Lithopone ndi utoto woyera wopangidwa ndi chisakanizo cha barium sulfate ndi zinc sulfide, nthawi zambiri mu chiŵerengero cha 1:1. Chopangidwa kudzera mu njira ya mankhwala pakati pa barium sulfide ndi zinc sulfate, chinthu chosapangidwa ichi chakhala chofunikira kwambiri mu zokutira zamafakitale, mapulasitiki, ndi zodzoladzola kwa zaka zoposa zana, chifukwa cha kuyera kwake kowala, kuonekera bwino, komanso kugwiritsa ntchito bwino ndalama.
Chimodzi mwa zizindikiro zazikulu za lithopone ndi mphamvu yake yobisala kwambiri, yomwe imafanana ndi titanium dioxide m'magwiritsidwe ena, zomwe zimapangitsa kuti ikhale yoyenera kwambiri popanga zinthu zosawoneka bwino. Imakhala yolimba kwambiri ku alkalis, ngakhale kuti imakhudzidwa ndi ma acid, zomwe zimatha kuwononga kapangidwe kake. Mosiyana ndi utoto wina, lithopone simasintha mtundu wake ukagwa, zomwe zimapangitsa kuti zinthu zakunja ndi zamkati zikhale zokhazikika kwa nthawi yayitali. Kuchepa kwa mafuta ake kumawonjezeranso magwiridwe antchito ake mu utoto ndi inki, zomwe zimapangitsa kuti igwiritsidwe ntchito bwino komanso kuti iyende bwino.
Pakupanga, njira zoyeretsera za barium sulfide ndi zinc sulfate zimasakanizidwa, zomwe zimapangitsa kuti tinthu ta lithopone timene timasefedwa, kutsukidwa, kuumitsidwa, ndi kuphwanyidwa kuti tipeze kukula koyenera kwa tinthu—nthawi zambiri kuyambira 0.5 mpaka 5 micrometers. Kupera pang'ono kumeneku kumawonjezera kufalikira kwake m'magawo osiyanasiyana, kuyambira utoto wopangidwa ndi mafuta mpaka ma resini apulasitiki.
Makampani opanga utoto amadalira kwambiri lithopone popanga utoto wamkati, ma primer, ndi ma enamel, komwe amapereka maziko oyera ofanana komanso amawonjezera kuphimba. Mu pulasitiki, imagwira ntchito ngati chodzaza ndi choyeretsa muzinthu monga mapaipi a PVC, zoseweretsa, ndi ma phukusi, zomwe zimapangitsa kuti mawonekedwe ake azioneka bwino komanso kuti kapangidwe kake kakhale kolimba. Mapangidwe odzola, monga ufa wa nkhope ndi mafuta, amagwiritsa ntchito lithopone kuti ikhale yosalala komanso kuti iwonetse kuwala, zomwe zimapangitsa khungu kukhala losalala komanso lofanana.
Nthawi yotumizira: Julayi-09-2025
