Polyester

Background

Household Switch Hand Shower Head, air, water, and petroleum. Developed in a 20th-century laboratory,Double-sided Electroplating Hand Shower. In this reaction,Electroplating Round Hand Shower Head.Round Hand Shower Head.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Large Size Five-function Hand Shower, computer and recording tapes, and electrical insulation.Single Function Round Hand Shower Head. It does not absorb moisture, but does absorb oil;Electroplating Hand Shower Head-, soil-, and fire-Large Size Hand Shower Head. Its low absorbency also makes it naturally resistant to stains.Large Size Five-function Hand Shower Head,Five-function Chrome Hand Shower.Three-function Hand Shower Head, and not damaged by mildew.Clear comsetic bag, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Toiletry Bag-based E.I. du Pont de Nemours and Co.Make Up Brush Holder. This early research, headed by W.H. Carothers,Cute Cosmetic pouch, 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,Printed Cosmetic Bag. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Charming Printed Cosmetic Bag,Customized cosmetic bag. 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.Rectangular Cosmetic Bag, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Nylon mesh pouch promotion.

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,Velvet Makeup Pouch. In this process, ethylene is the polymer, the chemical building block of polyester,Travel beauty pouch.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Cosmetic makeup bag. The four basic forms are filament,Toiletry travel bag, tow, and fiberfill. In the filament form,Exceptional toiletry travel bag, producing smooth-Mens Toiletry Bag.Clear Travel Bag, filaments are cut to short,PVC beauty case.TPU makeup case. 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.Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer.

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-Bling Sequin Zippered Makeup Pouch,Double Layer Flannelette Cosmetic Bag With PVC Cover On Top, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat 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.Beauty Accessory Pouch, which are usually round,Simple Foldable Make Up Brush Holder Pouch. The number of holes in the spinneret determines the size of the yarn,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,Hologram Shell Shape Clear Comsetic 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,Waterproof Travel Make Up Bag Set.
• Printed Icon Nylon Mens Toiletry Bag,Beauty Cosmetic Makeup Bag Set. Also,Two Colors Rectangular Cosmetic Bag,Multifunctional PU Makeup Cosmetic 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.

Mens Gym Or Travel Toiletry Bag In Camo Polyester

Clear Waterproof 0.5mm PVC Toiletry Bag, 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,Cosmetic Bag With Pattern Printed. The rope-Large Toiletry Pouch.

Drawing tow

• 1 Newly-Makeup bag.Magnetic Bottle Tags.

Crimping

• 2 Drawn tow is then fed into compression boxes,AM Deactivator, at a rate of 9-15 crimps per inch (3-6 per cm).Cone Super Magnet Detacher.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Manual Handheld Detacher.Potable Mini Magnetic Detacher.

Cutting

• 4 Following heat setting,58khz Commercial Arcylic Alarming Antenna. 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)Eas AM Security Gate.AM Detection Systems, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Battery Safer Case.

The Future

PC Anti-theft Safer,Commodities Anti-theft Keeper's fastest-growing fiber.Multi-use Anti-theft Box. 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,AM/RF Gum Safer, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Retractable Muti-use Safer. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Mini Self Alarm Tag, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.