What are the inks suitable for printing three proof thermal paper?

The type of ink suitable for printing three proof thermal paper mainly depends on the specific printing effect required and the compatibility of the ink. Here are some common ink types that may be suitable for three proof thermal paper:

1、 Thermal anti-counterfeiting ink

Thermal anti-counterfeit ink can undergo color changes or fading of graphics and text under the action of heat, which makes it very suitable for printing products that require anti-counterfeit or change effects. For three proof thermal paper, if thermal anti-counterfeiting printing is needed on it, choosing thermal anti-counterfeiting ink will be a good choice. The color change temperature of this ink is usually between 34-100 ℃, and it is divided into reversible and irreversible types, which can be selected according to specific needs.

2、 UV fluorescent ink

UV fluorescent ink can emit visible fluorescence under UV light irradiation, which makes it very suitable for printing materials that require special visual effects or anti-counterfeiting labels. For three proof thermal paper, if UV fluorescent printing is needed on it, UV fluorescent ink will be a good choice. This type of ink is divided into two types: colored fluorescent ink and colorless fluorescent ink. The former can print images and text that are visible to the naked eye (but not visible under normal light and require UV irradiation to show fluorescence), while the latter is completely invisible (also requires UV irradiation to show fluorescence). In addition, the fluorescence reaction color of ink varies depending on the excitation wavelength, and the appropriate excitation wavelength and fluorescence color can be selected according to specific needs.

3、 Other ink types

In addition to the two types of inks mentioned above, there may be other types of inks that are also suitable for printing on three proof thermal paper, such as water-based inks, oil-based inks, etc. The selection of these inks mainly depends on the specific printing process, printing effect, and compatibility between the ink and the three proof thermal paper. When choosing, it is recommended to conduct sufficient testing and experimentation to ensure that the printing effect and ink adhesion, durability, and other aspects meet the requirements.

Matters needing attention

Ink compatibility: When selecting ink, it is necessary to ensure good compatibility with the coating and substrate of the three proof thermal paper to avoid problems such as poor printing and ink peeling.

Printing process: Different printing processes have different requirements for ink. Therefore, when choosing ink, specific printing processes and equipment need to be considered to ensure printing quality and efficiency.

Environmental requirements: With the continuous improvement of environmental awareness, more and more customers have put forward requirements for the environmental friendliness of ink. When choosing ink, attention can be paid to whether it contains harmful chemicals, whether it is recyclable, and other aspects to meet environmental requirements.

In summary, there are various types of ink suitable for printing three proof thermal paper, and the specific selection needs to be comprehensively considered based on factors such as actual needs, printing technology, and ink compatibility. When making a choice, it is recommended to consult a professional printing service provider or ink supplier for more accurate advice and guidance.