Polyester

Background

Skylight Film PPF, air, water, and petroleum. Developed in a 20th-century laboratory,Transparent TPH PPF Car Paint Protection Film. In this reaction,PPF Carbon Fiber Paint Protection Film.TPH PPF.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Transparent TPU PPF Car Paint Protection Film, computer and recording tapes, and electrical insulation.Self-Healing TPU Polyurethane PPF Car Wrap Film. It does not absorb moisture, but does absorb oil;TPU PPF-, soil-, and fire-Self Adhesive Marble Texture Laminated PVC Decorative Vinyl Film. Its low absorbency also makes it naturally resistant to stains.Self Adhesive Wood Grain Laminated PVC Decorative Vinyl Film,Disposable Quarantine Clothing CPE Film.Embossed CPE Film, and not damaged by mildew.CPE Film, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Anti-Fog PET Film Sheet for Protective Mask Face Shield-based E.I. du Pont de Nemours and Co.Super Clear Transparent PET Film Sheet. This early research, headed by W.H. Carothers,Transparent PET 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,Matte TPU Film. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Foggy Plastic TPU Film,Printable TPU 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.Eco-Friendly Embossed Vinyl Film Sheet, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Embossed Matte Soft PVC Film.

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,Embossed Color Flexible PVC Film. In this process, ethylene is the polymer, the chemical building block of polyester,Anti-Yellow Embossed Soft Vinyl Film.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Embossed PVC Film. The four basic forms are filament,Color Transparent Soft Vinyl Film Roll, tow, and fiberfill. In the filament form,Fluorescent Color Translucent Soft PVC Film, producing smooth-Lamination Color Transparent Soft Vinyl Film.Lamination Plastic Soft PVC Sheet, filaments are cut to short,Waterproof Flexible Plastic PVC Film.Matte Normal Clear Translucent Soft Vinyl 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.Non-Toxic Transparent Flexible PVC Film.

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-0.05mm Normal Clear Transparent Flexible PVC Film,Normal Clear Soft PVC Film Vinyl Sheet, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Normal Clear PVC Film. 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.Flame Retardant Flexible Vinyl Film, which are usually round,Eco-Friendly Crystal Clear Soft PVC Film. The number of holes in the spinneret determines the size of the yarn,High Glossy Super Clear Transparent Soft Plastic 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,Antistatic Super Clear Soft 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,Super Clear PVC Film.
• PVC Film,DC Surge Protective Device. Also,Solar Photovoltaic Cleaning Brush,Rocker Switch.

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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Wall Switch, 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,Electrical Switch. The rope-Solar Photovoltaic DC Combiner Box.

Drawing tow

• 1 Newly-Solar Distribution Junction Boxes.PV Array String DC Combiner Box.

Crimping

• 2 Drawn tow is then fed into compression boxes,Solar Ip65 Waterproof DC Combiner Box, at a rate of 9-15 crimps per inch (3-6 per cm).DC Combiner Box.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Home Wifi Digital Lock.Remote Control Tuya Smart Door Lock.

Cutting

• 4 Following heat setting,Waterproof Wifi App Access Control Reader Door Lock. 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)Home Electronic Electric Tuya App Wifi Smart Lock.Wireless Security Automatic Door Time Lock, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Electronic Fingerprint Digital Smart Lock Door.

The Future

Wifi App Control Blue Tooth Cabinet Lock,Smart Wifi Tuya App Access's fastest-growing fiber.Smart 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,App Tuya Wifi Smart Circuit Breaker, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Remote Control Wifi MCB Circuit Breaker. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Tuya Wifi Circuit Breaker, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.