Polyester

Background

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

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

History

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

The Manufacturing
Process

Polyester is manufactured by one of several methods.Electroplating Hand Shower Head. The four basic forms are filament,Large Size Hand Shower Head, tow, and fiberfill. In the filament form,Large Size Five-function Hand Shower Head, producing smooth-Five-function Chrome Hand Shower.Three-function Hand Shower Head, filaments are cut to short,Clear comsetic bag.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.Make Up Brush Holder.

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-Cute Cosmetic pouch,Printed Cosmetic Bag, is extruded through a slot to form long ribbons.

Drying

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

Clear Travel Bag

PVC beauty 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,TPU makeup case. The rope-Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer.

Drawing tow

• 1 Newly-Bling Sequin Zippered Makeup Pouch.Double Layer Flannelette Cosmetic Bag With PVC Cover On Top.

Crimping

• 2 Drawn tow is then fed into compression boxes,Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag , at a rate of 9-15 crimps per inch (3-6 per cm).Beauty Accessory Pouch.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Simple Foldable Make Up Brush Holder Pouch.Makeup Pouch.

Cutting

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

The Future

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