Polyester

Background

100%Polyester Soft Chenille Fabric For Curtain, air, water, and petroleum. Developed in a 20th-century laboratory,Jacquard Curtain. In this reaction,JBL Two Faced complete Blackout Curtain Fabric For Bedroom.Automatic Fiber High Speed Rapier Machine.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Automatic Fabric Shuttle Changing Loom, computer and recording tapes, and electrical insulation.Shuttle Loom Machine. It does not absorb moisture, but does absorb oil;Shuttle Loom Automatic Machine-, soil-, and fire-Shuttle Weaving Loom. Its low absorbency also makes it naturally resistant to stains.Velveteen Automatic Shuttle Changing Loom,Shuttleless Rapier Loom Machine.GA736 Shuttleless Rapier Loom Machine, and not damaged by mildew.Textile Rapier Loom, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Weaving Machine Fiber Rapier Loom-based E.I. du Pont de Nemours and Co.Weaving Loom. This early research, headed by W.H. Carothers,Rapier Loom In Weaving Machines, 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,GA736 Weaving Machine. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Rapier Weaving Machine,Rapier Machine. 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.Medical Mask Machine, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Fabric Mask Machine.

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,Nonvoven Mask Machine. In this process, ethylene is the polymer, the chemical building block of polyester,Medical Mask Making Machine.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Mask Making Machine. The four basic forms are filament,Face Mask Maker Machine, tow, and fiberfill. In the filament form,Face Mask Machine, producing smooth-Fully Automatic Disposable Non Woven Face Mask Making Machine.Disposable Medical Protective Auto Mask Machine, filaments are cut to short,Medical Masks Making Machine.Disposable Face Medical Masks Making Machine. 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.Surgical Mask Machine.

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-Disposable Medical Protective Mask Machine,Gauze Weaving Loom, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Towel Weaving Loom. 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.LCD Video Wall, which are usually round,Touch Screen Displays. The number of holes in the spinneret determines the size of the yarn,22 Inch Touch Inquiry Displays.
• 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,Touch Inquiry Displays. 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,Kiosk.
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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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24 Inch Solar Powered TV, 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,Solar Powered TV. The rope-Solar TVs.

Drawing tow

• 1 Newly-43 Inch Fitness Mirror Display.Fitness Mirror.

Crimping

• 2 Drawn tow is then fed into compression boxes,Yacht TV, at a rate of 9-15 crimps per inch (3-6 per cm).Marine TV For Sale.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Marine TV.19 Inch Caravan TV.

Cutting

• 4 Following heat setting,24 Inch Caravan TV. 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)Caravan TV DVD Combo.24 Inch RV TV, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Caravan TVs.

The Future

Sauna Room TV,32 Inch Batroom TV Mirror's fastest-growing fiber.43 Inch Batroom TV Mirror. 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,Bathroom TV Tempered Glass, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Bathroom TVs. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Outdoor TV Enclosure 55 Inch, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.