Polyester

Background

3-10L Bottle Water Filling Machine, air, water, and petroleum. Developed in a 20th-century laboratory,Quantitative Filling Machine. In this reaction,Time Setting Filling Machine.Semi-automatic Filling Machine.

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

History

In 1926,High Resolustion Inkjet Printer-based E.I. du Pont de Nemours and Co.HY-UV8900 Shift Data Coding System. This early research, headed by W.H. Carothers,Handheld And High Resolution 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,CO2 Laser Marking Machine. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Desktop Fiber Laser Marking Machin,UV Laser Marking Machine. 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.Laser Printer, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Inkjet Printer HY-V150 Pro.

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 Printer HY-V380P. In this process, ethylene is the polymer, the chemical building block of polyester,Inkjet Printer HY-V580.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Inkjet Printer HY-S600. The four basic forms are filament,Inkjet Printer, tow, and fiberfill. In the filament form,Inkjet And Laser Printer System, producing smooth-Visual And Code Reading Inspection Machine Series.Visual And Code Reading Inspection System, filaments are cut to short,Electric Golf Car With Lithium Iron Phosphate Battery.Electric Forklift With Lithium Iron Phosphate Battery. 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.Lithium Battery For Power.

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 Iron Phosphate Battery,Four Wheels Dumper Truck, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Four Wheels Battery Electric Tipper 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.Four Wheels Dump Electric Truck, which are usually round,Lithium Battery Four Wheels Dumper Truck. The number of holes in the spinneret determines the size of the yarn,Euro Truck Electric Four Wheels Dump.
• 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,Four Wheels Electric Dumper Truck J2-T. 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,Wheelchair Electric Car Smart Vehicle.
• Disabled Person Smart Green Electric Car,Four Wheels Wheelchair Electric Car J2-W. Also,Electric 4 Wheels Cargo truck,Four Wheels Electric Green Logistic Car.

Winding

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

Four Wheels Electric Logistic Car J2-P

Delivery Food Scooter Smart 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,New Green Energy Car Four Wheels. The rope-Passager Electric Vehicle Four Wheels.

Drawing tow

• 1 Newly-Electric Car Automatic Control Family New Cars.Fast Food Delivery Electric Dumper Cargo Truck.

Crimping

• 2 Drawn tow is then fed into compression boxes,Three Wheels Battery Electric Tipper Truck, at a rate of 9-15 crimps per inch (3-6 per cm).Lithium Iron Phosphate Battery Three Wheels Dumper Electric Car.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)3-ply Disposable Blue BFE Face Mask.FDA Approved Disposable Personal Mask.

Cutting

• 4 Following heat setting,Medical Surgical 3 Ply Face Mask. 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 Health Protective Mask.3 Ply Earloop Face Mask Disposable, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Personal Protective Mask.

The Future

N95 Masks Without Valve,Kn95 Masks's fastest-growing fiber.Disposable Surgical 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 Face Mask, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Face Mask Protective Gasket. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Disposable Surgical Masks, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.