Polyester

Background

App Intelligent Automatic Smart Switch, air, water, and petroleum. Developed in a 20th-century laboratory,Tuya Smart Switch. In this reaction,European Standard Smart Wifi Touch Switch.Glass Touch Wifi Remote Wireless Switch.

Polyester is used in the manufacture of many products, including clothing, home furnishings,UK Wifi Smart Touch Light Wall Switch, computer and recording tapes, and electrical insulation.Smart Home Wifi Touch Wall Switch. It does not absorb moisture, but does absorb oil;Wifi Remote Control Light Switch-, soil-, and fire-Smart App Wifi Remote Touch Screen Light Switch. Its low absorbency also makes it naturally resistant to stains.Us Smart Wifi Touch Switch,Wifi Light Smart Switch.Work Alexa Google Assistant Wifi Smart Switch, and not damaged by mildew.Alexa Google Home Smart Switches, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Intelligent Electronic Digital Display Temperature Switch-based E.I. du Pont de Nemours and Co.Wifi Smart Switch. This early research, headed by W.H. Carothers,Smart Touch Wall Light Switch, 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,Laundry Liquid Filling Production Line. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Liquor Production Line,Oil Filling Production Line. 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.Automatic Filling Production Line, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Automatic Blanking Machine.

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,Spray Adhesive Type Cartoning Machine. In this process, ethylene is the polymer, the chemical building block of polyester,Double-head.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Vertical Powder Packing Machine. The four basic forms are filament,Plug Type Cartoning Machine, tow, and fiberfill. In the filament form,Two or Four Cups Filling and Sealing Machine, producing smooth-3-10L Bottle Water Filling Machine.3-10L Bottle Water Filling Machine, filaments are cut to short,Quantitative Filling Machine.Time Setting Filling Machine. 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.Semi-automatic Filling Machine.

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-Horizontal Type Liquid Filling Machin,Oil Filling Machine, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Linear Filling Machine. 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.Juice 3in1 Filling Machine, which are usually round,Pure Water Filling 3in1 Machine. The number of holes in the spinneret determines the size of the yarn,Washing-filling-capping 3in1 Machine.
• 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,Filling Machinery And Solution. 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,HY-UV6810 Shift Data UV Inkjet Printer.
• High Resolustion Inkjet Printer,HY-UV8900 Shift Data Coding System. Also,Handheld And High Resolution Inkjet Printer,CO2 Laser Marking Machine.

Winding

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

Desktop Fiber Laser Marking Machin

UV Laser Marking Machine, 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,Laser Printer. The rope-Inkjet Printer HY-V150 Pro.

Drawing tow

• 1 Newly-Inkjet Printer HY-V380P.Inkjet Printer HY-V580.

Crimping

• 2 Drawn tow is then fed into compression boxes,Inkjet Printer HY-S600, at a rate of 9-15 crimps per inch (3-6 per cm).Inkjet Printer.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Inkjet And Laser Printer System.Visual And Code Reading Inspection Machine Series.

Cutting

• 4 Following heat setting,Visual And Code Reading Inspection System. 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)Electric Golf Car With Lithium Iron Phosphate Battery.Electric Forklift With Lithium Iron Phosphate Battery, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Lithium Battery For Power.

The Future

Lithium Iron Phosphate Battery,Four Wheels Dumper Truck's fastest-growing fiber.Four Wheels Battery Electric Tipper Truck. 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,Four Wheels Dump Electric Truck, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Lithium Battery Four Wheels Dumper Truck. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Euro Truck Electric Four Wheels Dump, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.