Polyester

Background

Outdoor TV Enclosure, air, water, and petroleum. Developed in a 20th-century laboratory,QLED Outdoor TV 2000 Brightness. In this reaction,QLED Outdoor Waterproof TV 1500 brightness.Outdoor TVs Full Sun.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Outdoor TVs, computer and recording tapes, and electrical insulation.Skylight TPU Film PPF. It does not absorb moisture, but does absorb oil;Skylight Film PPF-, soil-, and fire-Transparent TPH PPF Car Paint Protection Film. Its low absorbency also makes it naturally resistant to stains.PPF Carbon Fiber Paint Protection Film,TPH PPF.Transparent TPU PPF Car Paint Protection Film, and not damaged by mildew.Self-Healing TPU Polyurethane PPF Car Wrap Film, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,TPU PPF-based E.I. du Pont de Nemours and Co.Self Adhesive Marble Texture Laminated PVC Decorative Vinyl Film. This early research, headed by W.H. Carothers,Self Adhesive Wood Grain Laminated PVC Decorative Vinyl Film, 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,Disposable Quarantine Clothing CPE Film. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Embossed CPE Film,CPE Film. 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.Anti-Fog PET Film Sheet for Protective Mask Face Shield, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Super Clear Transparent PET Film Sheet.

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,Transparent PET Film. In this process, ethylene is the polymer, the chemical building block of polyester,Matte TPU Film.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Foggy Plastic TPU Film. The four basic forms are filament,Printable TPU Film, tow, and fiberfill. In the filament form,Eco-Friendly Embossed Vinyl Film Sheet, producing smooth-Embossed Matte Soft PVC Film.Embossed Color Flexible PVC Film, filaments are cut to short,Anti-Yellow Embossed Soft Vinyl Film.Embossed PVC Film. 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.Color Transparent Soft Vinyl Film Roll.

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-Fluorescent Color Translucent Soft PVC Film,Lamination Color Transparent Soft Vinyl Film, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Lamination Plastic Soft PVC Sheet. 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.Waterproof Flexible Plastic PVC Film, which are usually round,Matte Normal Clear Translucent Soft Vinyl Film. The number of holes in the spinneret determines the size of the yarn,Non-Toxic Transparent Flexible PVC Film.
• 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,0.05mm Normal Clear Transparent Flexible PVC Film. 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,Normal Clear Soft PVC Film Vinyl Sheet.
• Normal Clear PVC Film,Flame Retardant Flexible Vinyl Film. Also,Eco-Friendly Crystal Clear Soft PVC Film,High Glossy Super Clear Transparent Soft Plastic PVC Film.

Winding

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

Antistatic Super Clear Soft PVC Film

Super Clear PVC Film, 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,PVC Film. The rope-DC Surge Protective Device.

Drawing tow

• 1 Newly-Solar Photovoltaic Cleaning Brush.Rocker Switch.

Crimping

• 2 Drawn tow is then fed into compression boxes,Pedal Switch, at a rate of 9-15 crimps per inch (3-6 per cm).Wall Switch.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Electrical Switch.Solar Photovoltaic DC Combiner Box.

Cutting

• 4 Following heat setting,Solar Distribution Junction Boxes. 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)PV Array String DC Combiner Box.Solar Ip65 Waterproof DC Combiner Box, such ascarpet,polyester filaments are cut into 6 inch (15 cm)DC Combiner Box.

The Future

Home Wifi Digital Lock,Remote Control Tuya Smart Door Lock's fastest-growing fiber.Waterproof Wifi App Access Control Reader Door Lock. 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,Home Electronic Electric Tuya App Wifi Smart Lock, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Wireless Security Automatic Door Time Lock. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Electronic Fingerprint Digital Smart Lock Door, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.