Polyester

Background

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

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

History

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

The Manufacturing
Process

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

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-Towel Weaving Loom,LCD Video Wall, is extruded through a slot to form long ribbons.

Drying

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

Solar Powered TV

Solar TVs, 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,43 Inch Fitness Mirror Display. The rope-Fitness Mirror.

Drawing tow

• 1 Newly-Yacht TV.Marine TV For Sale.

Crimping

• 2 Drawn tow is then fed into compression boxes,Marine TV, at a rate of 9-15 crimps per inch (3-6 per cm).19 Inch Caravan TV.

Setting

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

Cutting

• 4 Following heat setting,24 Inch RV 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 TVs.Sauna Room TV, such ascarpet,polyester filaments are cut into 6 inch (15 cm)32 Inch Batroom TV Mirror.

The Future

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