Nws xav tau ntau cov tshuaj ua tiav thiab kev kho kho tshuab los ntawm cov zais nyoos kom tiav tawv tawv, feem ntau yuav tsum tau dhau 30-50 ua haujlwm ua haujlwm. Feem ntau muab faib ua plaub theem: npaj ua tanning, tanning txheej txheem, cov txheej txheem ntub dej tom qab tanning thiab kom qhuav & ua tiav thiab ua tiav.
A. Cowe khau Cov Txheej Txheem Tsim Kev Tsim Txom
Raw Zawv: Cais Cow Hides
1. Npaj rau tanning
Faib → Weighing → Ua ntej-Soaking → freshing → cape-soaking → freshing → freshing caj dab
2. Tanning cov txheej txheem
Qhov hnyav → ntxuav → softening → softening → chickling → chrome tanning → stacking
3. Cov txheej txheem ntub dej tom qab tanning
Xaiv & Faib → Kwv txhiaj → sammmying → sheaming → chrome re-taning → re-tanning → re-tanning → Rawv → Rawv → Stacking
4. Kom qhuav & txheej txheem ua tiav
Chaw Tawm Tawm Hauv Lub Tshuab Nqus Qhuav → stewing → ntub dej kom qhuav → staking → Teggling Kom Qhuav → Treeling → Xaiv
(1) Cov khau ntaub puv ntoobKev ntxuav tu → txheej → ironing → coellering → cia
(2) kho cov tawv nqaij sab saud:Buffing → Dedusting → SHERT FILLING → staking → D txo → Ironing → coRoling → faib →
B. tshis tawv
Cov Khaub Ncaws Raw: Cov tawv nqaij tshis
1. Npaj rau tanning
Faib → Wease → Ua ntej no → Steaming → Stiring → Kev ntxuav tes → sprit → split → split → split → Kev ntxuav caj dab → Reliming
2. Tanning cov txheej txheem
Qhov hnyav → ntxuav → softening → softening → chickling → chrome tanning → stacking
3. Cov txheej txheem ntub dej tom qab tanning
Xaiv & Pab Pawg →Qhia Ris → Shamming → Tliming → Ntxuav → RE-NEZE → REOYEING → ROJ NE CUA DUSE XEEM
4. Kom qhuav & txheej txheem ua tiav
Chaw Tawm → Dai Kom Qhuav → WarTting Rov Qab → Tiab → Techning → Technology → TEJ TUB DAB TSI DEJ
