FIELD: paper; IT.
SUBSTANCE: fraud-proof paper of total fibre density is applied for security or fraud-proof document manufacturing such e.g. bank note, cheque, share, identification card, season ticket or admission ticket and is provided with bar code. This bar code consists of message bars separated from each other by spacing fields. Spacing fields are designed as watermark and therefore fibre density of this fraud-proof paper differs from total fibre density in spacing field areas.
EFFECT: higher degree of document fraud protection and extended possibility of authenticity control.
25 cl, 10 dwg
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