Polyester

Background

FB01A SERIES IP54 LED WATERPROOF LAMP, air, water, and petroleum. Developed in a 20th-century laboratory,FG11 SERIES IP65 LED WATERPROOF LAMP. In this reaction,FB02 SERIES IP20 LED WATERPROOF LAMP.FE05 SERIES IP65 LED WATERPROOF LAMP.

Polyester is used in the manufacture of many products, including clothing, home furnishings,FLD-A SERIES IP65 LED FLOOD LIGHT, computer and recording tapes, and electrical insulation.Flood Light. It does not absorb moisture, but does absorb oil;FE03 SERIES IP65 LED DUSTPROOF LAMP-, soil-, and fire-FE05 SERIES IP65 LED DUSTPROOF LAMP. Its low absorbency also makes it naturally resistant to stains.FI81E SERIES IP65 LED DUSTPROOF LAMP,FI88E SERIES IP65 LED DUSTPROOF LAMP.FI89E SERIES IP65 LED DUSTPROOF LAMP, and not damaged by mildew.FG03 SEREIS IP67 LED DUSTPROOF LAMP, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,FG04 SERIES IP65 LED DUSTPROOF LAMP-based E.I. du Pont de Nemours and Co.FG06 SERIES IP65 LED DUSTPROOF LAMP. This early research, headed by W.H. Carothers,FB01A SERIES IP54 LED DUSTPROOF 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,FG11 SERIES IP65 LED DUSTPROOF LAMP. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.FB02 SERIES IP20 LED DUSTPROOF LAMP,Dustproof 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.Fluorescent Tri-Proof Light, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.FE01 SERIES IP65 LED TRI-PROOF LAMP.

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,FE03 SERIES IP65 LED TRI-PROOF LAMP. In this process, ethylene is the polymer, the chemical building block of polyester,FI81E SERIES IP65 LED TRI-PROOF LAMP.

The Manufacturing
Process

Polyester is manufactured by one of several methods.FG06 SERIES IP65 LED TRI-PROOF LAMP. The four basic forms are filament,FB02 SERIES IP20 LED TRI-PROOF LAMP, tow, and fiberfill. In the filament form,FI81 SERIES IP65 T8 LED TUBES FIXTURE, producing smooth-FI82 SERIES IP65 T8 LED TUBES FIXTURE.FI88 SERIES IP65 T5 / T8 LED TUBES FIXTURE, filaments are cut to short,FI89 SERIES IP65 T8 LED TUBES FIXTURE.LED Tri-Proof Light. 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.Tri-Proof 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-Wall Mounted LED Mirror Cabinet with Two Doors,LED Lighted Mirror Cabinet with Single Door, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Plastic Cylinder LED Mirror Light Lamp. 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.Stainless Square LED Mirror Light Lamp, which are usually round,LED Mirror Light. The number of holes in the spinneret determines the size of the yarn,Oval LED Dressing 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,Rectangle LED Dressing Mirror With Two Frosted Light Strips. 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,Full Length Backlit Rectangle LED Dressing Mirror.
• Rectangle LED Dressing Mirror,Rectangle LED Makeup Mirror. Also,Round LED Makeup Mirror With Metal Frame,Round LED Makeup Mirror.

Winding

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

LED Makeup Mirror

Rectangle LED Bathroom Mirror With Three Touch Switch, 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,Rectangle LED Bathroom Mirror with Multi-functions. The rope-Rectangle LED Bathroom Mirror With Top Frosted Light Strip.

Drawing tow

• 1 Newly-Rectangle LED Bathroom Mirror Both Vertical And Horizental.Rectangle LED Bathroom Mirror With Aluminum Frame.

Crimping

• 2 Drawn tow is then fed into compression boxes,Frameless Rectangle LED Bathroom Mirror, at a rate of 9-15 crimps per inch (3-6 per cm).Round LED Bathroom Mirror With Single Touch.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Round LED Bathroom Mirror With Aluminum Frame.Frameless Round LED Bathroom Mirror.

Cutting

• 4 Following heat setting,LED Bathroom Mirror. 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)Perching Knife.Dry Abrasive Paper, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Pig Hair Brush.

The Future

Putty Powder,Old Powder's fastest-growing fiber.Other Paints and Coatings. 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,Ordinary Exterior Wall Paint, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Elastic Anti-Cracking Exterior Wall Paint. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Ordinary Exterior Wall Coating, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.