Re-transferable ink jet image forming method and an image forming sheet thereof

An image forming sheet for use in an image forming method which comprises the steps of:

• jetting at least one of a plurality of different color inks for each pixel onto an image forming sheet by a plurality of ink-jet heads to form an image on the image forming sheet, the jetting step including a step of regulating a total amount of the plurality of different color inks for each pixel to form a mixed color image to be at most 250% of a predetermined maximum amount of one of the plurality of different color inks for a pixel to form a mono-color image;
• and
• transferring the image from the image forming sheet onto an image receptive medium by superimposing the image forming sheet on the image receptive medium and by applying pressure and heat on the image forming sheet and the image receptive medium superimposed,
• wherein each of the plurality of different color inks contains water in a range of 40 to 95 weight % thereof, and
• wherein the image forming sheet comprises a support having thereon an ink receiving layer containing a hydrophilic resin and a thermoplastic resin.