Polyester

Background

Push curtain BL-PSH02, air, water, and petroleum. Developed in a 20th-century laboratory,Push curtain. In this reaction,Sunscreen Blinds SS-01.Zebra Blinds ZB-05.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Zebra Blinds ZB-03, computer and recording tapes, and electrical insulation.Zebra Blinds ZB-02. It does not absorb moisture, but does absorb oil;Zebra Blinds ZB-01-, soil-, and fire-Zebra Blinds. Its low absorbency also makes it naturally resistant to stains.Blackout Blinds Ice cracks 1002,Blackout Blinds Jacquard.Blackout Blinds Plain RB-P01/P02, and not damaged by mildew.Blackout Blinds Ice cracks, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Blackout Blinds Ice cracks 1001-based E.I. du Pont de Nemours and Co.Blackout Blinds. This early research, headed by W.H. Carothers,Roller Blinds, 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,EVA Carpet Indoor Playground Fitting. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Ocean Ball Indoor Playground Fitting,Wall Mat Indoor Playground Fitting. 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.Globe Turntable Indoor Playground Equipment, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.The Interesting Spider Tower Indoor Playground 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,Trampoline Boxing Indoor Playground Equipment. In this process, ethylene is the polymer, the chemical building block of polyester,Animal Roller Indoor Playground Electric Equipment.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Roller Indoor Playground Electric Equipment. The four basic forms are filament,Ship Turnplate Indoor Playground Electric Equipment, tow, and fiberfill. In the filament form,Animal Turnplate Indoor Playground Electric Equipment, producing smooth-Snowman Turnplate Indoor Playground Electric Equipment.Watermelon Turnplate Indoor Playground Electric Equipment, filaments are cut to short,Turnplate Indoor Playground Electric Equipment.Animal Turntable 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.Motorcycle Turntable 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-Robot Turntable Indoor Playground Electric Equipment,Aircraft Turntable Indoor Playground Electric Equipment, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Horse 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.Bicycle Turntable Indoor Playground Electric Equipment, which are usually round,Indoor Playground Electric Equipment. The number of holes in the spinneret determines the size of the yarn,Children Trampoline 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,Kids Trampoline 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,Adult Trampoline Indoor Playground.
• 200-300 Square Meters Forest Theme Indoor Playground,300-500 Square Meters Forest Theme Indoor Playground. Also,100-200 Square Meters Colorful Theme Indoor Playground,100-200 Square Meters British 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.

100-200 Square Meters Ocean Theme Indoor Playground

100-200 Square Meters Macaron 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,300-500 Square Meters Macaron Theme Indoor Playground. The rope-100-200 Square Meters Space Theme Indoor Playground.

Drawing tow

• 1 Newly-200-500 Square Meters Space Theme Indoor Playground.Castle Theme Indoor Playground.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Sand Pond Indoor Playground.20-100 Square Meters Indoor Playground.

Cutting

• 4 Following heat setting,Large Comprehensive 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)Big Ball Pool Indoor Playground.High-rise Indoor Playground, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Theme Indoor Playground.

The Future

Indoor Playground,High Temperature Flange Insulation Kits's fastest-growing fiber.Flange Insulation Kit Gasket. 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 Bolt Insulation Kits, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Flange Insulation Kit Gaskets. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Pipe 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.