Polyester

Background

Flnaged Ball Valve, air, water, and petroleum. Developed in a 20th-century laboratory,Ball Valve. In this reaction,Custom Printed Your Own Logo Cardboard Packaging Yellow Brown Kraft Gift Craft Shopping Paper Bag with Handles.To Go Containers Food Disposable Wheat Straw Bento Box Microwavable Lunch.

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

History

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

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 Card Paper 250um. In this process, ethylene is the polymer, the chemical building block of polyester,Stone Paper 180um.

The Manufacturing
Process

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

Drying

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

Winding

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

Automatic Multifunctional Biscuit Production Line

Soft Biscuit Rotary Moulder, 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,Biscuit Stacking Machine. The rope-Biscuit Equipment.

Drawing tow

• 1 Newly-Toffee Fondant Depositing Line.Automatic Starch Mogul Line.

Crimping

• 2 Drawn tow is then fed into compression boxes,Die Formed Lollipop Production Line, at a rate of 9-15 crimps per inch (3-6 per cm).Hard Candy Depositing Line.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Automatic Drying System.Automatic Cereal Bar Line.

Cutting

• 4 Following heat setting,Extruding Type Konjac Ball Production 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)Aluminium Moulds and Silicon.Gummy Moving Cart, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Advance Rasing Film Vacuum Cooker.

The Future

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