Talking about the function and development of transparent ink - types and characteristics

With the increasing diversity of people's requirements for packaging, packaged cosmetics. The type of out-of-the-box work has been installed on the exterior of the package. The "color" is most likely to attract people's attention. Today, most of the packaging of merchandise on the market tends to be highly transparent, giving people a sense of glittering sparkles. The ultimate goal is to trigger consumers' desire to buy. In the field of flexible packaging there is an ink to meet the above requirements, it is a highly transparent transparent ink. In the process of using transparent ink, aluminum film or aluminum foil is often used as the bottom, the effect is very obvious, and the visual effect is also the best. Now transparent ink has been widely used in the flexible packaging industry, specifically in the high-end flexible packaging such as the food industry. In the actual use of the process often occur some quality phenomena, such as transparent ink printed pits, ink uneven, etc., which greatly reduces the expected effect, this article will be combined with the actual nature of the transparent ink and printing issues to be explained.

Transparent ink types and characteristics

Transparent ink is based on high-grade transparent paint and high-grade transparent resin as the main raw material, together with other types of additives made by fine grinding. It can be divided into two types: table printing transparent ink and inward printing (composite) transparent ink. Compared with other types of inks, transparent inks have the characteristics of high viscosity, high transparency, high brightness, bright colors, strong adhesion and strong coloring power. The fineness of the clear ink is generally less than 10urn, so its hiding power and transferability are better than other inks, but the transparent ink is not as good as the high-temperature transparent ink. When designing the packaging bag, the transparent ink is generally not present at the heat-sealing blade pressure. The transparent printing ink is generally resistant to high temperatures at about 120°C. Certain ink manufacturers, of course, have produced transparent inks that are more resistant to high temperatures. It's best not to mix the clear ink printed with different manufacturers or the clear ink in the ink. The packaging companies often think that they can be mixed when they belong to the same resin type ink. As a result, many quality problems often occur.