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|"Q & A" on Titanium|
|What is titanium ?|
|Why we can see the titanium color ?|
|Anodizing oxidation technology and Horie's technology.|
|The characteristics of titanium coloring.|
|On the power of Photo Anti-Bacterial Power of oxidized titanium.|
Titanium is used as white pigment of oxidized titanium powder for
long period. But metallic titanium has been uscd after the Second World War
The characteristics of titanium are "Light Strong and Anti-corrosion".
Comparing to steel, titanium is only two thirds in unit weight,
same strength and strong corrosion resistant.
Because of these characteristics, titanium has been used in
Jet Engine Aeroplane and artificial satellite for long time.
Recently, new characteristics such as "non-harmfull to human body"
are discovered. Titaniu:n is newly used in the medical industry and
accessories. Titanium is watched in many in areas as a new material.
Titanium is strong anti-corrosion material but its surface is covered by very thin oxidized film (TiO2).
This film is transparent and has the strong refraction ratio
The light is refracted during passing the transparent film, and comes out as if it is colored.
When we control the thickness of the oxidized transparent film by the unit of angstrom (10-8cm) ,
we can present unlimited numbers of colors.
By the reason of transparent high refraction ratio, colors are clear and glossy.
Very high technology is neccessary for controlling the thickness of titanium oxidized film.
HORIE has developed stable and reliable anodizing oxidation treatment.
Simply speaking, anodizing oxidation is using the oxigen from electrolysis.
Titnium sheet on anode side (+), any good conductivity metal on cathode side (-) ,
put the elctricity, then,water disolves.
Oxigen disolved from water on the surface of titanium combined with titanium.[ O2 (O) + 2e- ]
Thus, TiO2 film grows on the titanium surface.
Film thickness is controlled in the order of angstrom (l0-8cm) unit by delicate change
of voltage and time of electricity current.
The gradation color which looks like rainbaw is produced by changing thickness of
film continuously with the controlling voltage during treatment in the solution.
This method is cumpletely deferent from printing technology , which controls the size of dott.
Titnium color looks differently , by the change of light such as,
morning or evening, or by the angle of looking.
Also, when the light source is differet, color my looks differently,
by the change of spcctrum in the light.
Halogen lamp is eficient for good looking.