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Uruganda rwirabura rwubushinwa
Ibiranga ibicuruzwa: Umukara wa sufuru ntushobora gushonga mumazi cyangwa Ethanol, igaragara nkicyatsi-umukara mugisubizo cya sodium sulfide, igaragara nkubururu iyo ishyize soda ya caustic mugisubizo cyumukara wa sulfure, kandi igaragara nkicyatsi kibisi hamwe na aside hydrochloric Ni miniature s .. .Soma byinshi -
Amazi yumukara BR ntashonga mumazi, Uburyo bwo gusiga irangi
Denim imyenda irangi hamwe na Sulfure Black BR irazwi cyane.Ibikoresho byo gusiga amarangi dukoresha bifata uburyo bwo gukomeza gucapa no gusiga irangi ryintambara, kandi umusaruro urakuze.Amazi yumukara BR ntashonga mumazi, ariko, irashobora gushonga muri ...Soma byinshi -
Uburyo bwo gukora nibiranga indigo ubururu
Ikoreshwa ryirangi rya indigo rifite amateka yimyaka irenga 5000 kandi rifatwa nkirangi rya kera. Uruganda rwacu ubu rukoresha ibikoresho bigezweho hamwe nikoranabuhanga ribyara umusaruro kugirango ubyare ubururu bwa indigo, kugirango tumenye neza ko ibicuruzwa byubururu bwa indigo bifite ubuziranenge bwiza , ...Soma byinshi
