Polyester

Background

Zebra Blinds ZB-03, air, water, and petroleum. Developed in a 20th-century laboratory,Zebra Blinds ZB-02. In this reaction,Zebra Blinds ZB-01.Zebra Blinds.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Blackout Blinds Ice cracks 1002, computer and recording tapes, and electrical insulation.Blackout Blinds Jacquard. It does not absorb moisture, but does absorb oil;Blackout Blinds Plain RB-P01/P02-, soil-, and fire-Blackout Blinds Ice cracks. Its low absorbency also makes it naturally resistant to stains.Blackout Blinds Ice cracks 1001,Blackout Blinds.Roller Blinds, and not damaged by mildew.EVA Carpet Indoor Playground Fitting, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Ocean Ball Indoor Playground Fitting-based E.I. du Pont de Nemours and Co.Wall Mat Indoor Playground Fitting. This early research, headed by W.H. Carothers,Globe Turntable 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,The Interesting Spider Tower Indoor Playground Equipment. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Trampoline Boxing Indoor Playground Equipment,Animal Roller 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.Roller 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.Ship 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,Animal Turnplate Indoor Playground Electric Equipment. In this process, ethylene is the polymer, the chemical building block of polyester,Snowman Turnplate Indoor Playground Electric Equipment.

The Manufacturing
Process

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

Drying

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

200-500 Square Meters Space Theme Indoor Playground

Castle 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,Children Small Indoor Playground. The rope-Children Driving School Playground.

Drawing tow

• 1 Newly-Sand Pond Indoor Playground.20-100 Square Meters Indoor Playground.

Crimping

• 2 Drawn tow is then fed into compression boxes,Large Comprehensive Indoor Playground, at a rate of 9-15 crimps per inch (3-6 per cm).Big Ball Pool Indoor Playground.

Setting

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

Cutting

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

The Future

Flange Insulation Kit Gaskets,Pipe Flange Insulation Kits's fastest-growing fiber.Phenolic Flange Insulation 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 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 Insulation 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.