Polyester

Background

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

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

History

In 1926,Long Clear POE Rain Umbrella-based E.I. du Pont de Nemours and Co.POE Rain Umbrella. This early research, headed by W.H. Carothers,Portable Pocket 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,Cartoon Printing 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.Black Compact Super Mini 3 Section Rain Umbrella,Super Mini 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.Promotional 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.Manual Open Golf 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,Polyester Fabric Animal Children Umbrella. In this process, ethylene is the polymer, the chemical building block of polyester,POE Animal Children Umbrella.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Fiberglass Long Automatic Children Umbrella. The four basic forms are filament,POE Long Automatic Children Umbrella, tow, and fiberfill. In the filament form,EVA Print Children Umbrella, producing smooth-Manual Open Adult Wooden Stick Umbrella.Rainbow Adult Stick Automatic Umbrella, filaments are cut to short,Special Rainbow Edge Long Adult Stick Umbrella.Double Layer Special Adult Stick 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.Automatic Long Stick Rain Umbrellas.

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-Gent Folding Super Mini Manual Open Umbrella,Folding Manual Open Umbrella, is extruded through a slot to form long ribbons.

Drying

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

Multi-size Home Office Large Wall Clock

12 Inch Printed Face Wall Clock, 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,Christmas Wood and Metal Crafts. The rope-Fall-wood and Metal Crafts.

Drawing tow

• 1 Newly-Bird House Spring Wood Planter.Distressed Wood Slat Wall Mirror.

Crimping

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

Setting

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

Cutting

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

The Future

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