Polyester

Background

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Polyester is used in the manufacture of many products, including clothing, home furnishings,European Style Decorative Sheers Curtain, computer and recording tapes, and electrical insulation.2021 New Design Luxury Velvet Fabric For Curtains. It does not absorb moisture, but does absorb oil;Cotton And Polyester Chenille Curtains For Living Room-, soil-, and fire-100% Polyester Cotton Fabrics Curtain Upholstery. Its low absorbency also makes it naturally resistant to stains.100%Polyester Soft Chenille Fabric For Curtain,Jacquard Curtain.JBL Two Faced complete Blackout Curtain Fabric For Bedroom, and not damaged by mildew.Automatic Fiber High Speed Rapier Machine, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

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

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,Weaving Machine Fiber Rapier Loom. In this process, ethylene is the polymer, the chemical building block of polyester,Weaving Loom.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Rapier Loom In Weaving Machines. The four basic forms are filament,GA736 Weaving Machine, tow, and fiberfill. In the filament form,Rapier Weaving Machine, producing smooth-Rapier Machine.Medical Mask Machine, filaments are cut to short,Fabric Mask Machine.Nonvoven Mask 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.Medical Mask 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-Mask Making Machine,Face Mask Maker Machine, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Face Mask Machine. 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.Fully Automatic Disposable Non Woven Face Mask Making Machine, which are usually round,Disposable Medical Protective Auto Mask Machine. The number of holes in the spinneret determines the size of the yarn,Medical Masks Making Machine.
• 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,Disposable Face Medical Masks Making Machine. 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,Surgical Mask Machine.
• Disposable Medical Protective Mask Machine,Gauze Weaving Loom. Also,Towel Weaving Loom,LCD Video Wall.

Winding

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

Touch Screen Displays

22 Inch Touch Inquiry Displays, 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,Touch Inquiry Displays. The rope-Kiosk.

Drawing tow

• 1 Newly-Low Power Consumption Solar TV.24 Inch Paygo Solar TV.

Crimping

• 2 Drawn tow is then fed into compression boxes,32 Inch Paygo Solar TV, at a rate of 9-15 crimps per inch (3-6 per cm).40 Inch Paygo Solar TV.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Paygo Solar TV.24 Inch Solar Powered TV.

Cutting

• 4 Following heat setting,Solar Powered 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)Solar TVs.43 Inch Fitness Mirror Display, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Fitness Mirror.

The Future

Yacht TV,Marine TV For Sale's fastest-growing fiber.Marine TV. 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,19 Inch Caravan TV, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,24 Inch Caravan TV. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Caravan TV DVD Combo, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.