OLGA NICULESCU, MINODORA LECA, CIPRIAN CHELARU, LAURENTIU C. DINCA ABSORPTION AND WATER RESISTANCE OF NATURAL LEATHERS FINISHED WITH ECOLOGICAL TOUCH EMULSION IN THE FINAL DRESSING
An ecologic emulsion for leather touch was prepared by emulsifying a mixture of beeswax, lanolin and triethanolamine monostearate stabilized with lauryl alcohol ethoxylated with 7 moles of ethylene oxide. It has a homogenous appearance and particle sizes ranging between 2 and 4 mm. Used in amounts of 20-100% in polyurethane, nitrocellulose or acrylic final dressing, it improves feel and water resistance of finished leather. For a given amount and time, this wax emulsion leads to lower amounts of water absorbed than a silicone oil emulsion used as control. The lowest values for water absorption in leather were obtained by adding the emulsion in polyurethane dressing, and the highest values – in acrylic dressing.
Keywords: ecologic wax emulsions, leather finishing, final dressing, waxy feel