Polyester

Background

Electroplating Square Head Shower, air, water, and petroleum. Developed in a 20th-century laboratory,Yellow Square Head Shower. In this reaction,Temperature Control LED Shower Head.LED Shower Head.

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

History

In 1926,Large Size Five-function Hand Shower-based E.I. du Pont de Nemours and Co.Single Function Round Hand Shower Head. This early research, headed by W.H. Carothers,Electroplating 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,Large Size 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 Head,Five-function Chrome 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.Three-function Hand Shower Head, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Clear comsetic 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,Toiletry Bag. In this process, ethylene is the polymer, the chemical building block of polyester,Make Up Brush Holder.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Cute Cosmetic pouch. The four basic forms are filament,Printed Cosmetic Bag, tow, and fiberfill. In the filament form,Charming Printed Cosmetic Bag, producing smooth-Customized cosmetic bag.Rectangular Cosmetic Bag, filaments are cut to short,Nylon mesh pouch promotion.Velvet Makeup Pouch. 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.Travel beauty 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-Cosmetic makeup bag,Toiletry travel bag, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Exceptional toiletry travel 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.Mens Toiletry Bag, which are usually round,Clear Travel Bag. The number of holes in the spinneret determines the size of the yarn,PVC beauty case.
• 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,TPU makeup case. 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,Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer.
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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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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,Hologram Shell Shape Clear Comsetic Bag. The rope-Waterproof Travel Make Up Bag Set.

Drawing tow

• 1 Newly-Printed Icon Nylon Mens Toiletry Bag.Beauty Cosmetic Makeup Bag Set.

Crimping

• 2 Drawn tow is then fed into compression boxes,Two Colors Rectangular Cosmetic Bag, at a rate of 9-15 crimps per inch (3-6 per cm).Multifunctional PU Makeup Cosmetic Bag.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Mens Gym Or Travel Toiletry Bag In Camo Polyester.Clear Waterproof 0.5mm PVC Toiletry Bag.

Cutting

• 4 Following heat setting,Cosmetic Bag With Pattern Printed. 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)Large Toiletry Pouch.Makeup bag, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Magnetic Bottle Tags.

The Future

AM Deactivator,Cone Super Magnet Detacher's fastest-growing fiber.Manual Handheld Detacher. 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,Potable Mini Magnetic Detacher, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,58khz Commercial Arcylic Alarming Antenna. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Eas AM Security Gate, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.