Polyester

Background

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

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

History

In 1926,Customized cosmetic bag-based E.I. du Pont de Nemours and Co.Rectangular Cosmetic Bag. This early research, headed by W.H. Carothers,Nylon mesh pouch promotion, 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,Velvet Makeup Pouch. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Travel beauty pouch,Cosmetic makeup 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.Toiletry travel bag, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Exceptional toiletry travel 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,Mens Toiletry Bag. In this process, ethylene is the polymer, the chemical building block of polyester,Clear Travel Bag.

The Manufacturing
Process

Polyester is manufactured by one of several methods.PVC beauty case. The four basic forms are filament,TPU makeup case, tow, and fiberfill. In the filament form,Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer, producing smooth-Bling Sequin Zippered Makeup Pouch.Double Layer Flannelette Cosmetic Bag With PVC Cover On Top, filaments are cut to short,Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag .Beauty Accessory 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.Simple Foldable Make Up Brush Holder Pouch.

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-Makeup Pouch,Hologram Shell Shape Clear Comsetic Bag, is extruded through a slot to form long ribbons.

Drying

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

Magnetic Bottle Tags

AM Deactivator, 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,Cone Super Magnet Detacher. The rope-Manual Handheld Detacher.

Drawing tow

• 1 Newly-Potable Mini Magnetic Detacher.58khz Commercial Arcylic Alarming Antenna.

Crimping

• 2 Drawn tow is then fed into compression boxes,Eas AM Security Gate, at a rate of 9-15 crimps per inch (3-6 per cm).AM Detection Systems.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Battery Safer Case.PC Anti-theft Safer.

Cutting

• 4 Following heat setting,Commodities Anti-theft Keeper. 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)Multi-use Anti-theft Box.AM/RF Gum Safer, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Retractable Muti-use Safer.

The Future

Mini Self Alarm Tag,Self Alarm Scream Tag's fastest-growing fiber.Mini Wine Tag With Strap. 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,AM Jewelry Security Hang Tag Label, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Customized Label. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Narrow AM Anti Theft Label Barcode, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.