Polyester

Background

75-inch Infrared Touch Flagship Conference All-in-one Machine, air, water, and petroleum. Developed in a 20th-century laboratory,100-inch Infrared Touch Flagship Conference All-in-one Machine. In this reaction,75-inch Infrared Touch Ordinary Conference All-in-one Machine.86-inch Infrared Touch Ordinary Conference All-in-one Machine.

Polyester is used in the manufacture of many products, including clothing, home furnishings,All-in-one Series, computer and recording tapes, and electrical insulation.15-inch Open Frame Infrared Touch Monitor. It does not absorb moisture, but does absorb oil;23.6-inch Open Frame Infrared Touch Monitor-, soil-, and fire-12.1-inch Open Capacitive Touch Display. Its low absorbency also makes it naturally resistant to stains.10.1-inch Open Capacitive Touch Display,7-inch Open Capacitive Touch Display.17-inch Open Capacitive Touch Display, and not damaged by mildew.18.5-inch Open Capacitive Touch Display, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,23.8-inch Open Capacitive Touch Display-based E.I. du Pont de Nemours and Co.32-inch Open Capacitive Touch Display. This early research, headed by W.H. Carothers,LCD Touch Screen Series, 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,Childrens Back Plastic Table And Chairs. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Kindergarten Cartoon Thick Plastic Stool,Thickened Rice Washing Machine Kitchen Cooker. 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 Rice Washing Sieve Round Drain Basket, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Thick Plastic Stool Home Children Cartoon.

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,Cute Cartoon Childrens Stool. In this process, ethylene is the polymer, the chemical building block of polyester,Plastic Home Fashion Creative Stool.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Plastic Household Thickened Wear-Resistant Stool. The four basic forms are filament,Modern Minimalist Plastic Chair, tow, and fiberfill. In the filament form,Adult Thickened PP Plastic Stool, producing smooth-Plastic Fruit And Vegetable Washing Basket.Newborn Tub Can Sit And Iay Childrens Bathing Basin, filaments are cut to short,Household Children Cartoon Plastic Washbasin.Carrying Portable Tea 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.Mopping Bucket Mop Dry.

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-Mop Rotary Home Automatic Drowning,Mop Bar Rotation Free Hand Wash Bucket, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,New PP Color Bucket Household Water Storage. 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.Resistance To Round Plastic Bucket, which are usually round,Thickened Household Plastic Storage Bucket. The number of holes in the spinneret determines the size of the yarn,Household Plastic Washing Rice 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,Square Cleaning Basin With Sieve. 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,Square Sieve.
• Sieve,Newborn Baby Bath Tub. Also,Baby Bathtub,Home 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.

Fashion Plastic Wash Basin

Plastic Wash Basin For Wedding, 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,Plastic Wash Basin. The rope-Top Shaking Waste Bin.

Drawing tow

• 1 Newly-Small Flip And Deodorant Waste Bin.Top Flip And Deodorant Waste Bin.

Crimping

• 2 Drawn tow is then fed into compression boxes,Waste Bin, at a rate of 9-15 crimps per inch (3-6 per cm).Bucket.

Setting

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

Cutting

• 4 Following heat setting,Adult Armchair. 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 Chair Amazon.concrete repair injection, such ascarpet,polyester filaments are cut into 6 inch (15 cm)polyurethane foam injection packer.

The Future

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