28-08-2014 дата публикации
Номер: US20140238628A1
Принадлежит:
A method for manufacturing a security paper includes an endless microlens thread having a top and an opposing bottom with the top provided at least in fractional regions with microlenses. A paper web having a predetermined ridge pattern is produced and defines ridge regions in which the microlens is embedded in the interior of the paper, and that exhibits, lying between the ridge regions, window regions in which the microlens thread emerges at the surface of the paper web. The microlens thread is introduced into the paper web and, at the same time, is joined on its bottom and, in the ridge regions, also on its top with the paper web. The paper web with the microlens thread forms the security paper. 116-. (canceled)17. A method for manufacturing a security paper , comprising:(A) providing an endless microlens thread defining a top and an opposing bottom, the top being provided with microlenses at least in fractional regions;(B) producing a paper web having a predetermined ridge pattern defining ridge regions in which the microlens thread is embedded in the interior of the paper web, and that exhibits, lying between the ridge regions, window regions in which the microlens thread emerges at the surface of the paper web; and(C) introducing the microlens thread into the paper web and, at the same time, joining on its bottom and, in the ridge regions, also on its top, with the paper web, the paper web with the introduced microlens thread forming the security paper.18. The method according to claim 17 , whereinbefore the introduction into the paper web, the microlens thread is provided on its top with an adhesive layer in the form of the ridge pattern; andwherein in step C), the microlens thread is introduced into the paper web in register, such that the adhesive-coated regions of the microlens thread coincide with the ridge regions of the paper web.19. The method according to claim 18 , wherein the microlens thread includes a motif having a motif jump claim 18 , the ...
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