Polyester

Background

Biscuit Stacking Machine, air, water, and petroleum. Developed in a 20th-century laboratory,Biscuit Equipment. In this reaction,Toffee Fondant Depositing Line.Automatic Starch Mogul Line.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Die Formed Lollipop Production Line, computer and recording tapes, and electrical insulation.Hard Candy Depositing Line. It does not absorb moisture, but does absorb oil;Automatic Drying System-, soil-, and fire-Automatic Cereal Bar Line. Its low absorbency also makes it naturally resistant to stains.Extruding Type Konjac Ball Production Line,Aluminium Moulds and Silicon.Gummy Moving Cart, and not damaged by mildew.Advance Rasing Film Vacuum Cooker, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Vacuum Batch Type Cooker-based E.I. du Pont de Nemours and Co.Gummy Kitchen System. This early research, headed by W.H. Carothers,Advance Gummy Production Line, 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,Gummy Machines. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Cloth Bag For Gift,Cloth Christmas Gift Bag. 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.Gift Cloth Pouch, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Drawstring Sunglasses Pouch.

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,Microfiber Pouch. In this process, ethylene is the polymer, the chemical building block of polyester,Printing Paper Shopping Bag.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Shopping Gift Paper Bag For Packaging. The four basic forms are filament,Paper Bags, tow, and fiberfill. In the filament form,Soft Microfiber Cleaning Cloth For Jewelry, producing smooth-Jewelry Polishing Cleaning Cloth Printed.Microfiber Camera Cleaning Cloth, filaments are cut to short,Camera Cleaning Cloth.Cleaning Cloth For Eyeglasses. 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.Packaging For Sunglasses.

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-Spectacle Frame Box,Black Sunglasses Case Packaging, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Sunglasses Product Packaging. 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.Paper Packaging Box For Eyeglasses Frames, which are usually round,Corrugated PVC Suction Hose. The number of holes in the spinneret determines the size of the yarn,Clear And Transparent PVC Tubing.
• 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,PVC Clear 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,General Purpose PVC Garden Hose.
• Non-kink PVC Garden Hose,Home PVC Garden Hose. Also,Flexible PVC Garden Hose,Anti-UV PVC Garden 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.

PVC Garden Hose

Torsion Free Garden 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,Reinforced Braided PVC Hose. The rope-Clear PVC Braided Hose.

Drawing tow

• 1 Newly-Steel Wire Reinforced PVC Hose.Non Toxic PVC Steel Wire Hose.

Crimping

• 2 Drawn tow is then fed into compression boxes,Medium Duty PVC Lay Flat Hose, at a rate of 9-15 crimps per inch (3-6 per cm).Pool Backwash PVC Layflat Hose.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)PVC Lay Flat Hose.Industrial PVC Steel Wire Suction Hose.

Cutting

• 4 Following heat setting,Gas 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)Oxygen and Acetylene Torch Welding Hose.Oxygen Acetylene Hose, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Vinyl Tubing.

The Future

Welding Gas Hose,PVC Suction Hose Pipe's fastest-growing fiber.Grey PVC Suction 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,Textile Braided PVC Suction and Discharge Hose, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Corrugated Clear Braided PVC Suction and Transfer Hose. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Pneumatic PVC Air Hose, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.