Polyester

Background

Stabilizer Rubber Bushing, air, water, and petroleum. Developed in a 20th-century laboratory,Rubber To Metal Bonding Bushings. In this reaction,Rubber Bushing.Automotive Rubber Parts.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Silicone Rubber Rollers, computer and recording tapes, and electrical insulation.Rubber Coated Rollers. It does not absorb moisture, but does absorb oil;Non-Slip Rubber Feet-, soil-, and fire-Anti Abrasion Rubber Bumpers. Its low absorbency also makes it naturally resistant to stains.Rubber Bumpers,Square Rubber Grommets.Custom Molded Rubber Parts, and not damaged by mildew.Compression Molding Custom Rubber Parts, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Extrusion Molding Custom Rubber Parts-based E.I. du Pont de Nemours and Co.Custom Neoprene Rubber Products. This early research, headed by W.H. Carothers,Custom Rubber Parts Anti-Slip Handle Grip, 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,EPDM Rubber Sheets. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Rubber Parts,Custom Rubber Parts. 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.Color Plexiglass Sheet For Making Furnitures, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Transparent Plexiglass Sheet For LED Display.

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,Plexiglass Sheet. In this process, ethylene is the polymer, the chemical building block of polyester,Pure Raw Materials Color Extruded Acrylic Sheet.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Extruded Acrylic Sheet. The four basic forms are filament,Transparent PMMA Sheet For Making Face Shields, tow, and fiberfill. In the filament form,White Color PMMA Plastic Sheet For Making Bathtub, producing smooth-Color PMMA Sheet.Color Cast Acrylic Sheet For Making Luminous Characters, filaments are cut to short,Red Color Cast Acrylic Sheet.Grade A Color Cast Acrylic Sheet. 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.Color Cast Acrylic Sheet.

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-Transparent Cast Acrylic Sheet Used For Building Materials,Frosted Transparent Cast Acrylic Sheet, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Transparent Cast Acrylic Sheet For UV Painting. 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.Cast Acrylic Sheet, which are usually round,Waterproof White Sintra Board. The number of holes in the spinneret determines the size of the yarn,White Sintra Board.
• 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,3mm Color Sintra Board. 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,Color Sintra Board.
• Forex Board,High Density Forex Sheet. Also,Forex Sheet For Sign,PVC Forex Sheet.

Winding

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

High Gloss Laminated Board

PVC Rigid Board Furniture, 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 Celluka Board. The rope-PVC Sign Board.

Drawing tow

• 1 Newly-12mm PVC Lead Free Foam Board.PVC Foam Sheet Lead Free 5/8.

Crimping

• 2 Drawn tow is then fed into compression boxes,Lead Free PVC Foam Sheet, at a rate of 9-15 crimps per inch (3-6 per cm).White PVC Foam Sheet.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)PVC Free Foam Sheet.Colors PVC Foam Board.

Cutting

• 4 Following heat setting,Low Density PVC Free Foam Board. 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 Foam Sheet.Low Noise Plastic Granulator, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Mid Speed Granulator.

The Future

Middle Speed Plastic Granulator,Low Speed Granulators's fastest-growing fiber.Screw Color Mixer. 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,Color Dose Mixer, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Central Chiller - Dual Machine. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Central Chiller -Single, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.