摘要:
The present invention relates to a method for manufacturing a security paper, for security or value documents, that exhibits at least one through opening (12) having characteristic irregularities (14) in the edge region. According to the present invention, a paper web having thin sites in the form of the outline of the desired shape of the at least one through opening (12) is formed on a paper mold, and the paper web dewatered after sheet formation, the region delimited by the thin sites being removed from the paper web by the occurring forces.
摘要:
The present invention relates to a method for manufacturing a security paper, for security or value documents, that exhibits at least one through opening (12) having characteristic irregularities (14) in the edge region. According to the present invention, a paper web having thin sites in the form of the outline of the desired shape of the at least one through opening (12) is formed on a paper mold, and the paper web dewatered after sheet formation, the region delimited by the thin sites being removed from the paper web by the occurring forces.
摘要:
The present invention relates to multi-ply security paper for manufacturing security or value documents, such as banknotes, identification cards and the like. Into a first paper ply (52) is introduced an endless security element (54) that is freely accessible on at least one side of the paper ply (52). The first paper ply (52) is covered on the freely accessible side of the security element (54) by a second paper ply (56), and the second paper ply (56) exhibits one or more openings (58) in the region of the security element (54).