Transitioning Playing Cards and Enclosures

Abstract

A deck of playing cards are provided that utilizes temperature-sensitive or photo-sensitive inks to provide images that can change in different environmental conditions. In various embodiments, a temperature-sensitive ink, such as a thermochromic ink, changes from opaque at a first temperature to at least partially translucent or transparent at a second temperature. In various other exemplary embodiments a photo-sensitive ink, such as a photochromic ink, changes from opaque at a first temperature to at least partially translucent or transparent at a second temperature. The deck of playing cards may also include common and unique designs or indicia and the temperature-sensitive or photo-sensitive inks may be used to provide at least a portion of either or both of the common and unique designs.

1 . A deck of playing cards comprising a plurality of individual playing cards wherein each of the individual playing cards comprises:
 a first planar surface;   a second planar surface opposing the first planar surface;   a common design provided on the first planar surface; and   a unique design provided on the second planar surface;   wherein at least one of the common design and the unique design comprises a first subdesign containing ink chosen from the group consisting of temperature-sensitive and photo-sensitive inks.   
     
     
         2 . The deck of playing cards of  claim 1 , wherein each of the individual playing cards further comprises a second subdesign containing conventional ink. 
     
     
         3 . The deck of playing cards of  claim 1 , wherein the unique design of each of the individual playing cards comprises a common first subdesign and a unique second subdesign wherein at least one of the first and second subdesigns is comprised of thermo-sensitive ink. 
     
     
         4 . The deck of playing cards of  claim 1 , wherein the unique design of each of the individual playing cards comprises a common first subdesign and a unique second subdesign wherein at least one of the first and second subdesigns is comprised of photo-sensitive ink. 
     
     
         5 . The deck of playing cards of  claim 1 , wherein the first subdesign comprises photochromic ink. 
     
     
         6 . The deck of playing cards of  claim 5 , wherein the photochromic ink experiences a first pericyclic reaction when exposed to a first light condition. 
     
     
         7 . The deck of playing cards of  claim 6 , wherein the photochromic ink experiences a second pericyclic reaction when exposed to a second light condition. 
     
     
         8 . The deck of playing cards of  claim 5 , wherein the photochromic ink experiences a first cis-trans isomeric reaction when exposed to a first light condition. 
     
     
         9 . The deck of playing cards of  claim 8 , wherein the photochromic ink experiences a second cis-trans isomeric reaction when exposed to a second light condition. 
     
     
         10 . The deck of playing cards of  claim 5 , wherein the photochromic ink experiences a first intramolecular reaction when exposed to a first light condition. 
     
     
         11 . The deck of playing cards of  claim 10 , wherein the photochromic ink experiences a second intramolecular reaction when exposed to a second light condition. 
     
     
         12 . The deck of playing cards of  claim 5 , wherein the photochromic ink experiences a dissociative reaction when exposed to a first light condition. 
     
     
         13 . The deck of playing cards of  claim 12 , wherein the photochromic ink experiences a recombination reaction when exposed to a second light condition. 
     
     
         14 . The deck of playing cards of  claim 5 , wherein the photochromic ink experiences a reduction reaction when exposed to a first light condition. 
     
     
         15 . The deck of playing cards of  claim 14 , wherein the photochromic ink experiences an oxidation reaction when exposed to a second light condition. 
     
     
         16 . The deck of playing cards of  claim 1 , wherein the first subdesign comprises thermochromic ink. 
     
     
         17 . The deck of playing cards of  claim 16 , wherein the thermochromic ink is opaque above a first temperature point and at least partially translucent below the first temperature point. 
     
     
         18 . The deck of playing cards of  claim 16 , wherein the thermochromic ink is at least partially translucent above a first temperature point and opaque below the first temperature point. 
     
     
         19 . The deck of playing cards of  claim 16 , wherein the thermochromic ink changes color when the ambient temperature around the deck of playing cards changes from below a first temperature point to above the first temperature point. 
     
     
         20 . The deck of playing cards of  claim 16 , wherein the thermochromic ink changes color when the ambient temperature around the deck of playing cards changes from above a first temperature point to below the first temperature point.