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  • Utjecaj temperature sušenja...
    Mihanović, Suzana; Žuvela Bošnjak, Franka

    Koža & obuća, 12/2021, Letnik: 69, Številka: 3-4
    Journal Article, Paper

    U ovom radu je istražen utjecaj temperature sušenja na sorpcijska svojstva goveđe sintetski štavljene hidrofobirane kože. Kože su sušene na uređaju za sušenje uz primjenu vakuuma pri temperaturi od 40, 45, 50 i 55 °C u vremenu od 90 sekundi nakon provedbe štavljenja, nadoštave, bojanja i mašćenja u realnom proizvodnom procesu. Ispitivanjem apsorpcije vlage te vremena propuštanja i apsorpcije vode kože tijekom dinamičkog gibanja na penetrometru utvrđen je značajan utjecaj temperature sušenja na sorpcijska svojstva kože. In this paper the influence of drying temperature on the sorption properties of bovine synthetic tanned hydrophobic leather was investigated. The leathers were dried on a vacuum dryer at a temperature of 40, 45, 50 and 55 ° C for a period of 90 seconds after tanning, retanning, dyeing and fatliquoring in a real production process. By examination the moisture absorption, water penetration time and water absorption of the leather during the dynamic movement on the penetrometer, a significant influence of the drying temperature on the sorption properties of the leather was determined.