EP1079978A1 - Formulaire scelle par pression - Google Patents

Formulaire scelle par pression

Info

Publication number
EP1079978A1
EP1079978A1 EP99922348A EP99922348A EP1079978A1 EP 1079978 A1 EP1079978 A1 EP 1079978A1 EP 99922348 A EP99922348 A EP 99922348A EP 99922348 A EP99922348 A EP 99922348A EP 1079978 A1 EP1079978 A1 EP 1079978A1
Authority
EP
European Patent Office
Prior art keywords
adhesive
pressure seal
cut
form according
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99922348A
Other languages
German (de)
English (en)
Inventor
Philip Miles Printing Specialities Co. HARDY
Peter Greenway
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Davidson Allan Fleming
Original Assignee
Davidson Allan Fleming
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GBGB9810941.6A external-priority patent/GB9810941D0/en
Application filed by Davidson Allan Fleming filed Critical Davidson Allan Fleming
Publication of EP1079978A1 publication Critical patent/EP1079978A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D15/00—Printed matter of special format or style not otherwise provided for
    • B42D15/02—Postcards; Greeting, menu, business or like cards; Letter cards or letter-sheets
    • B42D15/04—Foldable or multi-part cards or sheets
    • B42D15/08—Letter-cards or letter-sheets, i.e. cards or sheets each of which is to be folded with the message inside and to serve as its own envelope for mailing

