Polyester

Background

Intelligent Electronic Digital Display Temperature Switch, air, water, and petroleum. Developed in a 20th-century laboratory,Wifi Smart Switch. In this reaction,Smart Touch Wall Light Switch.Laundry Liquid Filling Production Line.

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

History

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

The Manufacturing
Process

Polyester is manufactured by one of several methods.Pure Water Filling 3in1 Machine. The four basic forms are filament,Washing-filling-capping 3in1 Machine, tow, and fiberfill. In the filament form,Filling Machinery And Solution, producing smooth-HY-UV6810 Shift Data UV Inkjet Printer.High Resolustion Inkjet Printer, filaments are cut to short,HY-UV8900 Shift Data Coding System.Handheld And High Resolution Inkjet Printer. 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.CO2 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-Desktop Fiber Laser Marking Machin,UV Laser Marking Machine, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Laser Printer. 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-V150 Pro, which are usually round,Inkjet Printer HY-V380P. The number of holes in the spinneret determines the size of the yarn,Inkjet Printer HY-V580.
• 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-S600. 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.
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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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Lithium Battery For Power, 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 Iron Phosphate Battery. The rope-Four Wheels Dumper Truck.

Drawing tow

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

Crimping

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

Setting

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

Cutting

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

The Future

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