Polyester

Background

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

Polyester is used in the manufacture of many products, including clothing, home furnishings,Flood Light, computer and recording tapes, and electrical insulation.FE03 SERIES IP65 LED DUSTPROOF LAMP. It does not absorb moisture, but does absorb oil;FE05 SERIES IP65 LED DUSTPROOF LAMP-, soil-, and fire-FI81E SERIES IP65 LED DUSTPROOF LAMP. Its low absorbency also makes it naturally resistant to stains.FI88E SERIES IP65 LED DUSTPROOF LAMP,FI89E SERIES IP65 LED DUSTPROOF LAMP.FG03 SEREIS IP67 LED DUSTPROOF LAMP, and not damaged by mildew.FG04 SERIES IP65 LED DUSTPROOF LAMP, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,FG06 SERIES IP65 LED DUSTPROOF LAMP-based E.I. du Pont de Nemours and Co.FB01A SERIES IP54 LED DUSTPROOF LAMP. This early research, headed by W.H. Carothers,FG11 SERIES IP65 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,FB02 SERIES IP20 LED DUSTPROOF LAMP. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Dustproof Light,Fluorescent Tri-Proof 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.FE01 SERIES IP65 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.FE03 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,FI81E SERIES IP65 LED TRI-PROOF LAMP. In this process, ethylene is the polymer, the chemical building block of polyester,FG06 SERIES IP65 LED TRI-PROOF LAMP.

The Manufacturing
Process

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

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-LED Lighted Mirror Cabinet with Single Door,Plastic Cylinder LED Mirror Light Lamp, is extruded through a slot to form long ribbons.

Drying

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

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Rectangle LED Bathroom Mirror with Multi-functions, 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 Top Frosted Light Strip. The rope-Rectangle LED Bathroom Mirror Both Vertical And Horizental.

Drawing tow

• 1 Newly-Rectangle LED Bathroom Mirror With Aluminum Frame.Frameless Rectangle LED Bathroom Mirror.

Crimping

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

Setting

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

Cutting

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

The Future

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