| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure sensitive bonding product that conceals personal information described on surfaces bonded and laminated, and in addition if trying to peek the information, the illicitness can be easily certificated, and the misbehavior is surely prevented, and there is no obstacle in manufacturing and handling.SOLUTION: A pressure sensitive bonding product is divided into one piece and the other piece with the boundary of a folding scheduled line of an opaque substrate. Pressure sensitive bonding layers provided on opposing surfaces with a boundary of a folding scheduled line can be bonded, peeled and re-bonded. On one surface of one piece of the opaque substrate, the pressure sensitive bonding layer and a developer layer containing the electron accepting developer are provided in order. On one surface of the other piece of the opaque substrate, the pressure sensitive adhesive layer and a coloring agent layer containing a microcapsule involving the electron donating coloring agent are provided in order, and is folded by the folding scheduled line, the microcapsule is broken by pressurizing, the electron donating coloring agent reacts with the electron accepting developer and the developer layer produces the color. |
