Here, the Wyrdeer V is inverted to better show the texture of Oranguru V. This effect occurred because the sheets on which Pokémon cards are printed have more selvage on one side than the other, which pushed the design into the blades. This caused the front of the card to appear to be miscut. Lastly, the card entered the cutting machines properly oriented to the back of the card, not the front. ![]() Please note: “Inverted Back” is the commonly accepted term in the marketplace, which is why CGC Cards uses it, but technically, most trading cards have their backs printed first, so it is the front of the card that is actually inverted. The sheet was then flipped around the right way with relation to the properly oriented back of the sheet, and the texture was therefore applied upside down with relation to the inverted front of the card. Because of this, the regular printing of the front of the card is upside down with relation to the back. This error occurred when a sheet with normally printed backs was placed into the printer backwards. This is a fun error type! Look closely at the front photo above (specifically at the Celebrations logo) and see that the texture is inverted, and the texture is that of the Flying Pikachu V from the same set. Note the texture of the Pikachu Logo and Pikachu's tail near the now upside down Pikachu Logo on Zamazenta V. In the photos above, the front of the Zamazenta V is inverted in order to more easily compare the texture on the card to that of the Flying Pikachu V. With such high-speed presses and numerous color layers, as well as complicated cutting machines, mistakes are bound to happen and escape… Types of Error CardsĮxplore the numerous different types of error cards, and find out how these errors occur in the printing process. When the blanket is then pressed into the card stock, the design for that color is transferred to the sheet. This results in a mirror image of the design printed on the blanket cylinder. The inked plate is then pressed against a soft rubber cylinder, known as a blanket cylinder. Of course, only the lacquered parts of the plate will pick up ink while the other areas do not. The metal printing plate is then curved around a printing cylinder that dampens it with water and then brushes it with ink. The rest of the plate is coated with gum so that it attracts water. Next, the parts of the plate from which the image is printed are coated with a clear varnish called lacquer that attracts ink. First, the desired image to be printed is transferred photographically or lasered to the printing plate. Modern offset lithography printing uses a thin, metal printing plate to begin the process, and a different printing plate is required for each color. This means that one press alone can print up to 1.8 million cards per hour! ![]() The printed sheets typically have 100, 110 or 121 cards on each. These presses cost millions of dollars and can print up to 15,000 sheets of cards per hour. Most trading cards, including Pokémon and Magic: The Gathering cards, are printed on large, room-sized offset lithography printing presses, which print in four primary colors: cyan, magenta, yellow and black. This visit helped to solidify the graders’ understanding of errors and how they occur, and also to establish connections with printing facility quality control experts who can assist with the authentication of some esoteric errors. To further expand CGC Cards’ expertise in this area, the senior-most graders secured an invitation to visit a printing facility in North Carolina in August 2021. CGC Cards is the first third-party grading service to authenticate and grade major errors within the trading cards market, with the aid of advanced forensic technology.
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