From the Sector

Marabu is one of the first ink manufacturers to achieve climate neutrality. All Marabu Business Units will, where possible, make a specific contribution to achieve the 17 United Nations Sustainable Development Goals (SDGs) with PROJECT GREEN and therefore participate in the Green Deal.

"We are safeguarding the future of the next generations and are proud that we have managed to be a climate neutral company from July 2021 with the Tamm and Bietigheim sites. All our products, whether printing inks or creative colours, are climate neutral, too," explains York Boeder, CEO Executive Committee. "Our so-called PROJECT GREEN combines all measures that are taking us on our journey to climate neutrality. Climate protection is a particular concern for us, to which we have made a binding commitment within the scope of an extensive sustainability strategy. In accordance with our Marabu Green Deal, we avoid and reduce emissions wherever possible, e. g. by using green electricity, energy-saving schemes, mobility concepts or environmentally friendly materials. We offset all unavoidable CO2 emissions by supporting internationally certified climate protection projects. We are continually implementing measures to improve our carbon footprint and update them annually to make their success measurable. We have therefore set ourselves the active goal of reducing our CO2 emissions by another 25 % by 2030."

For decades, Marabu has invested in the research and development of safe production processes, environmentally friendly products, and clean technologies with the aim of preserving the natural environment. Marabu has worked with Climate Partner to analyse all the CO2 emissions from the sites in Tamm and Bietigheim and determine its carbon footprint. Including all product-related factors such as raw materials and logistics, Marabu currently generates approx. 18,500 tons of unavoidable CO2 emissions. This value is the positive result of a number of climate-friendly measures pursued by Marabu, such as the early switch to green electricity in 2007.

Marabu's main activities to avoid and reduce CO2 emissions:

• Energy - Switching to green electricity from hydropower
• Mobility - Migration of the company's vehicles to electric and hybrid cars as well as in e-charging stations
• Production - Use of renewable energies and resource-efficient production processes
• Raw materials - Replacing critical substances with environmentally friendly alternatives for new and existing products
• Transporting - Climate-neutral freight carriers and lower-emission transport methods like shipping or road transport replace air freight wherever possible
• Product technology - Modern, low-emission products

Aachen researchers have developed the adaptive textile facade green.fACade, which was presented on 2^nd August 2018 in the Aachen Faculty of Architecture of RWTH Aachen University, Germany. green.fACade is installed in front of a building like a second skin and can permanently reduce nitrogen oxide pollution in cities.

The researchers achieve the reduction of harmful nitrogen oxides (NO and NO2) by coating the facade with titanium dioxide. Titanium dioxide acts as a photo catalyst and enables the oxidation of nitrogen oxides to form washable nitrate (NO3-). Since the facade is also greened, it contributes to the conversion of carbon dioxide into oxygen by photosynthesis. In addition, a green facade creates an optical resting point in the cityscape and reduces urban heat through evaporation cooling. The enclosed pictures demonstrate how the introduction of green.fACade can have an effect. Picture 1 shows the Aachen Central Bus Station after, picture 2 before the possible introduction of green.fACade.

green.fACade is part of the innovative research project "adaptive textile facades", which uses the special properties of textiles. Thanks to its design, textiles can let sunlight and air through, thus contributing to a modern, aesthetic building design. A new feature of the research project is that further elements such as the titanium oxide coating or sun protection elements are integrated into the textile facade and placed in front of the existing building facade. The adaptive textile facade acts independently and thus reduces energy consumption through the positive climatic effects on the building facade.

"Adaptive Textile Facade" is part of a current research series with the aim of developing innovative facade constructions that are climate-neutral and increase the comfort of local residents. The research team consists of the three RWTH fields of architecture (Faculty of Architecture, PhD student architect M.Sc. Jan Serode), medicine (University Hospital RWTH Aachen, Clinic for Ophthalmology, Prof. Dr Walter) and textile technology (Institut für Textiltechnik, Prof. Dr Gries) and was able to contribute its expertise in the best possible way.

This summer the research team was supported for the first time by the Munich architectural office Auer Weber, represented by managing director Philipp Auer: "For us architects, developments in the field of textile outer shells are a special challenge. Here, highly developed textile materials and processing methods are combined with the lightness and grace of fabrics. Adaptive textile facade elements will increasingly turn the "building shell" into a "building skin", a system that not only offers weather, heat and sun protection, but is in constant intelligent exchange with its environment".

The great importance of these topics for the public was documented by the presence of Kirsten Roßels, representative of the Department of Economics, Science and Europe of the city of Aachen.  Ms Roßels explains: "As the city of Aachen, we are delighted with the innovative and future-oriented project ideas that are being developed at Aachen University, such as the adaptive textile facade. These developments underline the importance of Aachen as a city of science and I would appreciate it if these and other technologies could also become visible in Aachen in the future".

Prof. Dr Gries from the Institut für Textiltechnik sums up: "As textile researchers, we see a great opportunity to develop concrete solutions for our urban living spaces together with renowned experts from other disciplines. I'm sure we can make the urban climate more pleasant and reduce pollution."