Polyester

Background

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

Polyester is used in the manufacture of many products, including clothing, home furnishings,43-inch Wall-mounted Online Advertising Machine, computer and recording tapes, and electrical insulation.37-inch Bar Screen. It does not absorb moisture, but does absorb oil;88-inch Bar Screen-, soil-, and fire-55-inch Infrared Touch Flagship Conference All-in-one Machine. Its low absorbency also makes it naturally resistant to stains.65-inch Infrared Touch Flagship Conference All-in-one Machine,75-inch Infrared Touch Flagship Conference All-in-one Machine.100-inch Infrared Touch Flagship Conference All-in-one Machine, and not damaged by mildew.75-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 1926,86-inch Infrared Touch Ordinary Conference All-in-one Machine-based E.I. du Pont de Nemours and Co.All-in-one Series. This early research, headed by W.H. Carothers,15-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 1946,23.6-inch Open Frame Infrared Touch Monitor. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.12.1-inch Open Capacitive Touch Display,10.1-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.7-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.17-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,18.5-inch Open Capacitive Touch Display. In this process, ethylene is the polymer, the chemical building block of polyester,23.8-inch Open Capacitive Touch Display.

The Manufacturing
Process

Polyester is manufactured by one of several methods.32-inch Open Capacitive Touch Display. The four basic forms are filament,LCD Touch Screen Series, tow, and fiberfill. In the filament form,Childrens Back Plastic Table And Chairs, producing smooth-Kindergarten Cartoon Thick Plastic Stool.Thickened Rice Washing Machine Kitchen Cooker, filaments are cut to short,Plastic Rice Washing Sieve Round Drain Basket.Thick Plastic Stool Home Children Cartoon. 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.Cute Cartoon Childrens 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 Home Fashion Creative Stool,Plastic Household Thickened Wear-Resistant Stool, is extruded through a slot to form long ribbons.

Drying

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

Winding

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

Resistance To Round Plastic Bucket

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

Drawing tow

• 1 Newly-Square Sieve.Sieve.

Crimping

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

Setting

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

Cutting

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

The Future

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