Playing card

Abstract

A suit and a rank are printed on one surface of a card base sheet, a back pattern is printed on a back surface, an intermediate layer having a black layer or a color layer similar to black is provided on the card base sheet to make transmission of visible rays difficult, and ink containing no carbon is used for printing the suit and the rank, and thus the intermediate layer prevents the transmission of the visible rays from the back surface and the suit and the rank printed with the ink containing no carbon transmit infrared rays, such that it is difficult for both the visible rays and the infrared rays to distinguish the suit and the rank from the back surface, and one set or a plurality of sets of decks are constituted by individual cards cut from the card base sheet by a cutting machine.

1 . A playing card, wherein:
 a suit and a rank are printed on one surface of a card base sheet, and a back pattern is printed on a back surface,   an intermediate layer having a black layer or a color layer similar to black is provided on the card base sheet to make transmission of visible rays difficult, and an ink containing no carbon is used for printing the suit and the rank,   the intermediate layer prevents the transmission of the visible rays from the back surface and the suit and the rank printed with the ink containing no carbon transmit infrared rays, such that it is difficult for both the visible rays and the infrared rays to distinguish the suit and the rank from the back surface, and   one set or a plurality of sets of decks are constituted by individual cards cut from the card base sheet by a cutting machine.   
     
     
         2 . The playing card according to  claim 1 , wherein the back pattern of the card base sheet is printed by an ink containing carbon to allow the ink containing carbon of the back pattern to prevent the transmission of the infrared rays from the back surface. 
     
     
         3 . The playing card according to  claim 1 , wherein the intermediate layer prevents the infrared rays including the carbon from seeing-through. 
     
     
         4 . A shuffled playing card, wherein predetermined sets of the playing cards according to  claim 1  are shuffled by a shuffle machine to form one set of shuffled playing cards. 
     
     
         5 . The shuffled playing card according to  claim 4 , wherein individually different shuffled playing card IDs are assigned to the shuffled playing cards as ID codes. 
     
     
         6 . A table game system, comprising:
 a playing card having one surface on which a suit and a rank are printed;   a game table for performing a game using the playing card; and   a card distribution device for withdrawing the playing card in the game table sheet by sheet, wherein:
 the playing card is printed with a suit and a rank with an ink containing no carbon, and codes indicating the suit and the rank are printed with an invisible ink, and 
 the card distribution device has a function of reading the rank from the code printed with the invisible ink and determining and displaying win or loss results of each game based on information of the rank.