Polyester

Background

Fluorescent Tri-Proof Light, air, water, and petroleum. Developed in a 20th-century laboratory,FE01 SERIES IP65 LED TRI-PROOF LAMP. In this reaction,FE03 SERIES IP65 LED TRI-PROOF LAMP.FI81E SERIES IP65 LED TRI-PROOF LAMP.

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

History

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

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

The Manufacturing
Process

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

Drying

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

Winding

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

Elastic Anti-Cracking Exterior Wall Paint

Ordinary Exterior Wall Coating, 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 Interior Wall Paint. The rope-Anti-Alkali Primer.

Drawing tow

• 1 Newly-One-Component Epoxy Ester Primer.Various Color Epoxy Anticorrosive Topcoat.

Crimping

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

Setting

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

Cutting

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

The Future

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