Polyester

Background

Double-head, air, water, and petroleum. Developed in a 20th-century laboratory,Vertical Powder Packing Machine. In this reaction,Plug Type Cartoning Machine.Two or Four Cups Filling and Sealing Machine.

Polyester is used in the manufacture of many products, including clothing, home furnishings,3-10L Bottle Water Filling Machine, computer and recording tapes, and electrical insulation.3-10L Bottle Water Filling Machine. It does not absorb moisture, but does absorb oil;Quantitative Filling Machine-, soil-, and fire-Time Setting Filling Machine. Its low absorbency also makes it naturally resistant to stains.Semi-automatic Filling Machine,Horizontal Type Liquid Filling Machin.Oil Filling Machine, and not damaged by mildew.Linear Filling Machine, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Juice 3in1 Filling Machine-based E.I. du Pont de Nemours and Co.Pure Water Filling 3in1 Machine. This early research, headed by W.H. Carothers,Washing-filling-capping 3in1 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,Filling Machinery And Solution. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.HY-UV6810 Shift Data UV Inkjet Printer,High Resolustion Inkjet Printer. 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.HY-UV8900 Shift Data Coding System, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Handheld And High Resolution Inkjet Printer.

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,CO2 Laser Marking Machine. In this process, ethylene is the polymer, the chemical building block of polyester,Desktop Fiber Laser Marking Machin.

The Manufacturing
Process

Polyester is manufactured by one of several methods.UV Laser Marking Machine. The four basic forms are filament,Laser Printer, tow, and fiberfill. In the filament form,Inkjet Printer HY-V150 Pro, producing smooth-Inkjet Printer HY-V380P.Inkjet Printer HY-V580, filaments are cut to short,Inkjet Printer HY-S600.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.Inkjet And Laser Printer System.

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-Visual And Code Reading Inspection Machine Series,Visual And Code Reading Inspection System, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Electric Golf Car With Lithium Iron Phosphate Battery. 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.Electric Forklift With Lithium Iron Phosphate Battery, which are usually round,Lithium Battery For Power. The number of holes in the spinneret determines the size of the yarn,Lithium Iron Phosphate Battery.
• 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,Four Wheels Dumper Truck. 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,Four Wheels Battery Electric Tipper Truck.
• Four Wheels Dump Electric Truck,Lithium Battery Four Wheels Dumper Truck. Also,Euro Truck Electric Four Wheels Dump,Four Wheels Electric Dumper Truck J2-T.

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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Disabled Person Smart Green Electric Car, 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 Wheelchair Electric Car J2-W. The rope-Electric 4 Wheels Cargo truck.

Drawing tow

• 1 Newly-Four Wheels Electric Green Logistic Car.Four Wheels Electric Logistic Car J2-P.

Crimping

• 2 Drawn tow is then fed into compression boxes,Delivery Food Scooter Smart Truck, at a rate of 9-15 crimps per inch (3-6 per cm).New Green Energy Car Four Wheels.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Passager Electric Vehicle Four Wheels.Electric Car Automatic Control Family New Cars.

Cutting

• 4 Following heat setting,Fast Food Delivery Electric Dumper 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)Three Wheels Battery Electric Tipper Truck.Lithium Iron Phosphate Battery Three Wheels Dumper Electric Car, such ascarpet,polyester filaments are cut into 6 inch (15 cm)3-ply Disposable Blue BFE Face Mask.

The Future

FDA Approved Disposable Personal Mask,Medical Surgical 3 Ply Face Mask's fastest-growing fiber.Disposable Health Protective Mask. 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,3 Ply Earloop Face Mask Disposable, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Personal Protective Mask. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.N95 Masks Without Valve, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.