Polyester

Background

Shopping Gift Paper Bag For Packaging, air, water, and petroleum. Developed in a 20th-century laboratory,Paper Bags. In this reaction,Soft Microfiber Cleaning Cloth For Jewelry.Jewelry Polishing Cleaning Cloth Printed.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Microfiber Camera Cleaning Cloth, computer and recording tapes, and electrical insulation.Camera Cleaning Cloth. It does not absorb moisture, but does absorb oil;Cleaning Cloth For Eyeglasses-, soil-, and fire-Packaging For Sunglasses. Its low absorbency also makes it naturally resistant to stains.Spectacle Frame Box,Black Sunglasses Case Packaging.Sunglasses Product Packaging, and not damaged by mildew.Paper Packaging Box For Eyeglasses Frames, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Corrugated PVC Suction Hose-based E.I. du Pont de Nemours and Co.Clear And Transparent PVC Tubing. This early research, headed by W.H. Carothers,PVC Clear Hose, 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,General Purpose PVC Garden Hose. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Non-kink PVC Garden Hose,Home PVC Garden Hose. 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.Flexible PVC Garden Hose, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Anti-UV PVC Garden Hose.

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,PVC Garden Hose. In this process, ethylene is the polymer, the chemical building block of polyester,Torsion Free Garden Hose.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Reinforced Braided PVC Hose. The four basic forms are filament,Clear PVC Braided Hose, tow, and fiberfill. In the filament form,Steel Wire Reinforced PVC Hose, producing smooth-Non Toxic PVC Steel Wire Hose.Medium Duty PVC Lay Flat Hose, filaments are cut to short,Pool Backwash PVC Layflat Hose.PVC Lay Flat 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.Industrial PVC Steel Wire Suction 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-Gas Hose,Oxygen and Acetylene Torch Welding Hose, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Oxygen Acetylene 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.Vinyl Tubing, which are usually round,Welding Gas Hose. The number of holes in the spinneret determines the size of the yarn,PVC Suction Hose Pipe.
• 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,Grey PVC Suction 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,Textile Braided PVC Suction and Discharge Hose.
• Corrugated Clear Braided PVC Suction and Transfer Hose,Pneumatic PVC Air Hose. Also,Non Torsion PVC Garden Hose,Green 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.

All-weather PVC Garden Hose

Reinforced Braided PVC 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,PVC Braided Hose Pipe. The rope-PVC Nylon Braided Hose.

Drawing tow

• 1 Newly-PVC Wire Vacuum Transfer Hose.Anti-Static PVC Steel Wire Hose.

Crimping

• 2 Drawn tow is then fed into compression boxes,Fiber Reinforced PVC Steel Wire Hose, at a rate of 9-15 crimps per inch (3-6 per cm).Non Toxic PVC Steel Wire Hose.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)PVC Fiber Reinforced Hose.General Purpose PVC Lay Flat Hose.

Cutting

• 4 Following heat setting,Blue PVC Layflat 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)PVC Lay Flat Water Discharge Hose.Lay Flat Irrigation Hose, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Oxygen Acetylene Hose.

The Future

Food Grade Crystal Clear Vinyl Tubing,Flexible PVC Vinyl Tubing's fastest-growing fiber.Welding Gas 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,Grey PVC Suction Hose, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Green PVC Suction Hose. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Clear Orange Braid PVC Water Suction Discharge Transfer Hose, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.