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    More Light, Same Room Temperature...


    ...through shutters with Iriotec® 9000 pigments


    Shutters without Iriotec® 9000 pigments

Iriotec® 9000 – Intelligent Shading in Architecture

Sufficient sunlight is essential for humans. It brings vitality, motivation, health – well-being. The change between light and dark determines our day/night rhythm, that is, the fine-tuning of our inner biological clock. 

Though conventional glazing of skylights and light domes allows light into buildings, along with “white” light it also permits the invisible heat radiation to pass. What is needed is an intelligent shading system that filters out solar heat radiation while allowing the illuminating portion of sunlight to pass through. EMD Performance Materials’ functional pigments from the Iriotec® 9000 series offer exactly these advantages.

Iriotec® 9000 lets sunlight into buildings and rejects heat

Heat-reflecting, translucent pigments of the Iriotec® 9000 series provide transparent shading for glazing as well as blinds. Most of the visible part of sunlight that is essential for human well-being can pass into the residence, building, conservatory or stadium, while the invisible UV light is for the most part absorbed.

However, the multi-talented pigments show their greatest advantages in summer when heat usually accumulates under glass roofs or in conservatories. Iriotec® 9000 pigments reflect the infrared part of sunlight and with it the heat radiation, reducing it by up to 75 percent. Conventional, non-pigmented shading systems always reduce light transmission as well – to the detriment of the room’s brightness. 

EMD Performance Materials pigments of the Iriotec® 9000 series therefore offer a threefold advantage:

  • They let sunshine in and save costs for artificial light.
  • They make additional shading superfluous.
  • They enable considerable savings in building cooling when the sun shines with all its power.

The Product Description and Product Configurator will help you find just the right product for your application.


Brighter or Cooler – it's Your Choice

Three product alternatives for the heat-reflecting, translucent shading of living areas, public buildings or stadiums 

Three products of the Iriotec® 9000 series are suitable for heat-reflecting, translucent glazing of living areas, public buildings or stadiums – depending on your individual requirements. 
  • The “brightest” pigment Iriotec® 9875: Through its green transmission color, it offers the brightest room impression for the human eye and reflects most of the sun’s heat radiation. It is therefore the most selective shading system for architectural applications.
  • The “coolest” pigment Iriotec® 9880: Due to its enormously strong solar reflection, it is the “coolest“ of the Iriotec® 9000 pigments. The blue transmission color visually and psychologically intensifies the cool room impression. The golden reflection color provides transparent building envelopes with a noble, valuable appearance.
  • The “growth-fostering” pigment Iriotec® 9870: This pigment provides rooms with colorless shading without unnecessarily reducing light. The result: cooler rooms with abundant photoactive incident solar radiation. The right choice for conservatories with plenty of plants.
The portfolio of heat-reflecting, translucent pigments from EMD Performance Materials for architecture:
You will find a detailed overview of all technical properties and compositions of our heat-reflecting, translucent Iriotec® pigments in the menu bar above under Know-how.

Our Product Configurator will help you find just the right product for your application.
The thin layer composition of Iriotec® 9875 under the scanning electron microscope

Iriotec® 9000 – Our Know how for a Comfortable Indoor Environment

Thin layer technology optimizes transmission, absorption and reflection 
Iriotec® 9870, 9875 and 9880 stimulate the indoor environment – they shade living areas, offices and stadiums. And they do this without reducing the “white” part of sunlight that is essential for human well-being. The result: ample daylight in cooler rooms.

Mica-based thin layer technology
The core of the heat-reflecting Iriotec® 9000 pigments is made of mica. Multiple inorganic layers, created through a special thin layer technology, lend them their unique properties in transmitting, absorbing and reflecting sunlight for an optimal indoor environment.
Iriotec® 9000 pigments from EMD Performance Materials let pass the visible part of sunlight, absorb the harmful UV light and reflect the heat generating infrared light

Visible Light is desired – UV and infrared Light are kept out

Iriotec® 9000 pigments allow the visible part of sunlight to pass; they absorb the harmful UV light and reflect the heat-generating infrared light. 

These properties make the products of our Iriotec® 9000 series distinctly more effective than conventional shading paints, which reduce not only the incident solar radiation but also transparency – to the detriment of the room’s brightness.

Depending on the individual application conditions, rooms are up to 15 ºC cooler with Iriotec® pigments than with non-pigmented glazing systems – another advantage for ideal room conditions. 

