7 ROLLERS AND MACHINES HAVING ROLLERS FOR THE PRODUCTION, TREATMENT OR GUIDING THE TRAVEL OF WEBS OF TEXTILE MATERIAL, PAPER, CARDBOARD, SYNTHETIC MATERIAL, METALS, WOODEN MATERIALS AND MATERIALS CONSISTING OF THESE SUBSTANCES; CALANDERS FOR SMOOTHING AND EMBOSSING PAPER AND TEXTILES; SPRAYERS FOR APPLYING LIQUIDS FOR DYEING PATTERNING OR COATING OF WEBS AND WASHING MACHINES FOR TEXTILE WEBS