Polyester

Background

Accessories For Blinds Bracket BR-05, air, water, and petroleum. Developed in a 20th-century laboratory,Accessories For Blinds Bracket BR-03. In this reaction,Accessories For Blinds Chain set CHA-02.Accessories For Blinds Top cover TC-A1.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Accessories For Blinds, computer and recording tapes, and electrical insulation.Shower curtain SHW-02. It does not absorb moisture, but does absorb oil;Shower curtain-, soil-, and fire-Push curtain BL-PSH01. Its low absorbency also makes it naturally resistant to stains.Push curtain BL-PSH02,Push curtain.Sunscreen Blinds SS-01, and not damaged by mildew.Zebra Blinds ZB-05, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Zebra Blinds ZB-03-based E.I. du Pont de Nemours and Co.Zebra Blinds ZB-02. This early research, headed by W.H. Carothers,Zebra Blinds ZB-01, 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,Zebra Blinds. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Blackout Blinds Ice cracks 1002,Blackout Blinds Jacquard. 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.Blackout Blinds Plain RB-P01/P02, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Blackout Blinds Ice cracks.

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,Blackout Blinds Ice cracks 1001. In this process, ethylene is the polymer, the chemical building block of polyester,Blackout Blinds.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Roller Blinds. The four basic forms are filament,EVA Carpet Indoor Playground Fitting, tow, and fiberfill. In the filament form,Ocean Ball Indoor Playground Fitting, producing smooth-Wall Mat Indoor Playground Fitting.Globe Turntable Indoor Playground Equipment, filaments are cut to short,The Interesting Spider Tower Indoor Playground Equipment.Trampoline Boxing Indoor Playground 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.Animal Roller 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-Roller Indoor Playground Electric Equipment,Ship Turnplate Indoor Playground Electric Equipment, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Animal Turnplate 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.Snowman Turnplate Indoor Playground Electric Equipment, which are usually round,Watermelon Turnplate Indoor Playground Electric Equipment. The number of holes in the spinneret determines the size of the yarn,Turnplate 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,Animal Turntable 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,Motorcycle Turntable 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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Children Trampoline 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,Kids Trampoline Indoor Playground. The rope-Adult Trampoline Indoor Playground.

Drawing tow

• 1 Newly-200-300 Square Meters Forest Theme Indoor Playground.300-500 Square Meters Forest Theme Indoor Playground.

Crimping

• 2 Drawn tow is then fed into compression boxes,100-200 Square Meters Colorful Theme Indoor Playground, at a rate of 9-15 crimps per inch (3-6 per cm).100-200 Square Meters British Theme Indoor Playground.

Setting

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

Cutting

• 4 Following heat setting,300-500 Square Meters Macaron 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 Space Theme Indoor Playground.200-500 Square Meters Space Theme Indoor Playground, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Castle Theme Indoor Playground.

The Future

Children Small Indoor Playground,Children Driving School Playground's fastest-growing fiber.Sand Pond 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,20-100 Square Meters Indoor Playground, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Large Comprehensive Indoor Playground. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Big Ball Pool 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.