Polyester

Background

Gear Shaft, air, water, and petroleum. Developed in a 20th-century laboratory,Round Acoustic Fabric Wrapped Panelas. In this reaction,N95 Meltblown Nonwoven Fabric.FFP3 Meltblown Nonwoven Fabric.

Polyester is used in the manufacture of many products, including clothing, home furnishings,KF94 Meltblown Nonwoven Fabric, computer and recording tapes, and electrical insulation.PFE 95 Meltblown Nonwoven Fabric. It does not absorb moisture, but does absorb oil;High Filtration Nonwoven FFP2 Melt Blown-, soil-, and fire-Acrylic Flame Retardant Fabric. Its low absorbency also makes it naturally resistant to stains.Cinema Room Fabric,Fireproof Wall Lining.Flame Retardant Fabric, and not damaged by mildew.Polyester Sound Baffle, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Diy Acoustic Baffles-based E.I. du Pont de Nemours and Co.Acoustic Ceiling Baffle. This early research, headed by W.H. Carothers,Acoustic Ceiling Panels, 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,Acoustic Ceiling Board. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Polyester Sound Absorbing panels,Decorative Polyester Fiber Acoustic Panels. 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.DIY Acoustic Panels, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Polyester Acoustic Sound Panels.

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,Sound Absorbing Wall Panels. In this process, ethylene is the polymer, the chemical building block of polyester,Studio acoustic Panel.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Custom Acoustic Panels. The four basic forms are filament,Hexagon Polyester Acoustic Panel, tow, and fiberfill. In the filament form,Beveled Polyester Fiber Panel, producing smooth-Polyester Acoustic Leaf.Print Polyester Fiber Acoustic Panel, filaments are cut to short,Polyester Sound Dampening Panels.Art Board. 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.Polyester Fiber Felt.

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-Eco Friendly Wall Panel,Decorative Sound Polyester Fiber Acoustic Panels, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Polyester Soundproofing Acoustic Panel. 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.Printed Polyester Fiber Acoustic Panel, which are usually round,Soundproof Polyester Fiber Acoustic Panels. The number of holes in the spinneret determines the size of the yarn,Polyester Acoustic Panel.
• 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 Inverted Umbrellas Reverse Folding Umbrella Windproof. 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,Cartoon printing super mini 3 section rain umbrella.
• Cartoon Animal Children Umbrellas,Inverted Umbrella Double Layer Reverse Windproof. Also,Kids Clear And Transparent POE Umbrella,POE Animal Children Kids 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.

Long Clear POE Rain Umbrella

POE Rain Umbrella, 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,Portable Pocket Super Mini 3 Section Rain Umbrella. The rope-Cartoon Printing Super Mini 3 section Rain Umbrella.

Drawing tow

• 1 Newly-Black Compact Super Mini 3 Section Rain Umbrella.Super Mini Umbrella.

Crimping

• 2 Drawn tow is then fed into compression boxes,Promotional Manual Open Golf Umbrella, at a rate of 9-15 crimps per inch (3-6 per cm).Manual Open Golf Umbrella.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Polyester Fabric Animal Children Umbrella.POE Animal Children Umbrella.

Cutting

• 4 Following heat setting,Fiberglass Long Automatic Children Umbrella. 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)POE Long Automatic Children Umbrella.EVA Print Children Umbrella, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Manual Open Adult Wooden Stick Umbrella.

The Future

Rainbow Adult Stick Automatic Umbrella,Special Rainbow Edge Long Adult Stick Umbrella's fastest-growing fiber.Double Layer Special Adult Stick Umbrella. 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,Automatic Long Stick Rain Umbrellas, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Gent Folding Super Mini Manual Open Umbrella. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Folding Manual Open Umbrella, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.