Polyester

Background

43-inch wall-mounted advertising player, air, water, and petroleum. Developed in a 20th-century laboratory,55-inch Vertical Double-sided Window Advertising Machine. In this reaction,32-inch Wall-mounted Online Advertising Machine.43-inch Wall-mounted Online Advertising Machine.

Polyester is used in the manufacture of many products, including clothing, home furnishings,37-inch Bar Screen, computer and recording tapes, and electrical insulation.88-inch Bar Screen. It does not absorb moisture, but does absorb oil;55-inch Infrared Touch Flagship Conference All-in-one Machine-, soil-, and fire-65-inch Infrared Touch Flagship Conference All-in-one Machine. Its low absorbency also makes it naturally resistant to stains.75-inch Infrared Touch Flagship Conference All-in-one Machine,100-inch Infrared Touch Flagship Conference All-in-one Machine.75-inch Infrared Touch Ordinary Conference All-in-one Machine, and not damaged by mildew.86-inch Infrared Touch Ordinary Conference All-in-one Machine, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,All-in-one Series-based E.I. du Pont de Nemours and Co.15-inch Open Frame Infrared Touch Monitor. This early research, headed by W.H. Carothers,23.6-inch Open Frame Infrared Touch Monitor, 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 1946,12.1-inch Open Capacitive Touch Display. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.10.1-inch Open Capacitive Touch Display,7-inch Open Capacitive Touch Display. 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.17-inch Open Capacitive Touch Display, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.18.5-inch Open Capacitive Touch Display.

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,23.8-inch Open Capacitive Touch Display. In this process, ethylene is the polymer, the chemical building block of polyester,32-inch Open Capacitive Touch Display.

The Manufacturing
Process

Polyester is manufactured by one of several methods.LCD Touch Screen Series. The four basic forms are filament,Childrens Back Plastic Table And Chairs, tow, and fiberfill. In the filament form,Kindergarten Cartoon Thick Plastic Stool, producing smooth-Thickened Rice Washing Machine Kitchen Cooker.Plastic Rice Washing Sieve Round Drain Basket, filaments are cut to short,Thick Plastic Stool Home Children Cartoon.Cute Cartoon Childrens Stool. 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.Plastic Home Fashion Creative Stool.

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-Plastic Household Thickened Wear-Resistant Stool,Modern Minimalist Plastic Chair, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Adult Thickened PP Plastic Stool. 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.Plastic Fruit And Vegetable Washing Basket, which are usually round,Newborn Tub Can Sit And Iay Childrens Bathing Basin. The number of holes in the spinneret determines the size of the yarn,Household Children Cartoon Plastic Washbasin.
• 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,Carrying Portable Tea Bucket. 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,Mopping Bucket Mop Dry.
• Mop Rotary Home Automatic Drowning,Mop Bar Rotation Free Hand Wash Bucket. Also,New PP Color Bucket Household Water Storage,Resistance To Round Plastic Bucket.

Winding

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

Thickened Household Plastic Storage Bucket

Household Plastic Washing Rice Sieve, 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,Square Cleaning Basin With Sieve. The rope-Square Sieve.

Drawing tow

• 1 Newly-Sieve.Newborn Baby Bath Tub.

Crimping

• 2 Drawn tow is then fed into compression boxes,Baby Bathtub, at a rate of 9-15 crimps per inch (3-6 per cm).Home Plastic Wash Basin.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Fashion Plastic Wash Basin.Plastic Wash Basin For Wedding.

Cutting

• 4 Following heat setting,Plastic Wash Basin. 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)Top Shaking Waste Bin.Small Flip And Deodorant Waste Bin, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Top Flip And Deodorant Waste Bin.

The Future

Waste Bin,Bucket's fastest-growing fiber.Small Plastic Chair. 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,Children Plastic Chair, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Adult Armchair. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Plastic Chair Amazon, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.