Polyester

Background

Zebra Blinds ZB-01, air, water, and petroleum. Developed in a 20th-century laboratory,Zebra Blinds. In this reaction,Blackout Blinds Ice cracks 1002.Blackout Blinds Jacquard.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Blackout Blinds Plain RB-P01/P02, computer and recording tapes, and electrical insulation.Blackout Blinds Ice cracks. It does not absorb moisture, but does absorb oil;Blackout Blinds Ice cracks 1001-, soil-, and fire-Blackout Blinds. Its low absorbency also makes it naturally resistant to stains.Roller Blinds,EVA Carpet Indoor Playground Fitting.Ocean Ball Indoor Playground Fitting, and not damaged by mildew.Wall Mat Indoor Playground Fitting, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Globe Turntable Indoor Playground Equipment-based E.I. du Pont de Nemours and Co.The Interesting Spider Tower Indoor Playground Equipment. This early research, headed by W.H. Carothers,Trampoline Boxing Indoor Playground Equipment, 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,Animal Roller Indoor Playground Electric Equipment. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Roller Indoor Playground Electric Equipment,Ship Turnplate Indoor Playground Electric Equipment. 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.Animal Turnplate Indoor Playground Electric Equipment, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Snowman Turnplate Indoor Playground Electric Equipment.

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,Watermelon Turnplate Indoor Playground Electric Equipment. In this process, ethylene is the polymer, the chemical building block of polyester,Turnplate Indoor Playground Electric Equipment.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Animal Turntable Indoor Playground Electric Equipment. The four basic forms are filament,Motorcycle Turntable Indoor Playground Electric Equipment, tow, and fiberfill. In the filament form,Robot Turntable Indoor Playground Electric Equipment, producing smooth-Aircraft Turntable Indoor Playground Electric Equipment.Horse Turntable Indoor Playground Electric Equipment, filaments are cut to short,Bicycle Turntable Indoor Playground Electric Equipment.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.Children Trampoline Indoor Playground.

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-Kids Trampoline Indoor Playground,Adult Trampoline Indoor Playground, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,200-300 Square Meters Forest Theme Indoor Playground. 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.300-500 Square Meters Forest Theme Indoor Playground, which are usually round,100-200 Square Meters Colorful Theme Indoor Playground. The number of holes in the spinneret determines the size of the yarn,100-200 Square Meters British Theme Indoor Playground.
• 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,100-200 Square Meters Ocean Theme Indoor Playground. 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,100-200 Square Meters Macaron Theme Indoor Playground.
• 300-500 Square Meters Macaron Theme Indoor Playground,100-200 Square Meters Space Theme Indoor Playground. Also,200-500 Square Meters Space Theme Indoor Playground,Castle Theme Indoor Playground.

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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Children Driving School 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,Sand Pond Indoor Playground. The rope-20-100 Square Meters Indoor Playground.

Drawing tow

• 1 Newly-Large Comprehensive Indoor Playground.Big Ball Pool Indoor Playground.

Crimping

• 2 Drawn tow is then fed into compression boxes,High-rise Indoor Playground, at a rate of 9-15 crimps per inch (3-6 per cm).Theme Indoor Playground.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Indoor Playground.High Temperature Flange Insulation Kits.

Cutting

• 4 Following heat setting,Flange Insulation Kit Gasket. 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)Flange Bolt Insulation Kits.Flange Insulation Kit Gaskets, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Pipe Flange Insulation Kits.

The Future

Phenolic Flange Insulation Kits,Flange Insulation Kits's fastest-growing fiber.Piping Flange Isolating Gaskets and Kits. 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,Flange Insulation Gasket Kits, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Piping Flange Isolating Gaskets and Kits. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Flange Isolating Gasket Kits, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.