Polyester

Background

PVC beauty case, air, water, and petroleum. Developed in a 20th-century laboratory,TPU makeup case. In this reaction,Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer.Bling Sequin Zippered Makeup Pouch.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Double Layer Flannelette Cosmetic Bag With PVC Cover On Top, computer and recording tapes, and electrical insulation.Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag . It does not absorb moisture, but does absorb oil;Beauty Accessory Pouch-, soil-, and fire-Simple Foldable Make Up Brush Holder Pouch. Its low absorbency also makes it naturally resistant to stains.Makeup Pouch,Hologram Shell Shape Clear Comsetic Bag.Waterproof Travel Make Up Bag Set, and not damaged by mildew.Printed Icon Nylon Mens Toiletry Bag, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Beauty Cosmetic Makeup Bag Set-based E.I. du Pont de Nemours and Co.Two Colors Rectangular Cosmetic Bag. This early research, headed by W.H. Carothers,Multifunctional PU Makeup Cosmetic Bag, 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,Mens Gym Or Travel Toiletry Bag In Camo Polyester. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Clear Waterproof 0.5mm PVC Toiletry Bag,Cosmetic Bag With Pattern Printed. 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.Large Toiletry Pouch, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Makeup bag.

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,Magnetic Bottle Tags. In this process, ethylene is the polymer, the chemical building block of polyester,AM Deactivator.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Cone Super Magnet Detacher. The four basic forms are filament,Manual Handheld Detacher, tow, and fiberfill. In the filament form,Potable Mini Magnetic Detacher, producing smooth-58khz Commercial Arcylic Alarming Antenna.Eas AM Security Gate, filaments are cut to short,AM Detection Systems.Battery Safer Case. 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.PC Anti-theft Safer.

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-Commodities Anti-theft Keeper,Multi-use Anti-theft Box, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,AM/RF Gum Safer. 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.Retractable Muti-use Safer, which are usually round,Mini Self Alarm Tag. The number of holes in the spinneret determines the size of the yarn,Self Alarm Scream Tag.
• 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,Mini Wine Tag With Strap. 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,AM Jewelry Security Hang Tag Label.
• Customized Label,Narrow AM Anti Theft Label Barcode. Also,Slim AM Anti Theft Label Multiple Colors,AM Anti Theft Label.

Winding

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

AM Soft Labels

Big Deep Low Laboratory Refrigerator, 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,Laboratory Tube Freezer. The rope-Small Deep Low Laboratory Refrigerator.

Drawing tow

• 1 Newly-Upright Deep Low Laboratory Refrigerator.Mini Chest Deep Low Laboratory Refrigerator.

Crimping

• 2 Drawn tow is then fed into compression boxes,Chest Deep Low Laboratory Refrigerators, at a rate of 9-15 crimps per inch (3-6 per cm).4 Degree Display Laboratory Refrigerator.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Laboratory Refrigerator.Deep Cryogenic Car Freezer.

Cutting

• 4 Following heat setting,Deep Low Temp Car Freezer. 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)Portable Low Temp Car Freezer.Low Temp Car Freezer, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Car Freezer.

The Future

Upright Ultra Low Temperature Freezer ,Small Deep Low Temperature Freezer 's fastest-growing fiber.Upright Ultra Low Temperature Freezer . 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,Ultra Low Cryogenic Freezer , was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Ultra Deep Cold Temperature Freezer . Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Cold Medical Freezer, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.