Menene fata-fata?

Eco-fata samfurin fata ne wanda alamomin muhalli suka cika buƙatun ka'idojin muhalli. Fata ce ta wucin gadi da ake yin ta ta hanyar murƙushe fata mai ɓarna, tarkace da kuma zubar da fata, sannan a ƙara manne da dannawa. Nasa ne na ƙarni na uku na samfuran. Eco-fata yana buƙatar cika ƙa'idodin da jihar ta tsara, gami da abubuwa huɗu: formaldehyde kyauta, abun ciki na chromium hexavalent, rini na azo da aka haramta da abun cikin pentachlorophenol. 1. Free formaldehyde: Idan ba a cire shi gaba daya ba, zai haifar da babbar illa ga kwayoyin halittar dan Adam har ma yana haifar da cutar daji. Ma'auni shine: abun ciki bai wuce 75ppm ba. 2. Hexavalent chromium: Chromium na iya sa fata ta yi laushi da na roba. Ya wanzu a cikin nau'i biyu: trivalent chromium da hexavalent chromium. Trivalent chromium ba shi da lahani. Yawan chromium hexavalent na iya lalata jinin ɗan adam. Dole ne abun ciki ya zama ƙasa da 3ppm, kuma TeCP bai wuce 0.5ppm ba. 3. Rini na Azo da aka haramta: Azo wani rini ne na roba wanda ke samar da amines masu kamshi bayan saduwa da fata, wanda ke haifar da ciwon daji, don haka wannan rini na roba ya haramta. 4. Abubuwan da ke cikin Pentachlorophenol: Yana da mahimmancin kiyayewa, mai guba, kuma yana iya haifar da nakasar halittu da ciwon daji. Abubuwan da ke cikin wannan abu a cikin samfuran fata an ƙayyade su zama 5ppm, kuma mafi ƙaƙƙarfan ma'auni shine cewa abun cikin zai iya zama ƙasa da 0.5ppm kawai.