Polyester

Background

Metal Shirt Hanger with Thickness Wire, air, water, and petroleum. Developed in a 20th-century laboratory,Travel Portable Laundry Hooks Pins Clips Hanger. In this reaction,Metal Mini Clip Hanger.Metal Shirt Hanger.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Clear Plastic Hanger with Clips, computer and recording tapes, and electrical insulation.Plastic Coat Hanger Dimensions. It does not absorb moisture, but does absorb oil;Professional Thick Plastic Coat Hanger Dimensions-, soil-, and fire-Folding Hanger. Its low absorbency also makes it naturally resistant to stains.Black Triangle Plastic Clothes Hangers for Suits,Adult Girls Panty and Bra Sets Stock with Hanger Poly Packing.Plastic Terry cloth Blanket Hanger, and not damaged by mildew.Foldable Washable Cloth Hanging Closet Organizer, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Compressed Flat Vacuum Bag-based E.I. du Pont de Nemours and Co.Space Saver Compressed Bag. This early research, headed by W.H. Carothers,Compressed Bag, 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,Display Plywood Clothes Hanger with Leopard Head. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Wooden Cloth Hanger Rack,Luxury Antique Wooden Shirt 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.Wooden Hanger Anti Theft with Clips, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Natural wood Pack Solid Wood Clothes Hangers.

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,Wood Clothes Hangers. In this process, ethylene is the polymer, the chemical building block of polyester,Wooden Hanger.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Kn95 Masks With Respirator. The four basic forms are filament,Prevention Key, tow, and fiberfill. In the filament form,Oxygen Machine, producing smooth-Washable Fabric Mask.Cotton Fabric Germ Protection Mask, filaments are cut to short,Fabric Mask.Electric Alcohol Disinfectant Sprayer. 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.Alcohol Sprayer.

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-Alcohol Disinfectant,Hand Sanitizer Gel With Alcohol, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Hand Sanitizer. 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.Disinfection Products, which are usually round,Protective Safety Goggles. The number of holes in the spinneret determines the size of the yarn,Protective Safety Eye Protection Goggles.
• 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,Medical Protective Eye Goggles. 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,Anti Virus Medical Safety Goggles.
• Safety Glasses Virus Medical Goggles,Protective Goggles. Also,Disposable Nitrile Gloves,Disposable PVC Gloves.

Winding

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

Latex Gloves

Disposable PE Gloves, 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,Disposable PE Gloves With Block. The rope-Disposable Gloves.

Drawing tow

• 1 Newly-Medical Isolation Shoe Cover.Medical Shoe Cover.

Crimping

• 2 Drawn tow is then fed into compression boxes,Disposable Medical Cap, at a rate of 9-15 crimps per inch (3-6 per cm).Medical Cap.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Medical Isolation Gown.Medical isolation gown.

Cutting

• 4 Following heat setting,Disposable Medical Isolation Clothing. 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)Non-medical Protective Clothing.Medical Protective Clothing, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Medical Protective Clothing Gown.

The Future

Medical Protective Clothing,Protective Clothing's fastest-growing fiber.Medical Digital Non-Contact Forehead Infrared Thermometer. 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,Digital No Touch Medical Gun Body Forehead Infrared Thermometer, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Digital wall mounted thermometer With Automatic Alarm System. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.handsfree automatic wall mounted sensor digital thermometer, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.