Ngaba Uyazi NgeSulfur Black?

isulfure emnyama, ekwabizwa ngokuba yi-ethyl sulfur pyrimidine, yidayi yokwenziwa kwezinto eziphilayo esetyenziswa kakhulu ekudayeni, kwimizi-mveliso ye-pigment kunye ne-inki. Kumzi mveliso weempahla, isalfure emnyama yeyona dayi iphambili yokudaya imicu ye-cellulose, elungele kakhulu iimveliso ezimnyama zelaphu lomqhaphu, phakathi kwazo.

Ulwelo lweSulfur emnyamakwayeSulfur Blue 7zezona zixhaphakileyo. Inkqubo yokudaya idayi yesulfure yile: okokuqala, idayi yesulfure iyancitshiswa kwaye inyibilika kwisisombululo sedayi, kwaye iileyile zokudaya ezenziwe zibhengezwa ngemicu ye-cellulose, kwaye emva koko ziphathwe nge-oxidation yomoya ukwenza imicu ye-cellulose ibonise umbala ofunekayo.

I-Sulfur black dyeing idinga i-sodium sulfide njenge-agent yokunciphisa ukunyibilikisa idayi. Idayi zeSulfidi ngokwazo azinakunyibilika emanzini, kwaye xa kusetyenziswa i-alkaline ekunciphiseni iidayi, iidayi zinokuncitshiswa zibe yi-leucochromes kwaye zinyibilike emanzini, kwaye i-leucochromic sodium isalts inokubhengezwa ngefibers. Kwinkqubo yangempela yokusebenza, inkqubo yokunciphisa kunye nokuchithwa kwedayi ye-sulfide kufuneka iqhutywe ngokupheleleyo, kwaye isantya sokongeza kufuneka sihambe kwaye sifane. Emva kokufaka idayi, bilisa kwaye udaye imizuzu eyi-10, kwaye ngokukhawuleza kwaye ngokulinganayo wongeze ityuwa ukukhuthaza ukudaya. Qinisekisa ukuba uhlambulule ngokucokisekileyo emva kokudaya ukuze uthintele idayi eshiyekileyo ukuba ingachaphazeli umphumo wokudaya. Ukongeza, emva kokudaya, musa ukupholisa ngokukhawuleza ukukhusela "iimpuphu zeentaka". Ngelo xesha, unyango oluchasene ne-brittleness lufuna ukusetyenziswa kwezinto ezithambileyo ngexesha lenkqubo yokudaya.

Ukongeza, i-sulphur emnyama ingasetyenziselwa ukwenza i-pigments, ngenxa yokumelana nokukhanya okuhle kunye nokumelana nemozulu, ngoko isetyenziswa kakhulu kwishishini le-pigment. Kwimveliso ye-inki, ukusetyenziswa kwesulfure emnyama kubanzi kakhulu, njenge-inki kunye ne-inki yokushicilela, umbala wayo unzulu, unokubonelela ngefuthe elihle lokuprinta, kwaye unokumelana namanzi, ukumelana nokunxiba kunye nokuxhathisa imichiza.