Polyester

Background

Cloth Tapes, air, water, and petroleum. Developed in a 20th-century laboratory,Strong Based Double Sided Tape. In this reaction,High Density Double Sided Rubber Cloth Tape.PET Tape.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Oily Double Sided Tape, computer and recording tapes, and electrical insulation.Double Sided Tape For Embroidery. It does not absorb moisture, but does absorb oil;Double Sided Tapes-, soil-, and fire-House Decoration Masking Tape. Its low absorbency also makes it naturally resistant to stains.Wig Tape,Plastic Spraying Tape.Masking Tapes, and not damaged by mildew.Printed Packing Tape, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Printing Tape-based E.I. du Pont de Nemours and Co.Grid Kraft Tape. This early research, headed by W.H. Carothers,Eco-Friendly Paper Packing Tape, 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,Self Adhesive Kraft Paper Tape. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.LOGO Tape,Sticky Lint Roller Tape. 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.Handled Sticky Roller, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Pet Stick Grip Roller Tape.

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,Sticky Roller Mop Refill. In this process, ethylene is the polymer, the chemical building block of polyester,Pet Hair Sticky Remover.

The Manufacturing
Process

Polyester is manufactured by one of several methods.FG53 SERIES IP65 LED TRI-PROOF LAMP. The four basic forms are filament,FG55 SERIES IP65 LED TRI-PROOF LAMP, tow, and fiberfill. In the filament form,FG06 SERIES IP65 LED WATERPROOF LAMP, producing smooth-FB01A SERIES IP54 LED WATERPROOF LAMP.FG11 SERIES IP65 LED WATERPROOF LAMP, filaments are cut to short,FB02 SERIES IP20 LED WATERPROOF LAMP.FE05 SERIES IP65 LED WATERPROOF LAMP. 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.FLD-A SERIES IP65 LED FLOOD LIGHT.

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-Flood Light,FE03 SERIES IP65 LED DUSTPROOF LAMP, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,FE05 SERIES IP65 LED DUSTPROOF LAMP. 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.FI81E SERIES IP65 LED DUSTPROOF LAMP, which are usually round,FI88E SERIES IP65 LED DUSTPROOF LAMP. The number of holes in the spinneret determines the size of the yarn,FI89E SERIES IP65 LED DUSTPROOF LAMP.
• 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,FG03 SEREIS IP67 LED DUSTPROOF LAMP. 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,FG04 SERIES IP65 LED DUSTPROOF LAMP.
• FG06 SERIES IP65 LED DUSTPROOF LAMP,FB01A SERIES IP54 LED DUSTPROOF LAMP. Also,FG11 SERIES IP65 LED DUSTPROOF LAMP,FB02 SERIES IP20 LED DUSTPROOF LAMP.

Winding

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

Dustproof Light

Fluorescent Tri-Proof Light, 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,FE01 SERIES IP65 LED TRI-PROOF LAMP. The rope-FE03 SERIES IP65 LED TRI-PROOF LAMP.

Drawing tow

• 1 Newly-FI81E SERIES IP65 LED TRI-PROOF LAMP.FG06 SERIES IP65 LED TRI-PROOF LAMP.

Crimping

• 2 Drawn tow is then fed into compression boxes,FB02 SERIES IP20 LED TRI-PROOF LAMP, at a rate of 9-15 crimps per inch (3-6 per cm).FI81 SERIES IP65 T8 LED TUBES FIXTURE.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)FI82 SERIES IP65 T8 LED TUBES FIXTURE.FI88 SERIES IP65 T5 / T8 LED TUBES FIXTURE.

Cutting

• 4 Following heat setting,FI89 SERIES IP65 T8 LED TUBES FIXTURE. 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)LED Tri-Proof Light.Tri-Proof Light, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Wall Mounted LED Mirror Cabinet with Two Doors.

The Future

LED Lighted Mirror Cabinet with Single Door,Plastic Cylinder LED Mirror Light Lamp's fastest-growing fiber.Stainless Square LED Mirror Light Lamp. 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,LED Mirror Light, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Oval LED Dressing Mirror. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Rectangle LED Dressing Mirror With Two Frosted Light Strips, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.