发明名称 |
IMPROVEMENT IN SECURITY FEATURES FOR PAPER |
摘要 |
The invention relates to improvements in security features in paper and in particular to a method of making paper and transparentising selected areas of paper to provide enhanced security features. The invention thus provides a method of making paper comprising the steps of depositing fibres (12) onto a support surface (13) to form a porous absorbent sheet (14), applying a transparentising resin to at least a portion of said porous sheet and subsequently impregnating the porous sheet with a sizing resin. |
申请公布号 |
WO9509275(A1) |
申请公布日期 |
1995.04.06 |
申请号 |
WO1994GB02015 |
申请日期 |
1994.09.16 |
申请人 |
PORTALS LIMITED;THE GOVERNOR AND COMPANY OF THE BANK OF ENGLAND;HOWLAND, PAUL;FURLEY, ROBERT, JOHN |
发明人 |
HOWLAND, PAUL;FURLEY, ROBERT, JOHN |
分类号 |
B42D15/10;B41M3/14;B42D15/00;D21H21/16;D21H21/26;D21H21/40;D21H23/00;D21H23/28;(IPC1-7):D21H23/28;B41M3/10 |
主分类号 |
B42D15/10 |
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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