Definitions

  • the form is designed as far as possible to be "tamper-evident".
  • the completion of the form i.e. the application of the sensitive information and the subsequent folding and sealing, is accomplished on an individual basis.
  • an individual may required to complete a questionnaire and return it in the post.
  • the sealing could be effected by the wetting of one or more adhesive areas which have been pre-printed on the form, following the writing in of the requested information and folding of the form.
  • the adhesive areas are one or more strips located near the periphery of the form, and when the form is folded the wetted adhesive is bonded to an opposed surface of the form.
  • This opposed surface does not normally require any special treatment.
  • the area containing the sensitive information is enclosed within the folded and sealed form by the adhered regions, and often also by one or more folds in the form, and information thereon cannot be obtained without opening the form.
  • Pressure seal adhesives are often natural and/or synthetic latexes or derivatives thereof. After application to a surface, for example by a printing process, a layer of this type of adhesive feels generally dry, or slightly tacky to the touch. It tends not to bond strongly to most commonly occurring materials, but does bond relatively strongly to another layer of the same adhesive, particularly when pressure is applied.
  • a pressure seal form will contain pressure seal adhesive so distributed that on folding the form areas of adhesive will come into contact with one another and form a seal when pressure is applied thereto.
  • the printed adhesive should be sufficiently dry so as not to interfere with the other steps in the preparation of the form, or in the completion of the form, while opposed strips should nevertheless provide a secure seal between opposed parts of the form after folding and sealing by applied pressure.
  • these two requirements are, to a significant extent, conflicting.
  • Many adhesive compositions which give a sufficiently strong bond under applied pressure give rise to printed areas which are excessively "wet" or tacky. They interfere with the other steps in form preparation and/or are very difficult to apply in the first case.
  • the invention provides an unsealed pressure seal form in which at least one surface of the form comprises one or more areas of pressure seal adhesive distributed such that when the form is folded in a predetermined manner at least two regions of pressure seal adhesive come into contact with each other, wherein in at least part of a said region the form is locally weakened.
  • the form may be weakened by being perforated or cut or partially perforated or cut; or by being creased, embossed, crimped, scratched or scuffed.
  • the invention also provides a method of preparing an unsealed pressure seal form comprising the steps of applying a layer of pressure seal adhesive to at least one area on at least one side of the form, and also locally weakening the form in at least a part of said area before during or after the application of said adhesive.
  • Figure 1 shows a first side of a typical pressure seal form prior to sealing
  • Figure 2 shows the second of the form of Figure 1
  • Figure 3 shows the form of Figures 1 and 2 folded prior to pressure sealing
  • Figures 4 and 5 show first and second pattern of partial cuts which could be used in the invention.
  • all the intelligible printed information appears on the side 1 of the Form shown in Figure 1, and the reverse side of the form 2 shown in Figure 2 contains only a meaningless printed design 3 and a message 4 that opening instructions are overleaf.
  • the side 1 of the form comprises an upper inner area 5 and a lower inner are 5' both of which are hidden when the form is folded and sealed, and which cannot be accessed without opening the form. These areas can contain printed matter, including any sensitive information, and they are spaced by a margin 5". There is a second inner area 6 which remains visible when the form is folded and sealed, suitable for containing a name and address, for example, or other non-sensitive information.
  • first horizontal fold line 7 extending across the centre of the margin 5" and a second horizontal fold line 8 in a margin dividing areas 5 and 6.
  • Both fold lines extend across the entire width of the form and comprise a series of perforations made partly or wholly through the thickness of the paper in known manner.
  • the positions of the fold lines are also marked by printed indices 9, 10 and they occur at or close to one third and two thirds of the height of the form.
  • Printed indices are provided for all these lines, as shown.
  • first surface 1 of the form at the top and bottom of the area 5 are applied horizontal stripes 17, 18 of pressure seal adhesive, and there are vertical stripes 19 of pressure seal adhesive in the margins adjacent the area 5.
  • the stripes 17, and 18, and the stripes 16 come into register when the form is folded about fold line 6 as in Figure 3, so that upon application of pressure the stripes seal together and the information on area 5 is sealed from view within the seals and fold.
  • a similar pattern of horizontal and vertical stripes 17', 18', 19' is provided on the surface 2 of the form so that formation of a fold along line 8 in a reverse direction 21 to that 20 of the fold 7, as in Figure 3, and application of pressure seals the lower part of the form to the rest of the form.
  • the pressure seal adhesive used in this type of application is conventionally a natural or synthetic latex or latex derivative or a mixture thereof.
  • most adhesives are either too weak, so that the form can be opened and resealed undetectably by a third party, or they are too tacky, thereby causing difficulties in the remainder of the form preparation system, or in the printing of the adhesive.
  • the perforating or cutting is only partially through the thickness of the paper. Most preferably, the perforating or cutting is effected only partially through the thickness of the paper from the side containing the associated adhesive region.
  • Cutting i.e. along elongate lines as opposed to punctiform perforation, is preferred to perforation as weakening the form more effectively.
  • the cutting is effected along lines which extend in at least two non-parallel directions, such lines either being discrete or connected.
  • the exact extent of cutting or perforation needs to be controlled so as to provide the necessary weakening without weakening the form to such an extent which could give rise to problems in the form completion system, for example separation or tearing and jamming in a printer or folder. This will clearly be controlled by the precise nature of the form substrate, the form design, and the pressure seal adhesive properties and distribution, inter alia.
  • the cutting or perforation may be effected simultaneously with the formation of the fold lines and tear strip lines, or before or after such step(s).
  • the pressure seal adhesive may be applied to the form at any stage during its preparation. Where, as is commonly the case, the prepared (but not completed) form contains printed matter, this is preferably applied prior to application of the adhesive.
  • the cutting or perforation is preferably performed prior to application of the adhesive, in which case it is believed it will tend to enter the cuts or perforations to an extent.
  • the adhesive could be applied before cutting/perforation. Clearly this is a further factor which will determine the extent to which cutting/perforation could and should be effected.
  • the cutting or perforation associated with the pressure seal areas may be performed at the same time or before or after the formation of the fold and fold/tear lines. However, for accuracy of location, it is preferred to effect some or all of these operations close to, and preferably just prior to, a sheeting or fan fold step, in which a continuous paper or other web is converted to individual form sheets, or to a continuous fan fold web, each part of the fan comprising a form.
  • the form substrate is preferably but not necessarily of paper.
  • the paper could be of the single wire type, but more preferably it is of the twin or multiple wire type, which has its own plane or planes of weakness in the thickness of the paper parallel to the paper surfaces, along which it will tend to tear if tampering occurs.
  • the paper could be treated with a polymer to increase water resistance and/or resistance to tearing across its entire thickness (as opposed to delamination in the case of a twin -wire paper for example), in which case the pressure seal adhesive area with cuts/perforations is preferably on the (inner form) surface opposed to the treated (outer form) surface.
  • Other known paper treatments e.g. the provision of a silicone layer on the outer form surface, are also possible.
  • Figures 4 and 5 show typical patterns of cuts to be formed in the adhesive regions.
  • the cut is continuous but has portions 22, 23 extending at an angle to each other, as shown at 90°.
  • An alternative would be a curved or meandering cut.
  • Figure 5 there are a number of discrete cuts distributed over the whole area of the adhesive strip, each composed of three sections 24, 25, 26 which extend in different directions.
  • Another possibility would be a pattern in which each cut is rectilinear, but at least two cuts extend in different directions (such as by separating the sections 24, 25 and 26.
  • the cuts/perforations may be provided in only one of two opposing adhesive regions, but are preferably present in both. Preferably the cuts/perforations are distributed over substantially the entire area of pressure seal adhesive, or at least over one half that area which complements or seals to the other half area when the form is folded and sealed.
  • the sealing or the ability of a sealed form to give evidence of any tampering, along one direction of the form (normally the sides of the form) is superior to that along the other direction (normally across the form). In part, this may be due to the fact that the sealing mechanism involves rollers which provide a longer dwell time for the sealing to take place in one direction rather than the other direction, so giving a stronger seal in the one direction.
  • another factor in this respect may be the preferred orientation of the paper fibres, which anisotropy will manifest itself in, for example, a preferred tearing direction.
  • the form can be produced as a blank (but optionally comprising agreed pre-printed matter) for supply to a user for entry of the sensitive matter, folding and sealing.
  • a printer or printers would be provided in such a system both for printing any predetermined matter and also for printing the sensitive information.
  • the order of application of the printed matter(s), the application of the pressure seal adhesive, and the provision of the various cuts/perforations/fold lines can be varied according to requirements.

