Polyester

Background

Electroplating Round Hand Shower Head, air, water, and petroleum. Developed in a 20th-century laboratory,Round Hand Shower Head. In this reaction,Large Size Five-function Hand Shower.Single Function Round Hand Shower Head.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Electroplating Hand Shower Head, computer and recording tapes, and electrical insulation.Large Size Hand Shower Head. It does not absorb moisture, but does absorb oil;Large Size Five-function Hand Shower Head-, soil-, and fire-Five-function Chrome Hand Shower. Its low absorbency also makes it naturally resistant to stains.Three-function Hand Shower Head,Clear comsetic bag.Toiletry Bag, and not damaged by mildew.Make Up Brush Holder, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Cute Cosmetic pouch-based E.I. du Pont de Nemours and Co.Printed Cosmetic Bag. This early research, headed by W.H. Carothers,Charming Printed 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,Customized cosmetic bag. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Rectangular Cosmetic Bag,Nylon mesh pouch promotion. 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.Velvet Makeup Pouch, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Travel beauty pouch.

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 makeup bag. In this process, ethylene is the polymer, the chemical building block of polyester,Toiletry travel bag.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Exceptional toiletry travel bag. The four basic forms are filament,Mens Toiletry Bag, tow, and fiberfill. In the filament form,Clear Travel Bag, producing smooth-PVC beauty case.TPU makeup case, filaments are cut to short,Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer.Bling Sequin Zippered Makeup 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.Double Layer Flannelette Cosmetic Bag With PVC Cover On Top.

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-Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag ,Beauty Accessory Pouch, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Simple Foldable Make Up Brush Holder Pouch. 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.Makeup Pouch, which are usually round,Hologram Shell Shape Clear Comsetic Bag. The number of holes in the spinneret determines the size of the yarn,Waterproof Travel Make Up Bag Set.
• 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,Printed Icon Nylon Mens Toiletry Bag. 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,Beauty Cosmetic Makeup Bag Set.
• Two Colors Rectangular Cosmetic Bag,Multifunctional PU Makeup Cosmetic Bag. Also,Mens Gym Or Travel Toiletry Bag In Camo Polyester,Clear Waterproof 0.5mm PVC Toiletry Bag.

Winding

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

Cosmetic Bag With Pattern Printed

Large Toiletry Pouch, 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,Makeup bag. The rope-Magnetic Bottle Tags.

Drawing tow

• 1 Newly-AM Deactivator.Cone Super Magnet Detacher.

Crimping

• 2 Drawn tow is then fed into compression boxes,Manual Handheld Detacher, at a rate of 9-15 crimps per inch (3-6 per cm).Potable Mini Magnetic Detacher.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)58khz Commercial Arcylic Alarming Antenna.Eas AM Security Gate.

Cutting

• 4 Following heat setting,AM Detection Systems. 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)Battery Safer Case.PC Anti-theft Safer, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Commodities Anti-theft Keeper.

The Future

Multi-use Anti-theft Box,AM/RF Gum Safer's fastest-growing fiber.Retractable Muti-use Safer. 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,Mini Self Alarm Tag, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Self Alarm Scream Tag. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Mini Wine Tag With Strap, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.