Polyester

Background

CO2 Laser Marking Machine, air, water, and petroleum. Developed in a 20th-century laboratory,Desktop Fiber Laser Marking Machin. In this reaction,UV Laser Marking Machine.Laser Printer.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Inkjet Printer HY-V150 Pro, computer and recording tapes, and electrical insulation.Inkjet Printer HY-V380P. It does not absorb moisture, but does absorb oil;Inkjet Printer HY-V580-, soil-, and fire-Inkjet Printer HY-S600. Its low absorbency also makes it naturally resistant to stains.Inkjet Printer,Inkjet And Laser Printer System.Visual And Code Reading Inspection Machine Series, and not damaged by mildew.Visual And Code Reading Inspection System, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Electric Golf Car With Lithium Iron Phosphate Battery-based E.I. du Pont de Nemours and Co.Electric Forklift With Lithium Iron Phosphate Battery. This early research, headed by W.H. Carothers,Lithium Battery For Power, 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,Lithium Iron Phosphate Battery. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Four Wheels Dumper Truck,Four Wheels Battery Electric Tipper Truck. 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.Four Wheels Dump Electric Truck, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Lithium Battery Four Wheels Dumper Truck.

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,Euro Truck Electric Four Wheels Dump. In this process, ethylene is the polymer, the chemical building block of polyester,Four Wheels Electric Dumper Truck J2-T.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Wheelchair Electric Car Smart Vehicle. The four basic forms are filament,Disabled Person Smart Green Electric Car, tow, and fiberfill. In the filament form,Four Wheels Wheelchair Electric Car J2-W, producing smooth-Electric 4 Wheels Cargo truck.Four Wheels Electric Green Logistic Car, filaments are cut to short,Four Wheels Electric Logistic Car J2-P.Delivery Food Scooter Smart Truck. 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.New Green Energy Car Four Wheels.

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-Passager Electric Vehicle Four Wheels,Electric Car Automatic Control Family New Cars, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Fast Food Delivery Electric Dumper Cargo Truck. 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.Three Wheels Battery Electric Tipper Truck, which are usually round,Lithium Iron Phosphate Battery Three Wheels Dumper Electric Car. The number of holes in the spinneret determines the size of the yarn,3-ply Disposable Blue BFE Face Mask.
• 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,FDA Approved Disposable Personal Mask. 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,Medical Surgical 3 Ply Face Mask.
• Disposable Health Protective Mask,3 Ply Earloop Face Mask Disposable. Also,Personal Protective Mask,N95 Masks Without Valve.

Winding

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

Kn95 Masks

Disposable Surgical 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 Face Mask. The rope-Face Mask Protective Gasket.

Drawing tow

• 1 Newly-Disposable Surgical Masks.Disposable Medical Mask .

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Disposable Non Woven Three Layer Ear Hanging Mask.Disposable Non-medical Masks.

Cutting

• 4 Following heat setting,metal cnc machining. 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)Stamping Pipe Buckle.Greenhouses Flat Timber Connector, such ascarpet,polyester filaments are cut into 6 inch (15 cm)CNC Machining Parts.

The Future

Machining Parts,Casting Machining's fastest-growing fiber.Precision Machining Parts. 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,Precision Machining, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Other Machining. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Custom CNC Hinge, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.