Photochromic dyes yog chav kawm tshiab ntawm kev ua haujlwm dyes.Cov tshuaj tsim los ntawm dissolving xws li dyes nyob rau hauv cov organic solvents yog xim tsis muaj xim nyob rau hauv tsev thaum lub concentration yog tej yam.Sab nraum zoov, qhov kev daws teeb meem yuav maj mam tsim cov xim tshwj xeeb thaum raug tshav ntuj.Muab nws rov qab rau hauv tsev (los yog hauv qhov chaw tsaus) thiab xim yuav maj mam ploj mus.Cov tshuaj yog coated rau ntau yam substrates (xws li; ntawv, yas los yog phab ntsa), thaum cov kuab tshuaj evaporates, nws muaj peev xwm tawm ib tug invisible imprint rau lub substrate, raug rau lub teeb muaj zog los yog tshav ntuj, lub imprint xim yuav tshwm.
Post lub sij hawm: Aug-05-2022