1. STRUCTURES OF ETHYLENE POLYMER THE SURFACES OF WHICH HAVE UNIFORMLY DISTRIBUTED THEREON FROM 2 TO 70 MILLIGRAMES PER SQUARE YARD OF SURFACE OF A COMPOSITION CONSISTING OF PARTICULATE POLYVINYL ACETATE HAVING A PARTICLE SIZE OF FROM 3 TO 12 MICRONS, LITHIUM CHLORIDE, AND A SALT OF THE GROUP CONSISTING OF THE ALKALI METAL AND AMMONIUM SALTS OF WOOD ROSIN, THE ALKALI METAL AND AMMONIUM SALTS OF HYDROGENATED WOOD ROSIN, AND THE ALKALI METAL AND AMMONIUM SALTS OF POLYMERIZED WOOD ROSIN.