Polyester

Background

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

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

History

In 1926,Household Switch Hand Shower Head-based E.I. du Pont de Nemours and Co.Double-sided Electroplating Hand Shower. This early research, headed by W.H. Carothers,Electroplating Round Hand Shower Head, 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,Round Hand Shower Head. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Large Size Five-function Hand Shower,Single Function 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.Electroplating 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 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 Five-function Hand Shower Head. In this process, ethylene is the polymer, the chemical building block of polyester,Five-function Chrome Hand Shower.

The Manufacturing
Process

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

Drying

• 3 After the polyester emerges from polymerization,Velvet 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.Travel beauty pouch, which are usually round,Cosmetic makeup bag. The number of holes in the spinneret determines the size of the yarn,Toiletry travel 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,Exceptional 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,Mens Toiletry Bag.
• Clear Travel Bag,PVC beauty case. Also,TPU makeup case,Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer.

Winding

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

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

Drawing tow

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

Crimping

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

Setting

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

Cutting

• 4 Following heat setting,Two Colors Rectangular Cosmetic Bag. 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)Multifunctional PU Makeup Cosmetic Bag.Mens Gym Or Travel Toiletry Bag In Camo Polyester, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Clear Waterproof 0.5mm PVC Toiletry Bag.

The Future

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