A laundry detergent or cleaning composition portion and process for producing the portion. The composition comprises a water-soluble melt adhesive comprising A) at least one homopolymer or copolymer having free carboxylic and groups based on ethylenically unsaturated monomers, B) at least one water-soluble or water-dispersible polyurethane and C) at least one inorganic or organic base. The detergent or cleaning portion may further comprise water-soluble or water-dispersible packaging materials.