Polyester

Background

Washing-filling-capping 3in1 Machine, air, water, and petroleum. Developed in a 20th-century laboratory,Filling Machinery And Solution. In this reaction,HY-UV6810 Shift Data UV Inkjet Printer.High Resolustion Inkjet Printer.

Polyester is used in the manufacture of many products, including clothing, home furnishings,HY-UV8900 Shift Data Coding System, computer and recording tapes, and electrical insulation.Handheld And High Resolution Inkjet Printer. It does not absorb moisture, but does absorb oil;CO2 Laser Marking Machine-, soil-, and fire-Desktop Fiber Laser Marking Machin. Its low absorbency also makes it naturally resistant to stains.UV Laser Marking Machine,Laser Printer.Inkjet Printer HY-V150 Pro, and not damaged by mildew.Inkjet Printer HY-V380P, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Inkjet Printer HY-V580-based E.I. du Pont de Nemours and Co.Inkjet Printer HY-S600. This early research, headed by W.H. Carothers,Inkjet Printer, 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,Inkjet And Laser Printer System. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Visual And Code Reading Inspection Machine Series,Visual And Code Reading Inspection System. 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.Electric Golf Car With Lithium Iron Phosphate Battery, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Electric Forklift With Lithium Iron Phosphate Battery.

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,Lithium Battery For Power. In this process, ethylene is the polymer, the chemical building block of polyester,Lithium Iron Phosphate Battery.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Four Wheels Dumper Truck. The four basic forms are filament,Four Wheels Battery Electric Tipper Truck, tow, and fiberfill. In the filament form,Four Wheels Dump Electric Truck, producing smooth-Lithium Battery Four Wheels Dumper Truck.Euro Truck Electric Four Wheels Dump, filaments are cut to short,Four Wheels Electric Dumper Truck J2-T.Wheelchair Electric Car Smart Vehicle. 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.Disabled Person Smart Green Electric Car.

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-Four Wheels Wheelchair Electric Car J2-W,Electric 4 Wheels Cargo truck, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Four Wheels Electric Green Logistic Car. 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.Four Wheels Electric Logistic Car J2-P, which are usually round,Delivery Food Scooter Smart Truck. The number of holes in the spinneret determines the size of the yarn,New Green Energy Car Four Wheels.
• 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,Passager Electric Vehicle Four Wheels. 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,Electric Car Automatic Control Family New Cars.
• Fast Food Delivery Electric Dumper Cargo Truck,Three Wheels Battery Electric Tipper Truck. Also,Lithium Iron Phosphate Battery Three Wheels Dumper Electric Car,3-ply Disposable Blue BFE Face Mask.

Winding

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

FDA Approved Disposable Personal Mask

Medical Surgical 3 Ply Face Mask, 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,Disposable Health Protective Mask. The rope-3 Ply Earloop Face Mask Disposable.

Drawing tow

• 1 Newly-Personal Protective Mask.N95 Masks Without Valve.

Crimping

• 2 Drawn tow is then fed into compression boxes,Kn95 Masks, at a rate of 9-15 crimps per inch (3-6 per cm).Disposable Surgical Mask.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Disposable Face Mask.Face Mask Protective Gasket.

Cutting

• 4 Following heat setting,Disposable Surgical Masks. 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)Disposable Medical Mask .Disposable Medical Masks, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Disposable Non-medical Mask.

The Future

Disposable Non Woven Three Layer Ear Hanging Mask,Disposable Non-medical Masks's fastest-growing fiber.metal cnc machining. 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,Stamping Pipe Buckle, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Greenhouses Flat Timber Connector. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.CNC Machining Parts, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.