Tawv pov tseg, feem ntau yog hais txog thawj cov khoom siv rau cov ntaub ntawv pov thawj ntawm kev tsim kho. Tawv khib nyiab ntau ntau, raws li keeb kwm tuaj yeem muab faib ua tawv tsim tawm tsam dereliction, tawv cov khoom tsim nyob rau hauv qhov pib ntawm kev txiav tawm cov khoom seem thiab cov khoom siv tawv tawv; Raws li cov tawv nqaij pov tseg muaj pes tsawg leeg thiab qhov nyuaj ntawm kev siv cov ntsiab lus: 1, tsis muaj chromium tawv pov tseg xws li pluab, grey tawv crafty thiab tanning pov tseg, lwm., vim qhov yooj yim tivthaiv, siv kev sib piv yooj yim. 2, cov khib nyiab uas muaj chromium tawv xws li xiav ntub shaving tawv scraps, splitting thiab voj voog ntug pov tseg, vim yog nplua nuj nyob rau hauv chromium ntsev, siv kev sib piv nyuaj. 3, muaj dye tawv pov tseg xws li qhuav txiav ntawm tawv thiab sab ntawm cov ntaub ntawv pov tseg, tawv txiav nplhaib, lwm., vim hais tias ntxiv rau nplua nuj nyob rau hauv chromium ntsev, kuj suav nrog dyes, fatliquoring agent thiab retanning agent, xws li cov khoom siv tshuaj, ib qho nyuaj rau siv. Kev siv tawv pov tseg, yog ib lub ntsiab lus qub. Hauv 1928, cov italians yuav ua ntej ntawm tag nrho cov, cov khib nyiab uas muaj chromium tawv rau cov khoom siv tawv. Tab sis vim yog chrome puas, siv qhov kev txwv ntawm yuav tsum. Tam sim no, thawj zaug siv teb yog tseem nyob ntawm nws cov khoom tsis-woven fiber nta, ua cov ntaub ntawv basal, xws li cov tawv tawv, los yog tov nrog lwm cov ntaub ntawv fiber ntau, thaum lub sij hawm uas cov chromium thiab tsis txhim kho siv kev sib tham nrog: MAO degradation, degradation khoom ntawm kev sib cais thiab purification, lwm., nws tuaj yeem siv rau hauv cov hauv qab no: biological fermentation thiab av txias, tshuaj degradation ntawm kev npaj ntawm cov protein polypeptide, lwm. 4, nqaij residue siv cov ntaub ntawv ntawm daim tawv nqaij tom qab dej nyab rau cov nqaij ntawm cov nyiaj tau los ntawm cov nqaij slag yog zoo tu qab tso roj tau txhua xyoo ntau lawm ntawm txog 1.4 lab tonnes ntawm tawv pov tseg, nyob rau hauv ua ke mus rau ib puag ncig muaj kuab paug, cov intervening collagen thiab chromium trioxide kuj poob ntau, ua lub infinity ntawm biomass peev. Nyob rau hauv tawv pov tseg cia cov tailings loj, qee qhov yog cov khoom siv tawv, thaum twg ntau tshaj 80% ntawm collagen, Tsis tsuas yog cov nplua nuj nyob hauv cov protein thiab amino acid, Nws kuj tseem yog cov khoom siv polymer zoo heev ua ke. Vim nws cov yam ntxwv lom zem, tawv pov tseg hauv tshuaj, khoom noj khoom haus, noj zaub mov noj, kev ua liaj ua teb thiab lwm yam ntau tshaj ib pawg muaj kev siv dav dav. Rov qab thiab siv tag nrho cov khoom pov tseg thiab cov khoom pov tseg tawv tsis tsuas yog tuaj yeem muab ntau cov ntaub ntawv tshiab kev lag luam, txo kev puas tsuaj rau ib puag ncig ecological, kuj yog pab rau kev lag luam tawv ua ke rau lub sijhawm ntev heev.
