Marked Deck
Choosing marked deck as what you love rather than love what cards you choose
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Marked deck is a unique presentation form of playing cards which made with different superb craftsmanship. In the meanwhile, nothing has been changed in appearance. To some extent, it more likely poker cheating devices when gambling or magic shows.
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Process Technology Changes
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1. Destroy the shape of the card itself
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2. Change the back pattern of the card to identify
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3. Invisible mark
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Cheating by tampering with a marked deck is almost as old as cards themselves. The only thing that has changed is the technology used to escape detection. Cards marking experience different stages. Throughout the history of card marking so far, the earliest attempt to mark poker involves bending, curling and tiny needle impacts, or scratching with special tools, just like text labels.
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As more and more players on the integrity of the brand itself in increasingly high demand, the first process was naturally be abandoned. In second stage, marked poker cards are visible. If scrutinizing the marked deck of cards, you can detect some slight marks without the help of any other cheating devices. It’s very convenient. There are numerous ways to make visible codes on playing decks.
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Later, some minor designs on the back of the card began to appear, marking the recognition by changing the back of the card design by adding or removing lines or bolding the lines of the pattern and changing the color. |
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Invisible ink marked deck is the most widely used marking cards technology. |
As time flies, those marked deck processed by the second stage craftsmanship already can't meet the players demands. Although those cards didn't destroy their shape, but those traditional cards marking have their disadvantage that it must be read closely because the marks are small while luminous and juice marked-card technology can be read closely or from across a table.
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Ultimate Marked Deck
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Ultimate marked deck has great secret on the back pattern of cards. Maybe you have heard this type of mark cards before, because it is widely used in magic show. There are mainly five marking ways: dot, line, hieroglyphics ... Read More >
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Invisible Marked Deck
1. Back Marked Deck (marked cards for contact lenses)
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2. Barcode Marked Poker Cards(Side Marked Cards)
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5 types marks for invisible marked deck |
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As we mentioned above, back marked deck can be divided into 2 types according to their read devices. The biggest difference is that the application of ink is hugely different. That's mean, although those two type cards marked the same way, but you can't use infrared contact lenses or sunglasses to see the marks on playing cards for IR camera lens. There is no doubt that infrared contact lenses will be easier to operate than a camera lens which you need to install into unique item, such as chandelier, surveillance cameras, smoke detector and so on.
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Working Principle |
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Invisible ink marked deck is based on the principle of infrared and ultraviolet light. In our daily life, we are no stranger to infrared and ultraviolet light. We know them, but we can’t see and touch them. They are invisible for us. Invisible ink precisely takes advantage of this principle. Processed cards are “invisible” for us because the invisible ink is beyond the wave band we can see through our naked eyes. Normally, we can see something with wave band between 390 to 700 nm.
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Q: Can I mark playing cards with the invisible ink pen?
R: In theory, this is feasible. But how to make the effect of marks is invisible perfectly is not only relaying on the ink, but also our marking cards machine. What's more, you should know how to mix ink with different color according to back pattern of playing cards. |
How barcode marked cards work?
Barcode marked cards have totally different working principle with previous ones. A barcode is a graphical identifier that is used to express a set of information by arranging a plurality of black bars and blanks of unequal width according to certain coding rules. Barcode on marked playing cards resembles to the QR code we use in daily life. They all use black strips and blanks to show information. The only difference between QR code and barcode marked cards is that the bar code on the cards is invisible ... Read More >
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As technology has advanced, so have cheating techniques. Marked cards with Invisible ink are still in use today in quite sophisticated forms. However, marked cards become more and more perfect and the high-quality luminous cards are invisible for naked eyes when exposed in different light. What's more, this type of invisible cards has a generality that their using time and retention period are very long. Usually, it can keep as long as 2 years under un-open .