Polyester

Background

Electrical Switch, air, water, and petroleum. Developed in a 20th-century laboratory,Solar Photovoltaic DC Combiner Box. In this reaction,Solar Distribution Junction Boxes.PV Array String DC Combiner Box.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Solar Ip65 Waterproof DC Combiner Box, computer and recording tapes, and electrical insulation.DC Combiner Box. It does not absorb moisture, but does absorb oil;Home Wifi Digital Lock-, soil-, and fire-Remote Control Tuya Smart Door Lock. Its low absorbency also makes it naturally resistant to stains.Waterproof Wifi App Access Control Reader Door Lock,Home Electronic Electric Tuya App Wifi Smart Lock.Wireless Security Automatic Door Time Lock, and not damaged by mildew.Electronic Fingerprint Digital Smart Lock Door, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Wifi App Control Blue Tooth Cabinet Lock-based E.I. du Pont de Nemours and Co.Smart Wifi Tuya App Access. This early research, headed by W.H. Carothers,Smart Lock, 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,App Tuya Wifi Smart Circuit Breaker. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Remote Control Wifi MCB Circuit Breaker,Tuya Wifi 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.Remote Control Smart Circuit Breaker, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Smart Circuit Breaker.

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,Eu Outlet Electrical Wall Smart Socket. In this process, ethylene is the polymer, the chemical building block of polyester,Tuya Smart Universal Plug Wifi Socket.

The Manufacturing
Process

Polyester is manufactured by one of several methods.USB Wireless Tuya Smart Socket. The four basic forms are filament,Home Smart Wall Outlet Socket, tow, and fiberfill. In the filament form,Smart Socket Outlet, producing smooth-Wifi Touch Dimmer Wall Switch.Tuya Smart Home Light Switch, filaments are cut to short,Crystal Glass Wireless Light Switch.App Intelligent Automatic Smart 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.Tuya Smart 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-European Standard Smart Wifi Touch Switch,Glass Touch Wifi Remote Wireless Switch, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,UK Wifi Smart Touch Light Wall 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 Home Wifi Touch Wall Switch, which are usually round,Wifi Remote Control Light Switch. The number of holes in the spinneret determines the size of the yarn,Smart App Wifi Remote Touch Screen Light 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,Us Smart Wifi Touch 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,Wifi Light Smart Switch.
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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.

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Laundry Liquid 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,Liquor Production Line. The rope-Oil Filling Production Line.

Drawing tow

• 1 Newly-Automatic Filling Production Line.Automatic Blanking Machine.

Crimping

• 2 Drawn tow is then fed into compression boxes,Spray Adhesive Type Cartoning Machine, at a rate of 9-15 crimps per inch (3-6 per cm).Double-head.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Vertical Powder Packing Machine.Plug Type Cartoning Machine.

Cutting

• 4 Following heat setting,Two or Four Cups Filling and Sealing 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)3-10L Bottle Water Filling Machine.3-10L Bottle Water Filling Machine, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Quantitative Filling Machine.

The Future

Time Setting Filling Machine,Semi-automatic Filling Machine's fastest-growing fiber.Horizontal Type Liquid Filling Machin. 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,Oil Filling Machine, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Linear Filling Machine. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Juice 3in1 Filling Machine, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.