Polyester

Background

Automatic Fiber High Speed Rapier Machine, air, water, and petroleum. Developed in a 20th-century laboratory,Automatic Fabric Shuttle Changing Loom. In this reaction,Shuttle Loom Machine.Shuttle Loom Automatic Machine.

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

History

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

The Manufacturing
Process

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

Drying

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

43 Inch Fitness Mirror Display, 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,Fitness Mirror. The rope-Yacht TV.

Drawing tow

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

Crimping

• 2 Drawn tow is then fed into compression boxes,19 Inch Caravan TV, at a rate of 9-15 crimps per inch (3-6 per cm).24 Inch Caravan TV.

Setting

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

Cutting

• 4 Following heat setting,Caravan TVs. 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)Sauna Room TV.32 Inch Batroom TV Mirror, such ascarpet,polyester filaments are cut into 6 inch (15 cm)43 Inch Batroom TV Mirror.

The Future

Bathroom TV Tempered Glass,Bathroom TVs's fastest-growing fiber.Outdoor TV Enclosure 55 Inch. 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 65 Inch, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Outdoor TV Enclosure. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.QLED Outdoor TV 2000 Brightness, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.