RADAR-ABSORBING COATING ON TEXTILE MATERIALS Russian patent published in 2018 - IPC D03D15/00 

FIELD: technological processes.

SUBSTANCE: invention relates to materials intended to protect special equipment and personnel against electromagnetic radiation of electronic devices. Radar-absorbing coating on textile materials contains flat carbon particles, with low-layer or multi-layered graphene particles containing oxide groups that act as flat carbon particles, with an advantageous transverse particle size of 1–10 mcm and a particle thickness of 2 to 30 graphene layers dispersed in a printed composition applied to the textile material including a thickener (binder), surfactant and water with the following ratio of components: particles of low-layer or multilayer graphene – 0.87–11 mass.%; thickener (binder) – 0.2–75 mass.%; surfactant – 0–3 mass.%; water is the rest. Fixation of printed matter on the material is carried out under the influence of high-energy radiation or high temperatures. Second printing composition further comprises a textile pigment or a mixture of pigments.

EFFECT: provision of a high stability of the coating to physicochemical effects, the possibility of obtaining a material with an electromagnetic absorption that is regulated by the surface area, expansion of the field of application of the radar-absorbing material while a high efficiency of absorption of electromagnetic radiation is maintained.

3 cl, 3 tbl