Cellulosic web with a contaminant barrier or trap

A non-woven cellulosic fiber web, having improved barrier or trap properties in the presence of a permeant, the web comprising a laminate comprising:

• (a) a first layer comprising a continuous array, having a thickness of greater than 0.1 mm, of randomly oriented cellulosic fiber;
• and
• (b) a second film layer comprising a thermoplastic film forming polymer and an effective permeant absorbing amount of a modified cyclodextrin compound;
• wherein the modified cyclodextrin compound has substituents rendering the compound compatible in a thermoplastic polymer, is substantially free of an inclusion complex compound and can act as a barrier to the passage of a permeant from the ambient environment or act as a trap of a permeant arising from the web.

A non-woven web comprising a cellulosic fiber, having improved barrier or trap properties in the presence of a permeant, the web comprising:

• (a) a layer comprising a continuous array of randomly oriented cellulosic fiber;
• and
• (b) a flexible coating comprising a film forming polymer and an effective permeant absorbing amount of a cyclodextrin compound;
• wherein the cyclodextrin compound is substantially free of an inclusion complex compound and can act as a barrier to the passage of a permeant from the ambient environment or act as a trap of a permeant arising from the web.