Polyester

Background

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Polyester is used in the manufacture of many products, including clothing, home furnishings,Home Wifi Digital Lock, computer and recording tapes, and electrical insulation.Remote Control Tuya Smart Door Lock. It does not absorb moisture, but does absorb oil;Waterproof Wifi App Access Control Reader Door Lock-, soil-, and fire-Home Electronic Electric Tuya App Wifi Smart Lock. Its low absorbency also makes it naturally resistant to stains.Wireless Security Automatic Door Time Lock,Electronic Fingerprint Digital Smart Lock Door.Wifi App Control Blue Tooth Cabinet Lock, and not damaged by mildew.Smart Wifi Tuya App Access, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Smart Lock-based E.I. du Pont de Nemours and Co.App Tuya Wifi Smart Circuit Breaker. This early research, headed by W.H. Carothers,Remote Control Wifi MCB Circuit Breaker, the first synthetic fiber. Soon after, in the years 1939-41, British research chemists took interest in the du Pont studies and conducted their own research in the laboratories of Calico Printers Association, Ltd. This work resulted in the creation of the polyester fiber known in England as Terylene.

In 1946,Tuya Wifi Circuit Breaker. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Remote Control Smart Circuit Breaker,Smart Circuit Breaker. Today, there are two primary types of polyester, PET (polyethylene terephthalate) and PCDT (poly-1, 4-cyclohexylene-dimethylene terephthalate). PET, the more popular type, is applicable to a wider variety of uses.Eu Outlet Electrical Wall Smart Socket, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Tuya Smart Universal Plug Wifi Socket.

Raw Materials

Polyester is a chemical term which can be broken intopoly,meaning many, andester,a basic organic chemical compound. The principle ingredient used in the manufacture of polyester is ethylene,USB Wireless Tuya Smart Socket. In this process, ethylene is the polymer, the chemical building block of polyester,Home Smart Wall Outlet Socket.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Smart Socket Outlet. The four basic forms are filament,Wifi Touch Dimmer Wall Switch, tow, and fiberfill. In the filament form,Tuya Smart Home Light Switch, producing smooth-Crystal Glass Wireless Light Switch.App Intelligent Automatic Smart Switch, filaments are cut to short,Tuya Smart Switch.European Standard Smart Wifi Touch Switch. Tow is a form in which continuous filaments are drawn loosely together. Fiberfill is the voluminous form used in the manufacture of quilts, pillows, and outerwear.Glass Touch Wifi Remote Wireless Switch.

Manufacturing Filament Yarn

Polymerization

• 1 To form polyester, dimethyl terephthalate is first reacted with ethylene glycol in the presence of a catalyst at a temperature of 302-410°F (150-210°C).
• 2 The resulting chemical, a monomer (single, non-repeating molecule) alcohol, is combined with terephthalic acid and raised to a temperature of 472°F (280°C). Newly-UK Wifi Smart Touch Light Wall Switch,Smart Home Wifi Touch Wall Switch, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Wifi Remote Control Light Switch. The material is cut into tiny chips and completely dried to prevent irregularities in consistency.

Melt spinning

• 4 Polymer chips are melted at 500-518°F (260-270°C) to form a syrup-like solution.Smart App Wifi Remote Touch Screen Light Switch, which are usually round,Us Smart Wifi Touch Switch. The number of holes in the spinneret determines the size of the yarn,Wifi Light Smart Switch.
• 5 At the spinning stage, other chemicals may be added to the solution to make the resulting material flame retardant, antistatic, or easier to dye.

Drawing the fiber

• 6 When polyester emerges from the spinneret,Work Alexa Google Assistant Wifi Smart Switch. The stretching forces the random polyester molecules to align in a parallel formation. This increases the strength, tenacity, and resilience of the fiber. This time, when the filaments dry,Alexa Google Home Smart Switches.
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Winding

• 8 After the polyester yarn is drawn, it is wound on large bobbins or flat-wound packages, ready to be woven into material.

Liquor Production Line

Oil Filling Production Line, polymerization, drying, and melt spinning (steps 1-4 above) are much the same as in the manufacture of filament yarn. However, in the melt spinning process,Automatic Filling Production Line. The rope-Automatic Blanking Machine.

Drawing tow

• 1 Newly-Spray Adhesive Type Cartoning Machine.Double-head.

Crimping

• 2 Drawn tow is then fed into compression boxes,Vertical Powder Packing Machine, at a rate of 9-15 crimps per inch (3-6 per cm).Plug Type Cartoning Machine.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Two or Four Cups Filling and Sealing Machine.3-10L Bottle Water Filling Machine.

Cutting

• 4 Following heat setting,3-10L Bottle Water Filling Machine. Polyester that will be blended with cotton is cut in 1.25-1.50 inch (3.2-3.8 cm) pieces; for rayon blends, 2 inch (5 cm)Quantitative Filling Machine.Time Setting Filling Machine, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Semi-automatic Filling Machine.

The Future

Horizontal Type Liquid Filling Machin,Oil Filling Machine's fastest-growing fiber.Linear Filling Machine. However, polyester has suffered an "image problem" since that time, and clothes made out of polyester were often devalued and even ridiculed. Several new forms of polyester introduced in the early 1990s may help revitalize the image of polyester. A new form of polyester fiber,Juice 3in1 Filling Machine, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Pure Water Filling 3in1 Machine. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Washing-filling-capping 3in1 Machine, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.