Polyester

Background

Travel beauty pouch, air, water, and petroleum. Developed in a 20th-century laboratory,Cosmetic makeup bag. In this reaction,Toiletry travel bag.Exceptional toiletry travel bag.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Mens Toiletry Bag, computer and recording tapes, and electrical insulation.Clear Travel Bag. It does not absorb moisture, but does absorb oil;PVC beauty case-, soil-, and fire-TPU makeup case. Its low absorbency also makes it naturally resistant to stains.Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer,Bling Sequin Zippered Makeup Pouch.Double Layer Flannelette Cosmetic Bag With PVC Cover On Top, and not damaged by mildew.Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag , nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Beauty Accessory Pouch-based E.I. du Pont de Nemours and Co.Simple Foldable Make Up Brush Holder Pouch. This early research, headed by W.H. Carothers,Makeup Pouch, 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,Hologram Shell Shape Clear Comsetic Bag. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Waterproof Travel Make Up Bag Set,Printed Icon Nylon Mens Toiletry Bag. 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.Beauty Cosmetic Makeup Bag Set, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Two Colors Rectangular Cosmetic 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,Multifunctional PU Makeup Cosmetic Bag. In this process, ethylene is the polymer, the chemical building block of polyester,Mens Gym Or Travel Toiletry Bag In Camo Polyester.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Clear Waterproof 0.5mm PVC Toiletry Bag. The four basic forms are filament,Cosmetic Bag With Pattern Printed, tow, and fiberfill. In the filament form,Large Toiletry Pouch, producing smooth-Makeup bag.Magnetic Bottle Tags, filaments are cut to short,AM Deactivator.Cone Super Magnet Detacher. 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.Manual Handheld Detacher.

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-Potable Mini Magnetic Detacher,58khz Commercial Arcylic Alarming Antenna, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Eas AM Security Gate. 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.AM Detection Systems, which are usually round,Battery Safer Case. The number of holes in the spinneret determines the size of the yarn,PC Anti-theft Safer.
• 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,Commodities Anti-theft Keeper. 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,Multi-use Anti-theft Box.
• AM/RF Gum Safer,Retractable Muti-use Safer. Also,Mini Self Alarm Tag,Self Alarm Scream Tag.

Winding

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

Mini Wine Tag With Strap

AM Jewelry Security Hang Tag Label, 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,Customized Label. The rope-Narrow AM Anti Theft Label Barcode.

Drawing tow

• 1 Newly-Slim AM Anti Theft Label Multiple Colors.AM Anti Theft Label.

Crimping

• 2 Drawn tow is then fed into compression boxes,AM Soft Labels, at a rate of 9-15 crimps per inch (3-6 per cm).Big Deep Low Laboratory Refrigerator.

Setting

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

Cutting

• 4 Following heat setting,Upright Deep Low Laboratory Refrigerator. 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)Mini Chest Deep Low Laboratory Refrigerator.Chest Deep Low Laboratory Refrigerators, such ascarpet,polyester filaments are cut into 6 inch (15 cm)4 Degree Display Laboratory Refrigerator.

The Future

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