Ngaba Uyazi Ngomnyama We-Sulphur?

I-sulphur black, ekwaziwa ngokuba yi-ethyl sulphur pyrimidine, yidayi yokwenziwa yendalo esetyenziswa kakhulu kumashishini okudaya, i-pigment kunye ne-inki. Kwishishini lempahla, i-sulphur black yeyona dayi iphambili yokudaya imicu ye-cellulose, efanelekileyo ngokukodwa kwimveliso emnyama yelaphu lekotoni, phakathi kwayo

I-Sulphur Emnyama ElulwelokwayeIbhlowu yeSulphur 7zezona zixhaphakileyo. Inkqubo yokudaya idayi yesalfure yile: okokuqala, idayi yesalfure iyancitshiswa ize ichithwe ibe yisisombululo sedayi, kwaye iileaches zokudaya ezenziweyo zifunxwa ziifayibha zecellulose, zize emva koko ziphathwe nge-air oxidation ukuze iifayibha zecellulose zibonise umbala ofunekayo.

Ukudaya idayi emnyama yesulfur kufuna i-sodium sulfide njenge-arhente yokunciphisa ukunyibilikisa idayi. Iidayi ze-sulfide ngokwazo azinyibiliki emanzini, kwaye xa kusetyenziswa ii-arhente zokunciphisa i-alkaline, iidayi zinokuncitshiswa zibe yi-leucochromes kwaye zinyibilike emanzini, kwaye iityuwa ze-leucochromic sodium ezenziweyo zinokufunxwa ziifayibha. Kwinkqubo yokusebenza yokwenyani, inkqubo yokunciphisa nokunyibilikisa iidayi ze-sulfide kufuneka yenziwe ngokupheleleyo, kwaye izinga lokongeza kufuneka licothe kwaye lifane. Emva kokongeza idayi, yibilise kwaye uyidaye imizuzu eli-10, uze emva koko wongeze ityuwa kancinci nangokulinganayo ukukhuthaza ukudaya. Qiniseka ukuba uyicoca kakuhle emva kokudaya ukuthintela idayi eseleyo ekuchaphazeleni isiphumo sokudaya. Ukongeza, emva kokudaya, musa ukuphola ngequbuliso ukuthintela "iiprinti zeentaka". Kwangaxeshanye, unyango lokulwa nokubhitya lufuna ukusetyenziswa kwezithambisi ngexesha lenkqubo yokudaya.

Ukongeza, i-sulphur black ingasetyenziselwa ukuvelisa imibala, ngenxa yokumelana kwayo nokukhanya okuhle kunye nokumelana nemozulu, ngoko ke isetyenziswa kakhulu kushishino lwemibala. Kwimveliso ye-inki, ukusetyenziswa kwe-sulphur black nako kubanzi kakhulu, njenge-inki kunye ne-inki yokushicilela, umbala wayo unzulu, unokubonelela ngesiphumo esihle sokuprinta, kwaye unokumelana namanzi, ukumelana nokuguguleka kunye nokumelana neekhemikhali.