Polyester

Background

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

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

History

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

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,Handheld And High Resolution Inkjet Printer. In this process, ethylene is the polymer, the chemical building block of polyester,CO2 Laser Marking Machine.

The Manufacturing
Process

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

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

Drying

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

Drawing tow

• 1 Newly-Electric 4 Wheels Cargo truck.Four Wheels Electric Green Logistic Car.

Crimping

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

Setting

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

Cutting

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

The Future

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