Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Cleansing Light

21.09.2005


Russian researchers have literally suggested burn to ashes thorns and other vegetative admixtures in the sheep’s fleece. It should be noted that that burning to ashes is done intricately, so that the future fiber only benefited from it –becoming solid, elastic and snow-white. The information on this development is placed in the section of promising projects on the site of the International Science and Technology Center (ISTC).

An ingenious fleece cleansing technology has been developed and patented by Russian researchers. It is based on raw stuff irradiation by bright light of power tubes. In the course of this, all vegetative admixtures – their content in the domestic raw stuff making nearly 3 percent and getting rid of them without spoiling fleece has not been successful so far – turn into ashes. Fleece itself becomes better than it previously was. This idea is so non-trivial that it is simply difficult to believe in. However, a pre-production model of the plant is already functioning in the laboratory of the Moscow State Textile University named after A.N. Kosygin. The ISTC experts considered the development so interesting that they placed the information about it in their database – in the advanced researchers section on the site: www.istc.ru.

The problem is not purely Russian, but it is typical for the countries where economy is not highly developed. As for Australian merino sheep, their life is good, if not splendid. They wear special shirts and are tendered in special pastures without thorns or agrimony. So their fleece is clean, without admixtures. The fleece of Russian sheep is all over covered with bur. It is practically impossible to comb out the burs. They have to be pulled out together with fleece, as a result nearly one tenth of the raw stuff being lost, besides the fiber being broken or the raw stuff being processed with sulphuric acid. Certainly, all vegetative admixtures are successfully removed, but the quality of raw stuff drops inevitably. It loses elasticity and a fiber made of it will never be really durable.



The method suggested by Russian researchers does not in the least spoil the raw stuff. The essence of the method is as follows. The raw stuff, i.e. the fleece preliminary washed clean off mud, sweat and grease, is illuminated by very powerful (20 kWt) lamps. But not for a long time – for fractions of a second. During this time, darker vegetative admixtures get strongly heated up – nearly up to three hundred degrees C, and literally turn into ashes. At the same time, the lighter fleece has time to get slilghtly warm – up to sixty degrees C. After that, it is sufficient to shake up the fleece – there are nor burs or grass in it any longer.

Quality improvement of fleece itself has turned out to be an exclusively interesting “by-product” of this influence the authors did not even expect. Although there is nothing supernatural about it – specialists do know that wool “likes” moderate heat. The fiber surface becomes smoother, and the fiber itself, or more precisely, its internal layer, the so-called cortical one, becomes more elastic and flexible. So, as a result the thread and products based on it become more durable and the color becomes snow-white.

However, it is also easier to dye fleece processed under a new technology. The dye keeps on better and stronger, and therefore, the fleece does not lose color and less dye gets into waste, i.e. is washed off to washwater, which is good for environment protection and saving.

The authors have been conducting investigations on the issue for more than twenty years, since 1982. It is interesting to note that they initially used lasers for irradiation and then, relatively not long ago, switched to ordinary lamps’ light. The light is certainly filtered – both off destructive effect of ultraviolet and infrared-range irradiation – as it does not matter for the light what to heat: fleece or thorns.

The scientists have solved basic research problems. They have even constructed a laboratory-scale plant jointly with specialists of the “Granat” (Garnet ) Special Design Office. Nevertheless, manufacturing technologies have not been developed yet. However, this is more of financial issue.

Sergey Komarov | alfa
Further information:
http://www.informnauka.ru

More articles from Agricultural and Forestry Science:

nachricht New data unearths pesticide peril in beehives
21.04.2017 | Cornell University

nachricht New rice fights off drought
04.04.2017 | RIKEN

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

Im Focus: Quantum-physical Model System

Computer-assisted methods aid Heidelberg physicists in reproducing experiment with ultracold atoms

Two researchers at Heidelberg University have developed a model system that enables a better understanding of the processes in a quantum-physical experiment...

Im Focus: Glacier bacteria’s contribution to carbon cycling

Glaciers might seem rather inhospitable environments. However, they are home to a diverse and vibrant microbial community. It’s becoming increasingly clear that they play a bigger role in the carbon cycle than previously thought.

A new study, now published in the journal Nature Geoscience, shows how microbial communities in melting glaciers contribute to the Earth’s carbon cycle, a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

New quantum liquid crystals may play role in future of computers

21.04.2017 | Physics and Astronomy

A promising target for kidney fibrosis

21.04.2017 | Health and Medicine

Light rays from a supernova bent by the curvature of space-time around a galaxy

21.04.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>