Polyester

Background

CNC Lathe Parts Charging Pile, air, water, and petroleum. Developed in a 20th-century laboratory,Assembled box. In this reaction,Light Cover.Lamp Housing.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Medical Instrument Parts, computer and recording tapes, and electrical insulation.Surgical Instrument Parts. It does not absorb moisture, but does absorb oil;CNC Machining Medical Devices-, soil-, and fire-Flashlight Parts. Its low absorbency also makes it naturally resistant to stains.Camera cover,5 Axis CNC.Type of CNC Machines, and not damaged by mildew.Copper Nut, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Brass nut-based E.I. du Pont de Nemours and Co.Automatic Machine Parts. This early research, headed by W.H. Carothers,Balance Shaft for Cars, 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,Metal Parts Manufacturer. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Electric Toothbrush Parts,Forehead Thermometer Parts. 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.Automobile Electric Solenoid Valve, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Face Mask Machine 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,Massage Chair Parts. In this process, ethylene is the polymer, the chemical building block of polyester,Massage Push Rod of Chair.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Small radar cover. The four basic forms are filament,Twist Pin, tow, and fiberfill. In the filament form,Electronic Cigarette Retainer Ring, producing smooth-Cutter Shaft of Mower.Electronic Cigarette Base, filaments are cut to short,Electronic Cigarette Retainer Ring Neck.Auto Engine Parts. 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.Mouthpiece for Electronics Cigarettes.

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-Electronic Cigarette Holder,Custom Steel Turning Parts, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Automobile Air Conditioner Parts. 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.3D Printer Parts Heater Block, which are usually round,Car Air Conditioner Parts. The number of holes in the spinneret determines the size of the yarn,Car Air Conditioner Spare Parts.
• 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,Brass connector. 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,Connecting Base.
• Gear Shaft,Round Acoustic Fabric Wrapped Panelas. Also,N95 Meltblown Nonwoven Fabric,FFP3 Meltblown Nonwoven 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.

KF94 Meltblown Nonwoven Fabric

PFE 95 Meltblown Nonwoven 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,High Filtration Nonwoven FFP2 Melt Blown. The rope-Acrylic Flame Retardant Fabric.

Drawing tow

• 1 Newly-Cinema Room Fabric.Fireproof Wall Lining.

Crimping

• 2 Drawn tow is then fed into compression boxes,Flame Retardant Fabric, at a rate of 9-15 crimps per inch (3-6 per cm).Polyester Sound Baffle.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Diy Acoustic Baffles.Acoustic Ceiling Baffle.

Cutting

• 4 Following heat setting,Acoustic Ceiling 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)Acoustic Ceiling Board.Polyester Sound Absorbing panels, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Decorative Polyester Fiber Acoustic Panels.

The Future

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