Polyester

Background

High Power GSM CDMA LTE Phone Jammer, air, water, and petroleum. Developed in a 20th-century laboratory,Phone Signal Jammer. In this reaction,Furniture Felt Roll.Felt Roll.

Polyester is used in the manufacture of many products, including clothing, home furnishings,400mm Double Layers Folding Shelf, computer and recording tapes, and electrical insulation.300mm Double Layers Folding Shelf. It does not absorb moisture, but does absorb oil;Folding Shelf-, soil-, and fire-Bathroom Glass Shelf with Round Base. Its low absorbency also makes it naturally resistant to stains.Glass Shelf,Perforation-free Wall-mounted Storage Plastic Box.Perforation-free Wall-mounted Hair Dryer Storage Plastic Box, and not damaged by mildew.Plastic Box, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

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

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,Perforation-free Self-sticky Helmet Metal Holder. In this process, ethylene is the polymer, the chemical building block of polyester,Hair Driver Holder For Hotel.

The Manufacturing
Process

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

Drying

• 3 After the polyester emerges from polymerization,Over Door Metal Hook with Basket. 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.Telescoping Pedestal Paper Holder, which are usually round,Paper Holder. The number of holes in the spinneret determines the size of the yarn,Rubber Foot Pads.
• 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,Black Felt Foot Pads. 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,Self-adhesive Felt Foot Pads Furniture.
• Felt Foot Pads For Desk Legs,Rectangle Felt Foot Pads. Also,Black Square Felt Foot Pads,Strong Adhesives Felt Foot Pads.

Winding

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

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Accessories, 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 V-Wheel. The rope-Auto Radiator.

Drawing tow

• 1 Newly-Electronic Cigarette Atomizer Hood.CNC Axis Types.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Milling Small Parts.Hardware Decoration.

Cutting

• 4 Following heat setting,High Speed CNC Milling. 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)Cell Phone Frame.Mobile Phone Frame, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Die head.

The Future

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