Layer materials treated with durable acidic odor control/binder systems

The present invention is directed to layer materials such as nonwoven webs, films, and the like, which are treated with acidic odor control compounds that are not easily washed away. A thermoplastic layer material has at least one odor reducing surface which is treated with a carboxylic acid-based odor control agent, and which is able to withstand insults with an aqueous liquid. The acid-based odor control agent is bound to the layer material by an organosilicone polymer binder. The binder is water-insoluble, and can form a highly gas-permeable coating. The binder is also highly porous, so as to expose the odor control agent to ammonia and other odoriferous gases which it is intended to control.