Polyester

Background

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

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

History

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

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

The Manufacturing
Process

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

Drying

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

Soft Biscuit Rotary Moulder

Biscuit Stacking Machine, 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 Equipment. The rope-Toffee Fondant Depositing Line.

Drawing tow

• 1 Newly-Automatic Starch Mogul Line.Die Formed Lollipop Production Line.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Automatic Cereal Bar Line.Extruding Type Konjac Ball Production Line.

Cutting

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

The Future

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