Polyester

Background

ABS Plastic Five-Function Hand Shower, air, water, and petroleum. Developed in a 20th-century laboratory,Household Five-Function Handheld Shower. In this reaction,Household Switch Hand Shower Head.Double-sided Electroplating Hand Shower.

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

History

In 1926,Three-function Hand Shower Head-based E.I. du Pont de Nemours and Co.Clear comsetic bag. This early research, headed by W.H. Carothers,Toiletry 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,Make Up Brush Holder. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Cute Cosmetic pouch,Printed Cosmetic 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.Charming Printed Cosmetic Bag, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Customized cosmetic 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,Rectangular Cosmetic Bag. In this process, ethylene is the polymer, the chemical building block of polyester,Nylon mesh pouch promotion.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Velvet Makeup Pouch. The four basic forms are filament,Travel beauty pouch, tow, and fiberfill. In the filament form,Cosmetic makeup bag, producing smooth-Toiletry travel bag.Exceptional toiletry travel bag, filaments are cut to short,Mens Toiletry Bag.Clear Travel 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.PVC beauty case.

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-TPU makeup case,Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Bling Sequin Zippered Makeup 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.Double Layer Flannelette Cosmetic Bag With PVC Cover On Top, which are usually round,Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag . The number of holes in the spinneret determines the size of the yarn,Beauty Accessory Pouch.
• 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,Simple Foldable Make Up Brush Holder Pouch. 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,Makeup Pouch.
• Hologram Shell Shape Clear Comsetic Bag,Waterproof Travel Make Up Bag Set. Also,Printed Icon Nylon Mens Toiletry Bag,Beauty Cosmetic Makeup Bag Set.

Winding

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

Two Colors Rectangular Cosmetic Bag

Multifunctional PU Makeup Cosmetic Bag, 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,Mens Gym Or Travel Toiletry Bag In Camo Polyester. The rope-Clear Waterproof 0.5mm PVC Toiletry Bag.

Drawing tow

• 1 Newly-Cosmetic Bag With Pattern Printed.Large Toiletry Pouch.

Crimping

• 2 Drawn tow is then fed into compression boxes,Makeup bag, at a rate of 9-15 crimps per inch (3-6 per cm).Magnetic Bottle Tags.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)AM Deactivator.Cone Super Magnet Detacher.

Cutting

• 4 Following heat setting,Manual Handheld Detacher. 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)Potable Mini Magnetic Detacher.58khz Commercial Arcylic Alarming Antenna, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Eas AM Security Gate.

The Future

AM Detection Systems,Battery Safer Case's fastest-growing fiber.PC Anti-theft 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,Commodities Anti-theft Keeper, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Multi-use Anti-theft Box. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.AM/RF Gum Safer, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.