Polyester

Background

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

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

History

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

The Manufacturing
Process

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

Drying

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

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

Drawing tow

• 1 Newly-Velvet Fabric.Leopard Snakeskin Pattern Jacquard Looped Sofa Fabric.

Crimping

• 2 Drawn tow is then fed into compression boxes,Luxury Snake Skin Pattern Jacquard Looped Rayon Sofa Fabric, at a rate of 9-15 crimps per inch (3-6 per cm).780GSM High Quality Weight Tiger Stripe Jacquard Cut Velvet Fabric.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Light Repellent Anti Fire Sofa Fabric.Sofa Fabric Home Textile Yarn Dyed Jacquard.

Cutting

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

The Future

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