Australia

New holographic technology has designs on banknote security

Technology continues to push the boundaries for banknote security holograms. Here, Dr Glenn Wood of the International Hologram Manufacturers Association looks at some of the latest developments.

Today, holographic technology remains very much to the fore as part of an array of overt features which make it quick and easy for people to recognise whether or not a banknote is bonafide. But new substrate technology, particularly the introduction of transparent ‘windows’ is being incorporated on banknotes to provide new levels of anti-counterfeiting complexity.

The commemorative 1,000 Tenge note produced by Papierfabrik Louisenthal for Kazakhstan and launched earlier this year takes optical sophistication to a new level. Not only does it feature a hologram showing typical rainbow colours but a small microlenticular patch viewed by transmission. The system is called Varifeye® and combines the best features of paper and polymer.

Kazakh holo
The optically variable feature on the new 1000 Tenge note of Kazakhstan showing microlenticular feature in the window and demetallised hologram below.

Previously, a deckle-edge window was created in the paper substrate during the process of cylinder-mould web formation as the stock fibers collect against the deckle, leading to the characteristic feather look. Latterly, the window has been cut into the paper after laminating to a polymeric layer. Then a clear stripe of film is laminated over it running from top to bottom of the note. The clear stripe contains the microlenticular image of a camel interchanging with the letter ‘K’ when tilted.

This feature can be viewed by transmission through the window. There is also a demetallised holographic image of the Astana Baiterek monument above the text ‘Organisation for Security & Co-operation in Europe’, interchanging with the date 2010 which are viewed by reflection where it falls over the paper. (This technology was first used on the Bulgarian lev banknotes in 2005, becoming the world’s first paper notes with see through window).

For polymeric substrates, the Bank of Australia has developed its Non-diffractive Switching Image (NSI). This appears like a dynamic watermark in the clear window of a polymer-based note. Being non-diffractive, the images are seen in varying shades of grey rather than rainbow colours and switching of the image elements occurs by rotation rather than tilting.

Mexico has also embraced new technology – the country’s 100 peso note has an ingenious feature which outwardly looks holographic but is in fact transparent optically variable inks (they are usually opaque) printed on the clear window of a polymer note. The viewer can look at the feature either by transmission or reflection. The inks change colour in both modes but the colours seen by transmission are the complementary colours of those seen by reflection.

The latest innovation in holographic technology which makes use of traditional (though modified) embossing technology is the Asterium feature from Toppan printing in Japan. Viewed in normal direct light this feature appears black but when inclined at an extreme angle, the rainbow colours of an embossed hologram appear. The important feature here is the optical black which gives a new aesthetic to documents and only reveals the colourful security feature as and when required.

cancer_frontcancer_tilt
Asterium from Toppan uses optical black in conjunction with a hologram.

Another innovator, Kurz, has developed a revolutionary wafer thin security photopolymer which can record a volume holographic image for banknotes produced for Swiss National Bank. Kurz’s success has been to develop the material thin enough for use on a banknote, especially given that the reason this is called a ‘volume’ hologram is that the interference fringes are recorded within the depth of the photo-sensitive material. Similar developments are taking place in Japan where Dai Nippon Printing is leading the way.

OVD Kinegram, a division of Leonhard Kurz, continues to push the boundaries with its Kinegram reColor®. This has been developed for use as a laminate in conjunction with a window or aperture in the banknote substrate, and provides fundamentally different, and unexpected, effects depending on whether the note is viewed from the front or reverse. On the front the viewer sees a normal metallised reflective, diffractive image, while the reverse view shows a patterned coloured foil also displaying the diffractive features. The trick is performed using different coloured resist lacquers in the demetallization process. More remarkable still is Kinegram reView® which appears the same, metallic color on both sides of the image although the images seen on the two faces can be different and unrelated to each other.

ReView frontReView back
ReView from L. Kurz displays different holographic images when viewed from opposite side of a window.

One way or another, it seems that the window technology now becoming available to printers of banknotes is here to stay. Formerly, the opaque nature of security printing paper only allowed a watermark to be seen by transmission but most holograms are, by nature, transmissive and are rendered reflective by applying a metal coating. Once the opportunity is presented to allow them to be seen by transmission, as in a window, the opportunities for an optical tour de force are increased. This renders the note more visually attractive to inspectors and consumers and more difficult to simulate by counterfeiters.

However, here’s a cautionary word. Any trend towards simplification must be seen as a move in the right direction and run hand in hand with artists and graphic designers’ abilities to make good use of the media or of the public’s ability to appreciate and evaluate the security benefits offered by the latest technology. After all, it’s not as though holograms represent the only security feature on a banknote.

They are often one of many - for example, the 1000 Tenge note for Kazakhstan has at least 16 features including one to help the blind or partially sighted. So, it isn’t necessary to fill the hologram with every conceivable feature rather remember why the hologram was originally introduced: it provided a feature that could not be photocopied. Photopolymers provide this, so there’s no reason to suppose that holographic technology will not continue to be an integral security feature on future generations of banknotes.

END

The International Hologram Manufacturers Association (IHMA) is made up of 90 of the world's leading hologram companies. IHMA members are the leading producers and converters of holograms for banknote security, anti-counterfeiting, brand protection, packaging, graphics and other commercial applications around the world. IHMA member companies actively cooperate to maintain the highest professional, security and quality standards.

