Polyester

Background

To Go Containers Food Disposable Wheat Straw Bento Box Microwavable Lunch, air, water, and petroleum. Developed in a 20th-century laboratory,Compostable Grease Proof Bagasse Pulp Lunch Packaging Box Food Container. In this reaction,Gift Card Carrier Box.Hexagon Box.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Paper Box With Custom Logo, computer and recording tapes, and electrical insulation.Round Paper Cardboard Gift Box. It does not absorb moisture, but does absorb oil;Custom Luxury Jewelry Case-, soil-, and fire-Aluminum Foil Bag. Its low absorbency also makes it naturally resistant to stains.Bags&Pouches,Stone Paper Bags.Stone Paper Books, and not damaged by mildew.Stone Paper Eco Friendly Tissue Holder, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Stone Carton Board 2mm-based E.I. du Pont de Nemours and Co.Stone Carton Board 3mm. This early research, headed by W.H. Carothers,Stone Paper Carton Board, 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,Stone Paper Film 60um. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Stone Paper Film,Stone Card Paper 250um. 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 180um, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Stone Paper Soft.

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,Full Automatic Marshmallow Production Line. In this process, ethylene is the polymer, the chemical building block of polyester,Deposited Marshmallow Line.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Full Automatic Extruded Marshmallow Production Line. The four basic forms are filament,Popping Boba Line, tow, and fiberfill. In the filament form,Chocolate Blocks Guitar Cutter, producing smooth-Chocolate Slicing Machine.Small Chocolate Machine, filaments are cut to short,Chocolate Enrobing Line.Chocolate Tempering 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.Chocolate Blocks Crusher.

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-Chocolate Paste Making Equipment,Chocolate Forming Moulds, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Chocolate Moulds. 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.Hollow Chocolate Spinning Machine, which are usually round,Chocolate Equipment. The number of holes in the spinneret determines the size of the yarn,Sandwiching and Packaging.
• 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,Rotary Rack Oven. 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,Rack Oven.
• Automatic Multifunctional Biscuit Production Line,Automatic Multifunctional Biscuit Production Line. Also,Soft Biscuit Rotary Moulder,Biscuit Stacking 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.

Biscuit Equipment

Toffee Fondant Depositing Line, 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,Automatic Starch Mogul Line. The rope-Die Formed Lollipop Production Line.

Drawing tow

• 1 Newly-Hard Candy Depositing Line.Automatic Drying System.

Crimping

• 2 Drawn tow is then fed into compression boxes,Automatic Cereal Bar Line, at a rate of 9-15 crimps per inch (3-6 per cm).Extruding Type Konjac Ball Production Line.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Aluminium Moulds and Silicon.Gummy Moving Cart.

Cutting

• 4 Following heat setting,Advance Rasing Film Vacuum Cooker. 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)Vacuum Batch Type Cooker.Gummy Kitchen System, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Advance Gummy Production Line.

The Future

Gummy Machines,Cloth Bag For Gift's fastest-growing fiber.Cloth Christmas Gift Bag. 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,Gift Cloth Pouch, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Drawstring Sunglasses Pouch. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Microfiber Pouch, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.