| 摘要 |
The present invention provides a new technique wherein the marks meant to help the blind to easily identify the security documents involving currencies, cheques, and other banknote denomination. The two stage technique involves first printing the specially designed FEEVAL marks by Intaglio process on to the precoated mild heat release adhesive paper reels for transferring on to the watermark sheets in special coolers with specially designed apparatus. The second stage is post printing which in literal sense transferring the specially designed Intaglio printed FEEVAL marks precoated with mild heat release adhesive on the back side to facilitate transferring them onto the watermark sheets using special apparatus. By touching the specially designed mark, the value of the document is easily recognized by blind. |
