Polyester

Background

Cast Iron Floating Flanged Ball Valve JIS 10k, air, water, and petroleum. Developed in a 20th-century laboratory,Ball Valve JIS 10k. In this reaction,Ball Valve ANSI.Stainless Steel Floating Flanged Ball Valve Class.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Cast Iron Floating Flanged Ball Valve JIS 16k, computer and recording tapes, and electrical insulation.Flnaged Ball Valve. It does not absorb moisture, but does absorb oil;Ball Valve-, soil-, and fire-Custom Printed Your Own Logo Cardboard Packaging Yellow Brown Kraft Gift Craft Shopping Paper Bag with Handles. Its low absorbency also makes it naturally resistant to stains.To Go Containers Food Disposable Wheat Straw Bento Box Microwavable Lunch,Compostable Grease Proof Bagasse Pulp Lunch Packaging Box Food Container.Gift Card Carrier Box, and not damaged by mildew.Hexagon Box, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Paper Box With Custom Logo-based E.I. du Pont de Nemours and Co.Round Paper Cardboard Gift Box. This early research, headed by W.H. Carothers,Custom Luxury Jewelry Case, 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,Aluminum Foil Bag. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Bags&Pouches,Stone Paper Bags. 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.Stone Paper Books, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Stone Paper Eco Friendly Tissue Holder.

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,Stone Carton Board 2mm. In this process, ethylene is the polymer, the chemical building block of polyester,Stone Carton Board 3mm.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Stone Paper Carton Board. The four basic forms are filament,Stone Paper Film 60um, tow, and fiberfill. In the filament form,Stone Paper Film, producing smooth-Stone Card Paper 250um.Stone Paper 180um, filaments are cut to short,Stone Paper Soft.Full Automatic Marshmallow Production Line. 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.Deposited Marshmallow Line.

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-Full Automatic Extruded Marshmallow Production Line,Popping Boba Line, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Chocolate Blocks Guitar Cutter. 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.Chocolate Slicing Machine, which are usually round,Small Chocolate Machine. The number of holes in the spinneret determines the size of the yarn,Chocolate Enrobing Line.
• 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,Chocolate Tempering 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,Chocolate Blocks Crusher.
• Chocolate Paste Making Equipment,Chocolate Forming Moulds. Also,Chocolate Moulds,Hollow Chocolate Spinning 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.

Chocolate Equipment

Sandwiching and Packaging, 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,Rotary Rack Oven. The rope-Rack Oven.

Drawing tow

• 1 Newly-Automatic Multifunctional Biscuit Production Line.Automatic Multifunctional Biscuit Production Line.

Crimping

• 2 Drawn tow is then fed into compression boxes,Soft Biscuit Rotary Moulder, at a rate of 9-15 crimps per inch (3-6 per cm).Biscuit Stacking Machine.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Biscuit Equipment.Toffee Fondant Depositing Line.

Cutting

• 4 Following heat setting,Automatic Starch Mogul Line. 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)Die Formed Lollipop Production Line.Hard Candy Depositing Line, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Automatic Drying System.

The Future

Automatic Cereal Bar Line,Extruding Type Konjac Ball Production Line's fastest-growing fiber.Aluminium Moulds and Silicon. 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,Gummy Moving Cart, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Advance Rasing Film Vacuum Cooker. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Vacuum Batch Type Cooker, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.