Polyester

Background

BG-830 Multifunctional Spraying Machine, air, water, and petroleum. Developed in a 20th-century laboratory,BG-860 Multifunctional Spraying Machine. In this reaction,BG-870 Multifunctional Spraying Machine.BG-930 Multifunctional Spraying Machine.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Multifunctional Cement Mortar Spraying Machine, computer and recording tapes, and electrical insulation.Cement Mortar Spray Machine. It does not absorb moisture, but does absorb oil;Food Additives-, soil-, and fire-PS Phosphatidylserine. Its low absorbency also makes it naturally resistant to stains.Phosphatidylserine,super soya lecithin.Soy Lecithin granules, and not damaged by mildew.Soyabean Lecithin, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Soy Lecithin Powder-based E.I. du Pont de Nemours and Co.Soya Lecithin. This early research, headed by W.H. Carothers,Food Additives, 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,Natural Phospholipids. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Natural Lecithin,Modified Lecithin. 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.Sunflower Lecithin, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Food Grade Sunflower Lecithin.

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,Natural Lecithin. In this process, ethylene is the polymer, the chemical building block of polyester,Sodium Saccharin BP/USP/GMP.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Sodium Saccharin CAS 6155-57-3. The four basic forms are filament,Sodium Saccharin 40-80 MESH, tow, and fiberfill. In the filament form,Anhydrous Sodium Saccharin CAS 128-44-9, producing smooth-Feed Grade Sodium Saccharin.Insoluble Saccharin CAS 81-07-2, filaments are cut to short,Sodium Saccharin for Food and Beverage.Soda ash. 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.Musk Xylene With Crystal Powder.

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-100% Natural Musk Ketone Powder,Musk ketone CAS 81-14-1, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Light Magnesium Oxide CAS 1309-48-4. 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.Caustic Soda, which are usually round,Caustic Soda CAS 1310-73-2. The number of holes in the spinneret determines the size of the yarn,Sodium Hydrosulphite.
• 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,Calcium lignosulphonate. 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,Calcium lignosulphonate CAS 8061-52-7.
• Choline Chloride Corn Cob,Calcium Gluconate CAS 299-28-5. Also,Ferrous Gluconate CAS 299-29-6,Sodium Alginate CAS 9005-38-3.

Winding

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

Xanthan Gum CAS 11138-66-2

Food Thickener, 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,Aspartame CAS 22839-47-0. The rope-Lactose powder CAS 63-42-3.

Drawing tow

• 1 Newly-Sucralose CAS 56038-13-2.Maltitol CAS 585-88-6.

Crimping

• 2 Drawn tow is then fed into compression boxes,Food Sweetener, at a rate of 9-15 crimps per inch (3-6 per cm).Potassium Sorbate CAS 24634-61-5.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Food Preservatives.Ethyl Vanillin CAS 121-32-4.

Cutting

• 4 Following heat setting,Food Flavoring Agents. 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)Food Additives.standard ball bearing, such ascarpet,polyester filaments are cut into 6 inch (15 cm)ball screw bearings.

The Future

linear guide module,Cable Drag Chain's fastest-growing fiber.Laser Cutting Machine. 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,Cutting Machine, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,1325 Cutting Machine For Sales. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.CNC Machine, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.