Polyester

Background

Shower Handle Metal Holder, air, water, and petroleum. Developed in a 20th-century laboratory,Perforation-free Self-sticky Helmet Metal Holder. In this reaction,Hair Driver Holder For Hotel.Large Storage Basket.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Storage Basket, computer and recording tapes, and electrical insulation.Metal Storage Basket for Kitchen. It does not absorb moisture, but does absorb oil;Multi-functional Storage Metal Basket for Kitchen-, soil-, and fire-White Multi-functional Storagemetal Basket. Its low absorbency also makes it naturally resistant to stains.Self-stick double hooks,Self-stick Hooks.Self-stick Hooks, and not damaged by mildew.New Style Metal Hooks, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Over Door Metal Hooks-based E.I. du Pont de Nemours and Co.Over Door Metal Hook with Basket. This early research, headed by W.H. Carothers,Telescoping Pedestal Paper 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,Paper Holder. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Rubber Foot Pads,Black Felt Foot Pads. 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.Self-adhesive Felt Foot Pads Furniture, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Felt Foot Pads For Desk Legs.

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,Rectangle Felt Foot Pads. In this process, ethylene is the polymer, the chemical building block of polyester,Black Square Felt Foot Pads.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Strong Adhesives Felt Foot Pads. The four basic forms are filament,Chrome Plated Bathroom Accessories Kit, tow, and fiberfill. In the filament form,Accessories, producing smooth-3D Printer V-Wheel.Auto Radiator, filaments are cut to short,Electronic Cigarette Atomizer Hood.CNC Axis Types. 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.Aluminum Bar.

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-CNC Milling Machine Parts,Milling Small Parts, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Hardware Decoration. 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.High Speed CNC Milling, which are usually round,Cell Phone Frame. The number of holes in the spinneret determines the size of the yarn,Mobile Phone Frame.
• 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,Die head. 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,CNC Parts Manufacturer.
• Unmanned Plane Parts,CNC Lathe Parts Charging Pile. Also,Assembled box,Light Cover.

Winding

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

Lamp Housing

Medical Instrument 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,Surgical Instrument Parts. The rope-CNC Machining Medical Devices.

Drawing tow

• 1 Newly-Flashlight Parts.Camera cover.

Crimping

• 2 Drawn tow is then fed into compression boxes,5 Axis CNC, at a rate of 9-15 crimps per inch (3-6 per cm).Type of CNC Machines.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Copper Nut.Brass nut.

Cutting

• 4 Following heat setting,Automatic Machine Parts. 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)Balance Shaft for Cars.Metal Parts Manufacturer, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Electric Toothbrush Parts.

The Future

Forehead Thermometer Parts,Automobile Electric Solenoid Valve's fastest-growing fiber.Face Mask Machine Parts. 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,Massage Chair Parts, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Massage Push Rod of Chair. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Small radar cover, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.