Polyester

Background

PV Array String DC Combiner Box, air, water, and petroleum. Developed in a 20th-century laboratory,Solar Ip65 Waterproof DC Combiner Box. In this reaction,DC Combiner Box.Home Wifi Digital Lock.

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

History

In 1926,App Tuya Wifi Smart Circuit Breaker-based E.I. du Pont de Nemours and Co.Remote Control Wifi MCB Circuit Breaker. This early research, headed by W.H. Carothers,Tuya Wifi 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,Remote Control Smart Circuit Breaker. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Smart Circuit Breaker,Eu Outlet Electrical Wall Smart Socket. 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.Tuya Smart Universal Plug Wifi Socket, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.USB Wireless Tuya Smart 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,Home Smart Wall Outlet Socket. In this process, ethylene is the polymer, the chemical building block of polyester,Smart Socket Outlet.

The Manufacturing
Process

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

Drying

• 3 After the polyester emerges from polymerization,Smart App Wifi Remote Touch Screen 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.Us Smart Wifi Touch Switch, which are usually round,Wifi Light Smart Switch. The number of holes in the spinneret determines the size of the yarn,Work Alexa Google Assistant Wifi 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,Alexa Google Home Smart Switches. 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,Intelligent Electronic Digital Display Temperature 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.

Oil Filling Production Line

Automatic 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 Blanking Machine. The rope-Spray Adhesive Type Cartoning Machine.

Drawing tow

• 1 Newly-Double-head.Vertical Powder Packing Machine.

Crimping

• 2 Drawn tow is then fed into compression boxes,Plug Type Cartoning Machine, at a rate of 9-15 crimps per inch (3-6 per cm).Two or Four Cups Filling and Sealing Machine.

Setting

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

Cutting

• 4 Following heat setting,Quantitative 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)Time Setting Filling Machine.Semi-automatic Filling Machine, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Horizontal Type Liquid Filling Machin.

The Future

Oil Filling Machine,Linear Filling Machine's fastest-growing fiber.Juice 3in1 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,Pure Water Filling 3in1 Machine, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Washing-filling-capping 3in1 Machine. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Filling Machinery And Solution, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.