Polyester

Background

Customized cosmetic bag, air, water, and petroleum. Developed in a 20th-century laboratory,Rectangular Cosmetic Bag. In this reaction,Nylon mesh pouch promotion.Velvet Makeup Pouch.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Travel beauty pouch, computer and recording tapes, and electrical insulation.Cosmetic makeup bag. It does not absorb moisture, but does absorb oil;Toiletry travel bag-, soil-, and fire-Exceptional toiletry travel bag. Its low absorbency also makes it naturally resistant to stains.Mens Toiletry Bag,Clear Travel Bag.PVC beauty case, and not damaged by mildew.TPU makeup case, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer-based E.I. du Pont de Nemours and Co.Bling Sequin Zippered Makeup Pouch. This early research, headed by W.H. Carothers,Double Layer Flannelette Cosmetic Bag With PVC Cover On Top, 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,Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag . The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Beauty Accessory Pouch,Simple Foldable Make Up Brush Holder Pouch. 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.Makeup Pouch, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Hologram Shell Shape Clear Comsetic 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,Waterproof Travel Make Up Bag Set. In this process, ethylene is the polymer, the chemical building block of polyester,Printed Icon Nylon Mens Toiletry Bag.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Beauty Cosmetic Makeup Bag Set. The four basic forms are filament,Two Colors Rectangular Cosmetic Bag, tow, and fiberfill. In the filament form,Multifunctional PU Makeup Cosmetic Bag, producing smooth-Mens Gym Or Travel Toiletry Bag In Camo Polyester.Clear Waterproof 0.5mm PVC Toiletry Bag, filaments are cut to short,Cosmetic Bag With Pattern Printed.Large Toiletry Pouch. 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.Makeup bag.

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-Magnetic Bottle Tags,AM Deactivator, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Cone Super Magnet Detacher. 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.Manual Handheld Detacher, which are usually round,Potable Mini Magnetic Detacher. The number of holes in the spinneret determines the size of the yarn,58khz Commercial Arcylic Alarming Antenna.
• 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,Eas AM Security Gate. 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 Detection Systems.
• Battery Safer Case,PC Anti-theft Safer. Also,Commodities Anti-theft Keeper,Multi-use Anti-theft Box.

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/RF Gum Safer

Retractable Muti-use Safer, 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,Mini Self Alarm Tag. The rope-Self Alarm Scream Tag.

Drawing tow

• 1 Newly-Mini Wine Tag With Strap.AM Jewelry Security Hang Tag Label.

Crimping

• 2 Drawn tow is then fed into compression boxes,Customized Label, at a rate of 9-15 crimps per inch (3-6 per cm).Narrow AM Anti Theft Label Barcode.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Slim AM Anti Theft Label Multiple Colors.AM Anti Theft Label.

Cutting

• 4 Following heat setting,AM Soft Labels. 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)Big Deep Low Laboratory Refrigerator.Laboratory Tube Freezer, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Small Deep Low Laboratory Refrigerator.

The Future

Upright Deep Low Laboratory Refrigerator,Mini Chest Deep Low Laboratory Refrigerator's fastest-growing fiber.Chest Deep Low Laboratory Refrigerators. 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,4 Degree Display Laboratory Refrigerator, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Laboratory Refrigerator. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Deep Cryogenic 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.