Talking about the characteristics of several common characteristic ink applications
We are a big printing company in Shenzhen China . We offer all book publications, hardcover book printing, papercover book printing, hardcover notebook, sprial book printing, saddle stiching book printing, booklet printing,packaging box, calendars, all kinds of PVC, product brochures, notes, Children's book, stickers, all kinds of special paper color printing products, game cardand so on.
For more information please visit
http://www.joyful-printing.com. ENG only
http://www.joyful-printing.net
http://www.joyful-printing.org
email: info@joyful-printing.net
1, uv ink
The principle that the uv ink uses ultraviolet irradiation to dry the ink into a film. After the chemical reaction in the light, the photosensitive material (monomer) in the ink receives the energy of the ultraviolet light, excites and bonds with the pigment.
Uv ink is used for the outer packaging of high-end goods and the overall or partial glazing of fine prints. It can display the visual effects of bulging, wrinkles, foaming, frosting, gemstones, refraction, varnish, etc., giving people a gorgeous, solemn and elegant Sensory impression.
The UV ink dries quickly, and it usually dries in less than 10 seconds under standard UV energy. Uv ink also has excellent wear resistance, which can reach 15 million times, which is 5-6 times higher than that of general ink.
In use, you should pay attention to: use special ink roller and blanket; keep the printing workshop at 22±3 degrees Celsius; always mix the uv ink frequently in the printing, always pay attention to the water and ink balance; can not be mixed with other inks; The reflector should be installed; it should be stored in the dark below 25 degrees Celsius, and it should not be stored for a long time; it should be harmful to the printing workers, the workshop should pay attention to the exhaust, the operators should wear overalls, wear gloves and sunglasses; limit the use of UV in the inner packaging of food. ink.
There are creases when the substrate using uv ink is folded, and the price is currently higher.
2, thermochromic ink
Appearance color change form: color at low temperature, colorless at high temperature. Available colors are red, rose, peach, vermilion, orange, yellow, yellow-green, grass green, sky blue, turkey blue, blue, dark blue, black, and so on.
Temperature range setting: from -15 degrees Celsius to 75 degrees Celsius. Different temperature ranges can be set according to different product requirements. Generally, the color change temperature is set from 2 degrees Celsius to 10 degrees Celsius, and the color density gradually decreases from low temperature to high temperature until it is nearly transparent.
3, photosensitive color ink
Appearance color change form: The product printed by the photochromic ink is subjected to sunlight (ultraviolet light), and the ink absorbs sunlight (ultraviolet) energy to produce a color change; when it is exposed to sunlight (ultraviolet light), it returns to the original color.
Basic four colors: colorless - red colorless - purple colorless - blue colorless - yellow
4, luminous ink
Luminous luminescent pigments must absorb a variety of visible light to store light energy before they can automatically illuminate in the dark and can be recycled indefinitely.
Should pay attention to the use:
Neutral or weakly basic transparent resin should be used and mixed;
It is necessary to stir the raw materials at high speed, preferably in glass or ceramic containers;
The length of storage depends on the amount of moisture and should be protected against moisture. The moisture is too large, it is easy to turn black or form a hard block;
To reduce the precipitation of luminescent powder, use a high viscosity resin, or add an anti-settling agent, and mix well before use. The viscosity can be adjusted with a diluent, and heavy metal compounds cannot be used as an additive;
In order to improve the brightness and illumination time of the printed image, the printed background should be dominated by white or reflective colors;
Screen printing, in order to achieve better lighting effect, the mesh is 80-120 mesh best;