D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 21/40 (2006.01) B44F 1/12 (2006.01) D21F 1/44 (2006.01) D21H 13/08 (2006.01) D21H 13/16 (2006.01) D21H 13/18 (2006.01) D21H 27/38 (2006.01)
Patent
CA 2149042
2149042 9411577 PCTABS00032 The invention relates to a method of producing visible, preferably transparent or translucent, continuous streaks and/or delimited fields in paper in conjunction with forming a paper web in a paper machine. The method is characterized by essentially preventing dewatering of paper stock/paper fibres on one or more surfaces of a wire in the forming unit of a paper machine in conjunction with forming a paper web in the machine, and by applying a special stock that contains fibres which differ from the other fibre material deposited on the wire, optionally together with an arbitrary filler and/or binder. The invention also relates to a valuable document, such as a banknote, produced from the aforedescribed paper.
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