Polyester

Background

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

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

History

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

The Manufacturing
Process

Polyester is manufactured by one of several methods.Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer. The four basic forms are filament,Bling Sequin Zippered Makeup Pouch, tow, and fiberfill. In the filament form,Double Layer Flannelette Cosmetic Bag With PVC Cover On Top, producing smooth-Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag .Beauty Accessory Pouch, filaments are cut to short,Simple Foldable Make Up Brush Holder Pouch.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.Hologram Shell Shape Clear Comsetic 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-Waterproof Travel Make Up Bag Set,Printed Icon Nylon Mens Toiletry Bag, is extruded through a slot to form long ribbons.

Drying

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

Winding

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

Cone Super Magnet Detacher

Manual Handheld Detacher, 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,Potable Mini Magnetic Detacher. The rope-58khz Commercial Arcylic Alarming Antenna.

Drawing tow

• 1 Newly-Eas AM Security Gate.AM Detection Systems.

Crimping

• 2 Drawn tow is then fed into compression boxes,Battery Safer Case, at a rate of 9-15 crimps per inch (3-6 per cm).PC Anti-theft Safer.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Commodities Anti-theft Keeper.Multi-use Anti-theft Box.

Cutting

• 4 Following heat setting,AM/RF Gum Safer. 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)Retractable Muti-use Safer.Mini Self Alarm Tag, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Self Alarm Scream Tag.

The Future

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