Polyester

Background

Gift Card Carrier Box, air, water, and petroleum. Developed in a 20th-century laboratory,Hexagon Box. In this reaction,Paper Box With Custom Logo.Round Paper Cardboard Gift Box.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Custom Luxury Jewelry Case, computer and recording tapes, and electrical insulation.Aluminum Foil Bag. It does not absorb moisture, but does absorb oil;Bags&Pouches-, soil-, and fire-Stone Paper Bags. Its low absorbency also makes it naturally resistant to stains.Stone Paper Books,Stone Paper Eco Friendly Tissue Holder.Stone Carton Board 2mm, and not damaged by mildew.Stone Carton Board 3mm, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

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

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 Extruded Marshmallow Production Line. In this process, ethylene is the polymer, the chemical building block of polyester,Popping Boba Line.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Chocolate Blocks Guitar Cutter. The four basic forms are filament,Chocolate Slicing Machine, tow, and fiberfill. In the filament form,Small Chocolate Machine, producing smooth-Chocolate Enrobing Line.Chocolate Tempering Machine, filaments are cut to short,Chocolate Blocks Crusher.Chocolate Paste Making Equipment. 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 Forming Moulds.

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 Moulds,Hollow Chocolate Spinning Machine, is extruded through a slot to form long ribbons.

Drying

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

Die Formed Lollipop 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,Hard Candy Depositing Line. The rope-Automatic Drying System.

Drawing tow

• 1 Newly-Automatic Cereal Bar Line.Extruding Type Konjac Ball Production Line.

Crimping

• 2 Drawn tow is then fed into compression boxes,Aluminium Moulds and Silicon, at a rate of 9-15 crimps per inch (3-6 per cm).Gummy Moving Cart.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Advance Rasing Film Vacuum Cooker.Vacuum Batch Type Cooker.

Cutting

• 4 Following heat setting,Gummy Kitchen 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)Advance Gummy Production Line.Gummy Machines, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Cloth Bag For Gift.

The Future

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