Polyester

Background

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

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

History

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

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

The Manufacturing
Process

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

Drying

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

Winding

• 8 After the polyester yarn is drawn, it is wound on large bobbins or flat-wound packages, ready to be woven into material.

Rocker Switch

Pedal 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,Wall Switch. The rope-Electrical Switch.

Drawing tow

• 1 Newly-Solar Photovoltaic DC Combiner Box.Solar Distribution Junction Boxes.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)DC Combiner Box.Home Wifi Digital Lock.

Cutting

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

The Future

Electronic Fingerprint Digital Smart Lock Door,Wifi App Control Blue Tooth Cabinet Lock's fastest-growing fiber.Smart Wifi Tuya App Access. 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,Smart Lock, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,App Tuya Wifi Smart Circuit Breaker. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Remote Control Wifi MCB 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.