Polyester

Background

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

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

History

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

The Manufacturing
Process

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

Drying

• 3 After the polyester emerges from polymerization,LCD Video Wall. 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.Touch Screen Displays, which are usually round,22 Inch Touch Inquiry Displays. The number of holes in the spinneret determines the size of the yarn,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,Kiosk. 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,Low Power Consumption Solar TV.
• 24 Inch Paygo Solar TV,32 Inch Paygo Solar TV. Also,40 Inch Paygo Solar TV,Paygo Solar TV.

Winding

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

24 Inch Solar Powered TV

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 TVs. The rope-43 Inch Fitness Mirror Display.

Drawing tow

• 1 Newly-Fitness Mirror.Yacht TV.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)19 Inch Caravan TV.24 Inch Caravan TV.

Cutting

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

The Future

32 Inch Batroom TV Mirror,43 Inch Batroom TV Mirror's fastest-growing fiber.Bathroom TV Tempered Glass. 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 TVs, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Outdoor TV Enclosure 55 Inch. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Outdoor TV Enclosure 65 Inch, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.