Polyester

Background

86-inch Infrared Touch Ordinary Conference All-in-one Machine, air, water, and petroleum. Developed in a 20th-century laboratory,All-in-one Series. In this reaction,15-inch Open Frame Infrared Touch Monitor.23.6-inch Open Frame Infrared Touch Monitor.

Polyester is used in the manufacture of many products, including clothing, home furnishings,12.1-inch Open Capacitive Touch Display, computer and recording tapes, and electrical insulation.10.1-inch Open Capacitive Touch Display. It does not absorb moisture, but does absorb oil;7-inch Open Capacitive Touch Display-, soil-, and fire-17-inch Open Capacitive Touch Display. Its low absorbency also makes it naturally resistant to stains.18.5-inch Open Capacitive Touch Display,23.8-inch Open Capacitive Touch Display.32-inch Open Capacitive Touch Display, and not damaged by mildew.LCD Touch Screen Series, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Childrens Back Plastic Table And Chairs-based E.I. du Pont de Nemours and Co.Kindergarten Cartoon Thick Plastic Stool. This early research, headed by W.H. Carothers,Thickened Rice Washing Machine Kitchen Cooker, 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,Plastic Rice Washing Sieve Round Drain Basket. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Thick Plastic Stool Home Children Cartoon,Cute Cartoon Childrens Stool. 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.Plastic Home Fashion Creative Stool, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Plastic Household Thickened Wear-Resistant Stool.

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,Modern Minimalist Plastic Chair. In this process, ethylene is the polymer, the chemical building block of polyester,Adult Thickened PP Plastic Stool.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Plastic Fruit And Vegetable Washing Basket. The four basic forms are filament,Newborn Tub Can Sit And Iay Childrens Bathing Basin, tow, and fiberfill. In the filament form,Household Children Cartoon Plastic Washbasin, producing smooth-Carrying Portable Tea Bucket.Mopping Bucket Mop Dry, filaments are cut to short,Mop Rotary Home Automatic Drowning.Mop Bar Rotation Free Hand Wash Bucket. 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.New PP Color Bucket Household Water Storage.

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-Resistance To Round Plastic Bucket,Thickened Household Plastic Storage Bucket, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Household Plastic Washing Rice Sieve. 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.Square Cleaning Basin With Sieve, which are usually round,Square Sieve. The number of holes in the spinneret determines the size of the yarn,Sieve.
• 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,Newborn Baby Bath Tub. 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,Baby Bathtub.
• Home Plastic Wash Basin,Fashion Plastic Wash Basin. Also,Plastic Wash Basin For Wedding,Plastic Wash Basin.

Winding

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

Top Shaking Waste Bin

Small Flip And Deodorant Waste Bin, 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,Top Flip And Deodorant Waste Bin. The rope-Waste Bin.

Drawing tow

• 1 Newly-Bucket.Small Plastic Chair.

Crimping

• 2 Drawn tow is then fed into compression boxes,Children Plastic Chair, at a rate of 9-15 crimps per inch (3-6 per cm).Adult Armchair.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Plastic Chair Amazon.concrete repair injection.

Cutting

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

The Future

epoxy grouting pump,PU High Pressure Crack Injection Pump's fastest-growing fiber.pu injection 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,polyurethane foam injection packer, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,steel injection packer. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.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.