Polyester

Background

Color Transparent Soft Vinyl Film Roll, air, water, and petroleum. Developed in a 20th-century laboratory,Fluorescent Color Translucent Soft PVC Film. In this reaction,Lamination Color Transparent Soft Vinyl Film.Lamination Plastic Soft PVC Sheet.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Waterproof Flexible Plastic PVC Film, computer and recording tapes, and electrical insulation.Matte Normal Clear Translucent Soft Vinyl Film. It does not absorb moisture, but does absorb oil;Non-Toxic Transparent Flexible PVC Film-, soil-, and fire-0.05mm Normal Clear Transparent Flexible PVC Film. Its low absorbency also makes it naturally resistant to stains.Normal Clear Soft PVC Film Vinyl Sheet,Normal Clear PVC Film.Flame Retardant Flexible Vinyl Film, and not damaged by mildew.Eco-Friendly Crystal Clear Soft PVC Film, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,High Glossy Super Clear Transparent Soft Plastic PVC Film-based E.I. du Pont de Nemours and Co.Antistatic Super Clear Soft PVC Film. This early research, headed by W.H. Carothers,Super Clear PVC 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,PVC Film. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.DC Surge Protective Device,Solar Photovoltaic Cleaning Brush. 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.Rocker Switch, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Pedal Switch.

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,Wall Switch. In this process, ethylene is the polymer, the chemical building block of polyester,Electrical Switch.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Solar Photovoltaic DC Combiner Box. The four basic forms are filament,Solar Distribution Junction Boxes, tow, and fiberfill. In the filament form,PV Array String DC Combiner Box, producing smooth-Solar Ip65 Waterproof DC Combiner Box.DC Combiner Box, filaments are cut to short,Home Wifi Digital Lock.Remote Control Tuya Smart Door Lock. 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.Waterproof Wifi App Access Control Reader Door Lock.

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-Home Electronic Electric Tuya App Wifi Smart Lock,Wireless Security Automatic Door Time Lock, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Electronic Fingerprint Digital Smart Lock Door. 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.Wifi App Control Blue Tooth Cabinet Lock, which are usually round,Smart Wifi Tuya App Access. The number of holes in the spinneret determines the size of the yarn,Smart Lock.
• 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,App Tuya Wifi Smart Circuit Breaker. 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 Wifi MCB Circuit Breaker.
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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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USB Wireless Tuya Smart Socket, 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,Home Smart Wall Outlet Socket. The rope-Smart Socket Outlet.

Drawing tow

• 1 Newly-Wifi Touch Dimmer Wall Switch.Tuya Smart Home Light Switch.

Crimping

• 2 Drawn tow is then fed into compression boxes,Crystal Glass Wireless Light Switch, at a rate of 9-15 crimps per inch (3-6 per cm).App Intelligent Automatic Smart Switch.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Tuya Smart Switch.European Standard Smart Wifi Touch Switch.

Cutting

• 4 Following heat setting,Glass Touch Wifi Remote Wireless Switch. 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)UK Wifi Smart Touch Light Wall Switch.Smart Home Wifi Touch Wall Switch, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Wifi Remote Control Light Switch.

The Future

Smart App Wifi Remote Touch Screen Light Switch,Us Smart Wifi Touch Switch's fastest-growing fiber.Wifi Light 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,Work Alexa Google Assistant Wifi Smart Switch, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Alexa Google Home Smart Switches. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Intelligent Electronic Digital Display Temperature Switch, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.