Polyester

Background

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

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

History

In 1926,Wifi Smart Switch-based E.I. du Pont de Nemours and Co.Smart Touch Wall Light Switch. This early research, headed by W.H. Carothers,Laundry Liquid Filling Production Line, 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,Liquor Production Line. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Oil Filling Production Line,Automatic 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 Blanking Machine, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Spray Adhesive Type Cartoning 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,Double-head. In this process, ethylene is the polymer, the chemical building block of polyester,Vertical Powder Packing Machine.

The Manufacturing
Process

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

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-Oil Filling Machine,Linear Filling Machine, is extruded through a slot to form long ribbons.

Drying

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

Winding

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

UV Laser Marking Machine

Laser 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,Inkjet Printer HY-V150 Pro. The rope-Inkjet Printer HY-V380P.

Drawing tow

• 1 Newly-Inkjet Printer HY-V580.Inkjet Printer HY-S600.

Crimping

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

Setting

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

Cutting

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

The Future

Four Wheels Dumper Truck,Four Wheels Battery Electric Tipper Truck's fastest-growing fiber.Four Wheels Dump Electric 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,Lithium Battery Four Wheels Dumper Truck, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Euro Truck Electric Four Wheels Dump. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Four Wheels Electric Dumper Truck J2-T, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.