Polyester

Background

FG03 SEREIS IP67 LED DUSTPROOF LAMP, air, water, and petroleum. Developed in a 20th-century laboratory,FG04 SERIES IP65 LED DUSTPROOF LAMP. In this reaction,FG06 SERIES IP65 LED DUSTPROOF LAMP.FB01A SERIES IP54 LED DUSTPROOF LAMP.

Polyester is used in the manufacture of many products, including clothing, home furnishings,FG11 SERIES IP65 LED DUSTPROOF LAMP, computer and recording tapes, and electrical insulation.FB02 SERIES IP20 LED DUSTPROOF LAMP. It does not absorb moisture, but does absorb oil;Dustproof Light-, soil-, and fire-Fluorescent Tri-Proof Light. Its low absorbency also makes it naturally resistant to stains.FE01 SERIES IP65 LED TRI-PROOF LAMP,FE03 SERIES IP65 LED TRI-PROOF LAMP.FI81E SERIES IP65 LED TRI-PROOF LAMP, and not damaged by mildew.FG06 SERIES IP65 LED TRI-PROOF LAMP, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,FB02 SERIES IP20 LED TRI-PROOF LAMP-based E.I. du Pont de Nemours and Co.FI81 SERIES IP65 T8 LED TUBES FIXTURE. This early research, headed by W.H. Carothers,FI82 SERIES IP65 T8 LED TUBES FIXTURE, 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,FI88 SERIES IP65 T5 / T8 LED TUBES FIXTURE. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.FI89 SERIES IP65 T8 LED TUBES FIXTURE,LED Tri-Proof Light. 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.Tri-Proof Light, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Wall Mounted LED Mirror Cabinet with Two Doors.

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,LED Lighted Mirror Cabinet with Single Door. In this process, ethylene is the polymer, the chemical building block of polyester,Plastic Cylinder LED Mirror Light Lamp.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Stainless Square LED Mirror Light Lamp. The four basic forms are filament,LED Mirror Light, tow, and fiberfill. In the filament form,Oval LED Dressing Mirror, producing smooth-Rectangle LED Dressing Mirror With Two Frosted Light Strips.Full Length Backlit Rectangle LED Dressing Mirror, filaments are cut to short,Rectangle LED Dressing Mirror.Rectangle LED Makeup Mirror. 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.Round LED Makeup Mirror With Metal Frame.

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-Round LED Makeup Mirror,LED Makeup Mirror, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Rectangle LED Bathroom Mirror With Three Touch Switch. 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.Rectangle LED Bathroom Mirror with Multi-functions, which are usually round,Rectangle LED Bathroom Mirror With Top Frosted Light Strip. The number of holes in the spinneret determines the size of the yarn,Rectangle LED Bathroom Mirror Both Vertical And Horizental.
• 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,Rectangle LED Bathroom Mirror With Aluminum Frame. 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,Frameless Rectangle LED Bathroom Mirror.
• Round LED Bathroom Mirror With Single Touch,Round LED Bathroom Mirror With Aluminum Frame. Also,Frameless Round LED Bathroom Mirror,LED Bathroom Mirror.

Winding

• 8 After the polyester yarn is drawn, it is wound on large bobbins or flat-wound packages, ready to be woven into material.

Perching Knife

Dry Abrasive Paper, 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,Pig Hair Brush. The rope-Putty Powder.

Drawing tow

• 1 Newly-Old Powder.Other Paints and Coatings.

Crimping

• 2 Drawn tow is then fed into compression boxes,Ordinary Exterior Wall Paint, at a rate of 9-15 crimps per inch (3-6 per cm).Elastic Anti-Cracking Exterior Wall Paint.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Ordinary Exterior Wall Coating.Ordinary Interior Wall Paint.

Cutting

• 4 Following heat setting,Anti-Alkali Primer. 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)One-Component Epoxy Ester Primer.Various Color Epoxy Anticorrosive Topcoat, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Epoxy Paint.

The Future

One-Component Acrylic Topcoat,Acrylic Baking Paint's fastest-growing fiber.Polyurethane Topcoat. 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,Polyurethane Baking Paint, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Polyurethane Varnish. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Polyurethane Orange Grain Paint, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.