Embossed Hologram V/s Volume Hologram

Not all holograms are made the same way. An embossed hologram (surface relief hologram) is the type found on credit cards, product labels, and banknote security threads. It is created by physically embossing a diffraction grating into a plastic film (usually PET) and then metalizing it with aluminium. It is thin, flexible, and ideal for mass production (millions of labels). A volume hologram (also called a thick or Lippmann hologram) is recorded in a thick photopolymer or dichromated gelatin film. The interference pattern creates refractive index variations throughout the thickness of the material, not just on the surface. Volume holograms are viewed in reflection (white light) and can produce true colour images, but they are more expensive to produce and less common. Volume holograms are used for high‑security applications such as passport data pages, ID cards, and valuable documents where a thicker, more durable hologram is acceptable. Holoseal primarily supplies embossed holograms for brand protection, but we can advise on volume hologram options for specialised needs.

🔬 Detailed Comparison: Embossed Hologram vs. Volume Hologram

🔍 What is an Embossed Hologram?

An embossed hologram is a surface relief structure created by stamping a diffraction pattern into a plastic film. It is then metalized with aluminium to make the rainbow effect visible. Nearly all security holograms (labels, strips, foils) are embossed because they are cost‑effective for mass production. Key characteristics:

• Thin, flexible, can be self‑adhesive
• Bright rainbow colours, 3D depth (if 2D/3D), kinetic effects (DOVID)
• Can be combined with VOID/destructible tamper evidence
• Supports serialisation (printing or laser demetalisation)

🔍 What is a Volume Hologram?

A volume hologram is recorded in a thick photosensitive material (photopolymer or gelatin). The interference pattern creates a periodic variation of refractive index throughout the depth of the material. When illuminated with white light, it reflects a narrow band of wavelengths, producing a sharp, true‑colour image. Volume holograms are often used for:

• Passport data page overlays (e.g., holographic laminate with a portrait)
• High‑security ID cards
• Collectible holograms (art, museum replicas)
• Applications requiring a thick, durable, tamper‑evident seal

Volume holograms are more secure against counterfeiting because they cannot be copied by simple embossing; they require the original laser recording setup. However, they are more expensive and produced in smaller volumes.

🔐 Which One Should You Choose?

• Choose Embossed Hologram – For almost all brand protection labels, product authentication, packaging, and high‑volume applications. They are affordable, versatile, and offer excellent overt security (rainbow, depth, kinetic effects). Holoseal specialises in embossed security holograms.
• Choose Volume Hologram – When true colour reproduction is required (e.g., a photorealistic portrait on a passport), or for low‑volume, high‑value documents where the higher cost is acceptable. Also for archival or artistic holograms.
• Hybrid Approach – Some high‑security documents combine an embossed DOVID patch (kinetic effects) with a volume hologram laminate (true colour portrait).

🌍 Real‑World Examples

• Embossed hologram on a credit card – The classic dove or globe hologram embossed into a thin PET film.
• Volume hologram on a passport data page – A thick laminate with a true‑colour portrait that changes hue when tilted.
• Embossed DOVID on a banknote – A rolling bar or colour‑shift patch – thin and flexible, integrated into the paper.
• Volume hologram on a museum collectible – A thick glass or film hologram of a famous artifact.

❓ Frequently Asked Questions

• Are embossed holograms less secure than volume holograms? – Not necessarily. High‑security embossed DOVIDs are very hard to counterfeit. Volume holograms are more difficult to replicate due to the need for laser origination, but embossed can still be extremely secure with proper features.
• Which one is more durable? – Volume holograms are thicker and have no metal layer to oxidise, so they are often more durable. Embossed holograms require a protective top coat for long life outdoors.
• Can volume holograms be mass‑produced? – Not as efficiently as embossed. Contact copying is possible, but per‑unit cost remains high.
• Does Holoseal supply volume holograms? – While our core business is embossed holograms, we can facilitate volume hologram production for specialised projects. Contact us to discuss your needs.
• How to order embossed hologram labels from Holoseal? – Provide your artwork, required security features, and volume. We will produce a custom master and samples. Contact us for a quote.