Polyester

Background

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

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

History

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

The Manufacturing
Process

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

Drying

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

Beauty Cosmetic Makeup Bag Set

Two Colors Rectangular 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,Multifunctional PU Makeup Cosmetic Bag. The rope-Mens Gym Or Travel Toiletry Bag In Camo Polyester.

Drawing tow

• 1 Newly-Clear Waterproof 0.5mm PVC Toiletry Bag.Cosmetic Bag With Pattern Printed.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Magnetic Bottle Tags.AM Deactivator.

Cutting

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

The Future

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