Taw qhia rau UV-Cov ntaub tiv thaiv

UV- ntaub tiv thaiv yog cov khoom siv tsim los tiv thaiv daim tawv nqaij los ntawm kev tiv thaiv UVA thiab UVB hluav taws xob; nws tseem raug hu ua UV-shielding agent. Kev tiv thaiv kev ua haujlwm ntawm cov ntaub no feem ntau yog ua tiav los ntawm kev koom ua ke UV- thaiv cov neeg ua haujlwm thaum lub sijhawm spinning. Nws yog dav categorized ua peb hom: xov paj-kev tiv thaiv, additive-kev tiv thaiv, thiab txheej-raws li kev tiv thaiv. Ntawm cov no, cov xov paj - cov txheej txheem kev tiv thaiv kev sib xyaw- uas embeds UV- thaiv cov khoom ncaj qha rau hauv cov xov paj ntawm qhov chaw- tau tshwm sim raws li kev siv thev naus laus zis tseem ceeb. kuv lub teb chaws ua raws li GB/T 18830-2023 tus qauv, uas tso cai rau cov khoom lag luam yuav tsum muaj UPF (Ultraviolet Protection Factor) tus nqi ntau dua 30 thiab UVA kis tus nqi qis dua 5% kom raug sau npe tias yog UV{19}} cov khoom tiv thaiv; Qhov kev faib tawm siab tshaj plaws raws li tus qauv no yog 50+. Siab- xov paj zoo- kev sib xyaw UV- cov ntaub tiv thaiv muaj peev xwm tswj tau lub hnub ruaj khov- kev tiv thaiv kev ua haujlwm txawm tias tom qab siv ntau pua lub tshuab ntxhua khaub ncaws.

Cov thev naus laus zis tseem ceeb suav nrog kev koom ua ke ntawm cov khoom siv tsis muaj zog-xws li zinc oxide thiab titanium dioxide- nrog rau cov organic tebchaw zoo li benzophenones. Qhov tseem ceeb, "Bingyin Yarn" thev naus laus zis tsim los ntawm Donghua University tso cai rau kev nce cov ntsiab lus ntawm titanium dioxide hauv cov xov paj mus rau 8%, yog li ua tiav UPF tus nqi siab tshaj 1000. Cov thev naus laus zis tshiab siv cov txheej txheem microencapsulation rau embed natural mint extracts, yog li xa cov kev tiv thaiv kev tiv thaiv ntau dua, kev tiv thaiv kev tiv thaiv kev tiv thaiv. khoom; cov phab ntsa ntawm cov microcapsules ntsuas tsuas yog 100 txog 200 nanometers hauv tuab. Tsis tas li ntawd, lub hnub- cov ntaub tiv thaiv uas muaj ob txoj haujlwm ua haujlwm - sib txuas cov duab photochromism (lub teeb- ntxias cov xim hloov) nrog UV shielding- kuj tau pib tshwm sim [7]. Daim ntawv thov toj roob hauv pes rau cov ntaub no yog tus cwj pwm los ntawm kev sib txawv ntawm kev siv scenarios thiab kev sib koom ua haujlwm. Lawv cov khoom siv tau nthuav dav tshaj li kev tiv thaiv hnub ci sab nraum zoov kom suav nrog ntau yam ntawm cov ntsiab lus- suav nrog cov khaub ncaws hnav thiab kev mus ncig ua si -thiab tau nce ntxiv nrog cov haujlwm ntxiv xws li tiv thaiv tshav kub, ua kom txias, thiab noo noo-wicking/ceev{18.}kev ua kom qhuav