Polyester

Background

Bicycle Turntable Indoor Playground Electric Equipment, air, water, and petroleum. Developed in a 20th-century laboratory,Indoor Playground Electric Equipment. In this reaction,Children Trampoline Indoor Playground.Kids Trampoline Indoor Playground.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Adult Trampoline Indoor Playground, computer and recording tapes, and electrical insulation.200-300 Square Meters Forest Theme Indoor Playground. It does not absorb moisture, but does absorb oil;300-500 Square Meters Forest Theme Indoor Playground-, soil-, and fire-100-200 Square Meters Colorful Theme Indoor Playground. Its low absorbency also makes it naturally resistant to stains.100-200 Square Meters British Theme Indoor Playground,100-200 Square Meters Ocean Theme Indoor Playground.100-200 Square Meters Macaron Theme Indoor Playground, and not damaged by mildew.300-500 Square Meters Macaron Theme Indoor Playground, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,100-200 Square Meters Space Theme Indoor Playground-based E.I. du Pont de Nemours and Co.200-500 Square Meters Space Theme Indoor Playground. This early research, headed by W.H. Carothers,Castle Theme Indoor Playground, 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,Children Small Indoor Playground. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Children Driving School Playground,Sand Pond Indoor Playground. 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.20-100 Square Meters Indoor Playground, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Large Comprehensive Indoor Playground.

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,Big Ball Pool Indoor Playground. In this process, ethylene is the polymer, the chemical building block of polyester,High-rise Indoor Playground.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Theme Indoor Playground. The four basic forms are filament,Indoor Playground, tow, and fiberfill. In the filament form,High Temperature Flange Insulation Kits, producing smooth-Flange Insulation Kit Gasket.Flange Bolt Insulation Kits, filaments are cut to short,Flange Insulation Kit Gaskets.Pipe Flange Insulation Kits. 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.Phenolic Flange Insulation Kits.

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-Flange Insulation Kits,Piping Flange Isolating Gaskets and Kits, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Flange Insulation Gasket Kits. 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.Piping Flange Isolating Gaskets and Kits, which are usually round,Flange Isolating Gasket Kits. The number of holes in the spinneret determines the size of the yarn,Flange Insulation Kit Gasket.
• 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,High Temperature Flange Insulation Kits. 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,8 Flange Isolation Kit.
• 6 Flange Insulation Kit,Phenolic Flange Insulation Kits. Also,Pipeline Flange Insulation Kits,Phenolic Flange Insulation Kits.

Winding

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

Flange Isolating Gasket Kits

Flange Insulation Gasket Sets, 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,Type D Flange Insulation Gasket Kit. The rope-Neoprene Faced Phenolic Flange Insulation Gasket Kit.

Drawing tow

• 1 Newly-Flange Insulating Gaskets.Velvet Fabric.

Crimping

• 2 Drawn tow is then fed into compression boxes,Leopard Snakeskin Pattern Jacquard Looped Sofa Fabric, at a rate of 9-15 crimps per inch (3-6 per cm).Luxury Snake Skin Pattern Jacquard Looped Rayon Sofa Fabric.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)780GSM High Quality Weight Tiger Stripe Jacquard Cut Velvet Fabric.Light Repellent Anti Fire Sofa Fabric.

Cutting

• 4 Following heat setting,Sofa Fabric Home Textile Yarn Dyed Jacquard. 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)Embroidery Fabric.30% RAYON 70%Polyester Jacquard Trims And Tapes, such ascarpet,polyester filaments are cut into 6 inch (15 cm)JBL Jacquard Cut Velvet New Design Border Trims.

The Future

Jacquard Trims,Jacquard Velvet Cushion Cover's fastest-growing fiber.New Design Gold Printed Cushion Cover Decorative Pillow. 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,Pillow Case Valentine Cushion Cover, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Print Decorative Home Textile Cushion. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Cushion Cover, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.