Polyester

Background

Masking Tapes, air, water, and petroleum. Developed in a 20th-century laboratory,Printed Packing Tape. In this reaction,Printing Tape.Grid Kraft Tape.

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

History

In 1926,FG53 SERIES IP65 LED TRI-PROOF LAMP-based E.I. du Pont de Nemours and Co.FG55 SERIES IP65 LED TRI-PROOF LAMP. This early research, headed by W.H. Carothers,FG06 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,FB01A SERIES IP54 LED WATERPROOF LAMP. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.FG11 SERIES IP65 LED WATERPROOF LAMP,FB02 SERIES IP20 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.FE05 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.FLD-A SERIES IP65 LED FLOOD 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,Flood Light. In this process, ethylene is the polymer, the chemical building block of polyester,FE03 SERIES IP65 LED DUSTPROOF LAMP.

The Manufacturing
Process

Polyester is manufactured by one of several methods.FE05 SERIES IP65 LED DUSTPROOF LAMP. The four basic forms are filament,FI81E SERIES IP65 LED DUSTPROOF LAMP, tow, and fiberfill. In the filament form,FI88E SERIES IP65 LED DUSTPROOF LAMP, producing smooth-FI89E SERIES IP65 LED DUSTPROOF LAMP.FG03 SEREIS IP67 LED DUSTPROOF LAMP, filaments are cut to short,FG04 SERIES IP65 LED DUSTPROOF LAMP.FG06 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.FB01A SERIES IP54 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-FG11 SERIES IP65 LED DUSTPROOF LAMP,FB02 SERIES IP20 LED DUSTPROOF LAMP, is extruded through a slot to form long ribbons.

Drying

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

FI89 SERIES IP65 T8 LED TUBES FIXTURE

LED Tri-Proof Light, 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,Tri-Proof Light. The rope-Wall Mounted LED Mirror Cabinet with Two Doors.

Drawing tow

• 1 Newly-LED Lighted Mirror Cabinet with Single Door.Plastic Cylinder LED Mirror Light Lamp.

Crimping

• 2 Drawn tow is then fed into compression boxes,Stainless Square LED Mirror Light Lamp, at a rate of 9-15 crimps per inch (3-6 per cm).LED Mirror Light.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Oval LED Dressing Mirror.Rectangle LED Dressing Mirror With Two Frosted Light Strips.

Cutting

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

The Future

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