Adsorbent article with dust collection function

A process for preparing an adsorbent article of a woven sheet having a coarse three-dimensional structure with a dust collecting function, which is prepared by:

• dipping a woven sheet into a bath containing a latex, an emulsion or a non-solvent adhesive, thereby infiltrating and impregnating the woven structure with a binder material;
• squeezing the binder impregnated sheet through rollers and blowing air therethrough in order to break or remove films of binder between the intertwined internal fibers of the sheet;
• passing the binder impregnated woven sheet laterally through a fluidized bed of activated carbon particles kept in the fluidized state by an upward flow of air slightly over the minimum necessary to maintain the fluidized state, wherein the force of upwardly flowing air forces the carbon particles uniformly into the internal structure of the woven sheet;
• and then
• pressing the sheet containing the carbon particles between rollers thereby firmly adhering the particles within the sheet and leaving individual particles partially exposed in the internal fiber structure of the sheet.

An adsorbent article of a woven sheet having a coarse three-dimensional structure with a dust collecting function, which is prepared by a process comprising:

• dipping a woven sheet into a bath containing a latex, an emulsion or a non-solvent adhesive, thereby infiltrating and impregnating the woven structure with a binder material;
• squeezing the binder impregnated sheet through rollers and blowing air therethrough in order to break or remove films of binder between the intertwined internal fibers of the sheet;
• passing the binder impregnated woven sheet laterally through a fluidized bed of activated carbon particles kept in the fluidized state by an upward flow of air slightly over the minimum necessary to maintain the fluidized state, wherein the force of upwardly flowing air forces the carbon particles uniformly into the internal structure of the woven sheet;
• and then
• pressing the sheet containing the carbon particles between rollers thereby firmly adhering the particles within the sheet and leaving individual particles partially exposed in the internal fiber structure of the sheet.