Nsalu yopanda madzi ya polypropylene yosalukidwa ndiyomwe imagwiritsidwa ntchito kwambiri, ndipo magwiridwe ake osalowa madzi nthawi zonse akhala akudetsa nkhawa anthu. Muzochita zothandiza, ogwiritsa ntchito amatha kusankha njira zosiyanasiyana zochizira madzi malinga ndi zosowa zawo zenizeni kuti akwaniritse zosowa zawo.
Nsalu za polypropylene zosalukidwa zimatchedwanso "nsalu yamatabwa yopanda nsalu" chifukwa cha kupanga kwake kosapanga kukhala kofanana ndi matabwa a fiberboard. Nsalu za polypropylene zopanda nsalu zili ndi ubwino wopepuka, kukana madzi, kukana dzimbiri, komanso zinthu zabwino zowononga mabakiteriya, ndipo zimagwiritsidwa ntchito kwambiri m'minda monga mankhwala, ukhondo, nsalu zapakhomo, ndi zomangamanga.
Chifukwa chakuti nsalu za polypropylene zopanda nsalu zimapangidwa kudzera muukadaulo wosalukidwa, pamwamba pake pamakhala mawonekedwe otseguka a ulusi ndipo amatha kulowetsa chinyezi. Choncho, ntchito yopanda madzi ya nsalu ya polypropylene yopanda nsalu yokha ndiyosauka.
Komabe, muzogwiritsira ntchito, pofuna kupititsa patsogolo ntchito yake yopanda madzi, opanga nthawi zambiri amawonjezera otetezera madzi ndi zipangizo zina kuti athetse nsalu zopanda nsalu za polypropylene. Zowonjezerazi zimatha kudzaza ma pores mumtundu wosanjikiza wa ulusi, kupanga chotchinga cholimba ndikukwaniritsa bwino madzi.
1. Onjezerani wothandizira madzi. Zomwe zimagwiritsidwa ntchito kwambiri poletsa madzi zimaphatikizapo zinc oxide, aluminium oxide, ndi zina zotere, zomwe zitha kugulidwa kudzera m'mafakitale apulasitiki kapena mankhwala.
2. Sinthani mawonekedwe a ulusi wa nsalu zopanda nsalu. Mphamvu yopanda madzi ya nsalu yopanda nsalu imatha kusinthidwa mwakusintha mawonekedwe ake a ulusi. Mwachitsanzo, kugwiritsa ntchito njira monga kuumba mpweya wotentha kuphatikizira ulusi munsalu ya polypropylene yopanda nsalu kukhala yonse kumatha kuwonjezera mphamvu zake ndikuwongolera magwiridwe ake osalowa madzi.
3. Gwiritsani ntchito zida zophatikizika. Kuphatikiza nsalu zopanda nsalu ndi zinthu zina zopanda madzi zimathanso kupeza zotsatira zabwino zamadzi. Mwachitsanzo, zida zophatikizika zophatikizidwa ndi mafilimu a polyurethane zimatha kusunga zabwino za nsalu zopanda nsalu za polypropylene ndikuwonjezera magwiridwe awo osalowa madzi.