Ni iyihe mahitamo yawe ya nyuma? Biobased leather-3

Uruhu rw’ubukorano cyangwa urw’ubukorano nta bugome bufite kandi rufite imyitwarire myiza. Uruhu rw’ubukorano rwitwara neza mu bijyanye no kurengera ubuzima kurusha uruhu rw’inyamaswa, ariko ruracyakozwe muri pulasitiki kandi ruracyagira ingaruka mbi.

Hari ubwoko butatu bw'uruhu rw'ubukorikori cyangwa urw'impimbano:

Uruhu rwa PU (polyurethane),
PVC (polyvinyl chloride)
bishingiye ku buzima.
Agaciro k'uruhu rw'ubukorikori ku isoko kari miliyari 30 z'amadolari y'Amerika mu 2020 kandi byitezwe ko ruzagera kuri miliyari 40 mu 2027. PU yari ifite umugabane urenga 55% mu 2019. Iterambere ryayo rishimishije riterwa n'ubwiza bw'umusaruro: ntirushobora kuvogerwa n'amazi, rworoshye kurusha PVC, kandi rworoshye kurusha uruhu nyarwo. Ishobora kozwa kandi ntigire ingaruka ku zuba ry'izuba. PU ni ubundi buryo bwiza kuruta PVC kuko idasohora dioxin mu gihe ishingiye ku binyabuzima ari yo irambye kurusha izindi zose.

Uruhu rushingiye ku binyabuzima rukozwe muri polyester polyol kandi rufite ingano isubiramo hagati ya 70% na 75%. Rufite ubuso bworoshye kandi rushobora kurwanya gushwara kurusha PU na PVC. Dushobora kwitega ko ibicuruzwa bikomoka ku ruhu rushingiye ku binyabuzima bizamuka cyane mu gihe giteganyijwe.

Ibigo byinshi ku isi byibanda ku iterambere ry’ibicuruzwa bishya birimo pulasitiki nkeya n’inganda nyinshi.
Uruhu rushingiye ku binyabuzima rukorwa mu ruvange rwa polyurethane n'ibimera (ibihingwa by'umwimerere) kandi ntirugira karubone. Ese wigeze wumva uruhu rwa cactus cyangwa inanasi? Ni urw'umwimerere kandi rushobora kwangirika mu buryo bumwe, kandi rusa neza cyane! Bamwe mu bahanga bagerageza kwirinda plastiki bagakoresha viscose ikozwe mu gishishwa cya eucalyptus. Irushaho kuba nziza. Andi masosiyete ateza imbere collagen cyangwa uruhu rukomoka ku mizi y'ibihumyo bihingwa muri laboratwari. Iyi mizi ikura ku myanda myinshi y'umwimerere kandi inzira ihindura imyanda mo ibintu bimeze nk'uruhu. Indi sosiyete itubwira ko ejo hazaza hakozwe n'ibimera, atari pulasitiki, kandi isezeranya gukora ibintu bishya.

Dufashe isoko ry'uruhu rishingiye ku binyabuzima gutera imbere!