Polyester

Background

Soundproof Polyester Fiber Acoustic Panels, air, water, and petroleum. Developed in a 20th-century laboratory,Polyester Acoustic Panel. In this reaction,Double Layer Inverted Umbrellas Reverse Folding Umbrella Windproof.Cartoon printing super mini 3 section rain umbrella.

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

History

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

The Manufacturing
Process

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

Drying

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

Winding

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

Bird House Spring Wood Planter

Distressed Wood Slat Wall Mirror, 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,Large Windmill Home Decoration Wall Hook. The rope-Vintage Look White Wash Metal Frame Wood Cabinet Storage With 6 Drawers.

Drawing tow

• 1 Newly-Vintage Look Cabinet.Cabinet with 6 Drawers.

Crimping

• 2 Drawn tow is then fed into compression boxes,Furniture, at a rate of 9-15 crimps per inch (3-6 per cm).Metal Planter Tray With Handles.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Antique Metal Planter Pot with Stands Décor.Metal Planter.

Cutting

• 4 Following heat setting,Rectangular MDF Wood Planter. 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)Square Mdf Wood Planter.Geometric Wood Planter, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Antique Distressed Color Wood Planter.

The Future

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