Printing using color changeable material

A method for printing data on a substrate comprising a color-changeable material, the method comprising:

• printing at least a portion of each of a plurality of printed publications based on fixed data using a commercial printing press, wherein the fixed data comprises data common to the plurality of printed publications;
• and
• controlling a device comprising an energy source to change a color of the color-changeable material based on variable data to provide at least a portion of the plurality of printed publications, wherein the variable data comprises data changed between at least two of the plurality of printed publications, and wherein the color-changeable material is changed to provide at least a portion of each of a plurality of different pages of the plurality of printed publications;
• wherein the device comprising the energy source is controlled to change the color of the color-changeable material in-line with a flow of the substrate through one of a printing line, a finishing line, or a packaging line of the commercial printing press.

A system for printing data on a substrate comprising a color-changeable material, the system comprising:

• a processing circuit;
• and
• a device comprising an energy source;
• wherein at least a portion of each of a plurality of printed publications is printed on the substrate using a commercial printing press based on fixed data, and wherein the fixed data comprises data common to the plurality of printed publications;
• wherein the device comprising the energy source is configured to add variable data to the substrate, wherein the processing circuit is configured to receive the variable data and to control the energy source to change a color of the color-changeable material based on the variable data to provide at least a portion of the plurality of printed publications, and wherein the variable data comprises data changed between at least two of the plurality of printed publications;
• wherein the processing circuit is configured to control the energy source to change the color of the color-changeable material in-line with a flow of the substrate through one of a printing line, a finishing line, or a packaging line of the commercial printing press;
• and
• wherein the device comprising the energy source is further configured to add variable data to a product packaging comprising the color-changeable material, and wherein the color-changeable material is changed before the product packaging is separated into a plurality of individual product packaging components.