Polyester

Background

Furniture Felt Roll, air, water, and petroleum. Developed in a 20th-century laboratory,Felt Roll. In this reaction,400mm Double Layers Folding Shelf.300mm Double Layers Folding Shelf.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Folding Shelf, computer and recording tapes, and electrical insulation.Bathroom Glass Shelf with Round Base. It does not absorb moisture, but does absorb oil;Glass Shelf-, soil-, and fire-Perforation-free Wall-mounted Storage Plastic Box. Its low absorbency also makes it naturally resistant to stains.Perforation-free Wall-mounted Hair Dryer Storage Plastic Box,Plastic Box.Bathroom Metal Towel Rack With Glass Panel, and not damaged by mildew.Bathroom Metal Towel Rack, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Metal Towel Rack-based E.I. du Pont de Nemours and Co.Popular Metal Tissue Holder. This early research, headed by W.H. Carothers,Tissue 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,Basketball Sports Storage Rack. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Rectangular Towel Rack,Shower Handle Metal Holder. 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.Perforation-free Self-sticky Helmet Metal Holder, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Hair Driver Holder For Hotel.

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,Large Storage Basket. In this process, ethylene is the polymer, the chemical building block of polyester,Storage Basket.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Metal Storage Basket for Kitchen. The four basic forms are filament,Multi-functional Storage Metal Basket for Kitchen, tow, and fiberfill. In the filament form,White Multi-functional Storagemetal Basket, producing smooth-Self-stick double hooks.Self-stick Hooks, filaments are cut to short,Self-stick Hooks.New Style Metal Hooks. 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.Over Door Metal Hooks.

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-Over Door Metal Hook with Basket,Telescoping Pedestal Paper Holder, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Paper Holder. 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.Rubber Foot Pads, which are usually round,Black Felt Foot Pads. The number of holes in the spinneret determines the size of the yarn,Self-adhesive Felt Foot Pads Furniture.
• 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,Felt Foot Pads For Desk Legs. 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,Rectangle Felt Foot Pads.
• Black Square Felt Foot Pads,Strong Adhesives Felt Foot Pads. Also,Chrome Plated Bathroom Accessories Kit,Accessories.

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 V-Wheel

Auto Radiator, 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,Electronic Cigarette Atomizer Hood. The rope-CNC Axis Types.

Drawing tow

• 1 Newly-Aluminum Bar.CNC Milling Machine Parts.

Crimping

• 2 Drawn tow is then fed into compression boxes,Milling Small Parts, at a rate of 9-15 crimps per inch (3-6 per cm).Hardware Decoration.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)High Speed CNC Milling.Cell Phone Frame.

Cutting

• 4 Following heat setting,Mobile Phone Frame. 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)Die head.CNC Parts Manufacturer, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Unmanned Plane Parts.

The Future

CNC Lathe Parts Charging Pile,Assembled box's fastest-growing fiber.Light Cover. 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,Lamp Housing, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Medical Instrument Parts. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Surgical Instrument Parts, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.