Color memory toy set

Details Color memory toy set Color memory toy set

A - Human Necessities

63

H

207/28

A63H 9/00 (2006.01) A63H 33/22 (2006.01) B41M 5/28 (2006.01)

Patent

CA 2009625

ABSTRACT A color memory toy set comprises a color memory toy having a surface of a pattern, at least one portion of the surface being provided with a color memory temperature- sensitive color changing layer colored with a coloring material including a color memory temperature-sensitive dye exhibiting hysteresis characteristics in response to temperature change between a colored state and a colorless state or betwee a color (I) state and a color (II) state; a hot-pen for causing an image to appear or disappear on the color memory temperature- sensitive layer by drawing the image on the layer to change the color state of the drawn portion into a first state; and a cold-pen for causing an image to appear or disappear on the color memory temperature-sensitive layer by drawing the image on the layer to change the color state of the drawn portion to a second state.

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