Polyester

Background

Mens PU Mix Messenger, air, water, and petroleum. Developed in a 20th-century laboratory,Mens Messenger Bags. In this reaction,Mens Bags.Womens Weekender Bags.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Rainbow Trim Bum Bag, computer and recording tapes, and electrical insulation.Set of Four Holiday. It does not absorb moisture, but does absorb oil;Beauty Case Bags-, soil-, and fire-Set Of Four Make Up Bags. Its low absorbency also makes it naturally resistant to stains.Make Up Bags,Allover Printed Nylon Shopper.Woven Panel Camera Bag, and not damaged by mildew.Smooth Structured Tote, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Ladies Quilted Tote-based E.I. du Pont de Nemours and Co.Faux Fur Midi Tote. This early research, headed by W.H. Carothers,Padded Nylon Tote With Front Pocket, 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,Tote Bags. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Quilted Nylon Backpack,Casual Nylon Backpack. 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 Duffle Cross Body, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Structured Formal Cross Body.

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,Quilted Boxy Cross Body. In this process, ethylene is the polymer, the chemical building block of polyester,Ladies Monogram Hobo.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Ladies Twist Handle Medium Hobo. The four basic forms are filament,Work Bags, tow, and fiberfill. In the filament form,Womens Bags, producing smooth-Belt Sander.Plate-Type Cutting Center, filaments are cut to short,Hot-press Machine.Hydraulic Shearing Machine. 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.Three Wide Belts Sanding Machine.

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-Floating Primer Sander,NC Tenoning Machine, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Cnc Double Side Tenon Machine Computer. 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.CNC Double-end Tenoning Machine 6 Spindles, which are usually round,Four-side Moulder . The number of holes in the spinneret determines the size of the yarn,Four-side Moulder .
• 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,Double-side High Speed And Efficiency Planer Qmb2018 Alf. 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,Single-side Wood Working Planer（Heavy）.
• Multi-blade Rip Saw,Automatic Up-down Multi-blades Rip Saw. Also,Edging Saw Bottom,Automatic Single-chip Vertical Saw.

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 Machine With Automatic Tool Change

Five-axis Machining Center, 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,Machining Center. The rope-Three-row Drill.

Drawing tow

• 1 Newly-Multi-row Drill.Multi-row Drill.

Crimping

• 2 Drawn tow is then fed into compression boxes,Dring Center, at a rate of 9-15 crimps per inch (3-6 per cm).Manual Edge Banding Machine.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Pre-milling Edge Banding Machine With Tracking.Oxybenzenesulfonate Sodium.

Cutting

• 4 Following heat setting,Eco Friendly Refrigerant Gas R508. 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)99.9% Purity Refrigerant Gas R508b.Refrigerant Gas R23, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Mixed Refrigerant Gas R507.

The Future

99.9% Pure Gas Refrigerant Gas R507,99.9% pure Gas Refrigerant gas r507's fastest-growing fiber.R22 Replacement Refrigerant Gas R507. 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,Refrigerant Gas R507 With High Purity, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Mixed Refrigerant Gas R410a. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.99.9% Purity R410a Refrigerant Gas To Replace R22 For Sale, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.