Patent ID: 8622433

Claim:
A value document, comprising a security paper and a marking produced at least in the security paper with the help of a laser, wherein the security paper includes at least one partial area with a coating, wherein the coating comprises a transparent layer being transparent to laser radiation of a selected wavelength and an absorbent layer being absorbent to laser radiation at the selected wavelength and being located between the transparent layer and the security paper, wherein the marking is made by the laser in the coating and extends into the security paper through a border area between the coating and security paper, and the laser influences the coating and the security paper differently such that the appearance of the marking changes in said border area, wherein the marking is shown as a negative representation formed by gaps present only within the coating and extending through the transparent layer and the absorbent layer and is shown as a positive representation in the form of color alterations of the security paper outside the at least one partial area with the coating, wherein the security paper has additives, which change or alter color in the presence of a laser, outside the at least one partial area with the coating to make the positive representation of the marking.