Polyester

Background

FG06 SERIES IP65 LED WATERPROOF LAMP, air, water, and petroleum. Developed in a 20th-century laboratory,FB01A SERIES IP54 LED WATERPROOF LAMP. In this reaction,FG11 SERIES IP65 LED WATERPROOF LAMP.FB02 SERIES IP20 LED WATERPROOF LAMP.

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

History

In 1926,FG03 SEREIS IP67 LED DUSTPROOF LAMP-based E.I. du Pont de Nemours and Co.FG04 SERIES IP65 LED DUSTPROOF LAMP. This early research, headed by W.H. Carothers,FG06 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,FB01A SERIES IP54 LED DUSTPROOF LAMP. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.FG11 SERIES IP65 LED DUSTPROOF LAMP,FB02 SERIES IP20 LED DUSTPROOF 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.Dustproof Light, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Fluorescent Tri-Proof Light.

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,FE01 SERIES IP65 LED TRI-PROOF LAMP. In this process, ethylene is the polymer, the chemical building block of polyester,FE03 SERIES IP65 LED TRI-PROOF LAMP.

The Manufacturing
Process

Polyester is manufactured by one of several methods.FI81E SERIES IP65 LED TRI-PROOF LAMP. The four basic forms are filament,FG06 SERIES IP65 LED TRI-PROOF LAMP, tow, and fiberfill. In the filament form,FB02 SERIES IP20 LED TRI-PROOF LAMP, producing smooth-FI81 SERIES IP65 T8 LED TUBES FIXTURE.FI82 SERIES IP65 T8 LED TUBES FIXTURE, filaments are cut to short,FI88 SERIES IP65 T5 / T8 LED TUBES FIXTURE.FI89 SERIES IP65 T8 LED TUBES FIXTURE. 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 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-Tri-Proof Light,Wall Mounted LED Mirror Cabinet with Two Doors, is extruded through a slot to form long ribbons.

Drying

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

Winding

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

Round LED Makeup Mirror

LED Makeup 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,Rectangle LED Bathroom Mirror With Three Touch Switch. The rope-Rectangle LED Bathroom Mirror with Multi-functions.

Drawing tow

• 1 Newly-Rectangle LED Bathroom Mirror With Top Frosted Light Strip.Rectangle LED Bathroom Mirror Both Vertical And Horizental.

Crimping

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

Setting

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

Cutting

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

The Future

Pig Hair Brush,Putty Powder's fastest-growing fiber.Old Powder. 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,Other Paints and Coatings, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Ordinary Exterior Wall Paint. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Elastic Anti-Cracking Exterior 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.