Tinoziva kuti mbatya chena dzakasakara nezvinhu zvakadhindwa, sitachi yakaumbwa, uye tsanga dzinowanzobudisa chiedza cheyero, zvichiita kuti vanhu vanzwe 'yero'.Kana huwandu hwakakodzera hwefluorescent whitening agent yakawedzerwa panguva ino, izvifluorescent whitening agentsinoburitsa bhuruu kana purpsh yebhuruu mwenje mushure mekutora zvisingaonekwe ultraviolet mwaranzi, ichigadzira inowirirana ruvara neyero mwenje inotakurwa nechinhu pachayo, nokudaro ichibvisa chepakutanga "yellowing" chiitiko uye kugadzira zvipfeko uye zvakadhindwa izvo pakutanga zvaitaridzika zvechinyakare. kuoneka sechichena sechitsva (chinyorwa: kuwedzera fluorescent brighteners kune yakaumbwa starch uye zviyo hazvisi pamutemo!).Iyi ndiyo nzira yekuchenesa yefluorescent whitening agents.Zvichitaurwa zviri nyore, iyo fluorescent whitening agentCBS-Xinoshandisa optical coloring kuchena, kupenya, kana kupenya zvinhu zvichena kana zvitsvuku.Iyo haiitike chero kemikari kuita nechinhu, asi inongotsamira pane optical chiito kuwedzera kuchena kwechinhu.Naizvozvo, iyo fluorescent whitening agent CBS-X inozivikanwa zvakare se "optical whitening agent" kana "white dhayi".
Kuvepo kwefluorescence kunoreva here kuwedzerwa kwefluorescent whitening agent CBS-X?
Sezvambotaurwa pamusoro apa, fluorescence phenomenon chiitiko chemuviri chinogona kubva kune zvinongoitika zvefluorescent zvinhu, senge fluorescein mufireflies;Panogonawo kunge paine zvinhu zvakasiyana-siyana zvefluorescent zvinobva mukuumbwa kwekugadzira, senge ingi dzefluorescent, machira efluorescent, zvinyoreso zvefluorescent, mapurasitiki efluorescent, uye zvimwe zvinhu zvinofungidzirwa kuti zvinoshanda zvefluorescent zvinhu, pamwe nemagetsi ekuchenesa maajenti.Fluorescent whitening agents ingori rudzi rwakakosha rwefluorescent chinhu chine kuchena uye kupenya mhedzisiro pakati peakasiyana ezvakaoma zvinhu zvefluorescent.Nokudaro, kunyatsotaura, zvinhu zvefluorescent hazvina kuenzana nezvinopenya zvinopenya, uye kucherechedza fluorescence phenomena hazvirevi kuti kuwedzerwa kwemagetsi emagetsi !!!
Fluorescence phenomenon ≠ kuvapo kwefluorescent whitening agent CBS-X
Fluorescent brighteners inogadzira fluorescence phenomena (paiyo wavelengths chaiyo)
Kufanana nezvokudya zvinowedzera, zvakasiyana-siyana zve fluorescent zvinopenya zvakaoma.Zvinoenderana nekushandiswa, yakakamurwa kuita fluorescent kupenya kwekugadzira mapepa, mapurasitiki uye ekugadzira zvinhu, machira, madhiza, ingi, anonamira, uye zvimwe zvinoshandiswa.
Zvinoenderana nechikamu cheiyo ionic zvivakwa, fluorescent inopenya inogona zvakare kukamurwa kuita isiri ionic inopenya, anionic inopenya, cationic inopenya, uye amphoteric inopenya.
Zvinoenderana nechimiro chemakemikari, inogona kukamurwa muzvikamu zvishanu: stilbene mhando, coumarin mhando, pyrazoline mhando, benzoxazole mhando, uye phthalimide imide mhando.
Zvinoenderana nekunyungudika kwemvura, inogona kukamurwa kuita mapoka maviri: inonyungudika mumvura uye isinganyungudika.Mvura inonyungudika nefluorescent whitening agents anonyanya kushandiswa kugadzira chena mapepa, machira, detergent, uye machira edonje, nepo mvura isinganyungukirwe nefluorescent whitening agents inonyanya kushandiswa kugadzira chena zvigadzirwa semakemikari fibers nemapurasitiki.
Parizvino, kune angangoita gumi nemashanu masisitimu emakemikari uye pamusoro pe400 fluorescent inopenya.Mushure memakore ekutsvaira jecha, mamwe akatobviswa, uye iye zvino kune akawanda emhando dzinowanzoshandiswa dzichiri kugadzirwa uye kushandiswa munyika.
Nguva yekutumira: May-26-2023