Polyester

Background

Five-function Chrome Hand Shower, air, water, and petroleum. Developed in a 20th-century laboratory,Three-function Hand Shower Head. In this reaction,Clear comsetic bag.Toiletry Bag.

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

History

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

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,Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer. In this process, ethylene is the polymer, the chemical building block of polyester,Bling Sequin Zippered Makeup Pouch.

The Manufacturing
Process

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

Drying

• 3 After the polyester emerges from polymerization,Multifunctional PU Makeup 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.Mens Gym Or Travel Toiletry Bag In Camo Polyester, which are usually round,Clear Waterproof 0.5mm PVC Toiletry Bag. The number of holes in the spinneret determines the size of the yarn,Cosmetic Bag With Pattern Printed.
• 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,Large Toiletry 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,Makeup bag.
• Magnetic Bottle Tags,AM Deactivator. Also,Cone Super Magnet Detacher,Manual Handheld Detacher.

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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58khz Commercial Arcylic Alarming Antenna, 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,Eas AM Security Gate. The rope-AM Detection Systems.

Drawing tow

• 1 Newly-Battery Safer Case.PC Anti-theft Safer.

Crimping

• 2 Drawn tow is then fed into compression boxes,Commodities Anti-theft Keeper, at a rate of 9-15 crimps per inch (3-6 per cm).Multi-use Anti-theft Box.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)AM/RF Gum Safer.Retractable Muti-use Safer.

Cutting

• 4 Following heat setting,Mini Self Alarm Tag. 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)Self Alarm Scream Tag.Mini Wine Tag With Strap, such ascarpet,polyester filaments are cut into 6 inch (15 cm)AM Jewelry Security Hang Tag Label.

The Future

Customized Label,Narrow AM Anti Theft Label Barcode's fastest-growing fiber.Slim AM Anti Theft Label Multiple Colors. 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 Anti Theft Label, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,AM Soft Labels. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Big Deep Low Laboratory Refrigerator, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.