Stock material or miscellaneous articles – Layer or component removable to expose adhesive – Sectional layer removable
Patent
1995-11-01
1998-04-07
Ahmad, Nasser
Stock material or miscellaneous articles
Layer or component removable to expose adhesive
Sectional layer removable
281 4, 281 6, 283 62, 283 75, 283107, 428 401, 428 419, 428 421, 428 423, 428121, 428138, 428914, B42D 1510
Patent
active
057362122
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a form with a detachable card and onto the back of the form, at least partly covering the area of the card, is stuck a support material, which in addition to a support layer has a glue layer which can be peeled off from the card. The term "glue layer which can be peeled off from the card" means a glue layer, which on the one hand has a permanent adhesive action with respect to the support layer, but does not evolve on the other hand a permanent adhesive action with respect to the card and from which the card can consequently be peeled without leaving glue residues thereon. An adhesive action is looked upon as being permanent if the bonded together layers cannot be easily separated from one another again in non-destructive manner.
The invention also relates to a support and a covering material for the form of the aforementioned type, as well as a production process for the same.
Forms with detachable cards are being increasingly used by organizations for calling in subscriptions and simultaneously providing a membership or identity card for the addressee.
PRIOR ART
In a known form with a detachable card the covering layers are adhered on both sides to a form sheet and the card is produced by punching through all the layers in said sheet. Punching bridges are left behind, so that the card does not drop out of the form. For the covering layers use is made of a transparent film material through which it is possible to see in the vicinity of the card an imprint on the form determining the appearance of said card. The cover layers serve to protect this imprint, obtain a smooth, water-repelling surface and for reinforcing the card.
However, the punching bridges have proved disadvantageous in the known form. They have a prejudicial optical and tactile effect on the detached card and form problem points at which there is a risk of the card being torn on detachment. Following the detachment of the card a hole is left behind in the form.
EP-A1-613792 discloses a form of the aforementioned type, in which a card produced in a separate operation following the punching out of a sufficiently large hole in the form and the back adhesion of the carrier material provided with the peel glue is inserted in the hole. Due to the production and positioning tolerances there must be a certain distance between the outer circumference of the card and the inner edges of the punched hole. The production of the card in separate operations and its positioning in the punched hole of the form sheet is relatively complicated.
DESCRIPTION OF THE INVENTION
The problem of the invention is to provide a form with a detachable card, which avoids the aforementioned disadvantages, in which however the card can be equally easily detached and up to then is at least as securely held in the form plane. The invention is also directed at providing suitable support and covering materials, as well as giving a suitable production process.
According to the invention this problem is solved in the case of a form of the aforementioned type, according to claim 1 in that the card is a blank produced by a punching performed from the front of the form and extending up to the support layer and held by the latter in the form.
Support materials are characterized in claim 9 and covering materials in claim 20. Claim 21 relates to a production process according to the invention.
Advantageous developments of the invention are characterized in the dependent claims.
The invention is described in greater detail hereinafter relative to embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a sectional view under a) and b) of a first, simplest embodiment of a form sheet according to the invention.
FIG. 2 is a sectional representation under a) and b) of an embodiment extended compared with the first embodiment by cover layers.
FIG. 3 a sectional representation under a) and b) of a further embodiment with a specially constructed peel glue layer.
FIG. 4 a sectional representation under a) to d) of an embodiment in which
REFERENCES:
patent: 2896351 (1959-07-01), Johnson
patent: 3252234 (1966-05-01), Goodman
patent: 4890862 (1990-01-01), Buchholz
patent: 5039652 (1991-08-01), Doll et al.
patent: 5271787 (1993-12-01), Hoffmann et al.
patent: 5439255 (1995-08-01), McIntire
patent: 5466013 (1995-11-01), Garrison
Ahmad Nasser
Folien Fischer AG
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