Polyester

Background

Toiletry Bag, air, water, and petroleum. Developed in a 20th-century laboratory,Make Up Brush Holder. In this reaction,Cute Cosmetic pouch.Printed Cosmetic Bag.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Charming Printed Cosmetic Bag, computer and recording tapes, and electrical insulation.Customized cosmetic bag. It does not absorb moisture, but does absorb oil;Rectangular Cosmetic Bag-, soil-, and fire-Nylon mesh pouch promotion. Its low absorbency also makes it naturally resistant to stains.Velvet Makeup Pouch,Travel beauty pouch.Cosmetic makeup bag, and not damaged by mildew.Toiletry travel bag, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Exceptional toiletry travel bag-based E.I. du Pont de Nemours and Co.Mens Toiletry Bag. This early research, headed by W.H. Carothers,Clear Travel 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,PVC beauty case. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.TPU makeup case,Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer. 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.Bling Sequin Zippered Makeup Pouch, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Double Layer Flannelette Cosmetic Bag With PVC Cover On Top.

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,Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag . In this process, ethylene is the polymer, the chemical building block of polyester,Beauty Accessory Pouch.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Simple Foldable Make Up Brush Holder Pouch. The four basic forms are filament,Makeup Pouch, tow, and fiberfill. In the filament form,Hologram Shell Shape Clear Comsetic Bag, producing smooth-Waterproof Travel Make Up Bag Set.Printed Icon Nylon Mens Toiletry Bag, filaments are cut to short,Beauty Cosmetic Makeup Bag Set.Two Colors Rectangular Cosmetic Bag. 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.Multifunctional PU Makeup Cosmetic 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-Mens Gym Or Travel Toiletry Bag In Camo Polyester,Clear Waterproof 0.5mm PVC Toiletry Bag, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Cosmetic Bag With Pattern Printed. 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.Large Toiletry Pouch, which are usually round,Makeup bag. The number of holes in the spinneret determines the size of the yarn,Magnetic Bottle Tags.
• 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,AM Deactivator. 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,Cone Super Magnet Detacher.
• Manual Handheld Detacher,Potable Mini Magnetic Detacher. Also,58khz Commercial Arcylic Alarming Antenna,Eas AM Security Gate.

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 Detection Systems

Battery Safer Case, 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,PC Anti-theft Safer. The rope-Commodities Anti-theft Keeper.

Drawing tow

• 1 Newly-Multi-use Anti-theft Box.AM/RF Gum Safer.

Crimping

• 2 Drawn tow is then fed into compression boxes,Retractable Muti-use Safer, at a rate of 9-15 crimps per inch (3-6 per cm).Mini Self Alarm Tag.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Self Alarm Scream Tag.Mini Wine Tag With Strap.

Cutting

• 4 Following heat setting,AM Jewelry Security Hang Tag Label. 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)Customized Label.Narrow AM Anti Theft Label Barcode, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Slim AM Anti Theft Label Multiple Colors.

The Future

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