Polyester

Background

Exceptional toiletry travel bag, air, water, and petroleum. Developed in a 20th-century laboratory,Mens Toiletry Bag. In this reaction,Clear Travel Bag.PVC beauty case.

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

History

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

The Manufacturing
Process

Polyester is manufactured by one of several methods.Makeup bag. The four basic forms are filament,Magnetic Bottle Tags, tow, and fiberfill. In the filament form,AM Deactivator, producing smooth-Cone Super Magnet Detacher.Manual Handheld Detacher, filaments are cut to short,Potable Mini Magnetic Detacher.58khz Commercial Arcylic Alarming Antenna. 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.Eas AM Security Gate.

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-AM Detection Systems,Battery Safer Case, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,PC Anti-theft 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.Commodities Anti-theft Keeper, which are usually round,Multi-use Anti-theft Box. The number of holes in the spinneret determines the size of the yarn,AM/RF Gum 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,Retractable Muti-use Safer. 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,Mini Self Alarm Tag.
• Self Alarm Scream Tag,Mini Wine Tag With Strap. Also,AM Jewelry Security Hang Tag Label,Customized 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.

Narrow AM Anti Theft Label Barcode

Slim AM Anti Theft Label Multiple Colors, 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,AM Anti Theft Label. The rope-AM Soft Labels.

Drawing tow

• 1 Newly-Big Deep Low Laboratory Refrigerator.Laboratory Tube Freezer.

Crimping

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

Setting

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

Cutting

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

The Future

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