Polyester

Background

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

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

History

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

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,Smooth Structured Tote. In this process, ethylene is the polymer, the chemical building block of polyester,Ladies Quilted Tote.

The Manufacturing
Process

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

Drying

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

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-end Tenoning Machine 6 Spindles

Four-side Moulder , 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-Double-side High Speed And Efficiency Planer Qmb2018 Alf.

Drawing tow

• 1 Newly-Single-side Wood Working Planer（Heavy）.Multi-blade Rip Saw.

Crimping

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

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Automatic Single-chip Vertical Saw.CNC Machine With Automatic Tool Change.

Cutting

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

The Future

Multi-row Drill,Dring Center's fastest-growing fiber.Manual Edge Banding Machine. 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,Pre-milling Edge Banding Machine With Tracking, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Oxybenzenesulfonate Sodium. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Eco Friendly Refrigerant Gas R508, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.