Polyester

Background

Classic Round Head Shower, air, water, and petroleum. Developed in a 20th-century laboratory,Large Round Head Shower. In this reaction,ABS Plastic Round Head Shower.Classic Plating Overhead Shower.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Waterfall Head Shower, computer and recording tapes, and electrical insulation.Electroplating Square Head Shower. It does not absorb moisture, but does absorb oil;Yellow Square Head Shower-, soil-, and fire-Temperature Control LED Shower Head. Its low absorbency also makes it naturally resistant to stains.LED Shower Head,Square Waterfall Small Top Shower Head.Small Top Shower Head, and not damaged by mildew.ABS Plastic Five-Function Hand Shower, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Household Five-Function Handheld Shower-based E.I. du Pont de Nemours and Co.Household Switch Hand Shower Head. This early research, headed by W.H. Carothers,Double-sided Electroplating Hand Shower, 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,Electroplating Round Hand Shower Head. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Round Hand Shower Head,Large Size Five-function Hand Shower. 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.Single Function Round Hand Shower Head, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Electroplating Hand Shower Head.

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,Large Size Hand Shower Head. In this process, ethylene is the polymer, the chemical building block of polyester,Large Size Five-function Hand Shower Head.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Five-function Chrome Hand Shower. The four basic forms are filament,Three-function Hand Shower Head, tow, and fiberfill. In the filament form,Clear comsetic bag, producing smooth-Toiletry Bag.Make Up Brush Holder, filaments are cut to short,Cute Cosmetic pouch.Printed Cosmetic 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.Charming Printed Cosmetic 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-Customized cosmetic bag,Rectangular Cosmetic Bag, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Nylon mesh pouch promotion. 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.Velvet Makeup Pouch, which are usually round,Travel beauty pouch. The number of holes in the spinneret determines the size of the yarn,Cosmetic makeup 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,Toiletry travel 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,Exceptional toiletry travel bag.
• Mens Toiletry Bag,Clear Travel Bag. Also,PVC beauty case,TPU makeup case.

Winding

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

Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer

Bling Sequin Zippered Makeup 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,Double Layer Flannelette Cosmetic Bag With PVC Cover On Top. The rope-Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag .

Drawing tow

• 1 Newly-Beauty Accessory Pouch.Simple Foldable Make Up Brush Holder Pouch.

Crimping

• 2 Drawn tow is then fed into compression boxes,Makeup Pouch, at a rate of 9-15 crimps per inch (3-6 per cm).Hologram Shell Shape Clear Comsetic Bag.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Waterproof Travel Make Up Bag Set.Printed Icon Nylon Mens Toiletry Bag.

Cutting

• 4 Following heat setting,Beauty Cosmetic Makeup Bag Set. 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)Two Colors Rectangular Cosmetic Bag.Multifunctional PU Makeup Cosmetic Bag, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Mens Gym Or Travel Toiletry Bag In Camo Polyester.

The Future

Clear Waterproof 0.5mm PVC Toiletry Bag,Cosmetic Bag With Pattern Printed's fastest-growing fiber.Large Toiletry Pouch. 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,Makeup bag, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Magnetic Bottle Tags. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.AM Deactivator, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.