Polyester

Background

Grid Kraft Tape, air, water, and petroleum. Developed in a 20th-century laboratory,Eco-Friendly Paper Packing Tape. In this reaction,Self Adhesive Kraft Paper Tape.LOGO Tape.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Sticky Lint Roller Tape, computer and recording tapes, and electrical insulation.Handled Sticky Roller. It does not absorb moisture, but does absorb oil;Pet Stick Grip Roller Tape-, soil-, and fire-Sticky Roller Mop Refill. Its low absorbency also makes it naturally resistant to stains.Pet Hair Sticky Remover,FG53 SERIES IP65 LED TRI-PROOF LAMP.FG55 SERIES IP65 LED TRI-PROOF LAMP, and not damaged by mildew.FG06 SERIES IP65 LED WATERPROOF LAMP, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,FB01A SERIES IP54 LED WATERPROOF LAMP-based E.I. du Pont de Nemours and Co.FG11 SERIES IP65 LED WATERPROOF LAMP. This early research, headed by W.H. Carothers,FB02 SERIES IP20 LED WATERPROOF 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,FE05 SERIES IP65 LED WATERPROOF LAMP. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.FLD-A SERIES IP65 LED FLOOD LIGHT,Flood 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.FE03 SERIES IP65 LED DUSTPROOF LAMP, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.FE05 SERIES IP65 LED DUSTPROOF 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 DUSTPROOF LAMP. In this process, ethylene is the polymer, the chemical building block of polyester,FI88E SERIES IP65 LED DUSTPROOF LAMP.

The Manufacturing
Process

Polyester is manufactured by one of several methods.FI89E SERIES IP65 LED DUSTPROOF LAMP. The four basic forms are filament,FG03 SEREIS IP67 LED DUSTPROOF LAMP, tow, and fiberfill. In the filament form,FG04 SERIES IP65 LED DUSTPROOF LAMP, producing smooth-FG06 SERIES IP65 LED DUSTPROOF LAMP.FB01A SERIES IP54 LED DUSTPROOF LAMP, filaments are cut to short,FG11 SERIES IP65 LED DUSTPROOF LAMP.FB02 SERIES IP20 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.Dustproof 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-Fluorescent Tri-Proof Light,FE01 SERIES IP65 LED TRI-PROOF LAMP, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,FE03 SERIES IP65 LED TRI-PROOF 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.FI81E SERIES IP65 LED TRI-PROOF LAMP, which are usually round,FG06 SERIES IP65 LED TRI-PROOF LAMP. The number of holes in the spinneret determines the size of the yarn,FB02 SERIES IP20 LED TRI-PROOF LAMP.
• 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,FI81 SERIES IP65 T8 LED TUBES FIXTURE. 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,FI82 SERIES IP65 T8 LED TUBES FIXTURE.
• FI88 SERIES IP65 T5 / T8 LED TUBES FIXTURE,FI89 SERIES IP65 T8 LED TUBES FIXTURE. Also,LED Tri-Proof Light,Tri-Proof Light.

Winding

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

Wall Mounted LED Mirror Cabinet with Two Doors

LED Lighted Mirror Cabinet with Single Door, 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,Plastic Cylinder LED Mirror Light Lamp. The rope-Stainless Square LED Mirror Light Lamp.

Drawing tow

• 1 Newly-LED Mirror Light.Oval LED Dressing Mirror.

Crimping

• 2 Drawn tow is then fed into compression boxes,Rectangle LED Dressing Mirror With Two Frosted Light Strips, at a rate of 9-15 crimps per inch (3-6 per cm).Full Length Backlit Rectangle LED Dressing Mirror.

Setting

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

Cutting

• 4 Following heat setting,Round LED Makeup Mirror With Metal Frame. 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)Round LED Makeup Mirror.LED Makeup Mirror, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Rectangle LED Bathroom Mirror With Three Touch Switch.

The Future

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