## 1 Introduction  
In recent years, more and more emitters of electromagnetic (EM) irradiation are being found in companies and laboratories but also in everyday life environments. While the potential danger of electromagnetic irradiation for people is still under discussion, protection of electronic equipment from external EM irradiation is often important in terms of cyber security. Electromagnetic interference (EMI) shielding reduces the exposure of volatile devices or living tissues to electromagnetic radiation. Shielding mechanisms can be subdivided into reflection, absorption, multiple reflections, or combinations thereof [1; 2; 3]. To avoid unwanted secondary electromagnetic (EM) irradiation due to reflection, absorption is often preferred among these mechanisms [4; 5]. The EM disturbances that should be suppressed can be observed in all electrical and electronic devices and systems in a very broad frequency range up to 1 THz [6; 7; 8; 9; 10; 11]. Although machines are often shielded by rigid materials, in many situations, lightweight, durable, elastic materials, such as macroscopic textile fabrics or nanofibrons membranes with suitable electrical and magnetic properties, are preferable [12; 13]. Usually, textile fabrics are isolating. Nevertheless, it is possible to coat them with conductive materials or to integrate conductive materials in the form of nanoparticles or fibers, thus making them conductive. High shielding effectiveness is often approached by coating textiles with MXenes. MXenes belong to the two-dimensional materials that have been under intense investigation in recent years and contain early transition metal carbides, nitrides, and carbonitrides, showing different metallic or ceramic properties for different chemical constitutions [12]. They can oxidize in humid environments and thus have to be protected from water vapor. Nevertheless, they are found in many recent studies on EMI shielding textile fabrics. [PERSON] et al., for example, coated polypyrrole(PPy)-modified Mxene sheets on textile fabrics from poly(ethylene terephthalate) (PET) before applying an additional silicone coating as a protection layer, thus reaching a high electrical conductivity of approximately 1000 S/m and an EMI shielding effectiveness of around 90 dB, besides good Joule heating performance [14]. By dip-coating cotton and linen fabrics in MXene dyes, [PERSON] et al. reached 40 db EMI shielding in the X band (8.2 GHz-12.4 GHz) for four coating cycles and 80 dB shielding after 24 coating cycles; they also reached long-term stability, with only an 8-13% reduction of these values after storing the samples under ambient conditions [15]. While EMI shielding is mostly in the focus of such studies, researchers sometimes also mention good heating performance due to the gained conductivity of the coated textile fabrics and even bactericidal efficacy, e.g., against _E. coli_ and _S. aureus_, as [PERSON] et al. showed for MXene-decorated polypodamine-modified cellulose nonwovens [16]. Besides the relatively new approaches to improving EMI shielding through MXene coating, several researchers report more conventional coatings, including metals. Such metal coatings can contain copper, for example, which is applied in a strong alkali bath and subsequently stabilized on the fibers by silanization, a process that can increase or decrease the original EMI shielding effectiveness by a factor of 2, depending on the chosen silane [17]. Electroless plating with copper particles on a polyester nonwoven was suggested by [PERSON] et al., resulting in EMI shielding in the frequency range of 0.5-1.5 GHz at 30-55 dB [18]. Applying silver nanoparticles on an oxidized cellulose textile surface, [PERSON] et al. reached 47-69 dB shielding for a single- or triple-layer system [19]. Coatings containing carbon, such as graphite or carbon black, are also very common in the textile industry and can be used to increase the conductivity of a textile fabric [20]. Using carbon nanotubes (CNTs), [PERSON] et al.