Polyester

Background

CNC Axis Types, air, water, and petroleum. Developed in a 20th-century laboratory,Aluminum Bar. In this reaction,CNC Milling Machine Parts.Milling Small Parts.

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

History

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

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,5 Axis CNC. In this process, ethylene is the polymer, the chemical building block of polyester,Type of CNC Machines.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Copper Nut. The four basic forms are filament,Brass nut, tow, and fiberfill. In the filament form,Automatic Machine Parts, producing smooth-Balance Shaft for Cars.Metal Parts Manufacturer, filaments are cut to short,Electric Toothbrush Parts.Forehead Thermometer 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.Automobile Electric Solenoid Valve.

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-Face Mask Machine Parts,Massage Chair Parts, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Massage Push Rod of Chair. 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.Small radar cover, which are usually round,Twist Pin. The number of holes in the spinneret determines the size of the yarn,Electronic Cigarette Retainer Ring.
• 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,Cutter Shaft of Mower. 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,Electronic Cigarette Base.
• Electronic Cigarette Retainer Ring Neck,Auto Engine Parts. Also,Mouthpiece for Electronics Cigarettes,Electronic Cigarette Holder.

Winding

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

Custom Steel Turning Parts

Automobile 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,3D Printer Parts Heater Block. The rope-Car Air Conditioner Parts.

Drawing tow

• 1 Newly-Car Air Conditioner Spare Parts.Brass connector.

Crimping

• 2 Drawn tow is then fed into compression boxes,Connecting Base, at a rate of 9-15 crimps per inch (3-6 per cm).Gear Shaft.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Round Acoustic Fabric Wrapped Panelas.N95 Meltblown Nonwoven Fabric.

Cutting

• 4 Following heat setting,FFP3 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)KF94 Meltblown Nonwoven Fabric.PFE 95 Meltblown Nonwoven Fabric, such ascarpet,polyester filaments are cut into 6 inch (15 cm)High Filtration Nonwoven FFP2 Melt Blown.

The Future

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