Polyester

Background

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

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

History

In 1926,FG06 SERIES IP65 LED WATERPROOF LAMP-based E.I. du Pont de Nemours and Co.FB01A SERIES IP54 LED WATERPROOF LAMP. This early research, headed by W.H. Carothers,FG11 SERIES IP65 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,FB02 SERIES IP20 LED WATERPROOF LAMP. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.FE05 SERIES IP65 LED WATERPROOF LAMP,FLD-A SERIES IP65 LED 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.Flood Light, 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 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,FE05 SERIES IP65 LED DUSTPROOF LAMP. In this process, ethylene is the polymer, the chemical building block of polyester,FI81E SERIES IP65 LED DUSTPROOF LAMP.

The Manufacturing
Process

Polyester is manufactured by one of several methods.FI88E SERIES IP65 LED DUSTPROOF LAMP. The four basic forms are filament,FI89E SERIES IP65 LED DUSTPROOF LAMP, tow, and fiberfill. In the filament form,FG03 SEREIS IP67 LED DUSTPROOF LAMP, producing smooth-FG04 SERIES IP65 LED DUSTPROOF LAMP.FG06 SERIES IP65 LED DUSTPROOF LAMP, filaments are cut to short,FB01A SERIES IP54 LED DUSTPROOF LAMP.FG11 SERIES IP65 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.FB02 SERIES IP20 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-Dustproof Light,Fluorescent Tri-Proof Light, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,FE01 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.FE03 SERIES IP65 LED TRI-PROOF LAMP, which are usually round,FI81E SERIES IP65 LED TRI-PROOF LAMP. The number of holes in the spinneret determines the size of the yarn,FG06 SERIES IP65 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,FB02 SERIES IP20 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,FI81 SERIES IP65 T8 LED TUBES FIXTURE.
• FI82 SERIES IP65 T8 LED TUBES FIXTURE,FI88 SERIES IP65 T5 / T8 LED TUBES FIXTURE. Also,FI89 SERIES IP65 T8 LED TUBES FIXTURE,LED 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.

Tri-Proof Light

Wall Mounted LED Mirror Cabinet with Two Doors, 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,LED Lighted Mirror Cabinet with Single Door. The rope-Plastic Cylinder LED Mirror Light Lamp.

Drawing tow

• 1 Newly-Stainless Square LED Mirror Light Lamp.LED Mirror Light.

Crimping

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

Setting

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

Cutting

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

The Future

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