Polyester

Background

Gummy Moving Cart, air, water, and petroleum. Developed in a 20th-century laboratory,Advance Rasing Film Vacuum Cooker. In this reaction,Vacuum Batch Type Cooker.Gummy Kitchen System.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Advance Gummy Production Line, computer and recording tapes, and electrical insulation.Gummy Machines. It does not absorb moisture, but does absorb oil;Cloth Bag For Gift-, soil-, and fire-Cloth Christmas Gift Bag. Its low absorbency also makes it naturally resistant to stains.Gift Cloth Pouch,Drawstring Sunglasses Pouch.Microfiber Pouch, and not damaged by mildew.Printing Paper Shopping Bag, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Shopping Gift Paper Bag For Packaging-based E.I. du Pont de Nemours and Co.Paper Bags. This early research, headed by W.H. Carothers,Soft Microfiber Cleaning Cloth For Jewelry, 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,Jewelry Polishing Cleaning Cloth Printed. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Microfiber Camera Cleaning Cloth,Camera Cleaning Cloth. 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.Cleaning Cloth For Eyeglasses, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Packaging For Sunglasses.

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,Spectacle Frame Box. In this process, ethylene is the polymer, the chemical building block of polyester,Black Sunglasses Case Packaging.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Sunglasses Product Packaging. The four basic forms are filament,Paper Packaging Box For Eyeglasses Frames, tow, and fiberfill. In the filament form,Corrugated PVC Suction Hose, producing smooth-Clear And Transparent PVC Tubing.PVC Clear Hose, filaments are cut to short,General Purpose PVC Garden Hose.Non-kink PVC Garden Hose. 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.Home PVC Garden Hose.

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-Flexible PVC Garden Hose,Anti-UV PVC Garden Hose, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,PVC Garden Hose. 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.Torsion Free Garden Hose, which are usually round,Reinforced Braided PVC Hose. The number of holes in the spinneret determines the size of the yarn,Clear PVC Braided Hose.
• 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,Steel Wire Reinforced PVC Hose. 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,Non Toxic PVC Steel Wire Hose.
• Medium Duty PVC Lay Flat Hose,Pool Backwash PVC Layflat Hose. Also,PVC Lay Flat Hose,Industrial PVC Steel Wire Suction Hose.

Winding

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

Gas Hose

Oxygen and Acetylene Torch Welding Hose, 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,Oxygen Acetylene Hose. The rope-Vinyl Tubing.

Drawing tow

• 1 Newly-Welding Gas Hose.PVC Suction Hose Pipe.

Crimping

• 2 Drawn tow is then fed into compression boxes,Grey PVC Suction Hose, at a rate of 9-15 crimps per inch (3-6 per cm).Textile Braided PVC Suction and Discharge Hose.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Corrugated Clear Braided PVC Suction and Transfer Hose.Pneumatic PVC Air Hose.

Cutting

• 4 Following heat setting,Non Torsion PVC Garden Hose. 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)Green PVC Garden Hose.All-weather PVC Garden Hose, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Reinforced Braided PVC Hose.

The Future

PVC Braided Hose Pipe,PVC Nylon Braided Hose's fastest-growing fiber.PVC Wire Vacuum Transfer Hose. 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,Anti-Static PVC Steel Wire Hose, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Fiber Reinforced PVC Steel Wire Hose. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Non Toxic PVC Steel Wire Hose, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.