Polyester

Background

Stone Paper Film, air, water, and petroleum. Developed in a 20th-century laboratory,Stone Card Paper 250um. In this reaction,Stone Paper 180um.Stone Paper Soft.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Full Automatic Marshmallow Production Line, computer and recording tapes, and electrical insulation.Deposited Marshmallow Line. It does not absorb moisture, but does absorb oil;Full Automatic Extruded Marshmallow Production Line-, soil-, and fire-Popping Boba Line. Its low absorbency also makes it naturally resistant to stains.Chocolate Blocks Guitar Cutter,Chocolate Slicing Machine.Small Chocolate Machine, and not damaged by mildew.Chocolate Enrobing Line, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Chocolate Tempering Machine-based E.I. du Pont de Nemours and Co.Chocolate Blocks Crusher. This early research, headed by W.H. Carothers,Chocolate Paste Making Equipment, 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,Chocolate Forming Moulds. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Chocolate Moulds,Hollow Chocolate Spinning Machine. 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 Equipment, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Sandwiching and Packaging.

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,Rotary Rack Oven. In this process, ethylene is the polymer, the chemical building block of polyester,Rack Oven.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Automatic Multifunctional Biscuit Production Line. The four basic forms are filament,Automatic Multifunctional Biscuit Production Line, tow, and fiberfill. In the filament form,Soft Biscuit Rotary Moulder, producing smooth-Biscuit Stacking Machine.Biscuit Equipment, filaments are cut to short,Toffee Fondant Depositing Line.Automatic Starch Mogul 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.Die Formed Lollipop Production 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-Hard Candy Depositing Line,Automatic Drying System, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Automatic Cereal Bar 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.Extruding Type Konjac Ball Production Line, which are usually round,Aluminium Moulds and Silicon. The number of holes in the spinneret determines the size of the yarn,Gummy Moving Cart.
• 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,Advance Rasing Film Vacuum Cooker. 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,Vacuum Batch Type Cooker.
• Gummy Kitchen System,Advance Gummy Production Line. Also,Gummy Machines,Cloth Bag For Gift.

Winding

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

Cloth Christmas Gift Bag

Gift Cloth Pouch, 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,Drawstring Sunglasses Pouch. The rope-Microfiber Pouch.

Drawing tow

• 1 Newly-Printing Paper Shopping Bag.Shopping Gift Paper Bag For Packaging.

Crimping

• 2 Drawn tow is then fed into compression boxes,Paper Bags, at a rate of 9-15 crimps per inch (3-6 per cm).Soft Microfiber Cleaning Cloth For Jewelry.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Jewelry Polishing Cleaning Cloth Printed.Microfiber Camera Cleaning Cloth.

Cutting

• 4 Following heat setting,Camera Cleaning Cloth. 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)Cleaning Cloth For Eyeglasses.Packaging For Sunglasses, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Spectacle Frame Box.

The Future

Black Sunglasses Case Packaging,Sunglasses Product Packaging's fastest-growing fiber.Paper Packaging Box For Eyeglasses Frames. 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,Corrugated PVC Suction Hose, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Clear And Transparent PVC Tubing. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.PVC Clear Hose, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.