ThermoInk

Colour that proves and protects

ThermoInk

ThermoInk supplies thermochromic and security inks for packaging converters across South Africa, with support from our Jacobs base in Durban. Since 2008, we have helped brands add temperature cues, authenticity features and consistent colour control to packaging that has to work on press and in the real world.

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Inks for packaging that need to signal, protect and print well

We supply thermochromic inks and security inks for packaging applications where the print has to do more than look good. A thermochromic system can change colour at a set temperature, giving a clear visual cue for chilled packs, heat-sensitive products or handling checks on the line. Security inks can help confirm authenticity, support anti-tamper messaging and make counterfeiting harder.

Our work is geared to converters and pack producers that need practical results on actual production equipment. That means getting the ink to sit properly on the chosen substrate, hold up through handling and suit the final pack format. Whether you are printing cartons, labels, sleeves or flexible packaging, we focus on performance that can be repeated batch after batch.

  • Thermochromic inks for temperature-sensitive packaging cues
  • Security inks for authenticity features and brand protection
  • Colour matching for specific brand requirements
  • Drawdown panels for early visual checks
  • Trial batches before full production runs

Who we serve across South Africa

We work with packaging converters, printers, brand owners and production teams that need inks with defined behaviour and dependable supply. Our client base includes businesses serving food, beverage, personal care, household goods and other packaged products that move through South African supply chains every day.

From Durban to Gauteng and the Cape, clients come to us when the pack needs a functional message as well as a clean finish. Some are looking for a temperature change that is obvious to the consumer. Others need a security feature that supports verification on shelf or in distribution. Many need both in one programme.

  • Packaging converters needing press-ready ink systems
  • Brand owners wanting a clearer consumer signal on pack
  • Printers dealing with substrate changes and shorter runs
  • Teams that require authentication features for high-risk products
  • Production managers needing stable supply and technical backup

How we test, tune and support each run

Good packaging ink has to behave properly under pressure. We work through the technical details before a full run goes ahead, then support the job when it reaches press. That can include colour matching, threshold tuning, adhesion tests, rub resistance checks and UV verification setups. If a customer needs a custom security pattern, we can assist with design and production planning so the feature is practical on the chosen line.

Our process is hands-on and detailed. We prepare drawdown panels, make trial batches and check coating compatibility before larger production starts. If there are issues on press, our team helps with troubleshooting so the client is not left guessing. We also keep batch retain samples on record, which is useful when a re-order needs to match a previous job or when a quality question comes up later.

  • Colour Matching and Threshold Tuning
  • Adhesion Tests and Rub Resistance Checks
  • UV Verification Setups and Security Pattern Design
  • Coating Compatibility reviews for different pack materials
  • Press Startup Support and Production Troubleshooting
  • Batch Retain Library for repeat work and traceability

Packaging Focus

ThermoInk develops thermochromic and security inks specifically for packaging applications used by converters and brand owners across South Africa.

Visible Function

Our inks add clear colour-change cues for temperature-sensitive products and create engaging pack effects that consumers can immediately understand.

Authenticity Layers

Security features help packaging resist tampering and imitation through overt, covert and custom verification options.

Practical Supply

From Jacobs in Durban, ThermoInk supports trials, matching, production supply and technical guidance for packaging plants nationwide.

Umhlanga Beverage Labels

Projects

Umhlanga Beverage Labels

A chilled label project for a coastal beverage pack requiring visible cold-readiness cues.

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Jacobs, Durban base with delivery routes that reach nationwide

ThermoInk is based in Jacobs, Durban, with supply routes that reach converters nationwide. We are close to the industrial belt in Durban South, which helps with fast planning for local customers in Jacobs, Durban South, Pinetown and Prospecton. We also support orders going to Cape Town, Gqeberha, Johannesburg and Pretoria, with logistics arranged to suit production schedules.

Being in Durban also means we understand local conditions. Coastal humidity can affect handling and storage, while load-shedding and municipal interruptions can put pressure on production planning. We work around those realities by keeping supply organised, communicating clearly and helping customers plan for lead times, batch timing and storage conditions that make sense for South African operations.

Our regional supply footprint includes Jacobs Supply, Durban South Supply, Pinetown Supply, Prospecton Supply, Cape Town Supply, Gqeberha Supply, Johannesburg Supply and Pretoria Supply. That reach helps us stay close to customers even when their sites are spread across different provinces.

A team built around technical detail and steady supply

ThermoInk was founded in 2008 and has grown by focusing on the technical side of packaging inks rather than quick claims. Under Managing Director Sibusiso Mthembu, the team brings together production, colour work, security ink know-how and logistics coordination so clients get support from people who understand the job from more than one angle.

Our team includes Shaun October in technical sales, Lindokuhle Dlamini in production, Pieter van Wyk as security ink specialist, Nomfundo Khumalo leading the colour lab and Jason Pillay coordinating national logistics. That mix matters when a client needs a sample matched, a batch scheduled and a delivery sent to the right site without delays.

  • Sibusiso Mthembu, Managing Director
  • Shaun October, Technical Sales Manager
  • Lindokuhle Dlamini, Production Manager
  • Pieter van Wyk, Security Ink Specialist
  • Nomfundo Khumalo, Colour Lab Lead
  • Jason Pillay, National Logistics Coordinator

Why clients keep coming back to ThermoInk

Clients return because they need packaging inks that work properly and a supplier who stays involved after the first order. In this field, consistency matters. If a colour shifts, a threshold changes or an ink does not bond as expected, the pack can lose its purpose. We stay close to the detail so the same result can be repeated on later runs.

Our customers also value the balance between functionality and presentation. A pack still has to sell, but it also needs to inform, verify and survive handling through distribution and retail. When we get the formulation right, the print supports the product instead of getting in the way. That is why many customers return with repeat jobs, new pack sizes and changes to line requirements.

We also work in a practical way. Clients do not need long explanations for the sake of it, they need clear answers, sample support and a supplier who understands how packaging operations run in South Africa. From the first trial batch to the next reorder, our aim is to keep the process steady, traceable and ready for production.

Questions we get asked

What types of packaging do you supply inks for?

We supply thermochromic and security inks for packaging uses such as cartons, labels, sleeves and flexible packs, depending on the substrate and production method.

Do you support trial runs before full production?

Yes. We can prepare drawdown panels, make trial batches and assist with press startup support so the customer can check performance before committing to a larger run.

Do you deliver outside Durban?

Yes. We are based in Jacobs, Durban and supply converters nationwide, including Cape Town, Gqeberha, Johannesburg and Pretoria.

Planning something? Send the team a message.

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