Polyester

Background

Transparent PET Film, air, water, and petroleum. Developed in a 20th-century laboratory,Matte TPU Film. In this reaction,Foggy Plastic TPU Film.Printable TPU Film.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Eco-Friendly Embossed Vinyl Film Sheet, computer and recording tapes, and electrical insulation.Embossed Matte Soft PVC Film. It does not absorb moisture, but does absorb oil;Embossed Color Flexible PVC Film-, soil-, and fire-Anti-Yellow Embossed Soft Vinyl Film. Its low absorbency also makes it naturally resistant to stains.Embossed PVC Film,Color Transparent Soft Vinyl Film Roll.Fluorescent Color Translucent Soft PVC Film, and not damaged by mildew.Lamination Color Transparent Soft Vinyl Film, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Lamination Plastic Soft PVC Sheet-based E.I. du Pont de Nemours and Co.Waterproof Flexible Plastic PVC Film. This early research, headed by W.H. Carothers,Matte Normal Clear Translucent Soft 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,Non-Toxic Transparent Flexible PVC Film. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.0.05mm Normal Clear Transparent Flexible PVC Film,Normal Clear Soft PVC Film Vinyl Sheet. 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.Normal Clear PVC Film, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Flame Retardant Flexible Vinyl 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,Eco-Friendly Crystal Clear Soft PVC Film. In this process, ethylene is the polymer, the chemical building block of polyester,High Glossy Super Clear Transparent Soft Plastic PVC Film.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Antistatic Super Clear Soft PVC Film. The four basic forms are filament,Super Clear PVC Film, tow, and fiberfill. In the filament form,PVC Film, producing smooth-DC Surge Protective Device.Solar Photovoltaic Cleaning Brush, filaments are cut to short,Rocker Switch.Pedal Switch. 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.Wall Switch.

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-Electrical Switch,Solar Photovoltaic DC Combiner Box, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Solar Distribution Junction Boxes. 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.PV Array String DC Combiner Box, which are usually round,Solar Ip65 Waterproof DC Combiner Box. The number of holes in the spinneret determines the size of the yarn,DC Combiner Box.
• 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,Home Wifi Digital Lock. 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,Remote Control Tuya Smart Door Lock.
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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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Smart Wifi Tuya App Access, 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,Smart Lock. The rope-App Tuya Wifi Smart Circuit Breaker.

Drawing tow

• 1 Newly-Remote Control Wifi MCB Circuit Breaker.Tuya Wifi Circuit Breaker.

Crimping

• 2 Drawn tow is then fed into compression boxes,Remote Control Smart Circuit Breaker, at a rate of 9-15 crimps per inch (3-6 per cm).Smart Circuit Breaker.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Eu Outlet Electrical Wall Smart Socket.Tuya Smart Universal Plug Wifi Socket.

Cutting

• 4 Following heat setting,USB Wireless Tuya Smart Socket. 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 Smart Wall Outlet Socket.Smart Socket Outlet, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Wifi Touch Dimmer Wall Switch.

The Future

Tuya Smart Home Light Switch,Crystal Glass Wireless Light Switch's fastest-growing fiber.App Intelligent Automatic Smart Switch. 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,Tuya Smart Switch, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,European Standard Smart Wifi Touch Switch. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Glass Touch Wifi Remote Wireless Switch, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.