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WO1993013942A1 - Process for laminating protective plastic films onto paper documents - Google Patents

Process for laminating protective plastic films onto paper documents Download PDF

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Publication number
WO1993013942A1
WO1993013942A1 PCT/IT1992/000015 IT9200015W WO9313942A1 WO 1993013942 A1 WO1993013942 A1 WO 1993013942A1 IT 9200015 W IT9200015 W IT 9200015W WO 9313942 A1 WO9313942 A1 WO 9313942A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
document
writing
impregnated
pressure
Prior art date
Application number
PCT/IT1992/000015
Other languages
French (fr)
Inventor
Francesco Bosisio
Original Assignee
Francesco Bosisio
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
Application filed by Francesco Bosisio filed Critical Francesco Bosisio
Publication of WO1993013942A1 publication Critical patent/WO1993013942A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
    • B32B37/182—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only one or more of the layers being plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B32B37/1292—Application of adhesive selectively, e.g. in stripes, in patterns
    • 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
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • 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
    • B42D5/00—Sheets united without binding to form pads or blocks
    • B42D5/02—Form sets
    • B42D5/021—Cheque-books
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0208—Indicia
    • G09F2003/021—Indicia behind the front foil
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0255—Forms or constructions laminated

Definitions

  • the invention concerns a chemico-phys ical process aimed at preventing attempts to counterfeit documents on paper. It is well known that writing on such documents, especially writing on bank cheques, can be erased and replaced by different writing thus enabling illegal withdrawals to be made from current accounts held by banks, or making possible other operations of an unlawful kind.
  • Purpose of the invention is to ensure better protection for cheques and at the same time simplify the method of doing it, as will be explained below.
  • Subject of the invention is a process for protecting hand written or printed writing on documents made on paper, especially bank cheques and the like.
  • Pressure can be applied to the sheet laid over the document by a rigid blade or some other suitable means, or even by the fingers only.
  • the impregnated sheets can be inserted in the cheque banks between one cheque and the next, and associated to a second protective sheet of paper or some unimpregnated material which is detached when the operation is completed, the purpose of this being to avoid any accidental premature chemical reaction between the impregnated surface and the cheque itself.
  • the above second sheet would preferably consist of an extension of the first sheet, of practically the same length, folded back against the impregnated surface until required.
  • said extension can be unfolded to free the impregnated surface and enable it to adhere to the completed cheque.
  • the second protective sheet can then be detached by tearing along a prepared tear-off line.
  • the chemical could be applied by superimposing over the document a sheet of flexible plastic material impregnated on the superimposing surface with a copolymer thermoplastic polymer of reticulated polyvinyl acetate that turns fluid under heat and hardens when it cools.
  • Simultaneous generation of heat and pressure on the impregnated sheet superimposed over the document to be protected may occur by passing the document and said sheet between a pair of parallel rollers, at least one of which is heated by electric elements, and making them rotate manually or by some automatic means.
  • the pair of rollers may be supported by a box-shaped structure to stand on a table, at least one of the two rollers being connected to the shaft of an electric motor worked by push buttons.
  • Electric feed can be supplied independently by batteries mounted inside the structure, or obtained by plugging it into the mains.
  • Simultaneous generation of heat and pressure on the impregnated sheet superimposed over the document to be ptotected may take place by passing a hand-pressed roller across the impregnated sheet whose active side is superimposed over the document laid out on a flat surface, said roller projecting from a hand-held pocket-sized structure and being heated from inside by electric elements, or else using a rigid body and heat conductor placed at the end of a pocket-sized structure that can be held in the hand or in any case having a handle.
