Polyester

Background

Shuttle Weaving Loom, air, water, and petroleum. Developed in a 20th-century laboratory,Velveteen Automatic Shuttle Changing Loom. In this reaction,Shuttleless Rapier Loom Machine.GA736 Shuttleless Rapier Loom Machine.

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

History

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

The Manufacturing
Process

Polyester is manufactured by one of several methods.Surgical Mask Machine. The four basic forms are filament,Disposable Medical Protective Mask Machine, tow, and fiberfill. In the filament form,Gauze Weaving Loom, producing smooth-Towel Weaving Loom.LCD Video Wall, filaments are cut to short,Touch Screen Displays.22 Inch Touch Inquiry 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.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-Kiosk,Low Power Consumption Solar TV, is extruded through a slot to form long ribbons.

Drying

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

Marine TV For Sale

Marine 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,19 Inch Caravan TV. The rope-24 Inch Caravan TV.

Drawing tow

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

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)32 Inch Batroom TV Mirror.43 Inch Batroom TV Mirror.

Cutting

• 4 Following heat setting,Bathroom TV Tempered Glass. 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 TVs.Outdoor TV Enclosure 55 Inch, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Outdoor TV Enclosure 65 Inch.

The Future

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