Maemong a tšebeliso ea letsatsi le letsatsi, mohlomong batho ha ba tloaelane le lentsoe "li-brighteners tse khanyang". Ho tloha liaparong tse tšoeu joaloka lehloa ho ea lihlahisoa tsa pampiri tse khanyang le tse hloekileng, li-brighteners tse khanyang li 'nile tsa etsa boselamose ba tsona ka khutso. Haufinyane tjena, sehlahisoa sena sa lik'hemik'hale se fetohile setsi sa indasteri hape.
Ha e kena setsing sa ho hatisa le ho daea masela, meqolo ea masela a mebala e tala e fetoha khanya e tšoeu e benyang hang-hang ka mor'a ho feta lits'ebetsong tse itseng. Sephiri se ho li-brighteners tse kentsoeng ka nepo tsa fluorescent. Joaloka sehlomathiso se sebetsang, e ka monya leseli le sa bonahaleng la ultraviolet 'me ea le fetola leseli le leputsoa le bonahalang, ebe le tsoakana le leseli le mosehla la pele la lesela, e leng se etsang hore ponahalo e be tšoeu le e khanyang. Lilemong tsa morao tjena, ha indasteri ea masela e ntse e ea tlhahisong e phahameng le e hloekisitsoeng, taolo ea boleng ba li-brighteners tse khanyang e se e le thata le ho feta. Li-brighteners tse khahlang tikoloho li qalile ho hlaha. Mefuta eo e ka bang le likotsi tse ka bang teng tikolohong nakong e fetileng e ntse e felisoa butle-butle, e nkeloa sebaka ke lihlahisoa tse ncha tse bolang 'me li baka tšilafalo e fokolang ea metsi.
Tšimo ea ho etsa pampiri le eona ke "sebaka sa ntoa" se seholo bakeng sa li-brighteners tse khanyang. Ho fihlela litlhoko tse phahameng tsa sechaba tsa bosoeu le sebopeho sa lihlahisoa tsa pampiri, lifeme tse kholo tsa pampiri li ntse li ntlafatsa merero ea ts'ebeliso ea li-brighteners tse khanyang. Litsebi li senotse hore tekanyo e loketseng ea li-brighteners tse khanyang ha e ntlafatse ponahalo ea pampiri feela empa hape e ntlafatsa bokhoni ba ho hatisoa ha pampiri ho isa bohōleng bo itseng, e leng se etsang hore enke e khomarele ka ho lekana le mebala e be e hlakileng haholoanyane.
Leha ho le jwalo, ntshetsopele ya di-brighteners tse kganyang letsatsi le letsatsi ha e so tsamaye hantle. Dihlahisweng tsa dikhemikhale tsa letsatsi le letsatsi, haholoholo tse amanang haufi le letlalo, tse kang di-cleaner tsa sefahleho le di-cream, polokeho ya tsona e bile kgang e kgolo ka nako e telele. Ka lebaka lena, balaodi ba taolo ba ntse ba eketsa boiteko, ba matlafatsa matla a ditlhahlobo tse sa reroang, mme ba laola ka thata ho ngolwa ha dihlahiswa tsa dikhemikhale tsa letsatsi le letsatsi tse nang le di-brighteners tse kganyang letsatsi le letsatsi. Dihlopha tsa dipatlisiso tsa saense le tsona di ntse di fuputsa ka botebo tlhahisoleseding, di sebedisa dithuto tse qaqileng tsa chefo le diteko tsa ho teneha ha letlalo ho netefatsa di-brighteners tse kganyang letsatsi le letsatsi, ho hlakisa meedi pakeng tsa ditekanyo tse bolokehileng le maemo a kotsi, e le ho etsa hore dikelello tsa bareki di phutholohe.
Ha re sheba lefats'e ka bophara, Chaena e se e le mohlahisi e moholo le morekisi oa li-brighteners tse khanyang. Likhoebo tse etellang pele tsa lehae li ntse li eketsa matsete a tsona lipatlisisong le nts'etsopele khafetsa, ho tloha khethong ea lisebelisoa tsa mantlha tsa lik'hemik'hale ho ea ntlafatsong ea lits'ebetso tse ncha tsa maiketsetso, li ntse li roba li-monopolies tsa theknoloji ea kantle ho naha khafetsa, li fokotsa litšenyehelo tsa tlhahiso, le ho ntlafatsa tlholisano ea lihlahisoa. Ho ea ka lintlha tsa lekhetho, kotara e fetileng, thepa ea China e romelloang kantle ho naha ea li-brighteners tse khanyang e eketsehile ka ho feta 15% selemo le selemo, 'me lihlahisoa li rekisitsoe libakeng tse ngata tse kang Europe, United States le Asia Boroa-bochabela. Ha e ntse e fumana sebaka se tiileng 'marakeng oa machaba, e boetse e tsamaisitse nts'etsopele e kopanetsoeng ea liketane tsa indasteri tse holimo le tse tlase, e kenya matla a macha indastering ea lik'hemik'hale.
Ho ka boleloa esale pele hore ka ho pheta-pheta theknoloji le ho ntlafatsa tšebeliso, li-brighteners tse khanyang li tla bula menyetla e mengata ea ts'ebeliso tlas'a mohopolo oa ho khomarela ka tieo litekanyetso tsa boleng le polokeho, li bonesa likarolo tsohle tsa maphelo a rona khafetsa le ho ngola khaolo e ncha bakeng sa indasteri.
Nako ea poso: Tshitwe-26-2024
