Polyester

Background

Surgical Instrument Parts, air, water, and petroleum. Developed in a 20th-century laboratory,CNC Machining Medical Devices. In this reaction,Flashlight Parts.Camera cover.

Polyester is used in the manufacture of many products, including clothing, home furnishings,5 Axis CNC, computer and recording tapes, and electrical insulation.Type of CNC Machines. It does not absorb moisture, but does absorb oil;Copper Nut-, soil-, and fire-Brass nut. Its low absorbency also makes it naturally resistant to stains.Automatic Machine Parts,Balance Shaft for Cars.Metal Parts Manufacturer, and not damaged by mildew.Electric Toothbrush Parts, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Forehead Thermometer Parts-based E.I. du Pont de Nemours and Co.Automobile Electric Solenoid Valve. This early research, headed by W.H. Carothers,Face Mask Machine Parts, 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,Massage Chair Parts. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Massage Push Rod of Chair,Small radar cover. 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.Twist Pin, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Electronic Cigarette Retainer Ring.

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,Cutter Shaft of Mower. In this process, ethylene is the polymer, the chemical building block of polyester,Electronic Cigarette Base.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Electronic Cigarette Retainer Ring Neck. The four basic forms are filament,Auto Engine Parts, tow, and fiberfill. In the filament form,Mouthpiece for Electronics Cigarettes, producing smooth-Electronic Cigarette Holder.Custom Steel Turning Parts, filaments are cut to short,Automobile Air Conditioner Parts.3D Printer Parts Heater Block. 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.Car Air Conditioner Parts.

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-Car Air Conditioner Spare Parts,Brass connector, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Connecting Base. 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.Gear Shaft, which are usually round,Round Acoustic Fabric Wrapped Panelas. The number of holes in the spinneret determines the size of the yarn,N95 Meltblown Nonwoven Fabric.
• 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,FFP3 Meltblown Nonwoven Fabric. 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,KF94 Meltblown Nonwoven Fabric.
• PFE 95 Meltblown Nonwoven Fabric,High Filtration Nonwoven FFP2 Melt Blown. Also,Acrylic Flame Retardant Fabric,Cinema Room Fabric.

Winding

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

Fireproof Wall Lining

Flame Retardant Fabric, 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,Polyester Sound Baffle. The rope-Diy Acoustic Baffles.

Drawing tow

• 1 Newly-Acoustic Ceiling Baffle.Acoustic Ceiling Panels.

Crimping

• 2 Drawn tow is then fed into compression boxes,Acoustic Ceiling Board, at a rate of 9-15 crimps per inch (3-6 per cm).Polyester Sound Absorbing panels.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Decorative Polyester Fiber Acoustic Panels.DIY Acoustic Panels.

Cutting

• 4 Following heat setting,Polyester Acoustic Sound Panels. 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)Sound Absorbing Wall Panels.Studio acoustic Panel, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Custom Acoustic Panels.

The Future

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