Polyester

Background

Electroplating Hand Shower Head, air, water, and petroleum. Developed in a 20th-century laboratory,Large Size Hand Shower Head. In this reaction,Large Size Five-function Hand Shower Head.Five-function Chrome Hand Shower.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Three-function Hand Shower Head, computer and recording tapes, and electrical insulation.Clear comsetic bag. It does not absorb moisture, but does absorb oil;Toiletry Bag-, soil-, and fire-Make Up Brush Holder. Its low absorbency also makes it naturally resistant to stains.Cute Cosmetic pouch,Printed Cosmetic Bag.Charming Printed Cosmetic Bag, and not damaged by mildew.Customized cosmetic bag, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Rectangular Cosmetic Bag-based E.I. du Pont de Nemours and Co.Nylon mesh pouch promotion. This early research, headed by W.H. Carothers,Velvet Makeup 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,Travel beauty pouch. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Cosmetic makeup bag,Toiletry travel 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.Exceptional toiletry travel bag, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Mens Toiletry 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,Clear Travel Bag. In this process, ethylene is the polymer, the chemical building block of polyester,PVC beauty case.

The Manufacturing
Process

Polyester is manufactured by one of several methods.TPU makeup case. The four basic forms are filament,Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer, tow, and fiberfill. In the filament form,Bling Sequin Zippered Makeup Pouch, producing smooth-Double Layer Flannelette Cosmetic Bag With PVC Cover On Top.Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag , filaments are cut to short,Beauty Accessory Pouch.Simple Foldable Make Up Brush Holder 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.Makeup 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-Hologram Shell Shape Clear Comsetic Bag,Waterproof Travel Make Up Bag Set, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Printed Icon Nylon Mens Toiletry 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 Cosmetic Makeup Bag Set, which are usually round,Two Colors Rectangular Cosmetic Bag. The number of holes in the spinneret determines the size of the yarn,Multifunctional PU Makeup Cosmetic 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,Mens Gym Or Travel Toiletry Bag In Camo Polyester. 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,Clear Waterproof 0.5mm PVC Toiletry Bag.
• Cosmetic Bag With Pattern Printed,Large Toiletry Pouch. Also,Makeup bag,Magnetic Bottle Tags.

Winding

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

AM Deactivator

Cone Super Magnet Detacher, 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,Manual Handheld Detacher. The rope-Potable Mini Magnetic Detacher.

Drawing tow

• 1 Newly-58khz Commercial Arcylic Alarming Antenna.Eas AM Security Gate.

Crimping

• 2 Drawn tow is then fed into compression boxes,AM Detection Systems, at a rate of 9-15 crimps per inch (3-6 per cm).Battery Safer Case.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)PC Anti-theft Safer.Commodities Anti-theft Keeper.

Cutting

• 4 Following heat setting,Multi-use Anti-theft Box. 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)AM/RF Gum Safer.Retractable Muti-use Safer, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Mini Self Alarm Tag.

The Future

Self Alarm Scream Tag,Mini Wine Tag With Strap's fastest-growing fiber.AM Jewelry Security Hang Tag Label. 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,Customized Label, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Narrow AM Anti Theft Label Barcode. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Slim AM Anti Theft Label Multiple Colors, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.