Polyester

Background

Wig Tape, air, water, and petroleum. Developed in a 20th-century laboratory,Plastic Spraying Tape. In this reaction,Masking Tapes.Printed Packing Tape.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Printing Tape, computer and recording tapes, and electrical insulation.Grid Kraft Tape. It does not absorb moisture, but does absorb oil;Eco-Friendly Paper Packing Tape-, soil-, and fire-Self Adhesive Kraft Paper Tape. Its low absorbency also makes it naturally resistant to stains.LOGO Tape,Sticky Lint Roller Tape.Handled Sticky Roller, and not damaged by mildew.Pet Stick Grip Roller Tape, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Sticky Roller Mop Refill-based E.I. du Pont de Nemours and Co.Pet Hair Sticky Remover. This early research, headed by W.H. Carothers,FG53 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,FG55 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.FG06 SERIES IP65 LED WATERPROOF LAMP,FB01A SERIES IP54 LED WATERPROOF 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.FG11 SERIES IP65 LED WATERPROOF LAMP, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.FB02 SERIES IP20 LED WATERPROOF 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,FE05 SERIES IP65 LED WATERPROOF LAMP. In this process, ethylene is the polymer, the chemical building block of polyester,FLD-A SERIES IP65 LED FLOOD LIGHT.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Flood Light. The four basic forms are filament,FE03 SERIES IP65 LED DUSTPROOF LAMP, tow, and fiberfill. In the filament form,FE05 SERIES IP65 LED DUSTPROOF LAMP, producing smooth-FI81E SERIES IP65 LED DUSTPROOF LAMP.FI88E SERIES IP65 LED DUSTPROOF LAMP, filaments are cut to short,FI89E SERIES IP65 LED DUSTPROOF LAMP.FG03 SEREIS IP67 LED DUSTPROOF 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.FG04 SERIES IP65 LED DUSTPROOF LAMP.

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-FG06 SERIES IP65 LED DUSTPROOF LAMP,FB01A SERIES IP54 LED DUSTPROOF LAMP, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,FG11 SERIES IP65 LED DUSTPROOF 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.FB02 SERIES IP20 LED DUSTPROOF LAMP, which are usually round,Dustproof Light. The number of holes in the spinneret determines the size of the yarn,Fluorescent Tri-Proof 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,FE01 SERIES IP65 LED TRI-PROOF LAMP. 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,FE03 SERIES IP65 LED TRI-PROOF LAMP.
• FI81E SERIES IP65 LED TRI-PROOF LAMP,FG06 SERIES IP65 LED TRI-PROOF LAMP. Also,FB02 SERIES IP20 LED TRI-PROOF LAMP,FI81 SERIES IP65 T8 LED TUBES FIXTURE.

Winding

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

FI82 SERIES IP65 T8 LED TUBES FIXTURE

FI88 SERIES IP65 T5 / T8 LED TUBES FIXTURE, 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,FI89 SERIES IP65 T8 LED TUBES FIXTURE. The rope-LED Tri-Proof Light.

Drawing tow

• 1 Newly-Tri-Proof Light.Wall Mounted LED Mirror Cabinet with Two Doors.

Crimping

• 2 Drawn tow is then fed into compression boxes,LED Lighted Mirror Cabinet with Single Door, at a rate of 9-15 crimps per inch (3-6 per cm).Plastic Cylinder LED Mirror Light Lamp.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Stainless Square LED Mirror Light Lamp.LED Mirror Light.

Cutting

• 4 Following heat setting,Oval LED Dressing 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)Rectangle LED Dressing Mirror With Two Frosted Light Strips.Full Length Backlit Rectangle LED Dressing Mirror, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Rectangle LED Dressing Mirror.

The Future

Rectangle LED Makeup Mirror,Round LED Makeup Mirror With Metal Frame's fastest-growing fiber.Round LED Makeup Mirror. 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,LED Makeup Mirror, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Rectangle LED Bathroom Mirror With Three Touch Switch. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Rectangle LED Bathroom Mirror with Multi-functions, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.