Production manner and heat sensitive die discoloration seal and heat sensitive die perspective design set null in heat sensitive die perspective

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method for a thermosensitive transparent pattern which can deal with a product having a three-dimensional curved surface. ;SOLUTION: In a manufacturing method for a thermosensitive transparent pattern, a pattern 7 is displayed on the surface of a product 6, the surface of the pattern 7 is coated with a thermosensitive discoloration ink, the thermosensitive discoloration ink conceals the pattern 7 at room temperature, the thermosensitive discoloration ink is discolored at a temperature which is higher than the room temperature, and the pattern 7 appears in a visually confirmable state. The manufacturing method uses a thermosensitive discoloration seal 1 which is composed of a sheet of exfoliation group paper 2, of a thermosensitive discoloration layer 3 which is formed on the surface of the sheet of exfoliation ground paper 2 and which is formed of a thermosensitive discoloration ink and of an adhesive layer 4 which is formed on the surface of the thermosensitive discoloration layer 3 and which is formed of an adhesive. The adhesive layer 4 at the thermosensitive discoloration seal 1 is pasted on the surface of the pattern 7. In this state, the sheet of exfoliation ground paper 2 is exfoliated from the thermosensitive discoloration layer 3.;COPYRIGHT: (C)1999,JPO