Polyester

Background

Flood Light, air, water, and petroleum. Developed in a 20th-century laboratory,FE03 SERIES IP65 LED DUSTPROOF LAMP. In this reaction,FE05 SERIES IP65 LED DUSTPROOF LAMP.FI81E SERIES IP65 LED DUSTPROOF LAMP.

Polyester is used in the manufacture of many products, including clothing, home furnishings,FI88E SERIES IP65 LED DUSTPROOF LAMP, computer and recording tapes, and electrical insulation.FI89E SERIES IP65 LED DUSTPROOF LAMP. It does not absorb moisture, but does absorb oil;FG03 SEREIS IP67 LED DUSTPROOF LAMP-, soil-, and fire-FG04 SERIES IP65 LED DUSTPROOF LAMP. Its low absorbency also makes it naturally resistant to stains.FG06 SERIES IP65 LED DUSTPROOF LAMP,FB01A SERIES IP54 LED DUSTPROOF LAMP.FG11 SERIES IP65 LED DUSTPROOF LAMP, and not damaged by mildew.FB02 SERIES IP20 LED DUSTPROOF LAMP, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Dustproof Light-based E.I. du Pont de Nemours and Co.Fluorescent Tri-Proof Light. This early research, headed by W.H. Carothers,FE01 SERIES IP65 LED TRI-PROOF 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,FE03 SERIES IP65 LED TRI-PROOF LAMP. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.FI81E SERIES IP65 LED TRI-PROOF LAMP,FG06 SERIES IP65 LED TRI-PROOF LAMP. 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.FB02 SERIES IP20 LED TRI-PROOF LAMP, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.FI81 SERIES IP65 T8 LED TUBES FIXTURE.

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,FI82 SERIES IP65 T8 LED TUBES FIXTURE. In this process, ethylene is the polymer, the chemical building block of polyester,FI88 SERIES IP65 T5 / T8 LED TUBES FIXTURE.

The Manufacturing
Process

Polyester is manufactured by one of several methods.FI89 SERIES IP65 T8 LED TUBES FIXTURE. The four basic forms are filament,LED Tri-Proof Light, tow, and fiberfill. In the filament form,Tri-Proof Light, producing smooth-Wall Mounted LED Mirror Cabinet with Two Doors.LED Lighted Mirror Cabinet with Single Door, filaments are cut to short,Plastic Cylinder LED Mirror Light Lamp.Stainless Square LED Mirror Light Lamp. 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 Mirror Light.

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-Oval LED Dressing Mirror,Rectangle LED Dressing Mirror With Two Frosted Light Strips, is extruded through a slot to form long ribbons.

Drying

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

Winding

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

Rectangle LED Bathroom Mirror With Aluminum Frame

Frameless Rectangle LED Bathroom Mirror, 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,Round LED Bathroom Mirror With Single Touch. The rope-Round LED Bathroom Mirror With Aluminum Frame.

Drawing tow

• 1 Newly-Frameless Round LED Bathroom Mirror.LED Bathroom Mirror.

Crimping

• 2 Drawn tow is then fed into compression boxes,Perching Knife, at a rate of 9-15 crimps per inch (3-6 per cm).Dry Abrasive Paper.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Pig Hair Brush.Putty Powder.

Cutting

• 4 Following heat setting,Old Powder. 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)Other Paints and Coatings.Ordinary Exterior Wall Paint, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Elastic Anti-Cracking Exterior Wall Paint.

The Future

Ordinary Exterior Wall Coating,Ordinary Interior Wall Paint's fastest-growing fiber.Anti-Alkali Primer. 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,One-Component Epoxy Ester Primer, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Various Color Epoxy Anticorrosive Topcoat. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Epoxy Paint, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.