Polyester

Background

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

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

History

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

The Manufacturing
Process

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

Drying

• 3 After the polyester emerges from polymerization,Natural Cork Composition Sheets. 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.Cork and Nitrile Rubber sheets, which are usually round,Farmhouse Large Decorative Wall Clocks. The number of holes in the spinneret determines the size of the yarn,Pallet Wood Barn Farmhouse Wall Clock.
• 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 Windmill Wall Hook. 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,Inspired Home Windmill Decor Wall Hooks.
• Windmill Metal Wall Decor with Hook,Quartz Decorative Wall Clock. Also,Multi-size Home Office Large Wall Clock,12 Inch Printed Face 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.

Christmas Wood and Metal Crafts

Fall-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,Bird House Spring Wood Planter. The rope-Distressed Wood Slat Wall Mirror.

Drawing tow

• 1 Newly-Large Windmill Home Decoration Wall Hook.Vintage Look White Wash Metal Frame Wood Cabinet Storage With 6 Drawers.

Crimping

• 2 Drawn tow is then fed into compression boxes,Vintage Look Cabinet, at a rate of 9-15 crimps per inch (3-6 per cm).Cabinet with 6 Drawers.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Furniture.Metal Planter Tray With Handles.

Cutting

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

The Future

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