Polyester

Background

Dustproof Light, air, water, and petroleum. Developed in a 20th-century laboratory,Fluorescent Tri-Proof Light. In this reaction,FE01 SERIES IP65 LED TRI-PROOF LAMP.FE03 SERIES IP65 LED TRI-PROOF LAMP.

Polyester is used in the manufacture of many products, including clothing, home furnishings,FI81E SERIES IP65 LED TRI-PROOF LAMP, computer and recording tapes, and electrical insulation.FG06 SERIES IP65 LED TRI-PROOF LAMP. It does not absorb moisture, but does absorb oil;FB02 SERIES IP20 LED TRI-PROOF LAMP-, soil-, and fire-FI81 SERIES IP65 T8 LED TUBES FIXTURE. Its low absorbency also makes it naturally resistant to stains.FI82 SERIES IP65 T8 LED TUBES FIXTURE,FI88 SERIES IP65 T5 / T8 LED TUBES FIXTURE.FI89 SERIES IP65 T8 LED TUBES FIXTURE, and not damaged by mildew.LED Tri-Proof Light, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Tri-Proof Light-based E.I. du Pont de Nemours and Co.Wall Mounted LED Mirror Cabinet with Two Doors. This early research, headed by W.H. Carothers,LED Lighted Mirror Cabinet with Single Door, 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,Plastic Cylinder LED Mirror Light Lamp. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Stainless Square LED Mirror Light Lamp,LED Mirror 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.Oval LED Dressing Mirror, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Rectangle LED Dressing Mirror With Two Frosted Light Strips.

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,Full Length Backlit Rectangle LED Dressing Mirror. In this process, ethylene is the polymer, the chemical building block of polyester,Rectangle LED Dressing Mirror.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Rectangle LED Makeup Mirror. The four basic forms are filament,Round LED Makeup Mirror With Metal Frame, tow, and fiberfill. In the filament form,Round LED Makeup Mirror, producing smooth-LED Makeup Mirror.Rectangle LED Bathroom Mirror With Three Touch Switch, filaments are cut to short,Rectangle LED Bathroom Mirror with Multi-functions.Rectangle LED Bathroom Mirror With Top Frosted Light Strip. 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.Rectangle LED Bathroom Mirror Both Vertical And Horizental.

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-Rectangle LED Bathroom Mirror With Aluminum Frame,Frameless Rectangle LED Bathroom Mirror, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Round LED Bathroom Mirror With Single Touch. 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.Round LED Bathroom Mirror With Aluminum Frame, which are usually round,Frameless Round LED Bathroom Mirror. The number of holes in the spinneret determines the size of the yarn,LED Bathroom Mirror.
• 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,Perching Knife. 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,Dry Abrasive Paper.
• Pig Hair Brush,Putty Powder. Also,Old Powder,Other Paints and Coatings.

Winding

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

Ordinary Exterior Wall Paint

Elastic Anti-Cracking Exterior Wall Paint, 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,Ordinary Exterior Wall Coating. The rope-Ordinary Interior Wall Paint.

Drawing tow

• 1 Newly-Anti-Alkali Primer.One-Component Epoxy Ester Primer.

Crimping

• 2 Drawn tow is then fed into compression boxes,Various Color Epoxy Anticorrosive Topcoat, at a rate of 9-15 crimps per inch (3-6 per cm).Epoxy Paint.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)One-Component Acrylic Topcoat.Acrylic Baking Paint.

Cutting

• 4 Following heat setting,Polyurethane Topcoat. 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)Polyurethane Baking Paint.Polyurethane Varnish, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Polyurethane Orange Grain Paint.

The Future

Chlorinated Rubber Anticorrosive Topcoat,Anti-Corrosive Paint's fastest-growing fiber.Alkyd Enamel. 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,Alkyd Varnish, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Extra White Silver Powder Paint. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Gray Steel Structure Special Topcoat, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.