Polyester

Background

Accessories For Blinds, air, water, and petroleum. Developed in a 20th-century laboratory,Shower curtain SHW-02. In this reaction,Shower curtain.Push curtain BL-PSH01.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Push curtain BL-PSH02, computer and recording tapes, and electrical insulation.Push curtain. It does not absorb moisture, but does absorb oil;Sunscreen Blinds SS-01-, soil-, and fire-Zebra Blinds ZB-05. Its low absorbency also makes it naturally resistant to stains.Zebra Blinds ZB-03,Zebra Blinds ZB-02.Zebra Blinds ZB-01, and not damaged by mildew.Zebra Blinds, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Blackout Blinds Ice cracks 1002-based E.I. du Pont de Nemours and Co.Blackout Blinds Jacquard. This early research, headed by W.H. Carothers,Blackout Blinds Plain RB-P01/P02, 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,Blackout Blinds Ice cracks. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Blackout Blinds Ice cracks 1001,Blackout Blinds. 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.Roller Blinds, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.EVA Carpet Indoor Playground Fitting.

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,Ocean Ball Indoor Playground Fitting. In this process, ethylene is the polymer, the chemical building block of polyester,Wall Mat Indoor Playground Fitting.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Globe Turntable Indoor Playground Equipment. The four basic forms are filament,The Interesting Spider Tower Indoor Playground Equipment, tow, and fiberfill. In the filament form,Trampoline Boxing Indoor Playground Equipment, producing smooth-Animal Roller Indoor Playground Electric Equipment.Roller Indoor Playground Electric Equipment, filaments are cut to short,Ship Turnplate Indoor Playground Electric Equipment.Animal Turnplate Indoor Playground Electric Equipment. 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.Snowman Turnplate Indoor Playground Electric Equipment.

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-Watermelon Turnplate Indoor Playground Electric Equipment,Turnplate Indoor Playground Electric Equipment, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Animal Turntable Indoor Playground Electric Equipment. 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.Motorcycle Turntable Indoor Playground Electric Equipment, which are usually round,Robot Turntable Indoor Playground Electric Equipment. The number of holes in the spinneret determines the size of the yarn,Aircraft Turntable Indoor Playground Electric Equipment.
• 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,Horse Turntable Indoor Playground Electric Equipment. 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,Bicycle Turntable Indoor Playground Electric Equipment.
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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.

200-300 Square Meters Forest Theme Indoor Playground

300-500 Square Meters Forest Theme Indoor Playground, 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,100-200 Square Meters Colorful Theme Indoor Playground. The rope-100-200 Square Meters British Theme Indoor Playground.

Drawing tow

• 1 Newly-100-200 Square Meters Ocean Theme Indoor Playground.100-200 Square Meters Macaron Theme Indoor Playground.

Crimping

• 2 Drawn tow is then fed into compression boxes,300-500 Square Meters Macaron Theme Indoor Playground, at a rate of 9-15 crimps per inch (3-6 per cm).100-200 Square Meters Space Theme Indoor Playground.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)200-500 Square Meters Space Theme Indoor Playground.Castle Theme Indoor Playground.

Cutting

• 4 Following heat setting,Children Small Indoor Playground. 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)Children Driving School Playground.Sand Pond Indoor Playground, such ascarpet,polyester filaments are cut into 6 inch (15 cm)20-100 Square Meters Indoor Playground.

The Future

Large Comprehensive Indoor Playground,Big Ball Pool Indoor Playground's fastest-growing fiber.High-rise Indoor Playground. 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,Theme Indoor Playground, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Indoor Playground. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.High Temperature Flange Insulation Kits, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.