Landscapes

  • Credit Cards Or The Like (AREA)
  • Making Paper Articles (AREA)

Abstract

Au moins une surface d'un formulaire (2) pouvant être scellé par pression présente une ou plusieurs zones de scellement par pression, distribuées de façon que quand ledit formulaire est plié d'une manière prédéterminée, au moins deux régions recouvertes d'adhésif autocollant (17, 18, 19) entrent mutuellement en contact. Le pouvoir adhésif de l'adhésif utilisé pour fabriquer ces formulaires (2) est un facteur très important pour faciliter leur production, ainsi que pour mettre en évidence une éventuelle tentative d'ouverture non autorisée, par exemple par déchirure du substrat papier d'un formulaire scellé. De nombreux adhésifs étaient jusque-là considérés comme insatisfaisants, entre autres parce qu'ils donnaient une liaison adhésif-adhésif suffisamment faible pour permettre l'ouverture d'un formulaire non affaibli sans indication concomitante d'une tentative d'ouverture. L'affaiblissement local du formulaire (2) dans au moins une partie desdites régions permet d'utiliser une plus grande variété d'adhésifs, notamment au moins certains de ceux qui étaient rejetés. L'affaiblissement peut se faire par découpure/perforation partielle ou totale ; éraflure, grattage, rayure ou abrasion ; rainage ou gaufrage.
EP99922348A 1998-05-22 1999-05-18 Formulaire scelle par pression Withdrawn EP1079978A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB9810941 1998-05-22
GBGB9810941.6A GB9810941D0 (en) 1998-05-22 1998-05-22 Pressure sealed forms
GB9813517 1998-06-24
GB9813517A GB2333060B (en) 1998-05-22 1998-06-24 Pressure sealed forms
PCT/GB1999/001576 WO1999061256A1 (fr) 1998-05-22 1999-05-18 Formulaire scelle par pression

Publications (1)

Publication Number Publication Date
EP1079978A1 true EP1079978A1 (fr) 2001-03-07

Family

ID=26313722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99922348A Withdrawn EP1079978A1 (fr) 1998-05-22 1999-05-18 Formulaire scelle par pression

Country Status (4)

Country Link
EP (1) EP1079978A1 (fr)
AU (1) AU3945099A (fr)
CA (1) CA2333110A1 (fr)
WO (1) WO1999061256A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809410A (en) * 1971-02-16 1974-05-07 Ibm Continuous card form
IT8209552A0 (it) * 1982-11-25 1982-11-25 Conti Romano Modulo per trasmissione postale, di ampia superficie, ripiegabile e sigillabile, atto ad essere formatoda modulo continuo
US5167739A (en) * 1991-11-21 1992-12-01 Moore Business Forms, Inc. Pressure seal multiple part

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9961256A1 *

Also Published As

Publication number Publication date
AU3945099A (en) 1999-12-13
WO1999061256A1 (fr) 1999-12-02
CA2333110A1 (fr) 1999-12-02

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