1, ink special luminous powder is divided into oily luminous powder and water-based photoluminescent powder, oily luminous powder is recommended to be used in oily ink, for water-based ink must be used now, put a long time on the caked white, lose luminous effect. Water-based luminous powder is common in water-based and oily inks, but it is slightly more expensive than oily glow in dark powder, so it is generally only used in water-based media;
2, ink selection: A, glow-in-the-dark powder added in transparent oil the best effect, colored ink can also add glow-in-the dark, but the more late at night the brightness is lower, dark color ink to increase the proportion of glow-in-the dark powder to increase the brightness. B, different printing materials should use the corresponding ink, such as metal material should use metal ink, ABS plastic material should use ABS special ink, so as to ensure that the luminous ink sticks firmly;
3, adding ratio: ink 1 kg: glow in the dark powder 300 g ~1 kg, in this range of luminous powder added more and more bright, adding too little dispersion is uneven, resulting in some products do not glow or glow when black spots;
4, mixing method: Put the prepared luminous powder in a small container, add the same amount of ink, stir evenly with wood products (remember not to stir with metal items, otherwise it will become black), so that the photo luminescent pigments is fully wet, excluding the air on the surface of the luminous powder particles, so as not to affect its dispersion. If it is necessary to adjust the color or add additives, it can be stirred at the same time, and it must be noted that there is no agglomeration phenomenon. After mixing, pour the prepared ink in proportion and stir evenly, that is, luminous ink. (Anti-settling agent can be added to prevent the bottom of luminous powder) (the ink is too thick can be appropriate to add diluent such as Tianna water to help disperse)
5, screen screen selection: generally use 80-150 mesh screen to adjust the luminous ink, there are special requirements can also choose a thinner screen, but be sure to pay attention to match the thickness of luminous powder, to ensure that luminescent powder can be printed down; If it is sprayed with luminous ink, pay attention to the size of the nozzle, so as not to block the muzzle of the photoluminescent pigment;
6, screen printing (spraying); Luminous ink is best silk-printed on the white substrate, using the reflective effect of the bottom layer to improve the luminous brightness and lingering time of luminous patterns or logos. If the substrate is not white or light-colored, it needs to be silk-screened with white or light-colored ink on the substrate, with a thickness of 0.1 ~ 0.5mm; After playing the white background, keep the surface of the product without oil stains and dust, and then stir the luminous ink evenly and start spraying (screen printing) luminous ink, the thickness is about 0.2~0.5 mm, and let it dry naturally for 40-60 minutes or dry it into luminous products.
photoluminescent powder ratio is large, pay attention to mix when using. Luminous powder should be stored in a ventilated, dry environment, pay attention to moisture, can not be used at one time luminous powder, please use a plastic bag sealed storage.
