Polyester

Background

Shuttle Loom Automatic Machine, air, water, and petroleum. Developed in a 20th-century laboratory,Shuttle Weaving Loom. In this reaction,Velveteen Automatic Shuttle Changing Loom.Shuttleless Rapier Loom Machine.

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

History

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

The Manufacturing
Process

Polyester is manufactured by one of several methods.Disposable Face Medical Masks Making Machine. The four basic forms are filament,Surgical Mask Machine, tow, and fiberfill. In the filament form,Disposable Medical Protective Mask Machine, producing smooth-Gauze Weaving Loom.Towel Weaving Loom, filaments are cut to short,LCD Video Wall.Touch Screen Displays. 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.22 Inch Touch Inquiry Displays.

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-Touch Inquiry Displays,Kiosk, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Low Power Consumption Solar TV. 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.24 Inch Paygo Solar TV, which are usually round,32 Inch Paygo Solar TV. The number of holes in the spinneret determines the size of the yarn,40 Inch Paygo Solar TV.
• 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,Paygo 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 Solar Powered TV.
• Solar Powered TV,Solar TVs. Also,43 Inch Fitness Mirror Display,Fitness Mirror.

Winding

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

Yacht TV

Marine TV For Sale, 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,Marine TV. The rope-19 Inch Caravan TV.

Drawing tow

• 1 Newly-24 Inch Caravan TV.Caravan TV DVD Combo.

Crimping

• 2 Drawn tow is then fed into compression boxes,24 Inch RV TV, at a rate of 9-15 crimps per inch (3-6 per cm).Caravan TVs.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Sauna Room TV.32 Inch Batroom TV Mirror.

Cutting

• 4 Following heat setting,43 Inch Batroom TV Mirror. 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)Bathroom TV Tempered Glass.Bathroom TVs, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Outdoor TV Enclosure 55 Inch.

The Future

Outdoor TV Enclosure 65 Inch,Outdoor TV Enclosure's fastest-growing fiber.QLED Outdoor TV 2000 Brightness. 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,QLED Outdoor Waterproof TV 1500 brightness, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Outdoor TVs Full Sun. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Outdoor TVs, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.