发明名称 |
METHOD OF PAPERMAKING WITH MULTI-TONE WATERMARK, PAPER WITH MULTI-TONE WATERMARK, PRINTING PRODUCT WITH MULTI-TONE WATERMARK |
摘要 |
FIELD: textiles, paper.SUBSTANCE: method of papermaking with multi-tone watermark lies in the use for casting and moulding of the paper web on a papermaking machine of the relief mask representing a partially water-permeable moulding element. The element is formed on the surface of the cylinder forming fabric, or on the dandy roll of the fourdrinier former. The mask has a variable height of the image area of the watermark, created by the relief stamping of the fabric, with electrotype and/or conjoint stamping of the fabric and electrotype and/or use of several layers of the electrotype. Individual, successive layers of electrotype in the mask can have openings which are different in the diameter and the density of location. The mask is assembled out of several layers of perforated plates of metal or plastic plates or composite materials. The paper and printing product made by the above method is claimed, which are protected against forgery.EFFECT: expansion of technological capabilities of the method of production in the paper of the watermark with the increase in the capacity of the watermark as an element of protection against forgery.7 cl, 10 dwg |
申请公布号 |
RU2502841(C1) |
申请公布日期 |
2013.12.27 |
申请号 |
RU20120145372 |
申请日期 |
2012.10.25 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE UNITARNOE PREDPRIJATIE "GOZNAK" (FGUP "GOZNAK") |
发明人 |
KURJATNIKOV ANDREJ BORISOVICH;BIRICHEVSKIJ ALEKSANDR NIKOLAEVICH;OSTREROV MIKHAIL ANATOL'EVICH;PESTOV NIKOLAJ NIKOLAEVICH;SINJAEV KONSTANTIN ANDREEVICH;DOKUCHAEV SERGEJ VENIAMINOVICH |
分类号 |
D21H21/40;B41M3/10;D21F1/44 |
主分类号 |
D21H21/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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