#1 Dab tsi yog optical brighteners?
Raws li lub teb chaws tus qauv GB/T 6687-2006 "Terminology of Dyes", fluorescent whitening agent yog fluorescent dye uas tuaj yeem ua rau lub teeb xiav thiab ntshav liab nyob rau hauv UV irradiation, ua tiav lub teeb daj ntawm lub substrate thiab muaj cov nyhuv whitening.
Fluorescent whitening agents tsis yog ib yam khoom, tab sis ib lo lus dav dav rau ib pawg loj ntawm cov khoom uas tuaj yeem tawm fluorescence thiab muaj cov nyhuv whitening, npog ntau cov tebchaw. Muaj ze li ntawm 400 fluorescent whitening agents nrog rau lub chaw sau npe, thiab tom qab xyoo ntawm kev xyaum, tsawg dua 100 tseem nyob rau hauv ntau lawm. Ntawm lawv, raws li niam txiv cov qauv tshuaj, nws tuaj yeem muab faib ua triazine aminostilbene hom, pyrazoline type, naphthalimide type, styrene biphenyl type, benzoxazole type, coumarin type.
#2 Fluorescent khoom & optical brighteners
Muaj ntau yam khoom uas tuaj yeem ua rau muaj kev cuam tshuam fluorescence nyob rau hauv UV teeb irradiation, xws li qee cov vitamins, amino acids, benzene rings, thiab lwm yam. Ntau yam khoom noj kuj muaj cov tshuaj fluorescence, xws li kua ntses, Pu'er tshuaj yej, Baijiu, kas fes thiab lwm yam. fermented zaub mov. Feem ntau cov nroj tsuag rho tawm, xws li flavonoids thiab ginseng, kuj muaj cov tshuaj fluorescence. Qee cov nroj tsuag rho tawm muaj cov tshuaj fluorescent uas yog cov khoom xyaw zoo hauv cov tshuaj pleev ib ce.
Raws li cov neeg siv khoom, thaum siv cov teeb ci ultraviolet rau kev pom kev pom, tib neeg cov yam ntxwv kuj tseem loj, thiab cov txheej txheem ultraviolet irradiation ntsuas ntsuas ntau yam tshuaj fluorescent nrog rau cov tshuaj fluorescent whitening agents, thiab tsis tuaj yeem txiav txim siab txog hom thiab cov ntsiab lus ntawm cov tshuaj fluorescent raws li kev siv fluorescence. Qhov hluav taws xob ultraviolet no muaj qhov cuam tshuam rau lub qhov muag. Nws tsis yog kev tshawb fawb los ua cov khoom lag luam fluorescent tus neeg saib xyuas tsuas yog los ntawm UV teeb irradiation, thiab kev tshawb nrhiav cov fluorescent whitening agents yuav tsum muaj kev tshawb fawb thiab cov qauv kev sim.
#3 Cov cai hauv tsev thiab txawv teb chaws
Txij li xyoo 1950 thiab 1960s, kev tshawb fawb tau ua nyob txawv teb chaws ntawm kev nyab xeeb ntawm cov tshuaj fluorescent whitening agents. Kuj tseem muaj cov kev cai tsim nyog rau kev siv cov tshuaj fluorescent whitening agents hauv tsev thiab txawv teb chaws:
Raws li Tsoom Fwv Teb Chaws Txoj Cai (CFR), fluorescent whitening agents tuaj yeem siv los ua cov khoom noj tsis ncaj, thiab qee cov fluorescent whitening agents raug tso cai siv rau hauv cov thawv ntim khoom noj, nrog rau cov ntawv tsis muaj coated thiab cardboard, tab sis muaj kev txwv ntawm qhov siab tshaj plaws. tus nqi ntxiv.
Lub EU cov lus qhia txog cov khoom yas npaj los mus rau hauv kev sib cuag nrog cov zaub mov kuj qhia txog hom fluorescent whitening agents uas siv tau thiab muab cov nyiaj tso cai.
Tsis muaj kev txwv rau kev siv cov tshuaj fluorescent whitening agents hauv European cov khoom ntim khoom kom zoo nkauj.
• Lub International Cosmetic Bottle Raw Material Dictionary and Manual (12th Edition) luam tawm los ntawm American Cosmetic and Toiletry Products and perfume Association qhia cov hom tshuaj fluorescent whitening agents uas siv tau.
Nyiv txoj cai tswj kev huv zaub mov xav kom cov fluorescent whitening agents siv rau hauv cov ntawv ntim cov khoom noj yuav tsum tsis txhob muaj kev txav mus los.
• Nws tau teev tseg hauv Taiwan, Tuam Tshoj, Tuam Tshoj tias cov khoom lag luam ntawv, khaub ncaws, daim npog ntsej muag thiab lwm yam khoom uas tiv thaiv daim tawv nqaij yuav tsum tsis txhob muaj cov tshuaj fluorescent uas tuaj yeem txav mus rau ntawm daim tawv nqaij.
Lub National Food and Drug Administration tau tshaj tawm xyoo 2015 ib tsab ntawm Kev Nyab Xeeb Kev Qhia Txog Kev Nyab Xeeb rau Tshuaj pleev ib ce, uas tsis suav nrog cov tshuaj fluorescent whitening agents hauv cov lus txwv thiab txwv. Txawm li cas los xij, nws tau hais meej meej tias cov khoom ntim uas tuaj rau hauv kev sib cuag ncaj qha nrog cov tshuaj pleev ib ce yuav tsum muaj kev nyab xeeb, yuav tsum tsis txhob hnov qab nrog cov tshuaj pleev ib ce, thiab yuav tsum tsis txhob txav los yog tso tawm cov tshuaj lom thiab ua rau muaj kev phom sij rau tib neeg kev noj qab haus huv. Tsis tas li ntawd, "Catalogue of Used Cosmetic Raw Materials (2021 Edition)" suav nrog cov khoom siv fluorescent whitening agent "Disodium Diphenylene Disulfonate (CBS)".
#4 yuav xaiv cov khoom zoo li cas
Raws li cov neeg siv khoom, tsis tas yuav raug hem los ntawm qhov hu ua "fluorescent agents" tso tawm nyob rau hauv lub teeb ultraviolet, nws muaj tsis tsuas yog hauv cov tshuaj pleev ib ce, tab sis kuj muaj cov tshuaj ntxuav tes thiab cov khoom siv hauv lub neej txhua hnub. Tsuav yog cov khoom lag luam nrog cov ntawv pov thawj tshuaj xyuas yuav los ntawm cov kev raug cai tau raug pom zoo los ntawm cov tuam tsev muaj feem xyuam rau lawv cov tshuaj ntxiv thiab ntau npaum li cas, ua tau raws li lub teb chaws cov qauv zoo, thiab raug tswj nyob rau hauv qhov chaw nyab xeeb, lawv tuaj yeem siv tau tseeb.
