Polyester

Background

Automatic Blanking Machine, air, water, and petroleum. Developed in a 20th-century laboratory,Spray Adhesive Type Cartoning Machine. In this reaction,Double-head.Vertical Powder Packing Machine.

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

History

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

The Manufacturing
Process

Polyester is manufactured by one of several methods.CO2 Laser Marking Machine. The four basic forms are filament,Desktop Fiber Laser Marking Machin, tow, and fiberfill. In the filament form,UV Laser Marking Machine, producing smooth-Laser Printer.Inkjet Printer HY-V150 Pro, filaments are cut to short,Inkjet Printer HY-V380P.Inkjet Printer HY-V580. 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 Printer HY-S600.

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-Inkjet Printer,Inkjet And Laser Printer System, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Visual And Code Reading Inspection Machine Series. 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.Visual And Code Reading Inspection System, which are usually round,Electric Golf Car With Lithium Iron Phosphate Battery. The number of holes in the spinneret determines the size of the yarn,Electric Forklift With 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,Lithium Battery For Power. 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,Lithium Iron Phosphate Battery.
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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 Electric Dumper Truck J2-T, 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,Wheelchair Electric Car Smart Vehicle. The rope-Disabled Person Smart Green Electric Car.

Drawing tow

• 1 Newly-Four Wheels Wheelchair Electric Car J2-W.Electric 4 Wheels Cargo truck.

Crimping

• 2 Drawn tow is then fed into compression boxes,Four Wheels Electric Green Logistic Car, at a rate of 9-15 crimps per inch (3-6 per cm).Four Wheels Electric Logistic Car J2-P.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Delivery Food Scooter Smart Truck.New Green Energy Car Four Wheels.

Cutting

• 4 Following heat setting,Passager Electric Vehicle Four Wheels. 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)Electric Car Automatic Control Family New Cars.Fast Food Delivery Electric Dumper Cargo Truck, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Three Wheels Battery Electric Tipper Truck.

The Future

Lithium Iron Phosphate Battery Three Wheels Dumper Electric Car,3-ply Disposable Blue BFE Face Mask's fastest-growing fiber.FDA Approved Disposable Personal 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,Medical Surgical 3 Ply Face Mask, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Disposable Health Protective Mask. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.3 Ply Earloop Face Mask Disposable, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.