Polyester

Background

Custom Luxury Jewelry Case, air, water, and petroleum. Developed in a 20th-century laboratory,Aluminum Foil Bag. In this reaction,Bags&Pouches.Stone Paper Bags.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Stone Paper Books, computer and recording tapes, and electrical insulation.Stone Paper Eco Friendly Tissue Holder. It does not absorb moisture, but does absorb oil;Stone Carton Board 2mm-, soil-, and fire-Stone Carton Board 3mm. Its low absorbency also makes it naturally resistant to stains.Stone Paper Carton Board,Stone Paper Film 60um.Stone Paper Film, and not damaged by mildew.Stone Card Paper 250um, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

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

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,Small Chocolate Machine. In this process, ethylene is the polymer, the chemical building block of polyester,Chocolate Enrobing Line.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Chocolate Tempering Machine. The four basic forms are filament,Chocolate Blocks Crusher, tow, and fiberfill. In the filament form,Chocolate Paste Making Equipment, producing smooth-Chocolate Forming Moulds.Chocolate Moulds, filaments are cut to short,Hollow Chocolate Spinning Machine.Chocolate 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.Sandwiching and Packaging.

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-Rotary Rack Oven,Rack Oven, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Automatic Multifunctional Biscuit Production 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.Automatic Multifunctional Biscuit Production Line, which are usually round,Soft Biscuit Rotary Moulder. The number of holes in the spinneret determines the size of the yarn,Biscuit Stacking 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,Biscuit 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,Toffee Fondant Depositing Line.
• Automatic Starch Mogul Line,Die Formed Lollipop Production Line. Also,Hard Candy Depositing Line,Automatic Drying System.

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 Cereal Bar Line

Extruding Type Konjac Ball 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,Aluminium Moulds and Silicon. The rope-Gummy Moving Cart.

Drawing tow

• 1 Newly-Advance Rasing Film Vacuum Cooker.Vacuum Batch Type Cooker.

Crimping

• 2 Drawn tow is then fed into compression boxes,Gummy Kitchen System, at a rate of 9-15 crimps per inch (3-6 per cm).Advance Gummy Production Line.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Gummy Machines.Cloth Bag For Gift.

Cutting

• 4 Following heat setting,Cloth Christmas Gift Bag. 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)Gift Cloth Pouch.Drawstring Sunglasses Pouch, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Microfiber Pouch.

The Future

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