Polyester

Background

Advance Gummy Production Line, air, water, and petroleum. Developed in a 20th-century laboratory,Gummy Machines. In this reaction,Cloth Bag For Gift.Cloth Christmas Gift Bag.

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

History

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

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,Corrugated PVC Suction Hose. In this process, ethylene is the polymer, the chemical building block of polyester,Clear And Transparent PVC Tubing.

The Manufacturing
Process

Polyester is manufactured by one of several methods.PVC Clear Hose. The four basic forms are filament,General Purpose PVC Garden Hose, tow, and fiberfill. In the filament form,Non-kink PVC Garden Hose, producing smooth-Home PVC Garden Hose.Flexible PVC Garden Hose, filaments are cut to short,Anti-UV PVC Garden Hose.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.Torsion Free 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-Reinforced Braided PVC Hose,Clear PVC Braided Hose, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Steel Wire Reinforced PVC 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.Non Toxic PVC Steel Wire Hose, which are usually round,Medium Duty PVC Lay Flat Hose. The number of holes in the spinneret determines the size of the yarn,Pool Backwash PVC Layflat 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,PVC Lay Flat 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,Industrial PVC Steel Wire Suction Hose.
• Gas Hose,Oxygen and Acetylene Torch Welding Hose. Also,Oxygen Acetylene Hose,Vinyl Tubing.

Winding

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

Welding Gas Hose

PVC Suction Hose Pipe, 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,Grey PVC Suction Hose. The rope-Textile Braided PVC Suction and Discharge Hose.

Drawing tow

• 1 Newly-Corrugated Clear Braided PVC Suction and Transfer Hose.Pneumatic PVC Air Hose.

Crimping

• 2 Drawn tow is then fed into compression boxes,Non Torsion PVC Garden Hose, at a rate of 9-15 crimps per inch (3-6 per cm).Green PVC Garden Hose.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)All-weather PVC Garden Hose.Reinforced Braided PVC Hose.

Cutting

• 4 Following heat setting,PVC Braided Hose Pipe. 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)PVC Nylon Braided Hose.PVC Wire Vacuum Transfer Hose, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Anti-Static PVC Steel Wire Hose.

The Future

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