Polyester

Background

FFP3 Meltblown Nonwoven Fabric, air, water, and petroleum. Developed in a 20th-century laboratory,KF94 Meltblown Nonwoven Fabric. In this reaction,PFE 95 Meltblown Nonwoven Fabric.High Filtration Nonwoven FFP2 Melt Blown.

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

History

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

The Manufacturing
Process

Polyester is manufactured by one of several methods.Polyester Acoustic Leaf. The four basic forms are filament,Print Polyester Fiber Acoustic Panel, tow, and fiberfill. In the filament form,Polyester Sound Dampening Panels, producing smooth-Art Board.Polyester Fiber Felt, filaments are cut to short,Eco Friendly Wall Panel.Decorative Sound Polyester Fiber Acoustic Panels. 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 Soundproofing Acoustic 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-Printed Polyester Fiber Acoustic Panel,Soundproof Polyester Fiber Acoustic Panels, is extruded through a slot to form long ribbons.

Drying

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

Cartoon Printing Super Mini 3 section Rain Umbrella

Black Compact 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,Super Mini Umbrella. The rope-Promotional Manual Open Golf Umbrella.

Drawing tow

• 1 Newly-Manual Open Golf Umbrella.Polyester Fabric Animal Children Umbrella.

Crimping

• 2 Drawn tow is then fed into compression boxes,POE Animal Children Umbrella, at a rate of 9-15 crimps per inch (3-6 per cm).Fiberglass Long Automatic Children Umbrella.

Setting

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

Cutting

• 4 Following heat setting,Manual Open Adult Wooden Stick 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)Rainbow Adult Stick Automatic Umbrella.Special Rainbow Edge Long Adult Stick Umbrella, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Double Layer Special Adult Stick Umbrella.

The Future

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