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 Trees and climate change: Faster growth, lighter wood
14.08.2018 | Technische Universität München

nachricht Animals and fungi enhance the performance of forests
01.08.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

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: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

Im Focus: Lining up surprising behaviors of superconductor with one of the world's strongest magnets

Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur

What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

2018 Work Research Conference

25.07.2018 | Event News

 
Latest News

Staying in Shape

16.08.2018 | Life Sciences

Diving robots find Antarctic seas exhale surprising amounts of carbon dioxide in winter

16.08.2018 | Earth Sciences

Protein droplets keep neurons at the ready and immune system in balance

16.08.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>