Polyester

Background

TPH PPF, air, water, and petroleum. Developed in a 20th-century laboratory,Transparent TPU PPF Car Paint Protection Film. In this reaction,Self-Healing TPU Polyurethane PPF Car Wrap Film.TPU PPF.

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

History

In 1926,Matte TPU Film-based E.I. du Pont de Nemours and Co.Foggy Plastic TPU Film. This early research, headed by W.H. Carothers,Printable TPU 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,Eco-Friendly Embossed Vinyl Film Sheet. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Embossed Matte Soft PVC Film,Embossed Color Flexible PVC 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-Yellow Embossed Soft Vinyl Film, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Embossed 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,Color Transparent Soft Vinyl Film Roll. In this process, ethylene is the polymer, the chemical building block of polyester,Fluorescent Color Translucent Soft PVC Film.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Lamination Color Transparent Soft Vinyl Film. The four basic forms are filament,Lamination Plastic Soft PVC Sheet, tow, and fiberfill. In the filament form,Waterproof Flexible Plastic PVC Film, producing smooth-Matte Normal Clear Translucent Soft Vinyl Film.Non-Toxic Transparent Flexible PVC Film, filaments are cut to short,0.05mm Normal Clear Transparent Flexible PVC Film.Normal Clear Soft PVC Film Vinyl Sheet. 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.Normal Clear 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-Flame Retardant Flexible Vinyl Film,Eco-Friendly Crystal Clear Soft PVC Film, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,High Glossy Super Clear Transparent Soft Plastic 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.Antistatic Super Clear Soft PVC Film, which are usually round,Super Clear PVC Film. The number of holes in the spinneret determines the size of the yarn,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,DC Surge Protective Device. 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,Solar Photovoltaic Cleaning Brush.
• Rocker Switch,Pedal Switch. Also,Wall Switch,Electrical 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.

Solar Photovoltaic DC Combiner Box

Solar Distribution Junction Boxes, 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,PV Array String DC Combiner Box. The rope-Solar Ip65 Waterproof DC Combiner Box.

Drawing tow

• 1 Newly-DC Combiner Box.Home Wifi Digital Lock.

Crimping

• 2 Drawn tow is then fed into compression boxes,Remote Control Tuya Smart Door Lock, at a rate of 9-15 crimps per inch (3-6 per cm).Waterproof Wifi App Access Control Reader Door Lock.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Home Electronic Electric Tuya App Wifi Smart Lock.Wireless Security Automatic Door Time Lock.

Cutting

• 4 Following heat setting,Electronic Fingerprint Digital Smart Lock Door. 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)Wifi App Control Blue Tooth Cabinet Lock.Smart Wifi Tuya App Access, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Smart Lock.

The Future

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