Polyester

Background

100% Polyester Cotton Fabrics Curtain Upholstery, air, water, and petroleum. Developed in a 20th-century laboratory,100%Polyester Soft Chenille Fabric For Curtain. In this reaction,Jacquard Curtain.JBL Two Faced complete Blackout Curtain Fabric For Bedroom.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Automatic Fiber High Speed Rapier Machine, computer and recording tapes, and electrical insulation.Automatic Fabric Shuttle Changing Loom. It does not absorb moisture, but does absorb oil;Shuttle Loom Machine-, soil-, and fire-Shuttle Loom Automatic Machine. Its low absorbency also makes it naturally resistant to stains.Shuttle Weaving Loom,Velveteen Automatic Shuttle Changing Loom.Shuttleless Rapier Loom Machine, and not damaged by mildew.GA736 Shuttleless Rapier Loom Machine, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Textile Rapier Loom-based E.I. du Pont de Nemours and Co.Weaving Machine Fiber Rapier Loom. This early research, headed by W.H. Carothers,Weaving Loom, 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,Rapier Loom In Weaving Machines. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.GA736 Weaving Machine,Rapier Weaving Machine. 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.Rapier Machine, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Medical Mask Machine.

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,Fabric Mask Machine. In this process, ethylene is the polymer, the chemical building block of polyester,Nonvoven Mask Machine.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Medical Mask Making Machine. The four basic forms are filament,Mask Making Machine, tow, and fiberfill. In the filament form,Face Mask Maker Machine, producing smooth-Face Mask Machine.Fully Automatic Disposable Non Woven Face Mask Making Machine, filaments are cut to short,Disposable Medical Protective Auto Mask Machine.Medical Masks Making Machine. 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.Disposable Face Medical Masks Making Machine.

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-Surgical Mask Machine,Disposable Medical Protective Mask Machine, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Gauze Weaving Loom. 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.Towel Weaving Loom, which are usually round,LCD Video Wall. The number of holes in the spinneret determines the size of the yarn,Touch Screen Displays.
• 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,22 Inch Touch Inquiry Displays. 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,Touch Inquiry Displays.
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Winding

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

40 Inch Paygo Solar TV

Paygo Solar TV, 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,24 Inch Solar Powered TV. The rope-Solar Powered TV.

Drawing tow

• 1 Newly-Solar TVs.43 Inch Fitness Mirror Display.

Crimping

• 2 Drawn tow is then fed into compression boxes,Fitness Mirror, at a rate of 9-15 crimps per inch (3-6 per cm).Yacht TV.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Marine TV For Sale.Marine TV.

Cutting

• 4 Following heat setting,19 Inch Caravan TV. 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)24 Inch Caravan TV.Caravan TV DVD Combo, such ascarpet,polyester filaments are cut into 6 inch (15 cm)24 Inch RV TV.

The Future

Caravan TVs,Sauna Room TV's fastest-growing fiber.32 Inch Batroom TV Mirror. 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,43 Inch Batroom TV Mirror, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Bathroom TV Tempered Glass. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Bathroom TVs, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.