HEAT TRANSFER PRINTING SHEET

摘要

PURPOSE:To obtain a heat transfer printing sheet providing a clear pattern with a sharp contour by forming a colored layer on a pattern contouring layer as an peeling material layer defining a contouring shape of a desired pattern provided on a porous substrate sheet. CONSTITUTION:A printing ink made of material prone to peeling by heating such as lard, lanolin and paraffin is used to form a pattern contouring layer 2 with a contour shape matching a desired pattern on a porous substrate sheet 1 such as cellulose paper and synthetic paper. Then, a colored layer 3 is formed in such a manner to be made larger than the layer 2 to cover it 2. Thus, an intended heat transfer printing sheet is obtained. With such an arrangement, the peeling of the colored layer 3 during the heating occurs only in a part matching the pattern contouring layer 2 defining the contour shape of the desired pattern thereby assuring a clear sharpness of the contouring.