Cysteamine (Cysteamine, CS), tseem hu ua β-merhydrylethylamine, dawb crystalline hmoov, melting point 99 ~ 100 ℃, me ntsis tsw, soluble nyob rau hauv dej thiab cawv, alkaline cov tshuaj tiv thaiv. Vim tias nws muaj sulfhydryl thiab amino pawg, nws muaj ntau yam kev ua haujlwm lom neeg. Nws yog ib qho tshuaj lom neeg lom neeg hauv cov tsiaj thiab muaj cov teebmeem physiological tseem ceeb. Cysteamine molecules ntawm thiol, yooj yim oxidation cua ua disulfide feem ntau siv nws cov hydrochloride (CysteamineHydrochloride, CSH) los hloov nws. CSH tshuaj muaj zog ruaj khov, khoom ntawm chav tsev kub, muaj zog hygroscopicity, yooj yim oxidation ntawm qhov kub thiab txias, melting point ntawm 70.2 ~ 70.7 ℃.

CS thiab nws cov hydrochloride (CSH) yog cov khoom xyaw nruab nrab hauv qee cov tshuaj pleev ib ce, nrog rau cov plaub hau perm txo tus neeg sawv cev, thiab tuaj yeem siv rau hauv kev tsim khoom ntawm lwm cov tshuaj pleev ib ce plaub hau.

Nyob rau hauv daim ntawv thov ntawm cov plaub hau perms, CSH feem ntau luv luv rau CA (cysteamine hydrochloride).

Tus nqi logP qhia tias cysteamine hydrochloride (CA) yog lipophilic thiab nkag mus rau qhov chaw ntawm hydrophobic proteins hauv cov plaub hau (octamer/microfibril).

Cysteamine hydrochloride (CA) vim hais tias nws muaj sulfhydryl active, nws lov cov disulfide daim ntawv cog lus nyob rau hauv cov plaub hau, cystine txo mus rau cysteine ??muaj sulfhydryl, cov plaub hau yuav mos, khoov thiab deformed nrog cov plaub hau curler, thiab ces oxidized los ntawm oxidizing tus neeg saib xyuas kom nws mos kom ua tau ib tug zoo curling nyhuv. Nws qhov tsis zoo yog tias nws yuav tsum muaj purity siab, muaj ntxhiab tsw tshwj xeeb, thiab muaj cov nyhuv stimulating ntawm daim tawv nqaij. Vim tias nws yog khaus rau ntawm daim tawv nqaij, Nyiv txoj cai lij choj hais tias CA yog nyob rau hauv cov ntsiab lus tsis tshua muaj siab (feem ntau teeb tsa hauv qhov nruab nrab qis alkali ntau dua), vim nws qhov tshwj xeeb kev teeb tsa, kom cov plaub hau hnyav qis dua, kom cov plaub hau yog mos thiab noj qab nyob zoo!

Qhov txo qis ntawm cysteamine hydrochloride (CA) yog siab dua li ntawm thioglycollic acid, yog li nws qhia tau hais tias curling zoo dua hauv kev ua haujlwm curling. Piv nrog rau tib lub siab PH thiab siab concentration ntawm thioglycollic acid, qhov zoo tshaj plaws ntawm kev siv cysteamine hydrochloride (CA) curly plaub hau yog tias nws tsis tas yuav tsum tau rhuab rau lub sij hawm ntev, thiab curl degree ntawm 5 feeb nrog ib tug heev alkaline thiab siab concentration cysteamine hydrochloride perm yog sib npaug rau 5 feeb ntawm kev siv thiog acid.

Cysteamine hydrochloride yog ntau yam sib xyaw nrog cov khoom siv tshuaj lom neeg thiab tuaj yeem tsim ib qho chaw ruaj khov, uas ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm cov plaub hau perms. Nws muaj kev tsim cov yeeb yaj kiab zoo thiab cov tshuaj lom neeg ua haujlwm siab, tuaj yeem tsim cov qauv sib txuas ruaj khov nrog cov keratin ntawm cov plaub hau, hloov cov qauv ntawm cov plaub hau, thiaj li ua tiav cov nyhuv ntawm perm.

Cysteamine hydrochloride perm nyob rau hauv tus txheej txheem ntawm perm, nws lub luag hauj lwm tseem ceeb yog muab ib tug tshiab crosslinking neeg sawv cev, thiab keratin ntawm cov plaub hau los tsim ib tug ruaj khov crosslinking qauv, hloov lub curl ntawm cov plaub hau. Piv nrog rau lwm cov plaub hau perms, nws qhov zoo dua yog tias nws muaj kev puas tsuaj me ntsis rau cov plaub hau, thiab cov nyhuv ntawm perm yog ntuj thiab kav ntev.