The types of inks suitable for printing long-term heat-resistant label paper mainly include solvent-based inks, water-based inks, UV inks and so on. The following is a detailed description of these ink types:
First, solvent-based ink
Features: Solvent-based ink through the evaporation of solvent to cure the pigment, with fast drying, strong adhesion, scrubbing resistance and light, water, acid and alkali resistance and other advantages. It is suitable for printing labels with high demand, such as cosmetics, food and pharmaceutical labels. However, solvent-based inks also have some drawbacks, such as greater environmental pollution, flammable and explosive, volatile.
Composition: Solvent-based inks are mainly composed of resins, pigments, solvents and some auxiliaries. Among them, the solvent plays a role in dissolving the resin and adjusting the rheological properties of the ink.
Second, water-based ink
Characteristics: Water-based ink is an environmentally friendly printing ink developed in recent years, using water as a solvent instead of traditional organic solvents for printing. It has the characteristics of environmental protection, non-toxic, tasteless, non-flammable, etc., and is suitable for printing packaging cartons and some labels with high environmental requirements, such as food labels. However, the drying time of water-based inks is longer, which is not as fast as that of solvent-based inks, and it also requires higher absorption of paper.
Composition: Water-based ink is composed of resin, pigment, additives and water.
Third, UV ink
Features: UV ink is a kind of ink cured by ultraviolet radiation, with fast drying speed, not easy to stick, bright color, scratch resistance and good chemical resistance. It is suitable for printing labels on some special materials, such as plastic bottles, metal surfaces, etc.
Composition: UV ink is composed of photosensitive resins, pigments, additives, etc., and its curing process is to form a solid resin in a few seconds through ultraviolet irradiation.
In addition to the above common ink types, there are some special inks that are also suitable for the printing of long-acting three heat-resistant label paper, such as heat-sensitive color-changing anti-counterfeiting ink, fluorescent ink, etc. These inks have special functions and effects, which can meet the customized needs of different customers.
When selecting ink, enterprises need to comprehensively consider the performance, environmental protection, cost and printing effect of the ink to ensure the quality and market competitiveness of the final product. At the same time, with the continuous progress of technology and the constant change of the market, enterprises should also actively pay attention to the development and application trend of new ink in order to adjust the production strategy and product structure in a timely manner.