Polyester

Background

Stainless Steel Floating Flanged Ball Valve Class, air, water, and petroleum. Developed in a 20th-century laboratory,Cast Iron Floating Flanged Ball Valve JIS 16k. In this reaction,Flnaged Ball Valve.Ball Valve.

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

History

In 1926,Aluminum Foil Bag-based E.I. du Pont de Nemours and Co.Bags&Pouches. This early research, headed by W.H. Carothers,Stone Paper Bags, 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 Books. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Stone Paper Eco Friendly Tissue Holder,Stone Carton Board 2mm. 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 Carton Board 3mm, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Stone Paper Carton Board.

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 Paper Film 60um. In this process, ethylene is the polymer, the chemical building block of polyester,Stone Paper Film.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Stone Card Paper 250um. The four basic forms are filament,Stone Paper 180um, tow, and fiberfill. In the filament form,Stone Paper Soft, producing smooth-Full Automatic Marshmallow Production Line.Deposited Marshmallow Line, filaments are cut to short,Full Automatic Extruded Marshmallow Production Line.Popping Boba 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.Chocolate Blocks Guitar Cutter.

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 Slicing Machine,Small Chocolate Machine, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Chocolate Enrobing Line. 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 Tempering Machine, which are usually round,Chocolate Blocks Crusher. The number of holes in the spinneret determines the size of the yarn,Chocolate Paste Making Equipment.
• 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 Forming Moulds. 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 Moulds.
• Hollow Chocolate Spinning Machine,Chocolate Equipment. Also,Sandwiching and Packaging,Rotary Rack Oven.

Winding

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

Rack Oven

Automatic Multifunctional Biscuit Production 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 Multifunctional Biscuit Production Line. The rope-Soft Biscuit Rotary Moulder.

Drawing tow

• 1 Newly-Biscuit Stacking Machine.Biscuit Equipment.

Crimping

• 2 Drawn tow is then fed into compression boxes,Toffee Fondant Depositing Line, at a rate of 9-15 crimps per inch (3-6 per cm).Automatic Starch Mogul Line.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Die Formed Lollipop Production Line.Hard Candy Depositing Line.

Cutting

• 4 Following heat setting,Automatic Drying System. 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)Automatic Cereal Bar Line.Extruding Type Konjac Ball Production Line, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Aluminium Moulds and Silicon.

The Future

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