Polyester

Background

FE03 SERIES IP65 LED TRI-PROOF LAMP, air, water, and petroleum. Developed in a 20th-century laboratory,FI81E SERIES IP65 LED TRI-PROOF LAMP. In this reaction,FG06 SERIES IP65 LED TRI-PROOF LAMP.FB02 SERIES IP20 LED TRI-PROOF LAMP.

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

History

In 1926,Plastic Cylinder LED Mirror Light Lamp-based E.I. du Pont de Nemours and Co.Stainless Square LED Mirror Light Lamp. This early research, headed by W.H. Carothers,LED Mirror Light, 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,Oval LED Dressing Mirror. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Rectangle LED Dressing Mirror With Two Frosted Light Strips,Full Length Backlit Rectangle 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, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Rectangle LED Makeup 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,Round LED Makeup Mirror With Metal Frame. In this process, ethylene is the polymer, the chemical building block of polyester,Round LED Makeup Mirror.

The Manufacturing
Process

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

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

Drying

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

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 Interior Wall Paint

Anti-Alkali Primer, 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,One-Component Epoxy Ester Primer. The rope-Various Color Epoxy Anticorrosive Topcoat.

Drawing tow

• 1 Newly-Epoxy Paint.One-Component Acrylic Topcoat.

Crimping

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

Setting

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

Cutting

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

The Future

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