Polyester

Background

Popping Boba Line, air, water, and petroleum. Developed in a 20th-century laboratory,Chocolate Blocks Guitar Cutter. In this reaction,Chocolate Slicing Machine.Small Chocolate Machine.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Chocolate Enrobing Line, computer and recording tapes, and electrical insulation.Chocolate Tempering Machine. It does not absorb moisture, but does absorb oil;Chocolate Blocks Crusher-, soil-, and fire-Chocolate Paste Making Equipment. Its low absorbency also makes it naturally resistant to stains.Chocolate Forming Moulds,Chocolate Moulds.Hollow Chocolate Spinning Machine, and not damaged by mildew.Chocolate Equipment, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Sandwiching and Packaging-based E.I. du Pont de Nemours and Co.Rotary Rack Oven. This early research, headed by W.H. Carothers,Rack Oven, 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,Automatic Multifunctional Biscuit Production Line. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Automatic Multifunctional Biscuit Production Line,Soft Biscuit Rotary Moulder. 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.Biscuit Stacking Machine, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Biscuit Equipment.

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,Toffee Fondant Depositing Line. In this process, ethylene is the polymer, the chemical building block of polyester,Automatic Starch Mogul Line.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Die Formed Lollipop Production Line. The four basic forms are filament,Hard Candy Depositing Line, tow, and fiberfill. In the filament form,Automatic Drying System, producing smooth-Automatic Cereal Bar Line.Extruding Type Konjac Ball Production Line, filaments are cut to short,Aluminium Moulds and Silicon.Gummy Moving Cart. 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.Advance Rasing Film Vacuum Cooker.

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-Vacuum Batch Type Cooker,Gummy Kitchen System, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Advance Gummy 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.Gummy Machines, which are usually round,Cloth Bag For Gift. The number of holes in the spinneret determines the size of the yarn,Cloth Christmas Gift Bag.
• 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,Gift Cloth Pouch. 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,Drawstring Sunglasses Pouch.
• Microfiber Pouch,Printing Paper Shopping Bag. Also,Shopping Gift Paper Bag For Packaging,Paper Bags.

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 Microfiber Cleaning Cloth For Jewelry

Jewelry Polishing Cleaning Cloth Printed, 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,Microfiber Camera Cleaning Cloth. The rope-Camera Cleaning Cloth.

Drawing tow

• 1 Newly-Cleaning Cloth For Eyeglasses.Packaging For Sunglasses.

Crimping

• 2 Drawn tow is then fed into compression boxes,Spectacle Frame Box, at a rate of 9-15 crimps per inch (3-6 per cm).Black Sunglasses Case Packaging.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Sunglasses Product Packaging.Paper Packaging Box For Eyeglasses Frames.

Cutting

• 4 Following heat setting,Corrugated PVC Suction Hose. 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)Clear And Transparent PVC Tubing.PVC Clear Hose, such ascarpet,polyester filaments are cut into 6 inch (15 cm)General Purpose PVC Garden Hose.

The Future

Non-kink PVC Garden Hose,Home PVC Garden Hose's fastest-growing fiber.Flexible PVC Garden Hose. 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,Anti-UV PVC Garden Hose, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,PVC Garden Hose. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Torsion Free Garden Hose, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.