Title:
【発明の名称】安全保護紙
Document Type and Number:
Japanese Patent JP2000503077
Kind Code:
A
Abstract:
PCT No. PCT/GB96/03120 Sec. 371 Date Jun. 29, 1998 Sec. 102(e) Date Jun. 29, 1998 PCT Filed Dec. 18, 1996 PCT Pub. No. WO97/25476 PCT Pub. Date Jul. 17, 1997The invention relates to security paper and in particular to a method for the manufacture of security paper that is provided with high-quality watermarks. In particular such a method comprises forming a papermaking suspension comprising cellulosic fibers and polyvinyl alcohol fibers, which polyvinyl alcohol fibers are soluble in water at temperatures of from 95 to 100 degrees C, dewatering the papermaking suspension through an emboseed wire mesh or other embossed means, wherein the embossing creates a profile of peaks and troughs corresponding to the light and dark areas of the watermark, and the formed paper after dewatering with the watermark feature is thereafter dried to provide the resulting security paper.
Inventors:
Howland, Paul
Faux, Jonathan Paul
Faux, Jonathan Paul
Application Number:
JP52493697A
Publication Date:
March 14, 2000
Filing Date:
December 18, 1996
Export Citation:
Assignee:
Portals Limited
International Classes:
D21H13/16; D21H15/10; D21H21/40; D21F1/44; (IPC1-7): D21H13/16; D21F1/44; D21H15/10; D21H21/40
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)