  • Heating elements are contained inside said body.
  • chemicals can be applied to the document by an atomized spray, the document having been previously covered by a stencil with windows cut into it so as to expose only those parts to be chemically treated, especially the amounts and other essential indications , so ap ⁇ lication of chemical may be limited to those parts.
  • the chemicals comprise polymervinylaerylic, phthalie ester, fluoridized wax, ketonic diluent: and chlorinated solvent.
  • the approximate percentages considered most suitable are: polymervinylacrylic 30%, phthalie ester 4%, fluoridized wax 7 % , ketonic diluent 50%, chlorinated solvent 9%.
  • Examples of execution Fig. 1 A book cf current account bank cheques comprising sheets coated with chemicals, in perspective.
  • Fig. 3 A book of current account bank cheques comprising sheets coated with a layer of chetnicais, protected by an extension of said sheets folded back, when a cheque is being compiled, in perspective.
  • Fig. 4 The cheque book in Fig. 3 when the compiled cheque.
  • Fig. 6 A cheque book during sprayed application of chemicals on parts of the documents.
  • the current account cheque book 10 i n F i g . 1 c omp r i s e s t h e cheque s 1 1 1 2 1 3 a s s o c i a t ed t o sh eets 15 16 17.
  • thermoplastic layer hard at ambient temperature, which turns fluid under heat and hardens again when cool.
  • the cheque 11 and the sheet 15 are both detached from the cheque book 10 and are placed as a pair in the table-supported machine 20 in Fig. 2, and rested on the shelf 21 made to receive them.
  • Said machine comprises a box-shaped structure 22 with sides
  • Said shafts are kinetically connected by the pair of gear wheels 29 and 30.
  • the shaft 27 is connected to the ratiomotor 31 with an electric motor.
  • Electric heating elements 33 inside the cylinder 25 are connected to a system of rotating collectors 37.
  • Electricity is supplied from the mains by the cable 36.
  • the electric heating elements are operated by button switch
  • thermoplastic polymer As the pair 11-15 pass through the rollers, the simultaneous application of heat and pressure on sheet 15 causes the thermoplastic polymer to become fluid and become incorporated both in the writing and in the paper under it and producing, when subsequently cooled, a practically single body.
  • the cheque book 41 in Fig. 3 comprises the cheques 42 43 44 and sheets 45 46 47 inserted between them whose side
  • Said sheets 45 46 47 have an extension 48 folded back inside along the edge 45' in order to protect the unused cheques from any chemical action that might come from the impregnated surface.
  • the extension 48 is removed thus freeing the impregnated side of the sheet 45 which is then placed in contact with the cheque 42, as can be seen in Figure 4.
  • a blade or something similar to exercise pressure across the sheet 45 placed over the cheque 42 a chemical reaction is set up between the functional groups of the polymer (N-C-O) and those of the cellulose (O-H) incorporating both the writing and the paper base and giving rise to a kind of cold plasticization or to a practically single body.
  • Fig. 5 shows a pocket-sized machine 50 serving the same purpose as the table-supported machine 20 already described.
  • Said machine 50 comprises a flat box-shaped structure 51 and has a semicylindrical head 52 on the smaller side.
  • This structure contains the electric batteries 53 54 connected by means of the switch 54 to electrical heating elements 55 placed within the semicylindrical body 56 made of heat conducting cement.
  • Said head is covered with a metal lamination 57.
  • Fig. 6 illustrates a mode of applying the chemical mixture as invented by means of an atomized spray of said mixture.
  • the product from the can 76 is then sprayed on as indicated by 86 and in its atomized form will cover the zones 82-85 producing the effects described above.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Collating Specific Patterns (AREA)
  • Paper (AREA)

Abstract

Process for protecting hand-written or printed writing on documents (42-44) made on paper, especially bank documents and the like, by means of superimposition over the parts to be protected of a flexible sheet (45-47) impregnated with an acrylic modified polyurethane polymer, and by generation of pressure so as to determine, by a kind of cold plasticization process, stable association of said sheet (45-47) on the document (42-44) making it impossible to erase in an illegal manner the writing on the document and addition of new counterfeited writing.

