Perlu akeh perawatan kimia lan mekanik lengkap saka kulit mentah nganti kulit rampung, umume kudu ngliwati prosedur kerja 30-50. Biasane dipérang dadi patang tahap: persiapan kanggo penyamakan, proses penyamakan, proses udan sawise penyamakan lan proses pangatusan & finishing.
A. Proses Produksi Kulit Upper Sepatu Sapi
Kulit Mentah: Kulit Sapi Asin
1. Preparation Kanggo Tanning
Pengelompokan → Timbang → Pra-Rendaman → Daging → Rendam Utama → Timbangan → Pengapuran → Daging → Pisah Gulu
2. Proses Tanning
Timbangan → Cuci → Deliming → Softening → Pickling → Chrome Tanning → Numpuk
3. Proses Basah Sawise Tanning
Milih & Pengelompokan → Sammying → Pisah → Cukur → Trimming → Timbang → Cuci → Chrome Re-Tanning → Neutralizing → Re-Tanning → Dyeing & Lemak Liquoring → Cuci → Numpuk
4. Proses Pangatusan & Rampung
Setting Out → Vacuum Drying → Stewing → Hang Drying → Wetting Back → Staking → Milling → Toggling Drying → Trimming → Milih
(1) Kulit Ndhuwur Sepatu Gandum Penuh:Cleaning → Coating → Ironing → Klasifikasi → Measuring → Storage
(2) Kulit Ndhuwur sing dikoreksi:Buffing → Dedusting → Isi Kering → Hang Drying → Staking → Selecting → Buffing → Dedusting → Ironing → Coating → Embossing → Ironing → Klasifikasi → Measuring → Storage
B. Kulit Sandhangan Wedhus
Kulit Mentah: Kulit Wedhus
1. Preparation Kanggo Tanning
Pengelompokan → Timbangan → Pra-Rendaman → Daging → Rendam Utama → Fleshing → Numpuk → Lukisan Kanthi Jeruk Nipis → Stewing → Pengapuran → Cuci-Flesing → Reresik → Pisah Gulu → Cuci → Reliming → Cuci
2. Proses Tanning
Timbangan → Cuci → Deliming → Softening → Pickling → Chrome Tanning → Numpuk
3. Proses Basah Sawise Tanning
Milih & Pengelompokan → Sammying → Cukur → Trimming → Timbang → Cuci → Chrome Re-Tanning → Cuci-Neutralizing → Re-Tanning → Dyeing & Lemak Liquoring → Cuci → Numpuk
4. Proses Pangatusan & Rampung
Setting Out → Hang Drying → Wetting Back → Staking → Milling → Toggling Drying → Trimming → Cleaning → Coating → Ironing → Klasifikasi → Measuring → Storage
