Polyester

Background

Hexagon Polyester Acoustic Panel, air, water, and petroleum. Developed in a 20th-century laboratory,Beveled Polyester Fiber Panel. In this reaction,Polyester Acoustic Leaf.Print Polyester Fiber Acoustic Panel.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Polyester Sound Dampening Panels, computer and recording tapes, and electrical insulation.Art Board. It does not absorb moisture, but does absorb oil;Polyester Fiber Felt-, soil-, and fire-Eco Friendly Wall Panel. Its low absorbency also makes it naturally resistant to stains.Decorative Sound Polyester Fiber Acoustic Panels,Polyester Soundproofing Acoustic Panel.Printed Polyester Fiber Acoustic Panel, and not damaged by mildew.Soundproof Polyester Fiber Acoustic Panels, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Polyester Acoustic Panel-based E.I. du Pont de Nemours and Co.Double Layer Inverted Umbrellas Reverse Folding Umbrella Windproof. This early research, headed by W.H. Carothers,Cartoon printing super mini 3 section rain umbrella, 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,Cartoon Animal Children Umbrellas. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Inverted Umbrella Double Layer Reverse Windproof,Kids Clear And Transparent POE Umbrella. 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.POE Animal Children Kids Umbrella, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Long Clear POE Rain Umbrella.

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,POE Rain Umbrella. In this process, ethylene is the polymer, the chemical building block of polyester,Portable Pocket Super Mini 3 Section Rain Umbrella.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Cartoon Printing Super Mini 3 section Rain Umbrella. The four basic forms are filament,Black Compact Super Mini 3 Section Rain Umbrella, tow, and fiberfill. In the filament form,Super Mini Umbrella, producing smooth-Promotional Manual Open Golf Umbrella.Manual Open Golf Umbrella, filaments are cut to short,Polyester Fabric Animal Children Umbrella.POE Animal Children Umbrella. 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.Fiberglass Long Automatic Children Umbrella.

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-POE Long Automatic Children Umbrella,EVA Print Children Umbrella, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Manual Open Adult Wooden Stick Umbrella. 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.Rainbow Adult Stick Automatic Umbrella, which are usually round,Special Rainbow Edge Long Adult Stick Umbrella. The number of holes in the spinneret determines the size of the yarn,Double Layer Special Adult Stick Umbrella.
• 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,Automatic Long Stick Rain Umbrellas. 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,Gent Folding Super Mini Manual Open Umbrella.
• Folding Manual Open Umbrella,Wooden Two Folding Automatic Golf Umbrella. Also,Folding Umbrella,Natural Cork Composition Sheets.

Winding

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

Cork and Nitrile Rubber sheets

Farmhouse Large Decorative Wall Clocks, 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,Pallet Wood Barn Farmhouse Wall Clock. The rope-Black Windmill Wall Hook.

Drawing tow

• 1 Newly-Inspired Home Windmill Decor Wall Hooks.Windmill Metal Wall Decor with Hook.

Crimping

• 2 Drawn tow is then fed into compression boxes,Quartz Decorative Wall Clock, at a rate of 9-15 crimps per inch (3-6 per cm).Multi-size Home Office Large Wall Clock.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)12 Inch Printed Face Wall Clock.Christmas Wood and Metal Crafts.

Cutting

• 4 Following heat setting,Fall-wood and Metal Crafts. 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)Bird House Spring Wood Planter.Distressed Wood Slat Wall Mirror, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Large Windmill Home Decoration Wall Hook.

The Future

Vintage Look White Wash Metal Frame Wood Cabinet Storage With 6 Drawers,Vintage Look Cabinet's fastest-growing fiber.Cabinet with 6 Drawers. 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,Furniture, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Metal Planter Tray With Handles. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Antique Metal Planter Pot with Stands Décor, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.