How to choose the right ink?
Custom UV/LED Inks for Industrial Printing: A Complete Guide
When an ink fails in production, it is almost never about the color. It fails because of adhesion on an untested substrate, curing at a machine speed different from the lab, or resistance to outdoor conditions that nobody specified. That is why a serious industrial ink cannot come from a generic catalog: it must be formulated for the exact surface, machine, and real-world conditions of each client.
Why a Generic Ink Is Not an Industrial Option
Every surface has a unique microstructure and surface energy. The exact same pigment behaves differently on wood, metal, glass, or cardboard, and an ink designed for “everything” ends up being the optimal solution for nothing. At Digiti Signum, we don’t manufacture generic colors: every ink is developed to withstand the exact pressure, climate, and surface of the production line where it will live.
The Complete System: Primer, Ink, and Varnish
An ink rarely works alone. The complete system consists of three layers:
- Primer (Base Coat): Prepares the substrate and ensures adhesion, even on difficult surfaces such as technical plastics, metal, or glass.
- Ink (The Color): Precisely formulated for your surface, machine, and real operating conditions, with batch traceability.
- Varnish (Top Coat): Protects the color against wear and tear and defines the final finish—matte, gloss, or textured.
All three layers are formulated to work together. Ordering just the ink is possible, but the complete system is what guarantees results in real production, not just in a lab sample.
The Custom Development Process
Development follows four phases, from your substrate to the production batch:
- Surface: We study the microstructure, surface energy, and real operating conditions of the material.
- Formulation: The ink is composed from scratch: viscosity, surface tension, and curing are tailored to your process.
- Real-world Testing: Samples are printed on your actual material and subjected to adhesion and durability tests.
- Traceable Batch: Scaled up to production with full traceability: every batch is documented and repeatable.
No development moves to production without passing real-world testing on the customer’s material. It is the only way to guarantee that what works in the lab also works on the line.
Digiti Signum Ink Lines
- EVO Inks: Multipurpose formulation for high-demanding digital printing processes.
- Indura Inks: Designed for building materials and outdoor applications. Developed to withstand temperatures from -20 °C to +70 °C, with Total Solar Reflectance (TSR) testing conducted by the AIDIMME Technology Institute, and compliant with RoHS regulations.
- Cardboard Inks: For corrugated cardboard, formulated in compliance with REACH regulations for the protection of human health and the environment.
Industries We Serve
- Building Materials: Printing on construction materials, with regulatory compliance and outdoor resistance.
- Premium Packaging: Luxury packaging, cosmetics, and food sectors.
- Textiles & Flexible: Flexible substrates with high color fastness and wash resistance.
- Decoration & Signage: Interiors, corporate identity, and decorative elements.
- Coding & Marking: Industrial marking, barcodes, and traceability for high-speed lines.
- Commercial Graphics: Graphic arts and wide format with critical color fidelity.
Frequently Asked Questions
What happens if my current supplier doesn’t cover my surface properly?
That is exactly when custom formulation makes sense: we analyze your surface, machine, and operating conditions, and develop a specific ink for that particular challenge, complete with technical datasheets and batch traceability.
Do you formulate for any printing technology?
We work with the market’s leading industrial printhead platforms. If your technology isn’t among those we’ve already validated, the first step is a compatibility test before starting the formulation phase.
Can I order only the ink without primer or varnish?
Yes, but we will be honest if your application requires the complete system to guarantee results. We don’t sell layers you don’t need.
Do you have a surface, machine, or operating condition challenge that no catalog ink can solve?
Tell us about your technical challenge.ones de uso que ninguna tinta de catálogo resuelve? Cuéntanos tu desafío técnico.
