Choose the right ink for the pack, press and product
Packaging ink is not one-size-fits-all. A sachet for chilled food, a carton for cosmetics, or a label that needs anti-counterfeit detail each needs a different approach to colour, curing and adhesion. We help converters choose inks that suit the substrate, the press speed and the final pack conditions, including coastal humidity in Durban, warehouse storage and handling during transport to Gauteng or the Cape.
Our range is built for South African production realities. That means practical colour response, stable print behaviour and clear visual results on the line. If your job changes from short-run seasonal work to a repeat order, we can tune the ink system so the result stays consistent from sample to full production. Founded in 2008, ThermoInk has grown around the needs of converters who want dependable supply and technical support without fuss.
Thermochromic inks for visible temperature cues
Thermochromic inks change appearance with temperature, giving a visible cue that the pack has reached a set point. These inks are used where temperature awareness matters, such as chilled distribution, consumer safety messaging or premium packaging that needs a clear interactive finish. The colour change can be set for the intended application, whether you need a quick indicator or a more gradual response.
- Threshold tuning for the required activation point
- Drawdown panels for sample approval before press work
- Trial batch making to check behaviour on the actual substrate
- Press startup support for consistent first sheets and reduced waste
We also check coating compatibility so the thermochromic layer works properly with overprint varnishes, laminates and heat sealing. That matters on flexible packs and cartons alike, where a nice looking result is not enough if the effect does not hold through the full production cycle.
Security inks that help protect authenticity
Security ink systems are used when packaging needs an added layer of verification. This can include visual effects that are hard to copy, special pattern work and UV responsive features for check points in the supply chain. For brands selling into pharmacies, high-value consumer goods or regulated categories, these tools help protect the pack and reassure the buyer.
Pieter van Wyk works on the security side with the production team to match the ink method to the risk level and the print process. We design patterns for practical use on production lines, not just in a sample file. Where needed, we set up UV verification so your team and your clients can confirm the feature quickly during receiving or audits.
- Security pattern design for pack-level identification
- UV verification setups for in-house checking
- Rub resistance checks for handling and transport
- Batch retain library for repeat reference and traceability
Press checks that save time on production day
A good ink should behave well on press and after packing. Before a run, we can carry out adhesion tests, rub resistance checks and coating compatibility reviews so you know where the limits are. This helps reduce spoilage on the floor and keeps the job within spec when the pressroom is under pressure.
Our technical team supports converters with production troubleshooting, especially when a substrate changes, a coating is adjusted, or the artwork needs a tighter tolerance. Shaun October works with press teams to sort out transfer, drying and colour consistency. Nomfundo Khumalo leads colour matching work, so repeat batches stay close to the approved sample, even when the job returns months later.
Supply for converters in Durban and nationwide
ThermoInk operates from Jacobs in Durban and supplies packaging converters across South Africa. That includes Durban South, Pinetown, Prospecton, Cape Town, Gqeberha, Johannesburg and Pretoria. Jason Pillay manages national logistics so deliveries are planned around your production dates, road conditions and site receiving rules, which is useful when municipal traffic or load-shedding causes delays.
We keep production and dispatch organised for smaller trial batches as well as repeat manufacturing volumes. Lindokuhle Dlamini oversees production planning, so orders can be lined up with colour work, retain samples and packing requirements. If your site has strict receiving times or requires special labelling for storage, we can work with that too.
How to specify the right pack finish
When you contact us through the enquiry form on our contact page, it helps to share the substrate, press method, application area and target effect. If you already have an artwork proof, send that along with any tolerance notes. The more detail we get upfront, the easier it is to recommend the right ink system and the right test path.
- Substrate type and finish, such as coated board, film or label stock
- Required visual effect or security feature
- Expected handling conditions, including heat, moisture or abrasion
- Order size, delivery site and any pack-out dates
If you are not sure where to start, we can help you narrow the options. Some jobs only need a simple colour shift, while others need a tighter security pattern or a more controlled response. The goal is practical performance on your press, not extra complexity.