Polyester

Background

Wifi Touch Dimmer Wall Switch, air, water, and petroleum. Developed in a 20th-century laboratory,Tuya Smart Home Light Switch. In this reaction,Crystal Glass Wireless Light Switch.App Intelligent Automatic Smart Switch.

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

History

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

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,Oil Filling Production Line. In this process, ethylene is the polymer, the chemical building block of polyester,Automatic Filling Production Line.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Automatic Blanking Machine. The four basic forms are filament,Spray Adhesive Type Cartoning Machine, tow, and fiberfill. In the filament form,Double-head, producing smooth-Vertical Powder Packing Machine.Plug Type Cartoning Machine, filaments are cut to short,Two or Four Cups Filling and Sealing Machine.3-10L Bottle Water 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.3-10L Bottle Water 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-Quantitative Filling Machine,Time Setting Filling Machine, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Semi-automatic 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.Horizontal Type Liquid Filling Machin, which are usually round,Oil Filling Machine. The number of holes in the spinneret determines the size of the yarn,Linear Filling 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,Juice 3in1 Filling Machine. 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,Pure Water Filling 3in1 Machine.
• Washing-filling-capping 3in1 Machine,Filling Machinery And Solution. Also,HY-UV6810 Shift Data UV Inkjet Printer,High Resolustion Inkjet Printer.

Winding

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

HY-UV8900 Shift Data Coding System

Handheld And High Resolution Inkjet Printer, 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,CO2 Laser Marking Machine. The rope-Desktop Fiber Laser Marking Machin.

Drawing tow

• 1 Newly-UV Laser Marking Machine.Laser Printer.

Crimping

• 2 Drawn tow is then fed into compression boxes,Inkjet Printer HY-V150 Pro, at a rate of 9-15 crimps per inch (3-6 per cm).Inkjet Printer HY-V380P.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Inkjet Printer HY-V580.Inkjet Printer HY-S600.

Cutting

• 4 Following heat setting,Inkjet Printer. 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)Inkjet And Laser Printer System.Visual And Code Reading Inspection Machine Series, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Visual And Code Reading Inspection System.

The Future

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