3D TPU UV INK is not a single product, but refers to the UV ink printing technology system that achieves a 3D effect on flexible TPUstrates. Its key lies in: TPU serving as the printing/molding substrate (such as films, phone cases, garment labels), while UV ink provides high-precision, multi-layer s-dimensional coloring capabilities; the "3D" effect is manifested through physical/optical thickening processes such as white ink stacking, high-frequency embossing, or relief rinting.
"3D TPU" is often mistakenly regarded as an independent material, but it is actually a finished product form that uses TPU as the base and achieves a three-dimensional effect through specifc processes, for example:
• 3D Embossed TPU Phone Case (High-Frequency Hot Stamping+ UV Printing);
• 3D Hollow Flame TPU Garment Label (LasCutting +UV White Ink Stacking);
• 3D Badge-Level TPU Patch (Multi-Layer White Ink Curing +UV Varnish Coating)
"UV INK" is the core consumable for achieving this 3D effect-it requires rapid curing on TPU surfaces, scratch resistance, supports multi-channel stacking of whit ink, color, and varnish, and is compatible with post-processing procedures such as high-frequency heat transfer.
Current mainstream solutions rely on a three-step closed loop of "TPU film UV white ink stacking high-frequency hot pressing and shaping," wher UV ink must meet the requirements for wettability and instantaneous curing rate under the low surface energy of TPU; otherwise, issues such as stringing and poor adhesion are like.
Notes for this solution:
• Ink Selection: High-flexibility, high-adhesion, and fast-leveling dedicated soft UV ink must be ted.
• White Ink Application: TPU badges commonly use "white ink stacking color ink coverage" to achieve a 3D embossed effect; it is essential to ensure the ink is also a flexible formula, otherwise cracking of the underlying white ink will cause the entire layer to peel off.
• Environmental Adaptability: Flexible inks performbest at 25–35°C and 40–60% RH; low temperatures (<15°C) can lead to poor leveling and orange peel, while high temperat) accelerate ink evaporation and cause nozzle clogging.
