MULTICOLOR IMAGE FORMING MATERIAL AND MULTICOLOR IMAGE FORMING METHOD

摘要

A multicolor image forming material for laser thermal transfer comprising an image receiving sheet having a cushion layer and an image receiving layer and a thermal transfer sheet of at least four colors, yellow, magenta, cyan, and black that has a support and at least a photoelectric converting layer and an image forming layer both formed on the support, characterized in that the conditions 3 <= Rz / Ra <= 20 and 0.5 microm <= Rz <= 3 microm are satisfied where Ra and Rz are the roughnesses of the surface of the image receiving sheet. Another multicolor image forming material is disclosed wherein the ratio (OD/thickness) of the optical density (OD) of the image forming layer of each thermal transfer sheet to the thickness is 1.50 or more, the recording area of a multicolor image of each thermal transfer sheet is 515 mm X 728 mm or more, the resolution of the image transferred to the image receiving layer of the image receiving sheet is 2400 dpi or more, the elastic modulus of the image receiving layer of the image receiving sheet is 2 to 1200 MPa, and the elastic modulus of the cushion layer of the image receiving sheet is 10 to 300 MPa. A multicolor image forming method using these materials are further disclosed.