Polyester

Background

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

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

History

In 1926,Cosmetic makeup bag-based E.I. du Pont de Nemours and Co.Toiletry travel bag. This early research, headed by W.H. Carothers,Exceptional 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,Mens Toiletry Bag. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Clear Travel Bag,PVC beauty case. 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.TPU makeup case, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer.

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,Bling Sequin Zippered Makeup Pouch. In this process, ethylene is the polymer, the chemical building block of polyester,Double Layer Flannelette Cosmetic Bag With PVC Cover On Top.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag . The four basic forms are filament,Beauty Accessory Pouch, tow, and fiberfill. In the filament form,Simple Foldable Make Up Brush Holder Pouch, producing smooth-Makeup Pouch.Hologram Shell Shape Clear Comsetic Bag, filaments are cut to short,Waterproof Travel Make Up Bag Set.Printed Icon Nylon Mens 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.Beauty Cosmetic Makeup Bag Set.

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-Two Colors Rectangular Cosmetic Bag,Multifunctional PU Makeup Cosmetic Bag, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Mens Gym Or Travel Toiletry Bag In Camo Polyester. 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.Clear Waterproof 0.5mm PVC Toiletry Bag, which are usually round,Cosmetic Bag With Pattern Printed. The number of holes in the spinneret determines the size of the yarn,Large Toiletry 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,Makeup 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,Magnetic Bottle Tags.
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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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Eas AM Security Gate, 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,AM Detection Systems. The rope-Battery Safer Case.

Drawing tow

• 1 Newly-PC Anti-theft Safer.Commodities Anti-theft Keeper.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Retractable Muti-use Safer.Mini Self Alarm Tag.

Cutting

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

The Future

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