| 摘要 |
PCT No. PCT/ES92/00005 Sec. 371 Date Dec. 15, 1992 Sec. 102(e) Date Dec. 15, 1992 PCT Filed Jan. 10, 1992 PCT Pub. No. WO92/12293 PCT Pub. Date Jul. 23, 1992.The security paper incorporates, as fundamental characteristic, groups of security yarns which are braided within each group, using at least three yarns so that such braiding presents a very characteristic irregular surface, easily detectable by touch, for identification of the document either by the bank staff or by blind people. The use of yarns of different colours in each braiding allows to form colour combinations which collaborate in the personalization of the yarn and, consequently of the document, for example the colours of the national flag corresponding to the country issuing the document.
|
