Khoom qhia txog lub hnab cowhide

Khoom qhia txog lub hnab cowhide

Ntuj tawv, tseem hu ua tawv, muaj qhov pores, tab sis qee zaum nws nyuaj rau pom ntawm qhov muag liab qab.Lwm qhov tseem ceeb ntawm cov tawv nqaij yog qhov tsis xws luag ntawm nws qhov chaw.Cov tawv nqaij uas feem ntau siv hauv tib neeg lub neej feem ntau suav nrog tawv tawv, tawv tawv, tawv tawv, tawv nees thiab tawv sheepskin.

Lub ntsej muag ntawm pigskin tawv muaj puag ncig thiab tuab pores, uas txuas mus rau hauv tawv obliquely.Lub qhov yog teem nyob rau hauv peb pawg nyob rau hauv lub grain nto, tsim ib daim duab peb sab qauv.Cov nplej saum npoo tsis sib xws thiab muaj cov qauv tshwj xeeb.Tsis tas li ntawd, pigskin tawv muaj kev hnav zoo heev.Cov nplej saum npoo ntawm cov tawv nqaij nyuj yog puag ncig thiab tuab, thiab ncab rau hauv tawv vertically.Tus naj npawb ntawm cov pores yog ntau dua li ntawm cov tawv nqaij, thiab lawv tau sib npaug ntawm cov tawv nqaij.Qhov saum npoo ntawm grain yog tsis sib xws thiab ntxhib.Buffalo tawv muaj kev puas tsuaj tsis zoo tab sis muaj zog tensile siab.Cov pores ntawm cov nplej saum npoo ntawm tawv yog puag ncig thiab txuas mus rau hauv tawv vertically.Cov pores yog sib npaug thiab sib npaug ntawm cov tawv nqaij.Cov tawv yog plump thiab grain nto yog du thiab zoo.Cowhide nrhiav tau ntau yam: txheej nyuj nkaum, nyuj tawv hnab tawv nyuj, nyuj tawv khau, nyuj tawv hnab, calf tawv, noj nyuj nkaum, tawv nyuj, nyuj nkaum, nyuj nyuj nyoos, thiab lwm yam, thiab nyuj tawv fiber ntau.

Cowhide test khoom:

Kev ntsuas lub cev: tensile lub zog, elongation, tearing lub zog, tensile zog, shrinkage kub, spalling qhov siab, spalling zog, pom tseeb ntom ntawm tawv, folding ceev ntawm txheej (qhov kub thiab txias), folding ceev ntawm ib leeg tawv, dej nqus, Thaum tshav kub kub tsis kam, roj kuj, kev sib txhuam tsis kam, plaub hau yoj nplaim retardancy, thiab lwm yam. Cov khoom siv tshuaj ntsuam xyuas: pH nqi, hexavalent chromium cov ntsiab lus, formaldehyde cov ntsiab lus, txwv azo dye, tsw, iav volatile ntsiab lus, dej cov ntsiab lus thiab volatile teeb meem nyob rau hauv cowhide, thiab lwm yam. Cov khoom siv tshuaj ntsuam xyuas: kev txheeb xyuas muaj pes tsawg leeg, tshawb pom cov tshuaj lom thiab teeb meem, kev tiv thaiv ib puag ncig, kuaj azo, thiab lwm yam. Kev txiav txim siab cov ntsiab lus: formaldehyde cov ntsiab lus, hexavalent chromium, azo, hnyav hlau, PCP, TeCP, OPP, dawb fatty acid cov ntsiab lus, organic tin compounds , thiab lwm yam xim ceev ceev: xim ceev rau rubbing, dej stain, hws, lub teeb, thiab lwm yam.