Polyester

Background

Accessories For Blinds Bottom weight BW-A4, air, water, and petroleum. Developed in a 20th-century laboratory,Accessories For Blinds Bottom weight BW-A3. In this reaction,Accessories For Blinds Bottom weight BW-A2.Accessories For Blinds Bottom weight BW-A1.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Accessories For Blinds Bracket BR-06, computer and recording tapes, and electrical insulation.Accessories For Blinds Bracket BR-05. It does not absorb moisture, but does absorb oil;Accessories For Blinds Bracket BR-03-, soil-, and fire-Accessories For Blinds Chain set CHA-02. Its low absorbency also makes it naturally resistant to stains.Accessories For Blinds Top cover TC-A1,Accessories For Blinds.Shower curtain SHW-02, and not damaged by mildew.Shower curtain, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Push curtain BL-PSH01-based E.I. du Pont de Nemours and Co.Push curtain BL-PSH02. This early research, headed by W.H. Carothers,Push curtain, 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,Sunscreen Blinds SS-01. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Zebra Blinds ZB-05,Zebra Blinds ZB-03. 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.Zebra Blinds ZB-02, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Zebra Blinds ZB-01.

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,Zebra Blinds. In this process, ethylene is the polymer, the chemical building block of polyester,Blackout Blinds Ice cracks 1002.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Blackout Blinds Jacquard. The four basic forms are filament,Blackout Blinds Plain RB-P01/P02, tow, and fiberfill. In the filament form,Blackout Blinds Ice cracks, producing smooth-Blackout Blinds Ice cracks 1001.Blackout Blinds, filaments are cut to short,Roller Blinds.EVA Carpet Indoor Playground Fitting. 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.Ocean Ball Indoor Playground Fitting.

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-Wall Mat Indoor Playground Fitting,Globe Turntable Indoor Playground Equipment, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,The Interesting Spider Tower Indoor Playground 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.Trampoline Boxing Indoor Playground Equipment, which are usually round,Animal Roller Indoor Playground Electric Equipment. The number of holes in the spinneret determines the size of the yarn,Roller 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,Ship Turnplate 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,Animal Turnplate 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.

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Robot Turntable Indoor Playground Electric Equipment, 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,Aircraft Turntable Indoor Playground Electric Equipment. The rope-Horse Turntable Indoor Playground Electric Equipment.

Drawing tow

• 1 Newly-Bicycle Turntable Indoor Playground Electric Equipment.Indoor Playground Electric Equipment.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Adult Trampoline Indoor Playground.200-300 Square Meters Forest Theme Indoor Playground.

Cutting

• 4 Following heat setting,300-500 Square Meters Forest 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)100-200 Square Meters Colorful Theme Indoor Playground.100-200 Square Meters British Theme Indoor Playground, such ascarpet,polyester filaments are cut into 6 inch (15 cm)100-200 Square Meters Ocean Theme Indoor Playground.

The Future

100-200 Square Meters Macaron Theme Indoor Playground,300-500 Square Meters Macaron Theme Indoor Playground's fastest-growing fiber.100-200 Square Meters Space Theme 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,200-500 Square Meters Space Theme Indoor Playground, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Castle Theme Indoor Playground. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Children Small Indoor Playground, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.