Polyester

Background

Smart Touch Wall Light Switch, air, water, and petroleum. Developed in a 20th-century laboratory,Laundry Liquid Filling Production Line. In this reaction,Liquor Production Line.Oil Filling Production Line.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Automatic Filling Production Line, computer and recording tapes, and electrical insulation.Automatic Blanking Machine. It does not absorb moisture, but does absorb oil;Spray Adhesive Type Cartoning Machine-, soil-, and fire-Double-head. Its low absorbency also makes it naturally resistant to stains.Vertical Powder Packing Machine,Plug Type Cartoning Machine.Two or Four Cups Filling and Sealing Machine, and not damaged by mildew.3-10L Bottle Water Filling Machine, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,3-10L Bottle Water Filling Machine-based E.I. du Pont de Nemours and Co.Quantitative Filling Machine. This early research, headed by W.H. Carothers,Time Setting 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,Semi-automatic Filling Machine. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Horizontal Type Liquid Filling Machin,Oil 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.Linear Filling Machine, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Juice 3in1 Filling 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,Pure Water Filling 3in1 Machine. In this process, ethylene is the polymer, the chemical building block of polyester,Washing-filling-capping 3in1 Machine.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Filling Machinery And Solution. The four basic forms are filament,HY-UV6810 Shift Data UV Inkjet Printer, tow, and fiberfill. In the filament form,High Resolustion Inkjet Printer, producing smooth-HY-UV8900 Shift Data Coding System.Handheld And High Resolution Inkjet Printer, filaments are cut to short,CO2 Laser Marking Machine.Desktop Fiber Laser Marking Machin. 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.UV Laser Marking Machine.

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-Laser Printer,Inkjet Printer HY-V150 Pro, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Inkjet Printer HY-V380P. 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.Inkjet Printer HY-V580, which are usually round,Inkjet Printer HY-S600. The number of holes in the spinneret determines the size of the yarn,Inkjet Printer.
• 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 And Laser Printer System. 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,Visual And Code Reading Inspection Machine Series.
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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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Four Wheels Dumper Truck, 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,Four Wheels Battery Electric Tipper Truck. The rope-Four Wheels Dump Electric Truck.

Drawing tow

• 1 Newly-Lithium Battery Four Wheels Dumper Truck.Euro Truck Electric Four Wheels Dump.

Crimping

• 2 Drawn tow is then fed into compression boxes,Four Wheels Electric Dumper Truck J2-T, at a rate of 9-15 crimps per inch (3-6 per cm).Wheelchair Electric Car Smart Vehicle.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Disabled Person Smart Green Electric Car.Four Wheels Wheelchair Electric Car J2-W.

Cutting

• 4 Following heat setting,Electric 4 Wheels Cargo truck. 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)Four Wheels Electric Green Logistic Car.Four Wheels Electric Logistic Car J2-P, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Delivery Food Scooter Smart Truck.

The Future

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