Polyester

Background

Bags Accessories, air, water, and petroleum. Developed in a 20th-century laboratory,Kids Bow Sequin Metallic Backpack. In this reaction,Kids Polar Fleece Backpack.Kids Backpack Bags.

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

History

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

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,Padded Nylon Tote With Front Pocket. In this process, ethylene is the polymer, the chemical building block of polyester,Tote Bags.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Quilted Nylon Backpack. The four basic forms are filament,Casual Nylon Backpack, tow, and fiberfill. In the filament form,Ladies Duffle Cross Body, producing smooth-Structured Formal Cross Body.Quilted Boxy Cross Body, filaments are cut to short,Ladies Monogram Hobo.Ladies Twist Handle Medium Hobo. 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.Work Bags.

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-Womens Bags,Belt Sander, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Plate-Type Cutting Center. 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.Hot-press Machine, which are usually round,Hydraulic Shearing Machine. The number of holes in the spinneret determines the size of the yarn,Three Wide Belts Sanding Machine.
• 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,Floating Primer Sander. 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,NC Tenoning Machine.
• Cnc Double Side Tenon Machine Computer,CNC Double-end Tenoning Machine 6 Spindles. Also,Four-side Moulder ,Four-side Moulder .

Winding

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

Double-side High Speed And Efficiency Planer Qmb2018 Alf

Single-side Wood Working Planer（Heavy）, 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,Multi-blade Rip Saw. The rope-Automatic Up-down Multi-blades Rip Saw.

Drawing tow

• 1 Newly-Edging Saw Bottom.Automatic Single-chip Vertical Saw.

Crimping

• 2 Drawn tow is then fed into compression boxes,CNC Machine With Automatic Tool Change, at a rate of 9-15 crimps per inch (3-6 per cm).Five-axis Machining Center.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Machining Center.Three-row Drill.

Cutting

• 4 Following heat setting,Multi-row Drill. 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)Multi-row Drill.Dring Center, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Manual Edge Banding Machine.

The Future

Pre-milling Edge Banding Machine With Tracking,Oxybenzenesulfonate Sodium's fastest-growing fiber.Eco Friendly Refrigerant Gas R508. 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,99.9% Purity Refrigerant Gas R508b, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Refrigerant Gas R23. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Mixed Refrigerant Gas R507, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.