ọja

  • Uv fluorescent pigment for anti-falsification printing

    Uv fluorescent pigment fun titẹjade egboogi-eke

    UV ẹlẹdẹ awọ ara rẹko ni awọ, ati lẹhin ti o gba agbara ti ina ultraviolet (uv-365nm tabi uv-254nm), o nyara agbara tu silẹ o si ṣe afihan ipa fifin awọ to han gbangba. Nigbati a ba yọ orisun ina kuro, o duro lẹsẹkẹsẹ ati pada si ipo alaihan atilẹba.