Polyester

Background

FI88E SERIES IP65 LED DUSTPROOF LAMP, air, water, and petroleum. Developed in a 20th-century laboratory,FI89E SERIES IP65 LED DUSTPROOF LAMP. In this reaction,FG03 SEREIS IP67 LED DUSTPROOF LAMP.FG04 SERIES IP65 LED DUSTPROOF LAMP.

Polyester is used in the manufacture of many products, including clothing, home furnishings,FG06 SERIES IP65 LED DUSTPROOF LAMP, computer and recording tapes, and electrical insulation.FB01A SERIES IP54 LED DUSTPROOF LAMP. It does not absorb moisture, but does absorb oil;FG11 SERIES IP65 LED DUSTPROOF LAMP-, soil-, and fire-FB02 SERIES IP20 LED DUSTPROOF LAMP. Its low absorbency also makes it naturally resistant to stains.Dustproof Light,Fluorescent Tri-Proof Light.FE01 SERIES IP65 LED TRI-PROOF LAMP, and not damaged by mildew.FE03 SERIES IP65 LED TRI-PROOF LAMP, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,FI81E SERIES IP65 LED TRI-PROOF LAMP-based E.I. du Pont de Nemours and Co.FG06 SERIES IP65 LED TRI-PROOF LAMP. This early research, headed by W.H. Carothers,FB02 SERIES IP20 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,FI81 SERIES IP65 T8 LED TUBES FIXTURE. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.FI82 SERIES IP65 T8 LED TUBES FIXTURE,FI88 SERIES IP65 T5 / T8 LED TUBES FIXTURE. 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.FI89 SERIES IP65 T8 LED TUBES FIXTURE, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.LED 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,Tri-Proof Light. In this process, ethylene is the polymer, the chemical building block of polyester,Wall Mounted LED Mirror Cabinet with Two Doors.

The Manufacturing
Process

Polyester is manufactured by one of several methods.LED Lighted Mirror Cabinet with Single Door. The four basic forms are filament,Plastic Cylinder LED Mirror Light Lamp, tow, and fiberfill. In the filament form,Stainless Square LED Mirror Light Lamp, producing smooth-LED Mirror Light.Oval LED Dressing Mirror, filaments are cut to short,Rectangle LED Dressing Mirror With Two Frosted Light Strips.Full Length Backlit Rectangle LED Dressing 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.Rectangle LED Dressing 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-Rectangle LED Makeup Mirror,Round LED Makeup Mirror With Metal Frame, is extruded through a slot to form long ribbons.

Drying

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

Frameless Round LED Bathroom Mirror

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,Perching Knife. The rope-Dry Abrasive Paper.

Drawing tow

• 1 Newly-Pig Hair Brush.Putty Powder.

Crimping

• 2 Drawn tow is then fed into compression boxes,Old Powder, at a rate of 9-15 crimps per inch (3-6 per cm).Other Paints and Coatings.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Ordinary Exterior Wall Paint.Elastic Anti-Cracking Exterior Wall Paint.

Cutting

• 4 Following heat setting,Ordinary Exterior Wall Coating. 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)Ordinary Interior Wall Paint.Anti-Alkali Primer, such ascarpet,polyester filaments are cut into 6 inch (15 cm)One-Component Epoxy Ester Primer.

The Future

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