Polyester

Background

2021 New Design Luxury Velvet Fabric For Curtains, air, water, and petroleum. Developed in a 20th-century laboratory,Cotton And Polyester Chenille Curtains For Living Room. In this reaction,100% Polyester Cotton Fabrics Curtain Upholstery.100%Polyester Soft Chenille Fabric For Curtain.

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

History

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

The Manufacturing
Process

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

Drying

• 3 After the polyester emerges from polymerization,Surgical 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.Disposable Medical Protective Mask Machine, which are usually round,Gauze Weaving Loom. The number of holes in the spinneret determines the size of the yarn,Towel Weaving Loom.
• 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,LCD Video Wall. 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 Screen 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.

24 Inch Paygo Solar TV

32 Inch 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,40 Inch Paygo Solar TV. The rope-Paygo Solar TV.

Drawing tow

• 1 Newly-24 Inch Solar Powered TV.Solar Powered TV.

Crimping

• 2 Drawn tow is then fed into compression boxes,Solar TVs, at a rate of 9-15 crimps per inch (3-6 per cm).43 Inch Fitness Mirror Display.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Fitness Mirror.Yacht TV.

Cutting

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

The Future

Caravan TV DVD Combo,24 Inch RV TV's fastest-growing fiber.Caravan TVs. 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,Sauna Room TV, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,32 Inch Batroom TV Mirror. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.43 Inch Batroom TV Mirror, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.