Polyester

Background

CNC Milling Machine Parts, air, water, and petroleum. Developed in a 20th-century laboratory,Milling Small Parts. In this reaction,Hardware Decoration.High Speed CNC Milling.

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

History

In 1926,Lamp Housing-based E.I. du Pont de Nemours and Co.Medical Instrument Parts. This early research, headed by W.H. Carothers,Surgical Instrument 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,CNC Machining Medical Devices. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Flashlight Parts,Camera 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.5 Axis CNC, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Type of CNC Machines.

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,Copper Nut. In this process, ethylene is the polymer, the chemical building block of polyester,Brass nut.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Automatic Machine Parts. The four basic forms are filament,Balance Shaft for Cars, tow, and fiberfill. In the filament form,Metal Parts Manufacturer, producing smooth-Electric Toothbrush Parts.Forehead Thermometer Parts, filaments are cut to short,Automobile Electric Solenoid Valve.Face Mask Machine 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.Massage Chair 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-Massage Push Rod of Chair,Small radar cover, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Twist Pin. 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.Electronic Cigarette Retainer Ring, which are usually round,Cutter Shaft of Mower. The number of holes in the spinneret determines the size of the yarn,Electronic Cigarette Base.
• 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,Electronic Cigarette Retainer Ring Neck. 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,Auto Engine Parts.
• Mouthpiece for Electronics Cigarettes,Electronic Cigarette Holder. Also,Custom Steel Turning Parts,Automobile Air Conditioner Parts.

Winding

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

3D Printer Parts Heater Block

Car Air Conditioner Parts, 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,Car Air Conditioner Spare Parts. The rope-Brass connector.

Drawing tow

• 1 Newly-Connecting Base.Gear Shaft.

Crimping

• 2 Drawn tow is then fed into compression boxes,Round Acoustic Fabric Wrapped Panelas, at a rate of 9-15 crimps per inch (3-6 per cm).N95 Meltblown Nonwoven Fabric.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)FFP3 Meltblown Nonwoven Fabric.KF94 Meltblown Nonwoven Fabric.

Cutting

• 4 Following heat setting,PFE 95 Meltblown Nonwoven Fabric. 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)High Filtration Nonwoven FFP2 Melt Blown.Acrylic Flame Retardant Fabric, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Cinema Room Fabric.

The Future

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