Issued on behalf of the IHMA by Mitchell Halton Watson Ltd. For further details contact Andy Bruce on +44 (0) 191 233 1300 or email andy@mhwpr.co.uk
|

Australia new date (2009) 50-dollar note confirmed

australia_50_2009.00.00_p60g_sig
50 dollars (US$42.35), (20)09. Like P60, but new date.

Courtesy of Kai Hwong.
|

Documentary on Reserve Bank of Australia's bribery scandal

Four Corners has produced a documentary, Dirty Money, that explores how the central pillar of Australia’s financial system, the Reserve Bank, became ensnared in an international bribery scandal related to its polymer substrate subsidiary’s attempts to gain contracts around the world.

Courtesy of Kai Hwong.
|

Australia new date (2008) 10-dollar note confirmed

australia_10_2008.00.00_p58_sig
10 dollars (US$9). Like Pick 58, but new date (20)08 and new signatures.

Courtesy of Kai Hwong.
|

Australia new date (2008) 5-dollar note confirmed

australia_5_2008.00.00_p57d_sig
5 dollars (US$4.50). Like Pick 57, but new date (20)08 and new signatures.

Courtesy of TDS.
|

Australia new date (2008) 20-dollar note confirmed

page0_blog_entry709_3
20 dollars (US$16.10), (20)08. Like Pick 59, but new date and new signatures (Glenn R. Stevens, Governor; Dr. Ken Henry, Secretary to the Treasury).

The Reserve Bank of Australia has apparently printed all denominations dated 2008, so all will eventually appear in circulation, though only the 20-, 50-, and 100-dollar notes have been confirmed to date.

Courtesy of Scott de Young.
|

Australia new date (2008) 100-dollar note confirmed

100 dollars (US$73), (20)08. Like Pick 55, but new date and new signatures (Glenn R. Stevens, Governor; Dr. Ken Henry, Secretary To The Treasury).

Courtesy of Christof Zellweger.
|

Portrait on Australian $50 used without permission?

Australia_50_2008.00.00_f
According to a Telegraph article dated 28 November 2008, Allan "Chirpy" Campbell claims the Reserve Bank of Australia gained permission to use the image of celebrated indigenous author and inventor David Unaipon from a woman who was posing as his daughter, and did not obtain authorisation from a genuine family member.
"They jacked this woman up and proclaimed that she is the daughter of my uncle, and when we found out they blocked us and they chucked all the barricades there," he told the Australian Broadcasting Corporation (ABC).
"We are the family, I had to produce my genealogy, I had to produce my documents and documentation, they don't have to, they just say it, and they accepted it."
Mr Campbell, 61, travelled to Sydney this week to make his case for compensation to the Reserve Bank.
The bank, which has so far denied Mr Campbell's demands, refused to comment on the three-hour meeting, but made it known that it believes the appropriate advances to Mr Unaipon's family were made at the time the note was designed.
However, it is understood that those agreements were verbal and no official document of permission exists.
Mr Campbell, a lifelong campaigner for Aboriginal rights, has said he is willing to take the matter to court to obtain a "fair dinkum settlement". If successful, he plans to use the $30 million to start a charity for mentally ill children.
"They've got to renegotiate this time a proper settlement, not a tea leaf, sugar and flour syndrome, you know," he said.
"They've got no proof, no papers to show she is his daughter."
David Unaipon was Australia's first published indigenous author, an inventor and preacher from the Ngarrindjeri people of South Australia.
He held a patent for a sheep shearing mechanism that is depicted beside him on the $50 note.
In his work as a preacher, Mr Unaipon travelled widely and became well-known throughout Australia.
He lectured on Aboriginal legends and customs and also spoke of the need for "sympathetic co-operation" between whites and blacks, and for equal rights for all Australians.
He died in 1967. His image appeared on the $50 note from 1995 when the polymer bill was introduced.

Australia_1_1968.00.00_P37b_r
The Unaipon case echoes the use, in 1966, of a bark painting by Arnhem Land artist David Malangi on the $1 note. It later emerged the artwork was reproduced without permission. Mr Malangi was compensated $1,000, a fishing kit and a silver medal.
|

Australia new date (2008) 50-dollar note confirmed

Australia_50_2008.00.00_f
50 dollars (US$47.95), (20)08. Like P60, but new date and new signatures (Glenn R. Stevens, Governor; Dr. Ken Henry, Secretary To The Treasury).

Courtesy of Scott de Young.
|

Australia new date (2007) 20-dollar note confirmed

page0_blog_entry278_1page0_blog_entry278_3
20 dollars (US$17.85), (20)07. Like SCWPM 59, but new date and new signatures (Glenn R. Stevens, Governor; Dr. Ken Henry, Secretary to the Treasury).

Courtesy of Frank Robinson.
|

Australia new dates (2005 and 2006) confirmed

5 dollars (US$3.95), (20)05. Like Pick 57, but new date. Signatures (I. Macfarlane, Governor; Henry, Secretary). Serial DD. Polymer.

10 dollars (US$7.90), (20)06. Like Pick 58, but new date. Signatures (I. Macfarlane, Governor; Henry, Secretary). Serial BH. Polymer.

20 dollars (US$15.80), (20)05. Like Pick 59, but new date. Signatures (I. Macfarlane, Governor; Henry, Secretary). Serial CJ. Polymer.

50 dollars (US$39.45), (20)05. Like Pick 60, but new date. Signatures (I. Macfarlane, Governor; Henry, Secretary). Serial HE. Polymer.
|

Australia’s Reserve Bank annual report findings

Australia’s Reserve Bank annual report findings Read More...
|