Ọ chọrọ ọtụtụ ọgwụgwọ kemịkalụ na igwe zuru ezu site na mkpuchi raw ruo akpụkpọ anụ agwụla, n'ozuzu chọrọ ịgafe usoro ọrụ 30-50. A na-ekewakarị n'ime ụzọ anọ: nkwadebe maka tanning, usoro tanning, usoro mmiri mgbe tanning na ihicha & ịmecha usoro.
A. Enyi akpụkpọ ụkwụ Upper Akpụkpọ anụ Usoro
Ezobe Raw: Ekpuchi ehi nnu nnu
1. Nkwadebe maka Tanning
Ịkọkọ → Ịtụ → Ịba mbụ → Anụ ahụ → Isi-mikpu → Ịtụ → Liming → Anụ ahụ → gbawara n'olu
2. Usoro tanning
Na-atụ → ịsa → Deliming → ime nro → pickling → Chrome tanning → stacking
3. Usoro mmiri mgbe tanning gasịrị
Ịhọrọ & Ịkekọta → Sammying → Nkewa → Akpụcha → Mkpụcha → Ịtu → Ịsa → Chrome re-tanning → Neutralize → Re-tanning → Ịjiji & Abụba Liquoring → Ịsa → Stacking
4. Usoro ikpocha & imecha
Ntọala → Ịkpọ nkụ → Stewing → Hang Drying → Wetting Back → Staking → Milling → Toggling Drying → Trimming → Họrọ
(1) Akpụkpọ anụ dị elu nke ọka zuru oke:Nchacha → mkpuchi → Ironing → Nhazi → nha → Nchekwa
(2) Akpụkpọ anụ dị elu emeziri:Ntugharị → Nbipu → Ndochi akọrọ → Kọwaa ihicha → Staking → Nhọrọ → Buffing → Dedusting → Ironing → mkpuchi → Embossing → Ironing → Nhazi → Nleba → Nchekwa .
B. Akpụkpọ anụ ewu
Raw zoro: Akpụkpọ anụ ewu
1. Nkwadebe maka Tanning
Ịkọkọ → ịdị arọ → Mịrị amị → Anụ ahụ → Isi imi → Anụ ahụ → Stacking → Ihe osise na wayo → Stewing → Liming → Ịsa-anụ → Nhicha → gbawara n’olu → ịsa → Reliming → ịsa ahụ
2. Usoro tanning
Na-atụ → ịsa → Deliming → ime nro → pickling → Chrome tanning → stacking
3. Usoro mmiri mgbe tanning gasịrị
Ịhọrọ & Ịkekọ → Sammying → Ịcha → Ịkpụcha → Ịtụ → Ịsacha → Chrome Re-Tanning → Ịsacha-Neutralize → Re-Tanning → Ịjiji & Abụba Liquor → Ịsa → Stacking
4. Usoro ikpocha & imecha
Ntọlite → Kọwaa ihicha → Wetting Back → Staking → Milling → Toggling Drying → Trimming → Cleaning → Coating → Ironing → Nhazi → Nleba → Nchekwa.
