Polyester

Background

Pet Body Belt, air, water, and petroleum. Developed in a 20th-century laboratory,Pet Body Belt Bags. In this reaction,Touch Screen Mobile Phone Purse.Alphabet Cardholder.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Bags Accessories, computer and recording tapes, and electrical insulation.Kids Bow Sequin Metallic Backpack. It does not absorb moisture, but does absorb oil;Kids Polar Fleece Backpack-, soil-, and fire-Kids Backpack Bags. Its low absorbency also makes it naturally resistant to stains.Kids Cross Body Bags,Mens Leopard Print Bum Bag.Mens PU Mix Messenger, and not damaged by mildew.Mens Messenger Bags, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Mens Bags-based E.I. du Pont de Nemours and Co.Womens Weekender Bags. This early research, headed by W.H. Carothers,Rainbow Trim Bum Bag, 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,Set of Four Holiday. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Beauty Case Bags,Set Of Four Make Up Bags. 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.Make Up Bags, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Allover Printed Nylon Shopper.

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,Woven Panel Camera Bag. In this process, ethylene is the polymer, the chemical building block of polyester,Smooth Structured Tote.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Ladies Quilted Tote. The four basic forms are filament,Faux Fur Midi Tote, tow, and fiberfill. In the filament form,Padded Nylon Tote With Front Pocket, producing smooth-Tote Bags.Quilted Nylon Backpack, filaments are cut to short,Casual Nylon Backpack.Ladies Duffle Cross Body. 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.Structured Formal Cross Body.

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-Quilted Boxy Cross Body,Ladies Monogram Hobo, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Ladies Twist Handle Medium Hobo. 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.Work Bags, which are usually round,Womens Bags. The number of holes in the spinneret determines the size of the yarn,Belt Sander.
• 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,Plate-Type Cutting Center. 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,Hot-press Machine.
• Hydraulic Shearing Machine,Three Wide Belts Sanding Machine. Also,Floating Primer Sander,NC Tenoning Machine.

Winding

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

Cnc Double Side Tenon Machine Computer

CNC Double-end Tenoning Machine 6 Spindles, 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,Four-side Moulder . The rope-Four-side Moulder .

Drawing tow

• 1 Newly-Double-side High Speed And Efficiency Planer Qmb2018 Alf.Single-side Wood Working Planer（Heavy）.

Crimping

• 2 Drawn tow is then fed into compression boxes,Multi-blade Rip Saw, at a rate of 9-15 crimps per inch (3-6 per cm).Automatic Up-down Multi-blades Rip Saw.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Edging Saw Bottom.Automatic Single-chip Vertical Saw.

Cutting

• 4 Following heat setting,CNC Machine With Automatic Tool Change. 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)Five-axis Machining Center.Machining Center, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Three-row Drill.

The Future

Multi-row Drill,Multi-row Drill's fastest-growing fiber.Dring Center. 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,Manual Edge Banding Machine, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Pre-milling Edge Banding Machine With Tracking. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Oxybenzenesulfonate Sodium, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.