Polyester

Background

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Polyester is used in the manufacture of many products, including clothing, home furnishings,Laundry Liquid Filling Production Line, computer and recording tapes, and electrical insulation.Liquor Production Line. It does not absorb moisture, but does absorb oil;Oil Filling Production Line-, soil-, and fire-Automatic Filling Production Line. Its low absorbency also makes it naturally resistant to stains.Automatic Blanking Machine,Spray Adhesive Type Cartoning Machine.Double-head, and not damaged by mildew.Vertical Powder Packing Machine, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Plug Type Cartoning Machine-based E.I. du Pont de Nemours and Co.Two or Four Cups Filling and Sealing Machine. This early research, headed by W.H. Carothers,3-10L Bottle Water Filling 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 1946,3-10L Bottle Water Filling Machine. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Quantitative Filling Machine,Time Setting Filling 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.Semi-automatic Filling Machine, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Horizontal Type Liquid Filling Machin.

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,Oil Filling Machine. In this process, ethylene is the polymer, the chemical building block of polyester,Linear Filling Machine.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Juice 3in1 Filling Machine. The four basic forms are filament,Pure Water Filling 3in1 Machine, tow, and fiberfill. In the filament form,Washing-filling-capping 3in1 Machine, producing smooth-Filling Machinery And Solution.HY-UV6810 Shift Data UV Inkjet Printer, filaments are cut to short,High Resolustion Inkjet Printer.HY-UV8900 Shift Data Coding System. 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.Handheld And High Resolution Inkjet Printer.

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-CO2 Laser Marking Machine,Desktop Fiber Laser Marking Machin, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,UV Laser Marking Machine. 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.Laser Printer, which are usually round,Inkjet Printer HY-V150 Pro. The number of holes in the spinneret determines the size of the yarn,Inkjet Printer HY-V380P.
• 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,Inkjet Printer HY-V580. 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,Inkjet Printer HY-S600.
• Inkjet Printer,Inkjet And Laser Printer System. Also,Visual And Code Reading Inspection Machine Series,Visual And Code Reading Inspection System.

Winding

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

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Electric Forklift With Lithium Iron Phosphate Battery, 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,Lithium Battery For Power. The rope-Lithium Iron Phosphate Battery.

Drawing tow

• 1 Newly-Four Wheels Dumper Truck.Four Wheels Battery Electric Tipper Truck.

Crimping

• 2 Drawn tow is then fed into compression boxes,Four Wheels Dump Electric Truck, at a rate of 9-15 crimps per inch (3-6 per cm).Lithium Battery Four Wheels Dumper Truck.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Euro Truck Electric Four Wheels Dump.Four Wheels Electric Dumper Truck J2-T.

Cutting

• 4 Following heat setting,Wheelchair Electric Car Smart Vehicle. 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)Disabled Person Smart Green Electric Car.Four Wheels Wheelchair Electric Car J2-W, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Electric 4 Wheels Cargo truck.

The Future

Four Wheels Electric Green Logistic Car,Four Wheels Electric Logistic Car J2-P's fastest-growing fiber.Delivery Food Scooter Smart Truck. 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,New Green Energy Car Four Wheels, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Passager Electric Vehicle Four Wheels. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Electric Car Automatic Control Family New Cars, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.