Polyester

Background

Furance Cleaning Flux, air, water, and petroleum. Developed in a 20th-century laboratory,Sodium Remover Flux. In this reaction,Aluminum Rare Earth Waffle.Aluminum Rare Earth.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Aluminum Bismuth Waffle, computer and recording tapes, and electrical insulation.Aluminum Bismuth. It does not absorb moisture, but does absorb oil;Aluminum Chromium Waffle-, soil-, and fire-Aluminum Chromium. Its low absorbency also makes it naturally resistant to stains.Aluminum Zirconium Cut Cast Bar,Aluminum Boron Cut Cast Bar.Aluminum Titanium Boron, and not damaged by mildew.Aluminum Base Master Alloy, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,vacuum laminating machine for solid wood furniture-based E.I. du Pont de Nemours and Co.Vacuum Press Laminating Machine For Doors. This early research, headed by W.H. Carothers,Vacuum Press Laminate Machine For Doors, 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,Door Vacuum Press Laminate machine. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Door Vacuum Press Laminator,Round Knife Slitting 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.High Gloss Pvc vacuum laminating machine, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.vacuum laminating 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,Laminate Film Cutting And Slitting Machine. In this process, ethylene is the polymer, the chemical building block of polyester,Wrapping Film Cutting And Slitting Machine.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Multifunction Slitting Machine. The four basic forms are filament,Round Knife Film Cutting And Slitting Machine, tow, and fiberfill. In the filament form,Film Cutting And Slitting Machine, producing smooth-Curved Part Floor Brush Sanding Polishing Machine.Manual Curved Mini Brush Sanding Machine For Wood, filaments are cut to short,Board And Door Profile Sanding Polishing Machine.Profile Sanding Polishing 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.Profile Wrapping Machine For MDF.

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-Door And Window Frame Profile Wrapping Machine,Aluminium WPC UPVC PVC Profile Wrapping Machine, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Profile Wrapping Laminate 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.Woodworking Furniture Door Vacuum Press Machine, which are usually round,Door Vacuum Press Laminating Machine. The number of holes in the spinneret determines the size of the yarn,Wood Grain Film Transfer Vacuum Press 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,No glue funiture door membrane vacuum press 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,Wood Grain Heat Transfer Vacuum Membrane Press Machine.
• PVC MDF Door Vacuum Membrane Press Machine,Door Laminating Vacuum Membrane Press Machine. Also,Full Automatic Door Vacuum Membrane Press Machine,Auto Pin System Vacuum Membrane Press Machine.

Winding

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

Positive And Negative Membrane Press Machine

320W Greenhouse Light, 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,Full Spectrum Grow Light 680W. The rope-720W Grow Light Full Spectrum 660nm.

Drawing tow

• 1 Newly-1000W Grow Light Full Spectrum 660nm.LED Grow Light Replacing CMH 630W.

Crimping

• 2 Drawn tow is then fed into compression boxes,8 Bars Vertical Farming Grow Light 720W, at a rate of 9-15 crimps per inch (3-6 per cm).960W Vertical Farming Grow Light.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)10 Bars Vertical Farming Grow Light 960W.8 Bars Vertical Farming Grow Light With Seoul LED.

Cutting

• 4 Following heat setting,Grow Tent Light. 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)320W Grow Light Lm301h For Indoor Plants.480W Grow light LM301H for indoor plants, such ascarpet,polyester filaments are cut into 6 inch (15 cm)LED Indoor Grow light 640W.

The Future

720W Indoor Grow Light With Samsung LM301B,Indoor Grow Light 720W With Seoul LED's fastest-growing fiber.LED Indoor Grow Light 840W. 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,Indoor Grow Light 840W With Seoul LED, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,840W Grow Light LM301H For Indoor Plants. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.ELENOR X8 LED indoor grow light 960W, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.