Description

PROCESS FOR UMINATING PROTECTIVE PLASTIC FILMS ONTO PAPER DOCUMENTS
The invention concerns a chemico-phys ical process aimed at preventing attempts to counterfeit documents on paper. It is well known that writing on such documents, especially writing on bank cheques, can be erased and replaced by different writing thus enabling illegal withdrawals to be made from current accounts held by banks, or making possible other operations of an unlawful kind.
In trying to deal with this risk attempts have been made to spread chemicals on cheques so as to fix the writing more firmly onto the paper, but many problems arise over applying this method to large numbers of cheques and it is not believed to be a really secure way of eliminating the forgeries that at present occur.
Purpose of the invention is to ensure better protection for cheques and at the same time simplify the method of doing it, as will be explained below.
Subject of the invention is a process for protecting hand written or printed writing on documents made on paper, especially bank cheques and the like.
On these documents, especially on those parts requiring protection, application is made of means able to prevent removal of writing and also to repel any new writing, whether hand or printed, inserted to counterfeit what was originally there.
This is done by making a sheet of flexible plastic material adhere to the document and especially to those parts of it needing protection, the face of said plastic sheet to be so superimposed having been impregnated with an acrylic modified polyurethane polymer, after which adequate pressure is applied to said sheet.
This pressure bonds the functional groups of the polymer (N-C-O) to those of the cellulose (O-H) thus creating a stable association between said sheet and the document by means of what amounts to cold plasticization.
In this way it becomes impossible to remove the p ro t ec ted writ ing and replace i t by c ounte r fe it ed writing without at the same time removing a layer of the paper so making the fraud obvious.
Pressure can be applied to the sheet laid over the document by a rigid blade or some other suitable means, or even by the fingers only.
By applying pressure together with heat the plastic sheet will adhere more quickly to the document to be protected. Preferably the impregnated sheets can be inserted in the cheque banks between one cheque and the next, and associated to a second protective sheet of paper or some unimpregnated material which is detached when the operation is completed, the purpose of this being to avoid any accidental premature chemical reaction between the impregnated surface and the cheque itself.
The above second sheet would preferably consist of an extension of the first sheet, of practically the same length, folded back against the impregnated surface until required. When the cheque has been filled up said extension can be unfolded to free the impregnated surface and enable it to adhere to the completed cheque.
The second protective sheet can then be detached by tearing along a prepared tear-off line.
Alternatively the chemical could be applied by superimposing over the document a sheet of flexible plastic material impregnated on the superimposing surface with a copolymer thermoplastic polymer of reticulated polyvinyl acetate that turns fluid under heat and hardens when it cools.
Therefore by simultaneously applying heat and pressure to the impregnated sheet superimposed over the document to be protected, said polymer becomes incorporated in both the writing and the paper underneath making it impossible to put new counterfeited writing or remove the protected writing altready there without at the same time taking off a layer of paper and exposing the attempted fraud.
Simultaneous generation of heat and pressure on the impregnated sheet superimposed over the document to be protected may occur by passing the document and said sheet between a pair of parallel rollers, at least one of which is heated by electric elements, and making them rotate manually or by some automatic means.
The pair of rollers may be supported by a box-shaped structure to stand on a table, at least one of the two rollers being connected to the shaft of an electric motor worked by push buttons. Electric feed can be supplied independently by batteries mounted inside the structure, or obtained by plugging it into the mains.
Simultaneous generation of heat and pressure on the impregnated sheet superimposed over the document to be ptotected may take place by passing a hand-pressed roller across the impregnated sheet whose active side is superimposed over the document laid out on a flat surface, said roller projecting from a hand-held pocket-sized structure and being heated from inside by electric elements, or else using a rigid body and heat conductor placed at the end of a pocket-sized structure that can be held in the hand or in any case having a handle.
Heating elements are contained inside said body.
Alternatively chemicals can be applied to the document by an atomized spray, the document having been previously covered by a stencil with windows cut into it so as to expose only those parts to be chemically treated, especially the amounts and other essential indications , so apυlication of chemical may be limited to those parts.
The chemicals comprise polymervinylaerylic, phthalie ester, fluoridized wax, ketonic diluent: and chlorinated solvent.
