Pembuatan kulit tahan air untuk bagian atas sepatu

The aim of research non manufacturing of waterproof leather for shoe upper is to find the best formula in producing waterproof cow hide leather for shoe uppers. Today, the tanners trying their best effort to fulfill the shoes. The research used salted raw cow hide 18 sides were utilized. Leather treatment process begining with soaking stage up to tanning stage and using the same formula in each treatment. In the fatliquoring stage, the treatment varied in the number of fatliquoring chemical material were 8,10, and 12 % respectively. Whereas, the amount of was silicon added in the dyeing process were 5,7.5, and 10 % respectively. The quality of the leather was physically examined accordance with testing method of ISO. 8782- 1998 ? and DIN standard. The results performed that the best formula was sample with addition of fatliquoring 12 % and silicon5%.