Polyester

Background

SF021, air, water, and petroleum. Developed in a 20th-century laboratory,Accessories For Blinds Other TP-01. In this reaction,Accessories For Blinds Other TP-02.Accessories For Blinds Bottom weight BW-P3.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Accessories For Blinds Bottom weight BW-P2, computer and recording tapes, and electrical insulation.Accessories For Blinds Bottom weight BW-A4. It does not absorb moisture, but does absorb oil;Accessories For Blinds Bottom weight BW-A3-, soil-, and fire-Accessories For Blinds Bottom weight BW-A2. Its low absorbency also makes it naturally resistant to stains.Accessories For Blinds Bottom weight BW-A1,Accessories For Blinds Bracket BR-06.Accessories For Blinds Bracket BR-05, and not damaged by mildew.Accessories For Blinds Bracket BR-03, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Accessories For Blinds Chain set CHA-02-based E.I. du Pont de Nemours and Co.Accessories For Blinds Top cover TC-A1. This early research, headed by W.H. Carothers,Accessories For 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,Shower curtain SHW-02. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Shower curtain,Push curtain BL-PSH01. 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.Push curtain BL-PSH02, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Push curtain.

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,Sunscreen Blinds SS-01. In this process, ethylene is the polymer, the chemical building block of polyester,Zebra Blinds ZB-05.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Zebra Blinds ZB-03. The four basic forms are filament,Zebra Blinds ZB-02, tow, and fiberfill. In the filament form,Zebra Blinds ZB-01, producing smooth-Zebra Blinds.Blackout Blinds Ice cracks 1002, filaments are cut to short,Blackout Blinds Jacquard.Blackout Blinds Plain RB-P01/P02. 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.Blackout Blinds Ice cracks.

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-Blackout Blinds Ice cracks 1001,Blackout Blinds, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Roller Blinds. 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.EVA Carpet Indoor Playground Fitting, which are usually round,Ocean Ball Indoor Playground Fitting. The number of holes in the spinneret determines the size of the yarn,Wall Mat Indoor Playground Fitting.
• 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,Globe Turntable Indoor Playground 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,The Interesting Spider Tower Indoor Playground Equipment.
• Trampoline Boxing Indoor Playground Equipment,Animal Roller Indoor Playground Electric Equipment. Also,Roller Indoor Playground Electric Equipment,Ship Turnplate Indoor Playground Electric Equipment.

Winding

• 8 After the polyester yarn is drawn, it is wound on large bobbins or flat-wound packages, ready to be woven into material.

Animal Turnplate Indoor Playground Electric Equipment

Snowman Turnplate 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,Watermelon Turnplate Indoor Playground Electric Equipment. The rope-Turnplate Indoor Playground Electric Equipment.

Drawing tow

• 1 Newly-Animal Turntable Indoor Playground Electric Equipment.Motorcycle Turntable Indoor Playground Electric Equipment.

Crimping

• 2 Drawn tow is then fed into compression boxes,Robot Turntable Indoor Playground Electric Equipment, at a rate of 9-15 crimps per inch (3-6 per cm).Aircraft Turntable Indoor Playground Electric Equipment.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Horse Turntable Indoor Playground Electric Equipment.Bicycle Turntable Indoor Playground Electric Equipment.

Cutting

• 4 Following heat setting,Indoor Playground Electric Equipment. 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)Children Trampoline Indoor Playground.Kids Trampoline Indoor Playground, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Adult Trampoline Indoor Playground.

The Future

200-300 Square Meters Forest Theme Indoor Playground,300-500 Square Meters Forest Theme Indoor Playground's fastest-growing fiber.100-200 Square Meters Colorful 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,100-200 Square Meters British Theme Indoor Playground, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,100-200 Square Meters Ocean Theme Indoor Playground. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.100-200 Square Meters Macaron Theme 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.