Polyester

Background

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

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

History

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

The Manufacturing
Process

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

Drying

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

High Resolustion Inkjet Printer

HY-UV8900 Shift Data Coding System, 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,Handheld And High Resolution Inkjet Printer. The rope-CO2 Laser Marking Machine.

Drawing tow

• 1 Newly-Desktop Fiber Laser Marking Machin.UV Laser Marking Machine.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Inkjet Printer HY-V380P.Inkjet Printer HY-V580.

Cutting

• 4 Following heat setting,Inkjet Printer HY-S600. 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 Printer.Inkjet And Laser Printer System, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Visual And Code Reading Inspection Machine Series.

The Future

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