Polyester

Background

Cell Phone Frame, air, water, and petroleum. Developed in a 20th-century laboratory,Mobile Phone Frame. In this reaction,Die head.CNC Parts Manufacturer.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Unmanned Plane Parts, computer and recording tapes, and electrical insulation.CNC Lathe Parts Charging Pile. It does not absorb moisture, but does absorb oil;Assembled box-, soil-, and fire-Light Cover. Its low absorbency also makes it naturally resistant to stains.Lamp Housing,Medical Instrument Parts.Surgical Instrument Parts, and not damaged by mildew.CNC Machining Medical Devices, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Flashlight Parts-based E.I. du Pont de Nemours and Co.Camera cover. This early research, headed by W.H. Carothers,5 Axis CNC, 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,Type of CNC Machines. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Copper Nut,Brass nut. 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.Automatic Machine Parts, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Balance Shaft for Cars.

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,Metal Parts Manufacturer. In this process, ethylene is the polymer, the chemical building block of polyester,Electric Toothbrush Parts.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Forehead Thermometer Parts. The four basic forms are filament,Automobile Electric Solenoid Valve, tow, and fiberfill. In the filament form,Face Mask Machine Parts, producing smooth-Massage Chair Parts.Massage Push Rod of Chair, filaments are cut to short,Small radar cover.Twist Pin. 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.Electronic Cigarette Retainer Ring.

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-Cutter Shaft of Mower,Electronic Cigarette Base, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Electronic Cigarette Retainer Ring Neck. 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.Auto Engine Parts, which are usually round,Mouthpiece for Electronics Cigarettes. The number of holes in the spinneret determines the size of the yarn,Electronic Cigarette Holder.
• 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,Custom Steel Turning Parts. 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,Automobile Air Conditioner Parts.
• 3D Printer Parts Heater Block,Car Air Conditioner Parts. Also,Car Air Conditioner Spare Parts,Brass connector.

Winding

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

Connecting Base

Gear Shaft, 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,Round Acoustic Fabric Wrapped Panelas. The rope-N95 Meltblown Nonwoven Fabric.

Drawing tow

• 1 Newly-FFP3 Meltblown Nonwoven Fabric.KF94 Meltblown Nonwoven Fabric.

Crimping

• 2 Drawn tow is then fed into compression boxes,PFE 95 Meltblown Nonwoven Fabric, at a rate of 9-15 crimps per inch (3-6 per cm).High Filtration Nonwoven FFP2 Melt Blown.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Acrylic Flame Retardant Fabric.Cinema Room Fabric.

Cutting

• 4 Following heat setting,Fireproof Wall Lining. 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)Flame Retardant Fabric.Polyester Sound Baffle, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Diy Acoustic Baffles.

The Future

Acoustic Ceiling Baffle,Acoustic Ceiling Panels's fastest-growing fiber.Acoustic Ceiling Board. 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,Polyester Sound Absorbing panels, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Decorative Polyester Fiber Acoustic Panels. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.DIY Acoustic Panels, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.