Dandalin giya mai launin ja PVC yana nufin sutturar kwalban filastik akan bakin kwalban. Gabaɗaya, ruwan inabin da aka rufe da abin lura da abin lura za a rufe tare da hatimin kwalban filastik a bakin kwalban bayan an kori. Aikin wannan Layer na kwalban filastik shine yafi dacewa da abin toshe kwalaba daga mory kuma ci gaba da kwalban baki mai tsabta da tsabta. Amma ga asalin wannan Layer na roba, ana iya ƙaddara cewa ya bayyana a cikin shekaru 100 zuwa 200 da suka gabata.
A farkon zamanin, masu samar da ruwan indan giya da suka kara karfi zuwa saman kwalban don hana rodents da kuma hana tsutsotsi kamar burrowing cikin kwalbar. Takaddun kwalban a wannan lokacin an yi shi da jagora. Daga baya, mutane suka fahimci cewa jagorar mai guba ne, kuma jagorancin sauran a bakin kwalban za su shiga ruwan inabin idan har lahira. A cikin 1996, Tarayyar Turai da Amurka sun samu dokar dokoki don dakatar da amfani da makasudin jagoranci. Bayan haka, iyakoki galibi aka yi da kayan, aluminium ko kayan polyethylene.
Filin kwalban filastik shine fasahar sutturar zafi, wanda aka aiwatar da shi ta atomatik ta hanyar ɗakewa ta hanyar dumama da fim ɗin filastik.
Fasali:
1. PVC Roba Kashi yana da kyakkyawan shrinkage, kuma yana iya zama da kyau a ɗaure shi a kan abin da aka kunfuka bayan zafi shrinkage, kuma ba abu mai sauƙi ba ne a kashe.
2. Capparnan kwalba na PVC na iya kawai hana ruwa mai ruwa, danshi-hujja da ƙura-hujja, amma kuma mafi kyawun kare samfurin a cikin hanyar kewaya.
3. Ya dace sosai ga kayan aikin giya da sauran samfuran.
4. Matsayin buga takardu na roba roba yana da kyau kuma a bayyane, kuma tasirin gani yana da ƙarfi, wanda ya dace da nuna darajar samfurin.
5.
Lokacin Post: Mar-14-2024