Merck Effect pigments
Merck Effect pigments
Merck Effect pigments
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<strong>Merck</strong><br />
<strong>Effect</strong> <strong>pigments</strong><br />
<strong>Merck</strong> research plays a crucial part in the development<br />
of <strong>pigments</strong> that are based on metal oxide coated<br />
substrates. In the 1960s, the successful breakthrough<br />
was accomplished with the production of Iriodin®.<br />
Since then, the number of color design possibilities<br />
has increased exponentially in every area of application.<br />
<strong>Merck</strong>’s effect <strong>pigments</strong> have become established<br />
in industrial coating applications. <strong>Merck</strong> continuously<br />
offers its customers new design ideas and design tools.<br />
In close cooperation with processors and brand name manufacturers, <strong>Merck</strong> searches<br />
continually for new effect possibilities in all markets. A primary focus lies in the<br />
development of completely new types of <strong>pigments</strong>. Among the new developments<br />
are the multi-color effect <strong>pigments</strong> Colorstream® and the high chroma crystal effect<br />
<strong>pigments</strong> Xirallic® – two pigment generations with huge design potential.<br />
<strong>Merck</strong> research is geared not only towards the development of unusual color effects,<br />
but also towards the realization of functional properties, for example, weather<br />
resistant <strong>pigments</strong> for outdoor applications, or conductivity with lightcolored,<br />
semi-transparent <strong>pigments</strong>. The demands and areas of application for customers are<br />
already taken into consideration during the product development. With its service<br />
and documentation, the coatings business field at <strong>Merck</strong> has adapted itself especially<br />
to the demands of the coating industry.<br />
With its pigment ranges Iriodin®, Colorstream®, Xirallic®, Miraval®, Biflair®,<br />
Minatec® and Solarflair®, <strong>Merck</strong> offers an innovative product portfolio and special<br />
added value products in outstanding quality, as well as technical application<br />
support and presence in the coremarkets of the world. <strong>Merck</strong> offers its customers<br />
the opportunity to jointly develop innovative products and intelligent solutions<br />
with the <strong>Merck</strong> product families. This opens up nearly unlimited effect possibilities<br />
to the customer.<br />
Pearl Luster and Interference<br />
Pigments on the Basis of Mica<br />
Iriodin® pearl luster <strong>pigments</strong> are consist of thin platelets of the natural mineral<br />
mica, which are covered with a thin layer of metal oxides such as titanium<br />
dioxide and/or iron oxide. Due to the interaction of light refraction and reflection<br />
interference as well as unique luster and color effects appear.<br />
Silver-white and colored pearl luster effects, as well as gold and metallic luster<br />
effects, can be achieved with Iriodin®. The iridescent effects enable an angledependent<br />
color design. Depending on the size of the Iriodin® pigment particles,<br />
the effect varies from silky to glittery.<br />
Through their transparent properties, Iriodin® pearl luster <strong>pigments</strong> can generate<br />
individual designs of color impressions when applied on different undercoat<br />
colors. Moreover, through the combination with colored <strong>pigments</strong>, a multitude of<br />
styling possibilities arises for the formation of opaque color layers.<br />
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Pigment<br />
Preparations for<br />
Powder Coatings –<br />
Iriodin ® PC<br />
In addition to our Iriodin® products, we offer special preparations<br />
for use in powder coatings. Iriodin® PC pearl luster<br />
<strong>pigments</strong> were developed expressly for the corona process,<br />
which is mainly used for powder coating applications.<br />
PC stands for Powder Coating.<br />
Iriodin® PC <strong>pigments</strong> are offered for interior and exterior<br />
applications. Special solutions are available for the dryblend<br />
as well as the bonding process. The product program<br />
deliberately focuses on the attractive color segment of silverwhite<br />
and gold luster <strong>pigments</strong>.<br />
High Chroma Crystal <strong>Effect</strong><br />
Pigments on the Basis of<br />
Aluminum Oxide<br />
Xirallic® <strong>pigments</strong> are based on a synthetic substrate, namely, aluminum<br />
oxide (corundum) flakes. Through the employment of a new crystallization<br />
process, it is possible to produce aluminum oxide platelets with a<br />
perfectly planar surface and a tight particle size distribution. The substrate<br />
is coated with highly refractive metal oxides.<br />
Xirallic® demonstrates a very strong glitter effect with a distinct<br />
shimmer behavior and distinguishes itself through strong and very pure<br />
colors. The effect is increased by directed light (for example sunlight).<br />
Analogous to the classical interference <strong>pigments</strong>, silver-white effect<br />
<strong>pigments</strong> and gold, red, lilac, blue, green and turquoise interference<br />
<strong>pigments</strong> can be generated by coating the aluminum oxide flakes with<br />
titanium oxide. Coating the aluminum oxide flakes with iron(III) oxide<br />
produces copper and red effect <strong>pigments</strong>.<br />
