Polyester

Background

Custom Acoustic Panels, air, water, and petroleum. Developed in a 20th-century laboratory,Hexagon Polyester Acoustic Panel. In this reaction,Beveled Polyester Fiber Panel.Polyester Acoustic Leaf.

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

History

In 1926,Soundproof Polyester Fiber Acoustic Panels-based E.I. du Pont de Nemours and Co.Polyester Acoustic Panel. This early research, headed by W.H. Carothers,Double Layer Inverted Umbrellas Reverse Folding Umbrella Windproof, 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.Cartoon Animal Children Umbrellas,Inverted Umbrella Double Layer Reverse Windproof. 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.Kids Clear And Transparent POE 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 Kids 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,Long Clear POE Rain Umbrella. In this process, ethylene is the polymer, the chemical building block of polyester,POE Rain Umbrella.

The Manufacturing
Process

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

Drying

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

Natural Cork Composition Sheets

Cork and Nitrile Rubber sheets, 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,Farmhouse Large Decorative Wall Clocks. The rope-Pallet Wood Barn Farmhouse Wall Clock.

Drawing tow

• 1 Newly-Black Windmill Wall Hook.Inspired Home Windmill Decor Wall Hooks.

Crimping

• 2 Drawn tow is then fed into compression boxes,Windmill Metal Wall Decor with Hook, at a rate of 9-15 crimps per inch (3-6 per cm).Quartz Decorative Wall Clock.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Multi-size Home Office Large Wall Clock.12 Inch Printed Face Wall Clock.

Cutting

• 4 Following heat setting,Christmas Wood and Metal Crafts. 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)Fall-wood and Metal Crafts.Bird House Spring Wood Planter, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Distressed Wood Slat Wall Mirror.

The Future

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