The approximate percentages considered most suitable are: polymervinylacrylic 30%, phthalie ester 4%, fluoridized wax 7 % , ketonic diluent 50%, chlorinated solvent 9%.
Characteristics and purposes of the invention will become still clearer from the example, of its execution given here below, illustrated by diagrammatic flgures.
Examples of execution Fig. 1 A book cf current account bank cheques comprising sheets coated with chemicals, in perspective.
Fig. 2 Table supported machine for automatic chemico
-physical application of chemicals, in perspective. Fig. 3 A book of current account bank cheques comprising sheets coated with a layer of chetnicais, protected by an extension of said sheets folded back, when a cheque is being compiled, in perspective.
Fig. 4 The cheque book in Fig. 3 when the compiled cheque.
is being given a cold plasticization treatment, in perspective.
Fig. 5 Flat pocket-sized machine for chemico-physical application by hand of chemicals, in perspective.
Fig. 6 A cheque book during sprayed application of chemicals on parts of the documents.
The current account cheque book 10 i n F i g . 1 c omp r i s e s t h e cheque s 1 1 1 2 1 3 a s s o c i a t ed t o sh eets 15 16 17.
The inside face 18 of said sheets 15-17 is coated with a thermoplastic layer, hard at ambient temperature, which turns fluid under heat and hardens again when cool.
To compile the cheque 11 the sheet 15 has been raised as shown in the figure.
After compilation the cheque 11 and the sheet 15 are both detached from the cheque book 10 and are placed as a pair in the table-supported machine 20 in Fig. 2, and rested on the shelf 21 made to receive them.
Said machine comprises a box-shaped structure 22 with sides
23 and 24 that idly support the rollers 25 and 26 with parallel shafts 27 and 28 placed side by side.
Said shafts are kinetically connected by the pair of gear wheels 29 and 30. The shaft 27 is connected to the ratiomotor 31 with an electric motor.
Electric heating elements 33 inside the cylinder 25 are connected to a system of rotating collectors 37.
Electricity is supplied from the mains by the cable 36.
The electric heating elements are operated by button switch
34 and the electric motor by button switch 35.
To work the machine switches 34 and 35 are pressed to turn on heat and start the rollers rotating, and the already mentioned pair 11-15 of the cheque 11 and thermoplastic-coated sheet 15 are placed on the shelf 21 and pushed against the rollers through the aperture 39.
As the pair 11-15 pass through the rollers, the simultaneous application of heat and pressure on sheet 15 causes the thermoplastic polymer to become fluid and become incorporated both in the writing and in the paper under it and producing, when subsequently cooled, a practically single body.
The cheque book 41 in Fig. 3 comprises the cheques 42 43 44 and sheets 45 46 47 inserted between them whose side
49, facing the cheque, is impregnated with an acrylic modified polyurethane polymer. Said sheets 45 46 47 have an extension 48 folded back inside along the edge 45' in order to protect the unused cheques from any chemical action that might come from the impregnated surface.
To compile the first cheque 42 the first impregnated sheet 45 has been raised, as shown in the figure.
After compiling the cheque as usual the extension 48 is removed thus freeing the impregnated side of the sheet 45 which is then placed in contact with the cheque 42, as can be seen in Figure 4. Using the fingers, a blade or something similar to exercise pressure across the sheet 45 placed over the cheque 42, a chemical reaction is set up between the functional groups of the polymer (N-C-O) and those of the cellulose (O-H) incorporating both the writing and the paper base and giving rise to a kind of cold plasticization or to a practically single body.
Fig. 5 shows a pocket-sized machine 50 serving the same purpose as the table-supported machine 20 already described. Said machine 50 comprises a flat box-shaped structure 51 and has a semicylindrical head 52 on the smaller side. This structure contains the electric batteries 53 54 connected by means of the switch 54 to electrical heating elements 55 placed within the semicylindrical body 56 made of heat conducting cement.
Said head is covered with a metal lamination 57.
On closing the switch 54 the electric elements transmit heat through the body 56 to the metal lamination 57.
By taking hold of the machine by its end 58 opposite to the head and closing the switch 54, the chemico-physical reaction takes place on the cheque-thermoplastic sheet pair 11-15, already described, by pressing the element- -heated head 52 on the back of sheet 15 as shown in the figure.
Fig. 6 illustrates a mode of applying the chemical mixture as invented by means of an atomized spray of said mixture.
To do this use is made of the rectangular stencil 70 with windows 71 72 73 74 cut in it corresponding to the positions of the writing on the cheque to be protected. Said stencil 70 is laid over the cheque 81 in the cheque book 80 making the windows 71-74 coincide with the zones 82-85 on the cheque already filled up with the amount in figures and letters and with the payee's name.
The product from the can 76 is then sprayed on as indicated by 86 and in its atomized form will cover the zones 82-85 producing the effects described above.

