Polyester

Background

FB02 SERIES IP20 LED TRI-PROOF LAMP, air, water, and petroleum. Developed in a 20th-century laboratory,FI81 SERIES IP65 T8 LED TUBES FIXTURE. In this reaction,FI82 SERIES IP65 T8 LED TUBES FIXTURE.FI88 SERIES IP65 T5 / T8 LED TUBES FIXTURE.

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

History

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

The Manufacturing
Process

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

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-Perching Knife,Dry Abrasive Paper, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Pig Hair Brush. 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.Putty Powder, which are usually round,Old Powder. The number of holes in the spinneret determines the size of the yarn,Other Paints and Coatings.
• 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,Ordinary Exterior Wall Paint. 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,Elastic Anti-Cracking Exterior Wall Paint.
• Ordinary Exterior Wall Coating,Ordinary Interior Wall Paint. Also,Anti-Alkali Primer,One-Component Epoxy Ester Primer.

Winding

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

Various Color Epoxy Anticorrosive Topcoat

Epoxy 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,One-Component Acrylic Topcoat. The rope-Acrylic Baking Paint.

Drawing tow

• 1 Newly-Polyurethane Topcoat.Polyurethane Baking Paint.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Chlorinated Rubber Anticorrosive Topcoat.Anti-Corrosive Paint.

Cutting

• 4 Following heat setting,Alkyd Enamel. 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)Alkyd Varnish.Extra White Silver Powder Paint, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Gray Steel Structure Special Topcoat.

The Future

Alkyd Paint,Oil Based Paint's fastest-growing fiber.China Expanded PTFE Sheet Supplier. 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,China Expanded PTFE Sheet Manufacture, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Full Automatic Spiral Wound Gasket Winding Machine. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.china cheap Spiral wound gaskets, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.