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Multi-Color <strong>Effect</strong> Pigments on<br />
the Basis of Silicon Dioxide<br />
The Colorstream® Multi-Color <strong>Effect</strong> Pigments consist, in contrast to the mica<br />
based Iriodin® <strong>pigments</strong>, of synthetically produced silicon dioxide (SiO 2) material.<br />
If these transparent SiO 2 platelets are coated with highly refractive metal oxides,<br />
<strong>pigments</strong> with goniochromatic properties (also known as “Color Travel") arise:<br />
the thickness of the SiO 2 substrate can be controlled in the preparation (a web<br />
coating process), so that at the end a pigment with a true optical three-layersystem<br />
is obtained.<br />
The interference color of those systems is stronger than for the conventional<br />
mica <strong>pigments</strong> for which the effect of the mica is “wiped out” by a broad thickness<br />
distribution.<br />
Weather Resistant Pigments<br />
for Exteriors<br />
The quality requirements on coatings for exterior applications are considerably<br />
higher than for other applications. Therefore <strong>Merck</strong> has developed its own range<br />
of weather resistant <strong>pigments</strong>, which also meets the high demands of the modern<br />
automotive coatings.<br />
There are weather resistant <strong>pigments</strong> for the Iriodin®, Xirallic® and Colorstream®<br />
product families. Through an additional coating, an outstanding weather<br />
resist ance is ensured for all external applications. In order also to be able to use<br />
weatherproof <strong>pigments</strong> in automotive coatings, they must have two additional<br />
properties that differentiate them from standard coatings for external applications.<br />
Firstly they must have a smaller particle size distribution, whereby most<br />
importantly the number of larger particles on the upper end of the particle size<br />
distribution is reduced. This is especially important in order to ensure a problemfree<br />
application of serial color tones for cars. Secondly they must have a tighter<br />
coloristic tolerance. The consistent coloristic quality is especially important<br />
for the use in the Intermix systems, which have a wide field of application, for<br />
example, in repair coatings for the automotive industry.<br />
<strong>Merck</strong> recommends the use of weather resistant <strong>pigments</strong> also for interior<br />
applications when higher demands are placed, for example, to protect against<br />
humidity or UV light. Typical examples for this are furniture or interiors in<br />
sanitary rooms such as bathrooms and toilets, or in kitchens, as well as areas<br />
with moisture and water.<br />
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Silky Silver Luster on the Basis<br />
of Bismuth Oxychloride<br />
Biflair® are unique effect <strong>pigments</strong> made<br />
on the basis of bismuth oxychloride offered<br />
as dispersion.<br />
The Biflair® bismuth oxychloride platelets distinguish themselves by their<br />
silky metallic luster, high degree of whiteness, good hiding power covering<br />
ability and narrow particle size distribution. Biflair® <strong>pigments</strong> are nontoxic<br />
and offered as dispersion.<br />
Biflair bismuth oxychloride dispersions allow many fascinating effects for<br />
a wide spectrum of applications: for example silky silver luster effects for<br />
products in entertainment electronics; for household, sport and high-tech<br />
devices; cosmetic packaging and more.<br />
Glitter <strong>Effect</strong>s based<br />
on Calcium-Aluminum-<br />
Borosilicate<br />
Miraval® effect <strong>pigments</strong> dazzle with their light and uniform purity of<br />
colors, as well as their high transparency and intensive reflective power.<br />
These effect <strong>pigments</strong> with their brilliant shimmer and radiating luster are<br />
based on calcium-aluminum-borosilicate. Varying the concentration level<br />
in the formulation can create fascinating effects ranging from individual<br />
sparkle of luster to a metallic appearance. To retain a delicate glimmer or<br />
luster, Miraval® <strong>pigments</strong> can be added to formulations with a concentration<br />
of less than 1 % without creating a change in the color tone. Combining<br />
Miraval® <strong>pigments</strong> with each other can open up an extraordinary variety of<br />
styling possibilities.<br />
The silver-white pigment Miraval® 5311 Scenic White and Miraval® 5411<br />
Magic White differ from each other by their particle size distribution thus<br />
sparkle. Both <strong>pigments</strong> can be used in different applications, like plastic<br />
coatings and powder coatings. Miraval® interference <strong>pigments</strong>, based on the<br />
same fraction of 20 to 200 µm as Miraval® Magic White, are available in the<br />
color tones blue, red, green, gold, copper, turquoise and lilac.<br />
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Functional Pigments<br />
With the Minatec® product family, <strong>Merck</strong><br />
provides the coating branch with functional<br />
<strong>pigments</strong> for manufacturing light-colored<br />
coatings with conductive or infrared absorbing<br />
properties.<br />
The conductive Pigments Minatec® 31 CM, Minatec® 40 CM and Minatec®<br />
60 CM offer various possibilities to formulate coatings in light colors.<br />
