Uyazi Nge-Sulphur Black?

I-sulphur black, eyaziwa nangokuthi i-ethyl sulphur pyrimidine, iyidayi yokwenziwa ephilayo esetshenziswa kakhulu embonini yokudaya, i-pigment kanye ne-inki. Embonini yezindwangu, i-sulphur black iyidayi eyinhloko yokudaya imicu ye-cellulose, efaneleka kakhulu emikhiqizweni emnyama yezindwangu zikakotini, phakathi kwazo

I-Liquid Sulphur BlackfuthiI-Sulphur Blue 7yizona ezivame kakhulu. Inqubo yokudaya idayi yesulfure yile: okokuqala, idayi yesulfure iyancishiswa bese incibilikiswa ibe yisisombululo sedayi, bese ama-leaches okudaya akhiwe adonswa yizintambo ze-cellulose, bese ephathwa nge-oxidation yomoya ukuze imicu ye-cellulose ibonise umbala odingekayo.

Ukudaya okumnyama kwe-sulfur kudinga i-sodium sulfide njenge-ejenti yokunciphisa ukuze kuncibilikiswe udayi. Amadayi e-sulfide ngokwawo awancibiliki emanzini, futhi uma kusetshenziswa ama-alkaline reduction agents, amadayi angancibilikiswe abe yi-leucochromes futhi ancibilikiswe emanzini, kanti usawoti we-leucochromic sodium owakhiwe ungamuncwa yimicu. Enkambisweni yokusebenza yangempela, inqubo yokunciphisa nokuncibilikisa amadayi e-sulfide idinga ukwenziwa ngokugcwele, futhi izinga lokwengeza kufanele libe lincane futhi lifane. Ngemva kokufaka udayi, ubilise bese udayi imizuzu eyi-10, bese ufaka kancane kancane usawoti ngokulinganayo ukuze ukhuthaze ukudaya. Qiniseka ukuthi uhlanza kahle ngemva kokudayi ukuze uvimbele udayi osele ukuthi ungaphazamisi umphumela wokudaya. Ngaphezu kwalokho, ngemva kokudayi, ungapholi ngokuzumayo ukuze uvimbele "ukunyatheliswa kwezihlathi zezinyoni". Ngesikhathi esifanayo, ukwelashwa kokulwa nokuqhekeka kudinga ukusetshenziswa kwezithambisi ngesikhathi senqubo yokudaya.

Ngaphezu kwalokho, i-sulfur black ingasetshenziswa futhi ekwenzeni imibala, ngenxa yokumelana kwayo nokukhanya okuhle kanye nokumelana nesimo sezulu, ngakho-ke isetshenziswa kabanzi embonini yemibala. Ekukhiqizeni i-inki, ukusetshenziswa kwe-sulfur black nakho kubanzi kakhulu, njengoyinki noyinki wokunyathelisa, umbala wayo ujulile, unganikeza umphumela omuhle wokunyathelisa, futhi unokumelana namanzi, ukumelana nokuguguleka kanye nokumelana namakhemikhali.