Polyester

Background

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

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

History

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

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,Kids Clear And Transparent POE Umbrella. In this process, ethylene is the polymer, the chemical building block of polyester,POE Animal Children Kids Umbrella.

The Manufacturing
Process

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

Drying

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

Wooden Two Folding Automatic Golf Umbrella

Folding 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,Natural Cork Composition Sheets. The rope-Cork and Nitrile Rubber sheets.

Drawing tow

• 1 Newly-Farmhouse Large Decorative Wall Clocks.Pallet Wood Barn Farmhouse Wall Clock.

Crimping

• 2 Drawn tow is then fed into compression boxes,Black Windmill Wall Hook, at a rate of 9-15 crimps per inch (3-6 per cm).Inspired Home Windmill Decor Wall Hooks.

Setting

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

Cutting

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

The Future

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