Karavana, Hüseyin AtaKılınç, Kemal2021-06-232021-06-2320179788193263907https://hdl.handle.net/20.500.12491/3933https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041338869&partnerID=40&md5=2dfc7f98e3a0a0986cc22be7da27adf334th International Union of Leather Technologists and Chemist Societies Congress, IULTCS 2017 -- 5 February 2017 through 8 February 2017 -- -- 133186Drying is one of the most important leather production processes which is necessary to obtain usable leather form from skin and determines the basic structural, chemical and physical properties of the leather. Using different drying methods in the footwear upper production affect the change in surface area of the leathers as distinct from each other. Surface area gain has a great significance since the footwear upper leathers are sold depend their size of the surface area. In this research, it is determined that the surface area gain of the each footwear upper leathers which manufactured using the wet-toggle and vacuum drying methods that are different drying processes, and the area gain of the leathers are compared. As a result, it is observed that the significance changes occurred on the surface area gain of the same origin upper leathers as using the different drying methods and conditions. Especially, the wet-toggle for the drying of footwear upper leathers is a preferable drying method because of the better surface area gain provided by the method.eninfo:eu-repo/semantics/closedAccessArea gainShoe upper leatherVacuum dryingWet-toggle dryingConference Object30352-s2.0-85041338869N/A