Polyester

Background

Nylon mesh pouch promotion, air, water, and petroleum. Developed in a 20th-century laboratory,Velvet Makeup Pouch. In this reaction,Travel beauty pouch.Cosmetic makeup bag.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Toiletry travel bag, computer and recording tapes, and electrical insulation.Exceptional toiletry travel bag. It does not absorb moisture, but does absorb oil;Mens Toiletry Bag-, soil-, and fire-Clear Travel Bag. Its low absorbency also makes it naturally resistant to stains.PVC beauty case,TPU makeup case.Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer, and not damaged by mildew.Bling Sequin Zippered Makeup Pouch, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Double Layer Flannelette Cosmetic Bag With PVC Cover On Top-based E.I. du Pont de Nemours and Co.Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag . This early research, headed by W.H. Carothers,Beauty Accessory 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,Simple Foldable Make Up Brush Holder Pouch. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Makeup Pouch,Hologram Shell Shape Clear Comsetic 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.Waterproof Travel Make Up Bag Set, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Printed Icon Nylon 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,Beauty Cosmetic Makeup Bag Set. In this process, ethylene is the polymer, the chemical building block of polyester,Two Colors Rectangular Cosmetic Bag.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Multifunctional PU Makeup Cosmetic Bag. The four basic forms are filament,Mens Gym Or Travel Toiletry Bag In Camo Polyester, tow, and fiberfill. In the filament form,Clear Waterproof 0.5mm PVC Toiletry Bag, producing smooth-Cosmetic Bag With Pattern Printed.Large Toiletry Pouch, filaments are cut to short,Makeup bag.Magnetic Bottle Tags. 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.AM Deactivator.

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-Cone Super Magnet Detacher,Manual Handheld Detacher, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Potable Mini Magnetic Detacher. 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.58khz Commercial Arcylic Alarming Antenna, which are usually round,Eas AM Security Gate. The number of holes in the spinneret determines the size of the yarn,AM Detection Systems.
• 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,Battery Safer Case. 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,PC Anti-theft Safer.
• Commodities Anti-theft Keeper,Multi-use Anti-theft Box. Also,AM/RF Gum Safer,Retractable Muti-use Safer.

Winding

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

Mini Self Alarm Tag

Self Alarm Scream Tag, 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,Mini Wine Tag With Strap. The rope-AM Jewelry Security Hang Tag Label.

Drawing tow

• 1 Newly-Customized Label.Narrow AM Anti Theft Label Barcode.

Crimping

• 2 Drawn tow is then fed into compression boxes,Slim AM Anti Theft Label Multiple Colors, at a rate of 9-15 crimps per inch (3-6 per cm).AM Anti Theft Label.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)AM Soft Labels.Big Deep Low Laboratory Refrigerator.

Cutting

• 4 Following heat setting,Laboratory Tube Freezer. 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)Small Deep Low Laboratory Refrigerator.Upright Deep Low Laboratory Refrigerator, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Mini Chest Deep Low Laboratory Refrigerator.

The Future

Chest Deep Low Laboratory Refrigerators,4 Degree Display Laboratory Refrigerator's fastest-growing fiber.Laboratory Refrigerator. 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,Deep Cryogenic Car Freezer, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Deep Low Temp Car Freezer. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Portable Low Temp Car Freezer, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.