Kev phom sij ntawm Perm

Lub ntsiab ntawm cov plaub hau yog cov protein. Piv nrog rau lwm cov proteins, cov khoom ntawm cov plaub hau proteins tsis tshua muaj zog. Tab sis cov plaub hau yog rhiab heev rau boiling dej, acid, alkali, oxidant thiab reductant. Nyob rau hauv cov txheej txheem ntawm perm thiab cov plaub hau dyeing, peb yuav tsum siv ib co oxidants thiab reductants, uas yog acidic los yog alkaline tshuaj. Cov plaub hau kuj tuaj yeem raug dej vapor ntev ntev thaum lub sijhawm ua haujlwm no.

Yog li ntawd, nyob rau hauv tus txheej txheem ntawm perm thiab plaub hau dyeing, cov saum toj no yam yuav ua rau cov plaub hau puas. Qhov saum npoo ntawm cov plaub hau yog npog nrog plaub. Cov tawv nqaij me me ntawm cov plaub hau ib txwm zoo li cov ntses nplai (los yog imbricate), uas npog cov plaub hau qia nyob rau tib lub sijhawm thiab kom tiv thaiv kev ncaj ncees ntawm cov plaub hau. Ib qho stimulation sab nraud yuav ua ntej ua kev puas tsuaj rau cov plaub hau thiab tawv nqaij. Cov plaub hau cuticle ntawm ib txwm cov plaub hau yog ua tiav nyob rau hauv cov duab, zoo haum nrog cov plaub hau qia, thiab dawb ntug ntawm cov plaub hau cuticle yog du, zoo li ib tug ntses nplai. Tom qab scalding thiab dyeing, cov plaub hau me ntawm daim tawv nqaij yog cocked, thiab muaj ib tug tshwm sim ntawm de adhesion. Cov npoo ntawm qee cov plaub hau me me ntawm daim tawv nqaij yog me ntsis curled los yog serrated.