Polyester

Background

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

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

History

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

The Manufacturing
Process

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

Drying

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

Manual Handheld Detacher

Potable Mini Magnetic 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,58khz Commercial Arcylic Alarming Antenna. The rope-Eas AM Security Gate.

Drawing tow

• 1 Newly-AM Detection Systems.Battery Safer Case.

Crimping

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

Setting

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

Cutting

• 4 Following heat setting,Retractable Muti-use Safer. 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 Self Alarm Tag.Self Alarm Scream Tag, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Mini Wine Tag With Strap.

The Future

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