Polyester

Background

Diy Acoustic Baffles, air, water, and petroleum. Developed in a 20th-century laboratory,Acoustic Ceiling Baffle. In this reaction,Acoustic Ceiling Panels.Acoustic Ceiling Board.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Polyester Sound Absorbing panels, computer and recording tapes, and electrical insulation.Decorative Polyester Fiber Acoustic Panels. It does not absorb moisture, but does absorb oil;DIY Acoustic Panels-, soil-, and fire-Polyester Acoustic Sound Panels. Its low absorbency also makes it naturally resistant to stains.Sound Absorbing Wall Panels,Studio acoustic Panel.Custom Acoustic Panels, and not damaged by mildew.Hexagon Polyester Acoustic Panel, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

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

The Manufacturing
Process

Polyester is manufactured by one of several methods.Soundproof Polyester Fiber Acoustic Panels. The four basic forms are filament,Polyester Acoustic Panel, tow, and fiberfill. In the filament form,Double Layer Inverted Umbrellas Reverse Folding Umbrella Windproof, producing smooth-Cartoon printing super mini 3 section rain umbrella.Cartoon Animal Children Umbrellas, filaments are cut to short,Inverted Umbrella Double Layer Reverse Windproof.Kids Clear And Transparent POE 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 Kids 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-Long Clear POE Rain Umbrella,POE Rain Umbrella, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Portable Pocket Super Mini 3 Section Rain 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.Cartoon Printing Super Mini 3 section Rain Umbrella, which are usually round,Black Compact Super Mini 3 Section Rain Umbrella. The number of holes in the spinneret determines the size of the yarn,Super Mini 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,Promotional Manual Open Golf 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,Manual Open Golf Umbrella.
• Polyester Fabric Animal Children Umbrella,POE Animal Children Umbrella. Also,Fiberglass Long Automatic Children Umbrella,POE Long Automatic Children 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.

EVA Print Children Umbrella

Manual Open Adult Wooden Stick 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,Rainbow Adult Stick Automatic Umbrella. The rope-Special Rainbow Edge Long Adult Stick Umbrella.

Drawing tow

• 1 Newly-Double Layer Special Adult Stick Umbrella.Automatic Long Stick Rain Umbrellas.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Wooden Two Folding Automatic Golf Umbrella.Folding Umbrella.

Cutting

• 4 Following heat setting,Natural Cork Composition Sheets. 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)Cork and Nitrile Rubber sheets.Farmhouse Large Decorative Wall Clocks, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Pallet Wood Barn Farmhouse Wall Clock.

The Future

Black Windmill Wall Hook,Inspired Home Windmill Decor Wall Hooks's fastest-growing fiber.Windmill Metal Wall Decor with Hook. 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,Quartz Decorative Wall Clock, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Multi-size Home Office Large Wall Clock. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.12 Inch Printed Face Wall Clock, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.