Polyester

Background

Industrial Magnets, air, water, and petroleum. Developed in a 20th-century laboratory,Oil Filter Magnets. In this reaction,Magnetic Filtration.Magnetic DC Electric Motors.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Magnetic Separation, computer and recording tapes, and electrical insulation.Magnetic Hook Set. It does not absorb moisture, but does absorb oil;Sintered Neodymium Magnetic Hook Assembly-, soil-, and fire-Pot Magnet Assemblies. Its low absorbency also makes it naturally resistant to stains.Rare Earth Powerful Permanent NdFeB Neodymium Magnet with Hole,Strong Neodymium Magnets.Block Strong Neodymium Magnets, and not damaged by mildew.Irregular Shape Neodymium Magnets, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Rare Earth Permanent Magnets-based E.I. du Pont de Nemours and Co.Permanent Magnet Rotors. This early research, headed by W.H. Carothers,Cotton Tape, 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,High Density Double Sided Cloth Tape. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Construction Tape,Cloth Tapes. 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.Strong Based Double Sided Tape, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.High Density Double Sided Rubber Cloth Tape.

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,PET Tape. In this process, ethylene is the polymer, the chemical building block of polyester,Oily Double Sided Tape.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Double Sided Tape For Embroidery. The four basic forms are filament,Double Sided Tapes, tow, and fiberfill. In the filament form,House Decoration Masking Tape, producing smooth-Wig Tape.Plastic Spraying Tape, filaments are cut to short,Masking Tapes.Printed Packing Tape. 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.Printing Tape.

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-Grid Kraft Tape,Eco-Friendly Paper Packing Tape, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Self Adhesive Kraft Paper Tape. 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.LOGO Tape, which are usually round,Sticky Lint Roller Tape. The number of holes in the spinneret determines the size of the yarn,Handled Sticky Roller.
• 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,Pet Stick Grip Roller Tape. 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,Sticky Roller Mop Refill.
• Pet Hair Sticky Remover,FG53 SERIES IP65 LED TRI-PROOF LAMP. Also,FG55 SERIES IP65 LED TRI-PROOF LAMP,FG06 SERIES IP65 LED WATERPROOF LAMP.

Winding

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

FB01A SERIES IP54 LED WATERPROOF LAMP

FG11 SERIES IP65 LED WATERPROOF LAMP, 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,FB02 SERIES IP20 LED WATERPROOF LAMP. The rope-FE05 SERIES IP65 LED WATERPROOF LAMP.

Drawing tow

• 1 Newly-FLD-A SERIES IP65 LED FLOOD LIGHT.Flood Light.

Crimping

• 2 Drawn tow is then fed into compression boxes,FE03 SERIES IP65 LED DUSTPROOF LAMP, at a rate of 9-15 crimps per inch (3-6 per cm).FE05 SERIES IP65 LED DUSTPROOF LAMP.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)FI81E SERIES IP65 LED DUSTPROOF LAMP.FI88E SERIES IP65 LED DUSTPROOF LAMP.

Cutting

• 4 Following heat setting,FI89E SERIES IP65 LED DUSTPROOF LAMP. 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)FG03 SEREIS IP67 LED DUSTPROOF LAMP.FG04 SERIES IP65 LED DUSTPROOF LAMP, such ascarpet,polyester filaments are cut into 6 inch (15 cm)FG06 SERIES IP65 LED DUSTPROOF LAMP.

The Future

FB01A SERIES IP54 LED DUSTPROOF LAMP,FG11 SERIES IP65 LED DUSTPROOF LAMP's fastest-growing fiber.FB02 SERIES IP20 LED DUSTPROOF LAMP. 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,Dustproof Light, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Fluorescent Tri-Proof Light. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.FE01 SERIES IP65 LED TRI-PROOF LAMP, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.