Polyester

Background

Zebra Blinds ZB-05, air, water, and petroleum. Developed in a 20th-century laboratory,Zebra Blinds ZB-03. In this reaction,Zebra Blinds ZB-02.Zebra Blinds ZB-01.

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

History

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

The Manufacturing
Process

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

Drying

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

200-500 Square Meters Space 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,Castle Theme Indoor Playground. The rope-Children Small Indoor Playground.

Drawing tow

• 1 Newly-Children Driving School Playground.Sand Pond Indoor Playground.

Crimping

• 2 Drawn tow is then fed into compression boxes,20-100 Square Meters Indoor Playground, at a rate of 9-15 crimps per inch (3-6 per cm).Large Comprehensive Indoor Playground.

Setting

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

Cutting

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

The Future

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