Tib neeg tau xav tau kev tiv thaiv tshav ntuj txij thaum ub los. Kev lag luam niaj hnub sunshade fabric tau pib nrog kev tsim tshwj xeeb hauv xyoo 1990s. Nyob rau lub Tsib Hlis 1991, Tuam Tshoj thawj qhov muag dig muag kev cog qoob loo tau tshwm sim, ua tiav lub teeb pom kev zoo - kho qhov muag dig muag thiab ntsug qhov muag tsis pom ntaub, suav tias yog lub hauv paus ntawm Tuam Tshoj txoj kev lag luam sunshade fabric. Ua ntej xyoo 2000, qee lub tuam txhab lag luam hauv tsev tau pib ua tiav loj - teev cov hnub ci qhov rais npog cov ntaub.
Nyob ib ncig ntawm 2010, kev lag luam tau pib tsim lub hnub ua haujlwm-cov khaub ncaws tiv thaiv thiab ua kom muaj kev cuam tshuam hauv cov xov paj nyoos UV- tiv thaiv kev siv tshuab. Nyob rau tib lub sijhawm, lub hnub- txoj haujlwm tiv thaiv npuag tau txhim kho qhov zoo ntawm cov khoom tsim tawm hauv tsev los ntawm cov khoom siv ntshuam thiab kev hloov kho thev naus laus zis.
Nyob rau hauv xyoo tas los no, kev lag luam tau pom cov kev hloov pauv xws li kev tshwj xeeb hauv hnub ci- cov ntaub tiv thaiv, txhim kho cov xov paj ua haujlwm, thiab tsim cov ntaub siv ntau yam. Piv txwv li, qee cov thev naus laus zis nce qhov siab ntawm cov khoom siv hauv cov xov paj, txhim kho tus nqi UPF. Qee cov ntaub muaj UV tsis kam, nyias nyias, thiab muaj kev tiv thaiv tshav kub. Lwm cov ntaub sib xyaw ua ke ua kom txias thiab tiv thaiv lub hnub, lossis muaj ob txoj haujlwm ntawm "photochromic + UV shielding." Kev lag luam tab tom qhia txog kev txhim kho los ntawm ib qho kev ua haujlwm sunshade mus rau kev ua haujlwm siab thiab ntau -functionality.
