odour - absorbing sheet - like structure comprising vegetable and / or manmade fibres , in particular a sheet - like structure having an air permeability suitable for filters and vacuum cleaner bags , which sheet - like structure has zinc ricinoleate in an amount in the range of 0 . 1 to 20 % by weight , based on the weight of the sheet - like structure , in finely divided solid form on at least a part of the free fibre surface , and method for its production by treatment of a sheet - like structure with a dispersion of fine zinc ricinoleate particles or by spraying on a mist of a melt or solution of zinc ricinoleate .