Textiles : history, properties and performance and applications

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Each year the weevil causes around two hundred million dollars of damage to the cotton crop in the US alone. So cotton is treated with insecticides, often by airplanes. Cotton was once harvested by hand, often by slave labor or tenant farmers.

As recently as , over a fourth of the U. Today, harvesting cotton is highly mechanized. Harvesting machines called strippers and pickers efficiently remove the cotton while leaving the plants undisturbed.

Published: 15th Dec 2015

Spindle harvester, also called a picker, has drums with spindles that pull the cotton from the boll in one or two rows at a time. Even a one-row mechanical picker can do the work formerly done by 40 hand pickers. In stripper harvesting, the stripper moves along rows of plants, passing them between revolving rollers or brushes that pull off the cotton. Strippers also pull twigs and leaves with the cotton.

Description:

Cotton gins separate the fibers, called lint, from the seeds. After ginning, the cotton goes to the bale press that packs it into pound bales about the size of a large refrigerator. Cotton buyers judge cotton on the basis of samples cut from the bales. The classes pull a sample. They discard most of the cotton until just a pinch of well-aligned fibers remains.

They measure the length of the fibers, referred to as staple fibers.

Synthetic fibers can be designed for numerous end uses

Longer staple fibers are higher-grade cotton and are sold at higher prices. Long staples range from 1. The fibers are sent to a textile mill where carding machines turn the fibers into cotton yarn.

The yarns are woven into cloth that is comfortable and easy to wash but does wrinkle easily. Cotton is prized for its comfort, easy care, and affordability and is ideal for clothing, bedding, towels, and furnishings.

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Finishing (textiles)

These nonwovens are equipped with a special adhesive layer that is activated during the milling process. At the same time, the air permeability of our nonwovens increases the performance of the vacuum table. Thanks to these properties, the workpiece can be optimally fixed to and removed from the table during the milling process. In this way, these innovative milling underlays increase efficiency and improve process reliability. Please contact our experts for milling underlays.

Extremely durable and versatile: nonwovens for roller covers Roller covers are a central part of many production processes. In the steel and automotive industries, they clean sheet steels, for example, or distribute anti-corrosion and deep-draw oils extremely evenly. In textile finishing, they help to squeeze out excess liquids. Freudenberg Performance Materials develops nonwovens for roller covers that are suitable for these many diverse applications, can withstand extraordinary mechanical requirements and enable high line speeds.

Please contact our experts for roller covers. Freudenberg PVD filter jackets provide high water permeability underground and designable strength for different working areas and is an environmentally friendly product which is made from polyester and no additional bonding chemical is used during the manufacturing process. They also shorten the settlement time. Please contact our experts for vertical drain filter jackets. High-tech coating substrates for economical processing By combining different polymers, fiber cross-sections and bonding technologies, we create a special fine filament technology.

This enables us to manufacture highly technical substrates with customized product features for coating, laminating and concealing applications. These substrates are also particularly suitable as components for the manufacture of multi-layer products.

They are resistant to chemicals, offer high abrasion resistance and can be universally used and economically processed. Please contact our experts for coating substrates. Precision under the most varied conditions: Surfacing veils for fiber-reinforced plastics Fiber-reinforced plastics are used in many different industries, such as mechanical and marine engineering, automotive, wind power or construction.

Products made from these materials need to be equipped with surfacing veils to provide abrasion resistance, corrosion resistance, smooth surfaces and mechanical strength. Freudenberg Performance Materials offers high-tech nonwovens for these purposes, that can cope with these challenges.

Nanomaterials and their applications in textiles—standards

Applications range from anti-corrosion coatings in piping and tank construction and smooth, UV resistant surfaces for facade panels through to special applications e. Setting standards in safety: adsorptive layers for protective suits People who are exposed in their everyday work to chemical, biological, radiological or nuclear CBRN substances need clothing with an extremely high protective function.

For this application area, Freudenberg Performance Materials has developed special materials that adsorb extremely noxious substances and toxins. The duration of protection can be adapted to individual requirements and can last for hours, days or even weeks. At the same time, these materials are durable and washable.

Technical Textiles

Because the products meet international standards, they are ideal for the worldwide manufacturing of highly specialized protective clothing used by firefighters, military and police forces, in industrial applications and much more. Please contact our experts for adsorptive layers for protective suits. The smooth road to success: high-tech solutions for polishing nonwovens Through polishing, a vast array of different surfaces glass, metal, polycarbonate, concrete, wood, ceramic, etc.

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