They are suitable for industrial applications that require a surface resistance<br />
of 10 4 to 10 9 ohms. Minatec® <strong>pigments</strong> consist of substrates which<br />
are coated with doped tin oxide.<br />
The major industrial applications in which Minatec® <strong>pigments</strong> are used<br />
include light-colored antistatic flooring and conductive primers. Primers<br />
that contain Minatec® are used to give insulation materials an electrostatic<br />
application (ESTA). An example of this industrial use is the manufacture<br />
of light-colored undercoats for automotive parts made of plastic. Lightcolored<br />
antistatic floor coverings that are formulated with Minatec® are<br />
used for example in the production of electronic components that must<br />
be protected from uncontrolled discharge. Further application areas for<br />
antistatic floor coatings are production facilities, warehouses, clean rooms<br />
or hospitals.<br />
The infrared-absorbing pigment Minatec® 230 A-IR supports the trend of<br />
utilizing infrared radiation in the drying process of coatings. Minatec® 230<br />
A-IR is a light gray-colored pigment, developed particularly to improve the<br />
absorption capabilities of light-colored coatings. Its features allow shorter<br />
drying times for coatings and correspondingly lead to increased production<br />
capacities with smaller energy costs.<br />
Functional Pigments for<br />
Translucent Systems<br />
Under the brand name Solarflair® <strong>Merck</strong> offers<br />
functional <strong>pigments</strong> which allow the visible part<br />
of sunlight to pass, but reflect the sun’s heat rays.<br />
Solarflair® 870 and Solarflair® 875 unfold their unique features in transparent<br />
systems in architecture and horticulture. Whether in skylights,<br />
greenhouse canopy tops or glass winter garden elements, Solarflair® <strong>pigments</strong><br />
absorb only a small portion of visible light, while heat radiation is<br />
considerably reduced. Depending on the individual application conditions,<br />
the room temperature in spaces “protected” by Solarflair® is decreased by<br />
up to 15 degrees Celsius. With Solarflair® rooms stay light and pleasantly<br />
cool at the same time – even under direct solar radiation.<br />
Solarflair® 870 and Solarflair® 875 are also available in weather<br />
resistant grades.<br />
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Our Services for<br />
Your Success<br />
<strong>Merck</strong> places the highest standards of quality on<br />
its products and services. The customer’s desire is<br />
always at the forefront. This is one of the reasons<br />
why <strong>Merck</strong> is present in the core markets around<br />
the world. The global presence enables <strong>Merck</strong> to<br />
support its international customers with competent<br />
consulting, outstanding service and the<br />
necessary technical applications on location.<br />
Technical Application Consulting and Customer Care<br />
The technical application consultants offer support on location, and<br />
with their consultation, make sure that the customer’s effect coating<br />
is a complete success. They take into consideration the interests of the<br />
market during the development of new products and provide customers<br />
with innovative know-how to help them attain decisive competitive<br />
advantages.<br />
<strong>Merck</strong> has technical application laboratories at its disposal, which are<br />
specially geared towards the production, application and testing of coatings.<br />
The laboratories make it possible to work out technical solutions<br />
and to provide customers with demonstration materials and formulation<br />
suggestions.<br />
The color suggestions are also developed on the basis of trend research<br />
and information. The effects are visualized in brochures, color cards,<br />
design and styling tools.<br />
Quality<br />
With its control processes, <strong>Merck</strong> delivers the highest quality, and with a<br />
Certificate of Analysis, it documents that the parameters laid down in the<br />
specification are checked and maintained. In addition, datasheets give<br />
information about further product details. Our plants in Darmstadt and<br />
Gernsheim, Germany are certified according to DIN EN ISO 9001 and also<br />
ISO 14001.<br />
Field service<br />
In numerous market regions of the world, <strong>Merck</strong> has at its disposal a sales<br />
representative specialized in the coating industry in order to be able to<br />
adapt optimally and quickly to the interests of the customers. Only a clear<br />
understanding of the customer’s situation on site guarantees the best<br />
results.<br />
Regulatory Affairs<br />
<strong>Merck</strong>’s Regulatory Affairs department is responsible for the observance<br />
of the legal and safety-relevant interests regarding the development of<br />
effect <strong>pigments</strong> for coating applications.<br />
Distribution<br />
<strong>Merck</strong> offers worldwide customer service, product development that is<br />
oriented toward regional demands, and guarantees worldwide supply with<br />
its products. <strong>Merck</strong> has research and production locations in Gernsheim,<br />
Germany, Onahama, Japan as well as Savannah, Georgia in the USA. In<br />
addition, the company has at its disposal subsidiaries and/or commercial<br />
agencies in most countries of the world.<br />
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