Fluorescent whitening agent ke mofuta oa motsoako oa tlhaho o ka ntlafatsang bosoeu ba masela a fiber le pampiri, e tsejoang hape e le optical whitening agent le fluorescent whitening agent.Masela, joalo-joalo hangata a mosehla ka lebaka la ho kenyelletsa litšila tse mebala-bala, 'me bleaching ea lik'hemik'hale e ne e sebelisoa ho li senya nakong e fetileng.Mokhoa oa ho kenyelletsa moemeli oa ho soeufatsa sehlahisoa o se o amohetsoe, 'me mosebetsi oa eona ke ho fetolela mahlaseli a sa bonahaleng a ultraviolet a monngoang ke sehlahisoa hore e be mahlaseli a fluorescent a putsoa-violet, a tlatselletsang mahlaseli a pele a mosehla mme a fetoha leseli le lesoeu, e ntlafatsa bokgoni ba sehlahiswa ba ho mamella kganya ya letsatsi.ea bosoeu.Lisebelisoa tse khanyang li 'nile tsa sebelisoa haholo masela, pampiri, phofo ea ho hlatsoa, sesepa, rabara, polasetiki, li-pigments le lipente.
Li-brighteners kaofela li na le litsamaiso tsa cyclic conjugated sebopeho sa lik'hemik'hale, joalo ka: li-derivatives tsa stilbene, derivatives tsa phenylpyrazoline, derivatives ea benzothiazole, derivatives ea benzimidazole, derivatives ea coumarin le derivatives ea Naphthalimide, joalo-joalo, tseo har'a tsona lihlahisoa tse kholo li nang le lihlahisoa.Sebelisa mekhoa le thepa ho arola li-lighteners li ka aroloa ka mefuta e mene:
Letoto le bua ka li-fluorescent whitening agents tse ka hlahisang cations ka tharollo e nang le metsi.E loketse ho soeufala ha likhoele tsa acrylic.B series optical brighteners e loketse ho khantša likhoele tsa cellulose.C letoto le bua ka mofuta oa fluorescent whitening agent e qhalakantsoeng ka bateng ea dae ka pel'a dispersant, e loketseng ho soeufala ha polyester le likhoele tse ling tsa hydrophobic.Letoto la D le bua ka moemeli oa bosoeu ba fluorescent o loketseng fiber ea protheine le nylon.Ho latela sebopeho sa lik'hemik'hale, lisebelisoa tse tšoeu li ka aroloa ka mekhahlelo e mehlano: ① mofuta oa stilbene, o sebelisoang ka fiber ea k'hothone le likhoele tse ling tsa maiketsetso, ho etsa pampiri, ho etsa sesepa le liindasteri tse ling, ka fluorescence e putsoa;② mofuta oa coumarin, o nang le monko o monate Sebopeho sa motheo sa linaoa ketone, se sebelisoang ka polasetiki ea polyvinyl chloride, joalo-joalo, se na le fluorescence e putsoa e matla;③ mofuta oa pyrazoline, o sebelisetsoang boea, polyamide, likhoele tsa acrylic le likhoele tse ling, tse nang le fluorescence e tala;④ mofuta oa benzoxazine, ka Bakeng sa likhoele tsa acrylic le lipolasetiki tse ling joalo ka polyvinyl chloride le polystyrene, e na le fluorescence e khubelu;⑤phthalimide mofuta, bakeng sa polyester, acrylic, nylon le likhoele tse ling, tse nang le fluorescence e putsoa.E ka holimo ke lihlopha tsa li-whitening agents.Ha bareki ba khetha li-agent tse soeufatsang, ba lokela ho qala ho utloisisa lihlahisoa tsa bona, e le hore ba ka khetha moemeli ea nepahetseng oa bosoeu.Hape bareki ba lokela ho tseba hore ha ba sebelisa li-whitening agents, li-whitening agents li na le mebala e khanyang feela le e tlatsanang, 'me ha e khone ho nkela bleaching ea lik'hemik'hale sebaka.Ka hona, taba e mebala e tšoaroa ka ho toba ka moemeli o mosoeu ntle le bleaching, 'me phello e tšoeu e ke ke ea fumanoa ka ho feletseng.'Me moemeli oa whitening ha a soeufetse, empa o na le mahloriso a itseng a saturation.Ho feta tekanyo e itseng e tsitsitseng ea moeli, eseng feela ha ho na phello e tšoeu, empa hape e mosehla.
Nako ea poso: Jan-24-2022