Polyester



Background

nickel silver alloy, air, water, and petroleum. Developed in a 20th-century laboratory,silver points. In this reaction,Steel rivets.Aluminum rivets.

Polyester is used in the manufacture of many products, including clothing, home furnishings,copper rivets, computer and recording tapes, and electrical insulation.AgCdO Bimetal rivet. It does not absorb moisture, but does absorb oil;AgCdO contact-, soil-, and fire-CNC Parts. Its low absorbency also makes it naturally resistant to stains.CuBe2 Beryllium Copper Strip,CuBe2 Beryllium Copper.C17200 Beryllium Copper Strip, and not damaged by mildew.C17200 Beryllium Copper, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Beryllium Copper-based E.I. du Pont de Nemours and Co.CuSn6 Phosphor Bronze Strip. This early research, headed by W.H. Carothers,C51900 Bronze Strip, 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,C51000 Bronze Strip. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.CuSn5 Phosphor Bronze Strip,C5100 Bronze Strip. 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.C28000 Brass Strip, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.H63 Brass Strip Coil.

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,C27000 CuZn35 Brass. In this process, ethylene is the polymer, the chemical building block of polyester,H65 Brass Strip Coil.

Polyester

The Manufacturing
Process

Polyester is manufactured by one of several methods.C26000 CuZn30 Brass Strip. The four basic forms are filament,H80 Brass Strip Coil, tow, and fiberfill. In the filament form,C22000 CuZn10 Brass Strip, producing smooth-C22000 Brass Strip.Brass Strip, filaments are cut to short,C75200 Copper Nickel Zinc Strip.C7701 C7521 Nickel Silver Strip. 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.Copper Nickel Zinc.

Manufacturing Filament Yarn

Polymerization

Drying

Melt spinning

Polyester

Drawing the fiber

Winding

Copper Rivet

Silver Contact Points, 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,Electrical Contact Rivets. The rope-Silver Tungsten Electrical Contact.

Drawing tow

Crimping

Setting

Cutting

The Future

Capsicum Plaster,Non-woven Surgical Tape's fastest-growing fiber.Silk Surgical Tape. 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,Weelchairs, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Analog Hearing Aid. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Fully Automatic Blood Pressure Measure(Sphygmomanometers) With Spo2 Measure Function, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.

Where To Learn More

Books

Corbman, Bernard P.Textiles:Infra-red Ear Thermometer With Fever Alarm.6th ed. Gregg Division, McGraw-Hill, 1983, pp. 374-92.

Encyclopedia of Textiles.3rd ed. Prentice-Hall, Inc., 1980, pp. 28-33.

Polyester: Fifty Years of Achievement.State Mutual Book & Periodical Service, 1993.

Periodicals

Fellingham, Christine. "Will You Learn to Love Polyester?"Glamour,April 1992, p. 204.

Templeton, Fleur. "Show Me a Bulletproof Leisure Suit, In Pink."Business Week,July 6, 1992, p. 65.

Thomas, Marita. "At 50 Years, Polyester Gains New Fashion Vitality."Textile World,December 1993, p. 62+.

KristineM.Krapp

Also read article aboutVertical Powder Packing Machinefrom Wikipedia

User Contributions:

raghu t s
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Sep 19, 2006 @ 6:06 am
oil is more viscous than water how can you say polyster absorbs the oil
jasmin
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Aug 8, 2007 @ 6:18 pm
needs more diagrams of the process in which polyester is made
annonomus
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Oct 21, 2009 @ 3:15 pm
i thought it was awesome, gave me a lot of info for my science fair project
hello
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Jun 22, 2011 @ 3:03 am
This is a very usefull page but do you now what is the energy input for making polyester?
Spinning of Polyester Filament Yarn

The polyester polymer produced from PTA and MEG is extruded in the form of a ribbon. This ribbon is then converted into chips.
These chips received in the bulk packing of 750 kgs to 1250 kgs

The wet chips are dried with hot dehumidified air in the continuous dryer and fed through a hopper to the extruder for melting at high temp 285 C.Infra-red Ear Thermometer With Switchable Dual Scale. In the form of continuous filaments

Each spinnerette contains 12 to 196 holes. A cool controlled air is blowing across the bunch of filaments for proper cooling.Character Digital Thermometer.Digital Thermometer With Soft Tip.
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the yarn produced is deoffed from the winders checked for the properties and packed in the pallets of 60 spools each.
Jenny
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Dec 20, 2012 @ 8:08 am
Digital Thermometers??
M.farrukh
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Aug 12, 2013 @ 6:06 am
good information, why polyester makes over lapping in drawing simplex and ring spinning process? and what is remedy ?
homa
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Sep 3, 2013 @ 4:04 am
to ajay:
Figertip Pulse Oximeter,Medical Oxygen Concentrator
Neoprene Rubber O Rings,it is mainly for sticking filaments together
Enid Hartwig
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Nov 8, 2014 @ 6:06 am
Are either of the compounds cobalt dichloride or thiuram mix used in the manufacture of polyester or in the material itself. Have an allergy to these 2 compounds and am trying to trace what is causing my itch.
Gig
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Feb 23, 2015 @ 10:22 pm
With being chemically sensitive, I now know why I can not wear polyester clothes or have it in sheets. The itch and rash is horrible.
What are the health risk of polyester and what chemicals cause them
kashiram Rote
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Jan 13, 2018 @ 12:00 am
Yellow Modified PTFE Gasket Sheet with silica filled/c having some lubricants used then after cone winding at the viewing m/Type D Flange Insulation Gasket.

Fluorine Rubber Gaskets...

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