Polyester

Background

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

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

History

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

The Manufacturing
Process

Polyester is manufactured by one of several methods.Solar Distribution Junction Boxes. The four basic forms are filament,PV Array String DC Combiner Box, tow, and fiberfill. In the filament form,Solar Ip65 Waterproof DC Combiner Box, producing smooth-DC Combiner Box.Home Wifi Digital Lock, filaments are cut to short,Remote Control Tuya Smart Door Lock.Waterproof Wifi App Access Control Reader 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.Home Electronic Electric Tuya App Wifi Smart 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-Wireless Security Automatic Door Time Lock,Electronic Fingerprint Digital Smart Lock Door, is extruded through a slot to form long ribbons.

Drying

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

Drawing tow

• 1 Newly-Tuya Smart Home Light Switch.Crystal Glass Wireless Light Switch.

Crimping

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

Setting

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

Cutting

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

The Future

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