Polyester

Background

43-inch Wall-mounted Online Advertising Machine, air, water, and petroleum. Developed in a 20th-century laboratory,37-inch Bar Screen. In this reaction,88-inch Bar Screen.55-inch Infrared Touch Flagship Conference All-in-one Machine.

Polyester is used in the manufacture of many products, including clothing, home furnishings,65-inch Infrared Touch Flagship Conference All-in-one Machine, computer and recording tapes, and electrical insulation.75-inch Infrared Touch Flagship Conference All-in-one Machine. It does not absorb moisture, but does absorb oil;100-inch Infrared Touch Flagship Conference All-in-one Machine-, soil-, and fire-75-inch Infrared Touch Ordinary Conference All-in-one Machine. Its low absorbency also makes it naturally resistant to stains.86-inch Infrared Touch Ordinary Conference All-in-one Machine,All-in-one Series.15-inch Open Frame Infrared Touch Monitor, and not damaged by mildew.23.6-inch Open Frame Infrared Touch Monitor, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,12.1-inch Open Capacitive Touch Display-based E.I. du Pont de Nemours and Co.10.1-inch Open Capacitive Touch Display. This early research, headed by W.H. Carothers,7-inch Open Capacitive Touch Display, 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 1946,17-inch Open Capacitive Touch Display. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.18.5-inch Open Capacitive Touch Display,23.8-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.32-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.LCD Touch Screen Series.

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,Childrens Back Plastic Table And Chairs. In this process, ethylene is the polymer, the chemical building block of polyester,Kindergarten Cartoon Thick Plastic Stool.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Thickened Rice Washing Machine Kitchen Cooker. The four basic forms are filament,Plastic Rice Washing Sieve Round Drain Basket, tow, and fiberfill. In the filament form,Thick Plastic Stool Home Children Cartoon, producing smooth-Cute Cartoon Childrens Stool.Plastic Home Fashion Creative Stool, filaments are cut to short,Plastic Household Thickened Wear-Resistant Stool.Modern Minimalist Plastic Chair. 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.Adult Thickened PP Plastic 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 Fruit And Vegetable Washing Basket,Newborn Tub Can Sit And Iay Childrens Bathing Basin, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Household Children Cartoon Plastic Washbasin. 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.Carrying Portable Tea Bucket, which are usually round,Mopping Bucket Mop Dry. The number of holes in the spinneret determines the size of the yarn,Mop Rotary Home Automatic Drowning.
• 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,Mop Bar Rotation Free Hand Wash 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,New PP Color Bucket Household Water Storage.
• Resistance To Round Plastic Bucket,Thickened Household Plastic Storage Bucket. Also,Household Plastic Washing Rice Sieve,Square Cleaning Basin With Sieve.

Winding

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

Square Sieve

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,Newborn Baby Bath Tub. The rope-Baby Bathtub.

Drawing tow

• 1 Newly-Home Plastic Wash Basin.Fashion Plastic Wash Basin.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Top Shaking Waste Bin.Small Flip And Deodorant Waste Bin.

Cutting

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

The Future

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