WebJun 21, 1991 · This invention relates to optical thin film flakes and coatings and inks incorporating the same and a method for making the same and more particularly to optically variable thin film flakes and inks incorporating the same used in … WebMay 26, 2024 · Optically Variable Ink (OVI) is an overt high security technology that works using color shifting ink. Under normal light, ink will shift colors, displaying two distinctly different colors depending on the viewing angle of the ID card.
Optical Variable Ink - Ink - AliExpress
WebOptical Variable Ink is widely used in security printing ,such as luxury products,wine box ,cigarate box,,currency,security document,label and so on. Product Description: Before you … WebThese pigments have a defined particle shape and carry an image or text of microscopic proportions. Using proprietary processes, we manufacture optically variable pigments that are widely used as a strong overt security component to protect the currency of more than 100 nations around the world. phone is in black and white
Apa yang dimaksud benang pengaman, optically varia...
WebAbstract. Optically Variable Inks (OVI) are printing inks containing high precision, multi-layer interference filters as their constituent pigment. They display a strong and unique color … WebThe articles generally comprise a flexible web of material and an optically variable thin film coating formed on one surface of the web. The optically variable coating is separated from the web to form optically variable thin film flakes. The flakes are disposed in ink and paint vehicles to provide optically variable inks, paints and the like. WebOptical Variable Ink (OVI), Rainbow printing (cetak pelangi) Terdapat benang pengaman; Gambar tersembunyi (Latent Image) Cetak intaglio, Kode tuna netra; Tanda air; … how do you play card game hearts