Claims

1. Process for protecting hand-written or printed writing on a paper document (11-13) (42-44), especially bank cheques and the like,
characterized in that on said documents ( 11-13) (42-44) and especially on the parts (82-85) to be protected, means of protection (15-17) (45-47) are applied able to hinder removal of said writing and at the same time to repel any fresh counterfeited hand-written or printed writing.
2. Process as in claim 1,
characterized in that application of said means is made by causing adherence to the document (42-44), and especially to those parts (82-85) to be protected, of a sheet (45-47) of flexible plastic material impregnated on the superimposing face (49) with an adhesive film-producing substance such that by creating adequate pressure on said sheet (45- 47), a stable association is determined between this latter and the document (42-44) making it impossible to add fresh counterfeited writing or to remove the protected writing without at the same time removing a layer of the paper underneath and making the forgery obvious, it being possible to generate the above pressure by sliding a rigid blade or some other suitable means, even the fingers of the hand, over the sheet (45-47) laid over the document (42-44).
3. Process as in claim 2,
characterized in that pressure and heat are applied simultaneously when carrying out the process in order to increase the speed of adhesion.
4. Process as in claim 1,
characterized in that application of said means is made by causing adherence to the document (42-44) and especially to the parts (82-85 )to be protected, of a sheet (45-47) of flexible plastic material impregnated on the superimposing face (49) with an acrylic modified polyurethane polymer and by creating adequate pressure on said sheet thus bonding the functional groups of the polymer (N-C-O) to those of the cellulose (O-H) and therefore securing stable association between said sheet (45-47) and the document (42-44) obtaining what amounts to cold plasticization of said document (42-44) making it impossible to place there new counterfeited writing or remove the protected writing, without simultaneously removing a layer of the paper underneath as well and showing up the forgery, it being possible to generate the above pressure by sliding a rigid blade or some other suitable means over the sheet (45-47) superimposed on to the document (42-44), or even using the fingers of the hand for this purpose.
5. Process as in claim 2,
characterized in that the impregnated sheets (45-47) are inserted in the current account cheque book (41 ) between one cheque and another (42-44) and are associated to a second protective sheet (48) made of paper or of some other unimpregnated material, to be detached when necessary, the purpose of this being to prevent premature accidental adhesion between the impregnated face (49) and the cheque
(42-44), said second sheet (48) being preferably obtained from an extension of the free end of the first sheet (45-47) of practically the same length as this latter, folded back in contact with the impregnated face (49) to avoid contact between said latter face and the cheque (42-44), so that after the cheque has been completed the second protective sheet (48) can be unfolded and detached, if necessary along a prepared tear-off line, to allow the impregnated face (49) to adhere to the document (42-44).
6. Process as in claim 1,
characterized in that application of the protective means is made by superimposing over the document a sheet (15-17) of flexible plastic material impregnated on the superimposing surface (18) with a copolymer thermoplastic polymer of reticulated polyvinyl acetate that turns fluid under heat and hardens when subsequently cooled and by simultaneous generation on the impregnated sheet (15-17) of heat and pressure, thus obtaining incorporation of said polymer into both the writing and the paper under it and makking impossible the addition of fresh counterfeited writing or erasure of the protected writing without at the same time removing a layer of the paper underneath and making the forgery obvious.
7. Process as in claim 6,
characterized in that simultaneous generation of heat and pressure on the impregnated sheet (15-17) is attained by introduction of the document (11-13) together with said sheet (15-17) between a pair of parallel rollers (25-26), at least one of which is heated by electric elemente (33), made to rotate by hand or automatically.
8. Process as in claim 6,
characterized in that simultaneous generation of heat and pressure on the impregnated sheet (15-17) is attained by a roller being pressed across it by hand, said roller emerging from a hand-held pocket-sized structure which has electrie heating elements inside it.
9. Process as in claim 6,
characterized in that simultaneous generation of heat and pressure on the impregnated sheet (15-17) is due to the effect of passage under pressure over said impregnated sheet superimposed upon the document (11-13) laid on a flat surface, of a rigid heat-conducting body (56) on the end of a pocket-sized structure (51) held by hand or at any rate furnished with a handle (58), electric heating elements (55) being placed inside said body (56).
10. Process as in claim I,
characterized in that application of the means of protection is made by an atomized spray (86) of chemicals there having been previously placed on the document (81) a protective stencil (70) in which windows (71-74) are cut to fit over the essential zones (82-85) to be protected, the purpose of this being to limit application of chemicals to such essential zones.
11. Process as in claim 10),
characterized in that the chemicals comprise polymervinylacrylic, phthalie ester, fluoridized wax, ketonic diluent and chlorinated solvent, said chemicals preferably corresponding to the following formula in which the percentages are approximately indicated thus:
polymerviny lacrylic 30%, phthalie ester 4%, fluoridized wax 7%, ketonic diluent 50%, chlorinated solvent 9%.
PCT/IT1992/000015 1992-01-16 1992-02-14 Process for laminating protective plastic films onto paper documents WO1993013942A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI92A000068 1992-01-16
IT92MI000068A ITMI920068A1 (en) 1992-01-16 1992-01-16 PROCEDURE FOR THE PROTECTION OF WRITINGS ON PAPER DOCUMENTS IN SPECIFIC BANK CHECKS

