Parizvino, kunaka kwemakapu emapepa anoraswa pamusika haana kuenzana, njodzi yakavanzika yakakura.Vamwe vanogadzira mapepa emakapu vanowedzera fluorescent brighteners kuti vataridzike vakachena.Izvo zvinhu zvefluorescent zvinoita kuti masero ashanduke uye ave anogona kuita carcinogenic kana angopinda mumuviri.Kuti uite mukombe wemvura-uchapupu, mukati memukombe wakaputirwa ne polyethylene mvura-proof film.Polyethylene ndiyo kemikari yakachengetedzeka mukugadzira chikafu, asi kana zvinhu zvakasarudzwa zvisina kunaka kana tekinoroji yekugadzira isiri kusvika pachiyero, carbonyl makomisheni anogona kuve oxidized panguva yekunyunguduka kana kupfekedzwa polyethylene mukapu yepepa, uye carbonyl makomisheni haashanduke. zviri nyore patembiricha yekamuri, asi inogona kubuda kana kapu yepepa izere nemvura inopisa, saka vanhu vanogona kunhuwa.Kunyangwe pasina zvidzidzo zvekusimbisa iyo carbonyl makomisheni akaburitswa kubva pamakapu emapepa achaunza chero kukuvadza kumuviri wemunhu, asi kubva kune general theory kuongororwa, kutora kwenguva refu kweiyo organic compounds, inofanira kunge ichikuvadza kumuviri wemunhu.Kunyanya kunetseka ndekwekuti mamwe makapu emapepa emhando yakashata anoshandisa polyethylene yakadzokororwa, mukugadzirisa zvakare kuchava nekuchinja kwekuputika, zvichikonzera huwandu hwemakemikari anokuvadza, mukushandiswa kwekufamba kwemvura zviri nyore.Hurumende inorambidza zvakajeka kushandiswa kwepolyethylene yakagadziridzwa mukudya kwekudya, asi nekuda kwemutengo wayo wakaderera, mamwe mafekitari maduku kuchengetedza mari, achiri kushandisa zvisiri pamutemo.
Kuti uwane kapu yepepa mukugadzirwa kwemvura inodzivirira mvura, ichave yakaputirwa nehupamhi yepolyethylene isingagadziri mvura firimu pamadziro emukati.Polyethylene ikemikari yakachengeteka mukugadzira chikafu, yakaoma kunyungudika mumvura, isina chepfu, isina kunaka.Asi kana iyo yakasarudzwa isina kunaka, kana kugadzira tekinoroji, mu polyethylene inopisa kunyunguduka kana kupfekedza mukati memukombe process, inogona kuve oxidized kune carbonyl makomisheni.Mishonga yeCarbonyl haiputike nyore nyore pakupisa kwekamuri, asi inoita kana makapu emapepa akazara nemvura inopisa, saka vanhu vanonhuwa zvinosetsa.Kudya kwenguva refu kweiyi organic compound kunokuvadza hutano.Mamwe makapu emapepa emhando yakaderera akagadzirwa ne polyethylene yakadzokororwa, iyo inoburitsa akawanda anokuvadza makomisheni mukugadzirisa zvakare.Hurumende inorambidza zvakajeka kushandiswa kwepolyethylene yakagadziridzwa mukudya kwekudya, asi nekuda kwemutengo wayo wakaderera, mamwe mafekitari maduku kuchengetedza mari, achiri kushandisa zvisiri pamutemo.Parizvino, chiyero chenyika chemhando yemakapu emapepa chinongoda kuongorora ma microorganisms, asi hapana bvunzo yemakemikari, nekuti bvunzo yakanyanya kuoma uye yakaoma kuita.Mamwe makapu emapepa nekuda kwehurombo hunyoro hwemhando, zvigadzirwa zvichena zvemufananidzo pane yakakura yekuwedzera yefluorescent bleach, ine njodzi yekenza.Akataura kuti makapu emapepa anoraswa haagone kushandiswa zvakanyanya, seakanakisa nemvura inotonhora, kuderedza kuvhurika kwemakemikari anokuvadza.
Nguva yekutumira: May-24-2023