Polyester

Background

Decorative Sound Polyester Fiber Acoustic Panels, air, water, and petroleum. Developed in a 20th-century laboratory,Polyester Soundproofing Acoustic Panel. In this reaction,Printed Polyester Fiber Acoustic Panel.Soundproof Polyester Fiber Acoustic Panels.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Polyester Acoustic Panel, computer and recording tapes, and electrical insulation.Double Layer Inverted Umbrellas Reverse Folding Umbrella Windproof. It does not absorb moisture, but does absorb oil;Cartoon printing super mini 3 section rain umbrella-, soil-, and fire-Cartoon Animal Children Umbrellas. Its low absorbency also makes it naturally resistant to stains.Inverted Umbrella Double Layer Reverse Windproof,Kids Clear And Transparent POE Umbrella.POE Animal Children Kids Umbrella, and not damaged by mildew.Long Clear POE Rain Umbrella, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,POE Rain Umbrella-based E.I. du Pont de Nemours and Co.Portable Pocket Super Mini 3 Section Rain Umbrella. 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,Black Compact Super Mini 3 Section Rain Umbrella. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Super Mini Umbrella,Promotional Manual Open Golf 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.Manual Open Golf Umbrella, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Polyester Fabric Animal Children 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 Animal Children Umbrella. In this process, ethylene is the polymer, the chemical building block of polyester,Fiberglass Long Automatic Children Umbrella.

The Manufacturing
Process

Polyester is manufactured by one of several methods.POE Long Automatic Children Umbrella. The four basic forms are filament,EVA Print Children Umbrella, tow, and fiberfill. In the filament form,Manual Open Adult Wooden Stick Umbrella, producing smooth-Rainbow Adult Stick Automatic Umbrella.Special Rainbow Edge Long Adult Stick Umbrella, filaments are cut to short,Double Layer Special Adult Stick Umbrella.Automatic Long Stick Rain Umbrellas. 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.Gent Folding Super Mini Manual Open 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-Folding Manual Open Umbrella,Wooden Two Folding Automatic Golf Umbrella, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Folding 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.Natural Cork Composition Sheets, which are usually round,Cork and Nitrile Rubber sheets. The number of holes in the spinneret determines the size of the yarn,Farmhouse Large Decorative Wall Clocks.
• 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,Pallet Wood Barn Farmhouse Wall Clock. 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,Black Windmill Wall Hook.
• Inspired Home Windmill Decor Wall Hooks,Windmill Metal Wall Decor with Hook. Also,Quartz Decorative Wall Clock,Multi-size Home Office Large Wall Clock.

Winding

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

12 Inch Printed Face Wall Clock

Christmas Wood and Metal Crafts, 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,Fall-wood and Metal Crafts. The rope-Bird House Spring Wood Planter.

Drawing tow

• 1 Newly-Distressed Wood Slat Wall Mirror.Large Windmill Home Decoration Wall Hook.

Crimping

• 2 Drawn tow is then fed into compression boxes,Vintage Look White Wash Metal Frame Wood Cabinet Storage With 6 Drawers, at a rate of 9-15 crimps per inch (3-6 per cm).Vintage Look Cabinet.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Cabinet with 6 Drawers.Furniture.

Cutting

• 4 Following heat setting,Metal Planter Tray With Handles. 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)Antique Metal Planter Pot with Stands Décor.Metal Planter, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Rectangular MDF Wood Planter.

The Future

Square Mdf Wood Planter,Geometric Wood Planter's fastest-growing fiber.Antique Distressed Color Wood Planter. 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,Graphite PTFE Yarn, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Multiple PTFE Filament Yarn. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.PTFE Packing with Kynol Fiber Corners, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.