Polyester

Background

Round Acoustic Fabric Wrapped Panelas, air, water, and petroleum. Developed in a 20th-century laboratory,N95 Meltblown Nonwoven Fabric. In this reaction,FFP3 Meltblown Nonwoven Fabric.KF94 Meltblown Nonwoven Fabric.

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

History

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

The Manufacturing
Process

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

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

Drying

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

POE Rain Umbrella

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

Drawing tow

• 1 Newly-Super Mini Umbrella.Promotional Manual Open Golf Umbrella.

Crimping

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

Setting

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

Cutting

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

The Future

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