Polyester

Background

Plain Sheers, air, water, and petroleum. Developed in a 20th-century laboratory,JBL Jacquard Fabric Sheers Curtain. In this reaction,Bedroom Simple Modern Style Curtains.European Style Decorative Sheers Curtain.

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

History

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

The Manufacturing
Process

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

Drying

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

Winding

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

22 Inch Touch Inquiry Displays

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,Kiosk. The rope-Low Power Consumption Solar TV.

Drawing tow

• 1 Newly-24 Inch Paygo Solar TV.32 Inch Paygo Solar TV.

Crimping

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

Setting

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

Cutting

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

The Future

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