Polyester

Background

Electric Toothbrush Parts, air, water, and petroleum. Developed in a 20th-century laboratory,Forehead Thermometer Parts. In this reaction,Automobile Electric Solenoid Valve.Face Mask Machine Parts.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Massage Chair Parts, computer and recording tapes, and electrical insulation.Massage Push Rod of Chair. It does not absorb moisture, but does absorb oil;Small radar cover-, soil-, and fire-Twist Pin. Its low absorbency also makes it naturally resistant to stains.Electronic Cigarette Retainer Ring,Cutter Shaft of Mower.Electronic Cigarette Base, and not damaged by mildew.Electronic Cigarette Retainer Ring Neck, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Auto Engine Parts-based E.I. du Pont de Nemours and Co.Mouthpiece for Electronics Cigarettes. This early research, headed by W.H. Carothers,Electronic Cigarette Holder, 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,Custom Steel Turning Parts. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Automobile Air Conditioner Parts,3D Printer Parts Heater Block. 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.Car Air Conditioner Parts, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Car Air Conditioner Spare Parts.

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,Brass connector. In this process, ethylene is the polymer, the chemical building block of polyester,Connecting Base.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Gear Shaft. The four basic forms are filament,Round Acoustic Fabric Wrapped Panelas, tow, and fiberfill. In the filament form,N95 Meltblown Nonwoven Fabric, producing smooth-FFP3 Meltblown Nonwoven Fabric.KF94 Meltblown Nonwoven Fabric, filaments are cut to short,PFE 95 Meltblown Nonwoven Fabric.High Filtration Nonwoven FFP2 Melt Blown. 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.Acrylic Flame Retardant Fabric.

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-Cinema Room Fabric,Fireproof Wall Lining, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Flame Retardant Fabric. 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.Polyester Sound Baffle, which are usually round,Diy Acoustic Baffles. The number of holes in the spinneret determines the size of the yarn,Acoustic Ceiling Baffle.
• 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,Acoustic Ceiling Panels. 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,Acoustic Ceiling Board.
• Polyester Sound Absorbing panels,Decorative Polyester Fiber Acoustic Panels. Also,DIY Acoustic Panels,Polyester Acoustic Sound Panels.

Winding

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

Sound Absorbing Wall Panels

Studio acoustic Panel, 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,Custom Acoustic Panels. The rope-Hexagon Polyester Acoustic Panel.

Drawing tow

• 1 Newly-Beveled Polyester Fiber Panel.Polyester Acoustic Leaf.

Crimping

• 2 Drawn tow is then fed into compression boxes,Print Polyester Fiber Acoustic Panel, at a rate of 9-15 crimps per inch (3-6 per cm).Polyester Sound Dampening Panels.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Art Board.Polyester Fiber Felt.

Cutting

• 4 Following heat setting,Eco Friendly Wall Panel. 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)Decorative Sound Polyester Fiber Acoustic Panels.Polyester Soundproofing Acoustic Panel, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Printed Polyester Fiber Acoustic Panel.

The Future

Soundproof Polyester Fiber Acoustic Panels,Polyester Acoustic Panel's fastest-growing fiber.Double Layer Inverted Umbrellas Reverse Folding Umbrella Windproof. 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,Cartoon printing super mini 3 section rain umbrella, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Cartoon Animal Children Umbrellas. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Inverted Umbrella Double Layer Reverse Windproof, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.