eye. At the same time, they also have the properties of crisp, wearable, easy to wash and ironing, which are both polyester fabrics. This is a kind of fabric that has poor moisture absorption and permeability and is not very cool. In order to overcome this shortcoming, more and more new polyester fabrics are available, such as high moisture absorbent polyester fabric.


    2. polyester wool like fabric is made from polyester filament such as polyester elastic yarn, polyester network yarn or various profiled polyester threads or blended with medium length polyester staple fiber and medium length viscose or medium long acrylic yarn.

    Woolen cloth

    The fabric of style is called worsted wool like fabric and medium wool like fabric respectively, and its price is lower than that of similar woollen fabrics.

    It has the characteristics of plump and bulky and good elasticity. It also has the characteristics of durable, easy to wash, fast dry, smooth and smooth, easy to deform, not easy to pilling and pilling.

    The common varieties include polyester shell serge, polyester shell fancy dacron, polyester elastic tweed, polyester web silk spinning wool fabric, polyester viscose medium long tweed, polyester nitrile hide bar and so on.


    3. polyester linen fabric is one of the most popular fabrics in the international clothing market. Weave polyester or polyester / viscose strong twist yarn into plain weave or convex stripe fabric. It has the dry feel and appearance style of the linen fabric.

    For example, the thin imitation of Merrick is not only rough and dry, but also comfortable and cool. Therefore, it is very suitable for making summer shirts and skirts.


    4. polyester imitation deer skin fabric is a new type.

    polyester fabric

    One of the fine textured polyester fabrics with fine denier or super fine denier polyester fibers, which is specially finely processed and formed on the fabric base cloth, is a fine knitted fabric with short fuzz. It is called imitation deer skin fabric, usually based on nonwovens, woven fabrics and knitted fabrics.

    It has the characteristics of soft texture, fine fluffy, elastic, rich and durable handle.

    There are three kinds of artificial deer skin, artificial high quality deer skin and artificial deer skin.

    Suitable for women's clothing, senior dress, jackets, suits and so on.

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