Polyester

Background

7-inch Open Capacitive Touch Display, air, water, and petroleum. Developed in a 20th-century laboratory,17-inch Open Capacitive Touch Display. In this reaction,18.5-inch Open Capacitive Touch Display.23.8-inch Open Capacitive Touch Display.

Polyester is used in the manufacture of many products, including clothing, home furnishings,32-inch Open Capacitive Touch Display, computer and recording tapes, and electrical insulation.LCD Touch Screen Series. It does not absorb moisture, but does absorb oil;Childrens Back Plastic Table And Chairs-, soil-, and fire-Kindergarten Cartoon Thick Plastic Stool. Its low absorbency also makes it naturally resistant to stains.Thickened Rice Washing Machine Kitchen Cooker,Plastic Rice Washing Sieve Round Drain Basket.Thick Plastic Stool Home Children Cartoon, and not damaged by mildew.Cute Cartoon Childrens Stool, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Plastic Home Fashion Creative Stool-based E.I. du Pont de Nemours and Co.Plastic Household Thickened Wear-Resistant Stool. This early research, headed by W.H. Carothers,Modern Minimalist Plastic Chair, 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,Adult Thickened PP Plastic Stool. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Plastic Fruit And Vegetable Washing Basket,Newborn Tub Can Sit And Iay Childrens Bathing Basin. 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.Household Children Cartoon Plastic Washbasin, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Carrying Portable Tea Bucket.

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,Mopping Bucket Mop Dry. In this process, ethylene is the polymer, the chemical building block of polyester,Mop Rotary Home Automatic Drowning.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Mop Bar Rotation Free Hand Wash Bucket. The four basic forms are filament,New PP Color Bucket Household Water Storage, tow, and fiberfill. In the filament form,Resistance To Round Plastic Bucket, producing smooth-Thickened Household Plastic Storage Bucket.Household Plastic Washing Rice Sieve, filaments are cut to short,Square Cleaning Basin With Sieve.Square Sieve. 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.Sieve.

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-Newborn Baby Bath Tub,Baby Bathtub, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Home Plastic Wash Basin. 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.Fashion Plastic Wash Basin, which are usually round,Plastic Wash Basin For Wedding. The number of holes in the spinneret determines the size of the yarn,Plastic Wash Basin.
• 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,Top Shaking Waste Bin. 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,Small Flip And Deodorant Waste Bin.
• Top Flip And Deodorant Waste Bin,Waste Bin. Also,Bucket,Small Plastic Chair.

Winding

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

Children Plastic Chair

Adult Armchair, 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,Plastic Chair Amazon. The rope-concrete repair injection.

Drawing tow

• 1 Newly-polyurethane foam injection packer.PU foam injection packer.

Crimping

• 2 Drawn tow is then fed into compression boxes,polyurethane foam injection packer, at a rate of 9-15 crimps per inch (3-6 per cm).polyurethane injection pump.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)epoxy grouting pump.PU High Pressure Crack Injection Pump.

Cutting

• 4 Following heat setting,pu injection packer. 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)polyurethane foam injection packer.steel injection packer, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Injection Packer.

The Future

surface ports,concrete cement crack repair packer's fastest-growing fiber.surface packer. 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,electric spray gun, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,acrylate grouting pump. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.surface ports, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.