SJH laser ink rainbow effect test: rainbow holographic shine that shifts with light - for packaging, labels and security marks.
A full written description of the demonstration, so the content is readable without playing the video.
This video demonstrates the rainbow holographic effect of SJH laser ink: the ink layer shows a flowing holographic rainbow gloss that shifts with light and viewing angle - for packaging, labels and security marks.
The video first shows the static appearance of the laser ink print, with a metallic rainbow quality resembling holographic film. This effect is usually achieved by orienting special platelet pigments within the ink film. Compared with holographic film transfer, the ink route eliminates the laminating and stripping steps and can be more cost- and time-efficient on some products.
As the camera rotates the print, the rainbow gloss flows and changes. This angle-dependent gloss is the core visual signature of a holographic effect and a key criterion for print quality: the more regular the pigment alignment, the more continuous and layered the rainbow flow; poor alignment looks muddy and patchy.
The video helps explain the difference between laser ink and film transfer. The ink route can print local patterns, can overprint with conventional inks and needs no laminating equipment; the film route gives a stronger overall metallic feel and more stable batch consistency. Both have their place, and the choice depends on product positioning and downstream process conditions.
| Principle | Oriented platelet pigments produce an angle-dependent rainbow gloss |
|---|---|
| Vs film transfer | Ink prints locally, overprints and needs no laminator; film gives stronger metallic feel and consistency |
| Quality check | Whether the rainbow flow is continuous and layered, i.e. regular pigment alignment |
| Typical use | Packaging, labels, security marks, decorative printing, premium gift boxes |
Laser ink and holographic film are two process routes rather than substitutes: choose ink for local effects, overprinting or avoiding an extra laminating step; choose film transfer for a strong overall metallic feel and maximum batch consistency. Holographic effects are fairly sensitive to impression conditions and substrate gloss, so proof on the same substrate batch to avoid gloss inconsistency in production.
Selection, detection, printing and ordering — answered.