Bitewe nigihe kirekire kandi isa neza, uruhu rwamye ari amahitamo azwi kumyambarire, ibikoresho nibikoresho. Mu myaka yashize, ariko, hagaragaye umunywanyi mushya mu ruhu rwa PU. Ariko uruhu rwa PU ni ubuhe? Bitandukaniye he n'uruhu nyarwo? Muri iyi ngingo, tuzibira mubiranga no gutandukanya byombi.
Uruhu rwa PU, bizwi kandi nk'uruhu rwa sintetike cyangwa uruhu rwa faux, bisobanura uruhu rwa polyurethane. Nibikoresho bya sintetike bigana isura kandi ukumva uruhu nyarwo. Bitandukanye n’uruhu nyarwo, rukozwe mu mpu z’inyamaswa, uruhu rwa PU rukozwe hifashishijwe uruvange rwa polyurethane rushyirwa mu bikoresho fatizo (ubusanzwe ni umwenda nka polyester cyangwa ipamba). Iyi coating irema imyenda isa cyane nimpu nyayo.
Kimwe mu byiza byingenzi byuruhu rwa PU nuburyo buhendutse.Bitewe nuburyo bwo gukora no kubura uruhu rwinyamanswa, uruhu rwa PU ruhendutse kubyara kuruta uruhu nyarwo. Ibyo bituma uhitamo hejuru kubantu bashaka isura nziza kandi bakumva uruhu batishyuye igiciro cyinshi.
Byongeye kandi, uruhu rwa PU rufite imbaraga zo kurwanya amazi no guhangana ugereranije nuruhu nyarwo. Mubisanzwe bifatwa nkigihe kirekire kandi byoroshye kubungabunga kuko gishobora guhanagurwa nigitambaro gitose. Uruhu nyarwo, rusaba ubwitonzi bwihariye hamwe na conditioning kugirango rukomeze kuba rwiza.
Ariko, hariho kandi itandukaniro rikomeye hagati yuruhu rwa PU nimpu nyayo. Itandukaniro rigaragara cyane ni ibihimbano byabo. Uruhu nyarwo rukomoka ku ruhu rwinyamaswa kandi ni ibintu bisanzwe. Ifite imiterere yihariye nko guhumeka, guhinduka no gusaza neza mugihe. Igice cyose cyuruhu rwukuri gifite ibimenyetso byihariye, byiyongera kubwiza no kumiterere.
Ibinyuranye, uruhu rwa PU ntirubura iyo miterere karemano. Ntabwo ihumeka kandi ntabwo yumva yoroshye ugereranije nimpu nyayo. Igihe kirenze, uruhu rwa PU rushobora kandi kwerekana ibimenyetso byo guturika cyangwa gukuramo imyenda. Ku ruhu nyarwo, ntabwo arikibazo kuko rutezimbere patina yongerera ubwiza nubwiza bwayo.
Ikindi gitekerezo cyingenzi muguhitamo hagati yuruhu rwa PU nimpu nyayo ni irambye. Uruhu rwa PU akenshi rufatwa nkibidukikije byangiza ibidukikije kuko bidasaba guhisha inyamaswa. Irashobora gukorwa muburyo bugenzurwa kandi burambye. Nyamara, uruhu nyarwo rwateje impungenge imibereho y’inyamaswa n’ingaruka ku bidukikije ku nganda z’inyama.
Mu gusoza, uruhu rwa PU nubundi buryo bwoguhindura uruhu nyarwo rwagenewe kwigana isura yarwo. Nibihendutse, birinda amazi kandi byoroshye kubungabunga. Uruhu nyarwo, kurundi ruhande, rufite imico yihariye nko guhumeka no gusaza neza. Ubwanyuma, guhitamo byombi biva mubyifuzo byawe bwite, bije, hamwe no gutekereza kubitekerezo.
Igihe cyo kohereza: Jul-06-2023