SJH ink heat resistance and lamination test: prints keep color and adhesion after high-temperature lamination - for card making, ID documents and high-temperature processes.
A full written description of the demonstration, so the content is readable without playing the video.
This video demonstrates heat resistance and lamination testing of SJH inks: prints retain colour and adhesion after high-temperature lamination - validated for card making and ID document processes.
The video first records the colour and surface condition of the printed sample before lamination, as a baseline for comparison. Heat resistance is a core specification for card-grade ink: card production involves high-temperature, high-pressure lamination, and if the ink changes colour, flows or loses adhesion during that step the whole batch is scrapped.
The camera shows the sample entering the high-temperature lamination process. Lamination imposes several stresses at once - heat, pressure and interaction with the contacting material (PVC, PET and others) - so heat resistance must be validated under the actual process conditions. An ink heat rating alone does not predict post-lamination performance.
After lamination the sample is re-checked: the colour matches the pre-lamination state and the ink film adheres firmly with no blistering, flaking or migration. Stable colour indicates heat-resistant pigments; firm adhesion indicates a resin system compatible with both substrate and overlay. Together they form the reliability basis for card inks.
| Key specs | Heat resistance plus lamination resistance, validated for colour and adhesion |
|---|---|
| Test conditions | Must be validated under the actual lamination process (temperature, pressure, contact material) |
| Typical risks | Colour shift, flow, blistering, flaking, migration into the contact layer |
| Typical use | Bank card and smart card making, ID document printing, packaging with high-temperature steps |
Heat resistance testing makes a point that is easily overlooked: ink selection must match the downstream process, not just the press. For card and ID document customers, it is best to provide your lamination parameters and contact materials and let us proof specifically against them - far cheaper in time and cost than buying ink first and testing the process later.
Selection, detection, printing and ordering — answered.