Polyester

Background

Charming Printed Cosmetic Bag, air, water, and petroleum. Developed in a 20th-century laboratory,Customized cosmetic bag. In this reaction,Rectangular Cosmetic Bag.Nylon mesh pouch promotion.

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

History

In 1926,TPU makeup case-based E.I. du Pont de Nemours and Co.Women 3 Pack Cosmetic Bag Set Small Travel Toiletry Case Beauty Pouch Organizer. This early research, headed by W.H. Carothers,Bling Sequin Zippered 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,Double Layer Flannelette Cosmetic Bag With PVC Cover On Top. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Eye Catching Promotion Mesh Pouch And Small Simple Nylon Flat Bag ,Beauty Accessory Pouch. 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.Simple Foldable Make Up Brush Holder Pouch, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Makeup Pouch.

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,Hologram Shell Shape Clear Comsetic Bag. In this process, ethylene is the polymer, the chemical building block of polyester,Waterproof Travel Make Up Bag Set.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Printed Icon Nylon Mens Toiletry Bag. The four basic forms are filament,Beauty Cosmetic Makeup Bag Set, tow, and fiberfill. In the filament form,Two Colors Rectangular Cosmetic Bag, producing smooth-Multifunctional PU Makeup Cosmetic Bag.Mens Gym Or Travel Toiletry Bag In Camo Polyester, filaments are cut to short,Clear Waterproof 0.5mm PVC Toiletry Bag.Cosmetic Bag With Pattern Printed. 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.Large Toiletry 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-Makeup bag,Magnetic Bottle Tags, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,AM Deactivator. 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.Cone Super Magnet Detacher, which are usually round,Manual Handheld Detacher. The number of holes in the spinneret determines the size of the yarn,Potable Mini Magnetic Detacher.
• 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,58khz Commercial Arcylic Alarming Antenna. 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,Eas AM Security Gate.
• AM Detection Systems,Battery Safer Case. Also,PC Anti-theft Safer,Commodities Anti-theft Keeper.

Winding

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

Multi-use Anti-theft Box

AM/RF Gum Safer, 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,Retractable Muti-use Safer. The rope-Mini Self Alarm Tag.

Drawing tow

• 1 Newly-Self Alarm Scream Tag.Mini Wine Tag With Strap.

Crimping

• 2 Drawn tow is then fed into compression boxes,AM Jewelry Security Hang Tag Label, at a rate of 9-15 crimps per inch (3-6 per cm).Customized Label.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Narrow AM Anti Theft Label Barcode.Slim AM Anti Theft Label Multiple Colors.

Cutting

• 4 Following heat setting,AM Anti Theft Label. 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 Soft Labels.Big Deep Low Laboratory Refrigerator, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Laboratory Tube Freezer.

The Future

Small Deep Low Laboratory Refrigerator,Upright Deep Low Laboratory Refrigerator's fastest-growing fiber.Mini Chest Deep Low 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,Chest Deep Low Laboratory Refrigerators, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,4 Degree Display Laboratory Refrigerator. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.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.