Polyester

Background

Small 8 Inch Cutter Dredger Ship, air, water, and petroleum. Developed in a 20th-century laboratory,Garment Processing Accessories. In this reaction,Bamboo Drawer Organizer.Laundry Basket.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Foldable Cutting Board, computer and recording tapes, and electrical insulation.Folding Bowl. It does not absorb moisture, but does absorb oil;Wood Poster Frame Hanger in Black for Photo Picture Canvas Artwork Art-, soil-, and fire-Hanger Sizer Garment Size. Its low absorbency also makes it naturally resistant to stains.Blanket Hanger,Magic Hangers Multifunctional Hanger.Stainless Steel Magic Space Saver Storage Pants Hanger, and not damaged by mildew.Magic Hanger, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Velvet Kids Clothes Hangers-based E.I. du Pont de Nemours and Co.Velvet Multi Purpose Hanger. This early research, headed by W.H. Carothers,Velvet Hanger, 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,Metal Shirt Hanger with Thickness Wire. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Travel Portable Laundry Hooks Pins Clips Hanger,Metal Mini Clip Hanger. 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.Metal Shirt Hanger, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Clear Plastic Hanger with Clips.

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,Plastic Coat Hanger Dimensions. In this process, ethylene is the polymer, the chemical building block of polyester,Professional Thick Plastic Coat Hanger Dimensions.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Folding Hanger. The four basic forms are filament,Black Triangle Plastic Clothes Hangers for Suits, tow, and fiberfill. In the filament form,Adult Girls Panty and Bra Sets Stock with Hanger Poly Packing, producing smooth-Plastic Terry cloth Blanket Hanger.Foldable Washable Cloth Hanging Closet Organizer, filaments are cut to short,Compressed Flat Vacuum Bag.Space Saver Compressed Bag. 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.Compressed Bag.

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-Display Plywood Clothes Hanger with Leopard Head,Wooden Cloth Hanger Rack, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Luxury Antique Wooden Shirt Hanger. 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.Wooden Hanger Anti Theft with Clips, which are usually round,Natural wood Pack Solid Wood Clothes Hangers. The number of holes in the spinneret determines the size of the yarn,Wood Clothes Hangers.
• 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,Wooden Hanger. 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,Kn95 Masks With Respirator.
• Prevention Key,Oxygen Machine. Also,Washable Fabric Mask,Cotton Fabric Germ Protection Mask.

Winding

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

Fabric Mask

Electric Alcohol Disinfectant Sprayer, 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,Alcohol Sprayer. The rope-Alcohol Disinfectant.

Drawing tow

• 1 Newly-Hand Sanitizer Gel With Alcohol.Hand Sanitizer.

Crimping

• 2 Drawn tow is then fed into compression boxes,Disinfection Products, at a rate of 9-15 crimps per inch (3-6 per cm).Protective Safety Goggles.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Protective Safety Eye Protection Goggles.Medical Protective Eye Goggles.

Cutting

• 4 Following heat setting,Anti Virus Medical Safety Goggles. 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)Safety Glasses Virus Medical Goggles.Protective Goggles, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Disposable Nitrile Gloves.

The Future

Disposable PVC Gloves,Latex Gloves's fastest-growing fiber.Disposable PE Gloves. 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,Disposable PE Gloves With Block, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Disposable Gloves. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Medical Isolation Shoe Cover, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.