Process for irreversible recording, a recording medium, and...

B - Operations – Transporting – 41 – M

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Details

CPC

282/18

IPC codes

B41M 5/10 (2006.01) B41L 1/22 (2006.01) G09B 3/04 (2006.01)

Type

Patent

Patent number

CA 1260513

Description

ABSTRACT A method and product for preventing an amendment of a notation on a notation sheet arrangement comprises the provision of a bag of two joined sheets with a notation contrast generating sheet introduced therewithin. A notation is applied from outside of the bag on a notation area and the contrast generating sheet generates a notation contrast on and inside the bag in the notation area. The contrast generating sheet is removed from the bag to at least such an extent that it leaves the notation area of the bag and re-introduction of the removed contrast generating sheet into the notation area of the bag is disabled by enabling by such removal of the contrast generating sheet a closure of the bag to automatically arise by enabling the two sheets of the bag to come together and adhesively join with one another along at least a part of the bag from which the generating sheet is removed. The present invention has considerable advantages in terms of cost and flexibility of application over prior art techniques of irreversible notation recording.

Application Number

499370

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