Polyester

Background

Polyester Acoustic Sound Panels, air, water, and petroleum. Developed in a 20th-century laboratory,Sound Absorbing Wall Panels. In this reaction,Studio acoustic Panel.Custom Acoustic Panels.

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

History

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

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,Inverted Umbrella Double Layer Reverse Windproof. In this process, ethylene is the polymer, the chemical building block of polyester,Kids Clear And Transparent POE Umbrella.

The Manufacturing
Process

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

Drying

• 3 After the polyester emerges from polymerization,POE Animal Children 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.Fiberglass Long Automatic Children Umbrella, which are usually round,POE Long Automatic Children Umbrella. The number of holes in the spinneret determines the size of the yarn,EVA Print Children 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,Manual Open Adult Wooden Stick Umbrella. 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,Rainbow Adult Stick Automatic Umbrella.
• Special Rainbow Edge Long Adult Stick Umbrella,Double Layer Special Adult Stick Umbrella. Also,Automatic Long Stick Rain Umbrellas,Gent Folding Super Mini Manual Open Umbrella.

Winding

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

Folding Manual Open Umbrella

Wooden Two Folding Automatic Golf Umbrella, 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,Folding Umbrella. The rope-Natural Cork Composition Sheets.

Drawing tow

• 1 Newly-Cork and Nitrile Rubber sheets.Farmhouse Large Decorative Wall Clocks.

Crimping

• 2 Drawn tow is then fed into compression boxes,Pallet Wood Barn Farmhouse Wall Clock, at a rate of 9-15 crimps per inch (3-6 per cm).Black Windmill Wall Hook.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Inspired Home Windmill Decor Wall Hooks.Windmill Metal Wall Decor with Hook.

Cutting

• 4 Following heat setting,Quartz Decorative Wall Clock. 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)Multi-size Home Office Large Wall Clock.12 Inch Printed Face Wall Clock, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Christmas Wood and Metal Crafts.

The Future

Fall-wood and Metal Crafts,Bird House Spring Wood Planter's fastest-growing fiber.Distressed Wood Slat Wall Mirror. 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,Large Windmill Home Decoration Wall Hook, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Vintage Look White Wash Metal Frame Wood Cabinet Storage With 6 Drawers. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Vintage Look Cabinet, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.