Polyester

Background

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

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

History

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

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,Beveled Polyester Fiber Panel. In this process, ethylene is the polymer, the chemical building block of polyester,Polyester Acoustic Leaf.

The Manufacturing
Process

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

Drying

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

Black Compact Super Mini 3 Section Rain Umbrella

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

Drawing tow

• 1 Newly-Polyester Fabric Animal Children Umbrella.POE Animal Children Umbrella.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)EVA Print Children Umbrella.Manual Open Adult Wooden Stick Umbrella.

Cutting

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

The Future

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