Polyester

Background

Shower Hose, air, water, and petroleum. Developed in a 20th-century laboratory,Ultra-thin Overhead Shower. In this reaction,Classic Round Head Shower.Large Round Head Shower.

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

History

In 1926,Small Top Shower Head-based E.I. du Pont de Nemours and Co.ABS Plastic Five-Function Hand Shower. This early research, headed by W.H. Carothers,Household Five-Function Handheld 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,Household Switch Hand Shower Head. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Double-sided Electroplating Hand Shower,Electroplating Round Hand Shower Head. 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.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.Large Size Five-function Hand Shower.

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,Single Function Round Hand Shower Head. In this process, ethylene is the polymer, the chemical building block of polyester,Electroplating Hand Shower Head.

The Manufacturing
Process

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

Drying

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

PVC beauty case

TPU makeup case, 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,Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer. The rope-Bling Sequin Zippered Makeup Pouch.

Drawing tow

• 1 Newly-Double Layer Flannelette Cosmetic Bag With PVC Cover On Top.Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag .

Crimping

• 2 Drawn tow is then fed into compression boxes,Beauty Accessory Pouch, at a rate of 9-15 crimps per inch (3-6 per cm).Simple Foldable Make Up Brush Holder Pouch.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Makeup Pouch.Hologram Shell Shape Clear Comsetic Bag.

Cutting

• 4 Following heat setting,Waterproof Travel Make Up 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)Printed Icon Nylon Mens Toiletry Bag.Beauty Cosmetic Makeup Bag Set, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Two Colors Rectangular Cosmetic Bag.

The Future

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