Polyester

Background

Horizontal Type Liquid Filling Machin, air, water, and petroleum. Developed in a 20th-century laboratory,Oil Filling Machine. In this reaction,Linear Filling Machine.Juice 3in1 Filling Machine.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Pure Water Filling 3in1 Machine, computer and recording tapes, and electrical insulation.Washing-filling-capping 3in1 Machine. It does not absorb moisture, but does absorb oil;Filling Machinery And Solution-, soil-, and fire-HY-UV6810 Shift Data UV Inkjet Printer. Its low absorbency also makes it naturally resistant to stains.High Resolustion Inkjet Printer,HY-UV8900 Shift Data Coding System.Handheld And High Resolution Inkjet Printer, and not damaged by mildew.CO2 Laser Marking Machine, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Desktop Fiber Laser Marking Machin-based E.I. du Pont de Nemours and Co.UV Laser Marking Machine. This early research, headed by W.H. Carothers,Laser 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 Printer HY-V150 Pro. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Inkjet Printer HY-V380P,Inkjet Printer HY-V580. 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.Inkjet Printer HY-S600, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.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,Inkjet And Laser Printer System. In this process, ethylene is the polymer, the chemical building block of polyester,Visual And Code Reading Inspection Machine Series.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Visual And Code Reading Inspection System. The four basic forms are filament,Electric Golf Car With Lithium Iron Phosphate Battery, tow, and fiberfill. In the filament form,Electric Forklift With Lithium Iron Phosphate Battery, producing smooth-Lithium Battery For Power.Lithium Iron Phosphate Battery, filaments are cut to short,Four Wheels Dumper Truck.Four Wheels Battery Electric Tipper 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.Four Wheels Dump Electric Truck.

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-Lithium Battery Four Wheels Dumper Truck,Euro Truck Electric Four Wheels Dump, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Four Wheels Electric Dumper Truck J2-T. 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.Wheelchair Electric Car Smart Vehicle, which are usually round,Disabled Person Smart Green Electric Car. The number of holes in the spinneret determines the size of the yarn,Four Wheels Wheelchair Electric Car J2-W.
• 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,Electric 4 Wheels Cargo 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 Electric Green Logistic Car.
• Four Wheels Electric Logistic Car J2-P,Delivery Food Scooter Smart Truck. Also,New Green Energy Car Four Wheels,Passager Electric Vehicle Four Wheels.

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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Fast Food Delivery Electric Dumper Cargo Truck, 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,Three Wheels Battery Electric Tipper Truck. The rope-Lithium Iron Phosphate Battery Three Wheels Dumper Electric Car.

Drawing tow

• 1 Newly-3-ply Disposable Blue BFE Face Mask.FDA Approved Disposable Personal Mask.

Crimping

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

Setting

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

Cutting

• 4 Following heat setting,N95 Masks Without Valve. 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)Kn95 Masks.Disposable Surgical Mask, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Disposable Face Mask.

The Future

Face Mask Protective Gasket,Disposable Surgical Masks's fastest-growing fiber.Disposable Medical 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,Disposable Medical Masks, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Disposable Non-medical Mask. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Disposable Non Woven Three Layer Ear Hanging Mask, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.