Publications (1)

Publication Number Publication Date
WO1993013942A1 true WO1993013942A1 (en) 1993-07-22

Family

ID=11361563

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1992/000015 WO1993013942A1 (en) 1992-01-16 1992-02-14 Process for laminating protective plastic films onto paper documents

Country Status (3)

Country Link
AU (1) AU1330692A (en)
IT (1) ITMI920068A1 (en)
WO (1) WO1993013942A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995002512A1 (en) * 1993-07-16 1995-01-26 Francesco Bosisio Process for incorporating and protecting writing on paper documents, especially on bank cheques
WO1997010107A1 (en) * 1995-09-13 1997-03-20 Handelman, Joseph, H. Protecting an article
WO1998008681A1 (en) * 1996-08-26 1998-03-05 Tomas Meinen Process and device for manufacturing id cards
WO2002094577A1 (en) * 2001-05-18 2002-11-28 Giesecke & Devrient Gmbh Value document and method for the production thereof
FR2834373A1 (en) * 2002-01-03 2003-07-04 Arjo Wiggins Sa SELF-ADHESIVE OR THERMOSCELLABLE SECURITY INFORMATION MEDIUM AND METHOD FOR SECURING A SHEET OF A SECURITY DOCUMENT
GB2385298A (en) * 2002-02-19 2003-08-20 Rue De Int Ltd Method of preparing a security document having an unpigmented polyurethane coating
FR2841823A1 (en) * 2002-07-04 2004-01-09 Sequoias Securing laminated documents by printing code on laminate and document
FR2849405A1 (en) * 2002-12-30 2004-07-02 Eric Ayglon Check book, has self-adhesive protection film provided on in front of each check in binding, where check is equipped with strip for assisting tearing of check from book, and film is divided at height of precut check
FR2854346A1 (en) * 2003-01-02 2004-11-05 Guylain Boulay Document e.g. check, covering sheet, has laminated transparent sheet that is self-adhesive at its back connected to its counterfoil by precut zone, where self-adhesive back rests on front of support
RU2572126C2 (en) * 2009-05-12 2015-12-27 Гизеке Унд Девриент Гмбх Layer with hollow, susceptible to paint

Citations (12)

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FR1032615A (en) * 1950-11-28 1953-07-03 Laminated document
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FR1111609A (en) * 1954-09-16 1956-03-02 Process for making a document inviolable and unalterable and products obtained by process
US3027285A (en) * 1958-08-28 1962-03-27 American Photocopy Equip Co Office laminating machine
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WO1995002512A1 (en) * 1993-07-16 1995-01-26 Francesco Bosisio Process for incorporating and protecting writing on paper documents, especially on bank cheques
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WO1998008681A1 (en) * 1996-08-26 1998-03-05 Tomas Meinen Process and device for manufacturing id cards
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