51 percent of sun’s solar energy can pass
The actual temperature reduction that is achieved depends on many factors such as window size, room size and volume, air exchange, which direction the windows face and the colors of walls and furniture. Therefore the solar characteristics for the objective evaluation of a selective shading system are established according to the quality management and standardization system DIN EN 410 (parameters of glazing in construction). EMD Performance Materials has tested the efficacy of Iriotec® 9000 heat-reflecting pigments according to these standards. A pigment concentration of 0.5 percent in a PMMA platelet with a thickness of 1.5 mm yields the following results for products of the Iriotec® 9000 series:
  • A solar factor of 0.51 means that with Iriotec® 9870 in the coating 49 percent of the impacting solar energy remains outside and 51 percent can pass through. An ideal transparent material would have a solar factor of 1 and would allow 100 percent of the energy to pass through – without any absorption or reflection.
You will find detailed information on the relevance of sunlight for humans under the heading Mankind & Sunlight in the menu bar above.
Sunlight refraction

Sunlight and its Relevance for Humans

Why daylight is so valuable and keeps us active
There is no question of the stimulating effect of a bright summer’s day. We similarly lack vigor and vitality on gloomy winter days. We are familiar with terms like “winter depression,” and recently have become aware of the fact that we can become sick due to artificially lighted workplaces.

Why is this so? 
For a better understanding let’s take a closer look at sunlight itself. 
It spreads in waves, and from a human standpoint is divided into three spectra:
  • Ultraviolet (UV) radiation: This is the part of the light with the shortest wavelength – up to 380 nm. Due to the absorption of the earth’s atmosphere, only the parts above 300 nm reach us – the so-called UVB and UVA bands. UV light is invisible to the human eye.
  • Visible light: This is the part of the sunlight with wavelengths from 380 to 780 nm. Rainbows show the details of sunlight that appear “white” to us: from violet with the shortest wavelength, followed by blue, green, yellow, orange and red with the longest wavelength.
  • Near-infrared (NIR) and Infrared (IR) radiation: This is the invisible part of sunlight with wavelengths of 780 nm and higher. NIR ranges from 780 to 1400 nm. The IR wavelength is above 1.4 μm. It represents the warming portion of sunlight.
Visible light/daylight the most vital to humans
It’s a real “pick-me-up”: When sunlight enters the eye, it activates, via blue-sensitive receptors on our retina, certain areas of our brain that suppress the release of the neurotransmitter melatonin, which makes us sluggish and slows down our metabolism. This is why melatonin is also called "messenger of the night." Moreover, many important bodily functions only operate correctly if the eye or the skin is exposed to a certain amount of daylight.

Natural sunlight varies in its intensity and color throughout the day and develops a certain dynamic. For the human eye and its perception of the environment it therefore is more suitable than static artificial light.

Unlike artificial light, natural sunlight facilitates a
  • Relaxed vision
  • Better perception of colors
  • Superior stereopsis
It ultimately leads to the fact that eyes and humans tire less quickly.

Too much UV radiation is cytopathic to all living organisms – plants and humans alike. Important genetic information in the nucleus can be destroyed by short-waved light.

Too much infrared light causes the temperature rise. The room temperature most comfortable to humans is between 20 and 23 ºC. A person’s capability to perform falls by one third already at 28 ºC.

Therefore, the ideal atmosphere of a room depends on three factors: 
  • As much visible light as possible 
  • Not too much UV light
  • An ideal room temperature
The functional pigments Iriotec® 9870, 9875 und 9880 in glazing, roofing and blinds create optimal room conditions for humans:
  • They let pass a large part of the visible light that is so important for humans.
  • They shade rooms colorlessly.
  • They absorb UV radiation.
  • They reflect IR radiation.
Find out more information regarding technology and the effect of Iriotec® 9870, 9875 and 9880 under the heading Know-how in the menu bar above.

One application possibility for Iriotec® 9000 pigments: Translucent roofing of pedestrian bridges

Iriotec® 9000 – Know how for Selective Light Transmission

Translucent skylights and roofing by means of printing, extrusion and co-extrusion  
The functional pigments Iriotec® 9770, 9870 and 9875 open up new possibilities in the architectural/artistic use in 
  • Skylights
  • Light domes
  • Roofing
  • Shading systems
  • Blinds
  • Residential homes
  • Public buildings
  • Stadiums
  • Roofed hallways (such as overpasses or at airports)
Equipped with the property of selective light transmission, the pigments allow brightness to pass and keep heat out. They do this whether they are applied on or in windows, roofing or blinds, because what is crucial for their shading effect is not so much the thickness of the layer as the amount of pigment per area.

Iriotec® on and in skylights, roofing or shading systems
The weatherproof pigments of the Iriotec® 9000 series can lend their selective properties to glass, multiwall panels or transparent blinds through coating or printing. They can also be worked into the material of the window, roofing or roof paneling of a stadium roof. Suitable materials are films, mono sheets and multi-skin sheets that are made by extrusion or co-extrusion.

For a good distribution the Iriotec® pigments should be added as a compound.