Polyester

Background

Kammprofile Gasket with Integral Outer Ring, air, water, and petroleum. Developed in a 20th-century laboratory,Corrugated Jacketed Gasket. In this reaction,Corrugated Graphite Gasket.Corrugated Gasket.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Corrugated Metal Gaskets, computer and recording tapes, and electrical insulation.Standard Spiral Wound Gasket. It does not absorb moisture, but does absorb oil;Inner & Outer Ring Of SWG-, soil-, and fire-Spiral Wound Gaskets. Its low absorbency also makes it naturally resistant to stains.55-inch multimedia advertising player,43-inch wall-mounted advertising player.55-inch Vertical Double-sided Window Advertising Machine, and not damaged by mildew.32-inch Wall-mounted Online Advertising Machine, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,43-inch Wall-mounted Online Advertising Machine-based E.I. du Pont de Nemours and Co.37-inch Bar Screen. This early research, headed by W.H. Carothers,88-inch Bar Screen, 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 1946,55-inch Infrared Touch Flagship Conference All-in-one Machine. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.65-inch Infrared Touch Flagship Conference All-in-one Machine,75-inch Infrared Touch Flagship Conference All-in-one Machine. 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.100-inch Infrared Touch Flagship Conference All-in-one Machine, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.75-inch Infrared Touch Ordinary Conference All-in-one 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,86-inch Infrared Touch Ordinary Conference All-in-one Machine. In this process, ethylene is the polymer, the chemical building block of polyester,All-in-one Series.

The Manufacturing
Process

Polyester is manufactured by one of several methods.15-inch Open Frame Infrared Touch Monitor. The four basic forms are filament,23.6-inch Open Frame Infrared Touch Monitor, tow, and fiberfill. In the filament form,12.1-inch Open Capacitive Touch Display, producing smooth-10.1-inch Open Capacitive Touch Display.7-inch Open Capacitive Touch Display, filaments are cut to short,17-inch Open Capacitive Touch Display.18.5-inch Open Capacitive Touch Display. 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.23.8-inch Open Capacitive Touch Display.

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-32-inch Open Capacitive Touch Display,LCD Touch Screen Series, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Childrens Back Plastic Table And Chairs. 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.Kindergarten Cartoon Thick Plastic Stool, which are usually round,Thickened Rice Washing Machine Kitchen Cooker. The number of holes in the spinneret determines the size of the yarn,Plastic Rice Washing Sieve Round Drain Basket.
• 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,Thick Plastic Stool Home Children Cartoon. 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,Cute Cartoon Childrens Stool.
• Plastic Home Fashion Creative Stool,Plastic Household Thickened Wear-Resistant Stool. Also,Modern Minimalist Plastic Chair,Adult Thickened PP Plastic Stool.

Winding

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

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Newborn Tub Can Sit And Iay Childrens Bathing Basin, 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,Household Children Cartoon Plastic Washbasin. The rope-Carrying Portable Tea Bucket.

Drawing tow

• 1 Newly-Mopping Bucket Mop Dry.Mop Rotary Home Automatic Drowning.

Crimping

• 2 Drawn tow is then fed into compression boxes,Mop Bar Rotation Free Hand Wash Bucket, at a rate of 9-15 crimps per inch (3-6 per cm).New PP Color Bucket Household Water Storage.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Resistance To Round Plastic Bucket.Thickened Household Plastic Storage Bucket.

Cutting

• 4 Following heat setting,Household Plastic Washing Rice Sieve. 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)Square Cleaning Basin With Sieve.Square Sieve, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Sieve.

The Future

Newborn Baby Bath Tub,Baby Bathtub's fastest-growing fiber.Home Plastic Wash Basin. 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,Fashion Plastic Wash Basin, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Plastic Wash Basin For Wedding. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Plastic Wash Basin, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.