Polyester

Background

Water Holding Agent For Surimi Product, air, water, and petroleum. Developed in a 20th-century laboratory,Water Holding Agent For Fish Fillet. In this reaction,Leavening Agent Blends.Water Holding Agent Blends.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Emulsifying Thickners Blends, computer and recording tapes, and electrical insulation.Thickners Blends. It does not absorb moisture, but does absorb oil;Baking Powder For Deep-fried Dough Sticks-, soil-, and fire-Baking Powder For Noodles. Its low absorbency also makes it naturally resistant to stains.Vegetarian Meat Meal,Fat Replacement Powder.Carrageenan For Tumbling And Marinated, and not damaged by mildew.Aluminium Phosphate, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Zinc Metaphosphate-based E.I. du Pont de Nemours and Co.Diammonium Phosphate. This early research, headed by W.H. Carothers,Zinc Phosphate, 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,Boron Phosphate. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Aluminium Dihydrogen Phosphate,Ammonium Metaphosphate. 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.Sodium Metaphosphate, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Specialty Phosphates.

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,Ferric Orthophosphate. In this process, ethylene is the polymer, the chemical building block of polyester,Potassium Metaphosphate.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Dipotassium Phosphate. The four basic forms are filament,Potassium Phosphates, tow, and fiberfill. In the filament form,Sodium Trimetaphosphate, producing smooth-Sodium Hexametaphosphate.Trisodium Pyrophosphate, filaments are cut to short,Trisodium Phosphate.Disodium Phosphate. 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.Monosodium Phosphate.

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-Tricalcium Phosphate,Monocalcium Phosphate, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Calcium Phosphates. 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.Phosphates, which are usually round,Evenly heated. The number of holes in the spinneret determines the size of the yarn,smokeless.
• 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,H2 Series 720P Small Size Hard Disk Mobile Digital Video Recorder. 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,H5 Series 1080P Single-Ding Mobile DVR.
• S3 Series 1080P SD Card Mobile DVR,Long Lasting Waterproof Eyeliner Gel. Also,Waterproof Long Lasting Eyeliner,Eyeliner.

Winding

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

Moisturizing Essence Rose Water

Skin Care, 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,2 in 1 cream and liquid foundation. The rope-Ampoule Cushion Foundation.

Drawing tow

• 1 Newly-Perfect Coverage Foundation Cream.Brightening Liquid Foundation.

Crimping

• 2 Drawn tow is then fed into compression boxes,Zero Pores Separation Cream, at a rate of 9-15 crimps per inch (3-6 per cm).Brightening Liquid Highlighter.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)long lasting Lip Gloss.Flattering Face Blush.

Cutting

• 4 Following heat setting,Double Head Mascara. 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)Dense Slender Mascara.Eyes makeup, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Silky Eyebrow Powder.

The Future

Waterproof Liquid Eyebrow Pencil,Waterproof Eyebrow Pencils's fastest-growing fiber.High Pigment Eyeshadow Palette. 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,Natural Organic Makeup Cleansing Oil, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Organic Cotton Makeup Remover. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Makeup Remover, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.