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EP0681920A1 - Positive Photoresistfolie für gegen Vervielfältigung und Fälschung geschützte Dokumente - Google Patents

Positive Photoresistfolie für gegen Vervielfältigung und Fälschung geschützte Dokumente Download PDF

Info

Publication number
EP0681920A1
EP0681920A1 EP95302774A EP95302774A EP0681920A1 EP 0681920 A1 EP0681920 A1 EP 0681920A1 EP 95302774 A EP95302774 A EP 95302774A EP 95302774 A EP95302774 A EP 95302774A EP 0681920 A1 EP0681920 A1 EP 0681920A1
Authority
EP
European Patent Office
Prior art keywords
background
latent images
line
meshes
ground patterns
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Withdrawn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
EP95302774A
Other languages
English (en)
French (fr)
Inventor
Hiroshi Miura
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.)
Mitumura Printing Co Ltd
Original Assignee
Mitumura Printing Co Ltd
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 Mitumura Printing Co Ltd filed Critical Mitumura Printing Co Ltd
Publication of EP0681920A1 publication Critical patent/EP0681920A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B41M3/146—Security printing using a non human-readable pattern which becomes visible on reproduction, e.g. a void mark
    • 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

Definitions

  • the present invention relates to a film positive sheet adapted for a copying-forgery countermeasure, and more specifically, to a film positive sheet having ground patterns for concealing a latent image or latent images so as to produce a print which is proof against forgery caused by copying.
  • the printing can be achieved with only one film positive sheet and thus the printing process is simple so that a product is obtained with reduced cost.
  • the latent images and the background are divided into sections by the fine blank pattern so that the fine blank pattern interferes with the latent images and the background on the obtained copy. This causes contrast between the latent images and the background to be unclear or poor so that the latent images are not clearly distinguishable from the background.
  • the latent images may be caused to disappear fully on the obtained copy.
  • the latent images can be visually distinguished with clear contrast between the latent images and the background.
  • the printing requires two film positive sheets due to the double printing and thus the printing process requires additional operations so that a product becomes correspondingly costly.
  • a film positive sheet adapted for a copying-forgery countermeasure comprises a substrate; and a latent image and a background formed on the substrate, one of the latent image and the background being formed of multi-lines of about 50-line 10%, the other of the latent image and the background being formed of meshes of about 150-line 10%; wherein the film positive sheet further includes ground patterns formed of meshes of about 175-line 10%, the ground patterns being incorporated all over the latent image and the background on the substrate so that a print is produced through a single printing operation.
  • Fig. 1 is a top plan view schematically showing the film positive sheet according to the preferred embodiment.
  • numeral 1 represents a printing film substrate.
  • latent images 2 representing "COPY" which are difficult to distinguish with the naked eye are formed.
  • numeral 3 representing a background.
  • ground patterns 4 are incorporated in the latent images 2 and the background 3 such that only the ground patterns 4 appear to be present on the substrate 1.
  • Fig. 2 is a partial enlarged view of Fig. 1 and shows the surface of the substrate 1 on an enlarged scale.
  • the latent images 2 are formed of oblique multi-lines
  • the background 3 is formed of non-pattern meshes
  • the ground patterns 4 are also formed of meshes.
  • the multi-lines of the latent images 2 are 50-line 10%
  • the meshes of the background 3 are 150-line 10%
  • the meshes of the ground patterns 4 are 175-line 10%.
  • the ground patterns 4 are formed all over the latent images 2 and the background 3 in a superimposed manner. Since the ground patterns 4 are superimposed on the latent images 2 and the background 3, the ground patterns 4 are recognized in a deep color tone.
  • Fig. 3 is a partial enlarged sectional view showing a print or a sheet of paper 10 on which a single printing is performed employing the foregoing film positive sheet shown in Figs. 1 and 2.
  • a print layer 11 including the latent images 2, the background 3 and the ground patterns 4 is formed on the paper 10.
  • a surface of the print looks in the same manner as that of the film positive sheet. Accordingly, the ground patterns 4 of the film positive sheet are visually recognized on the surface of the print in a light color tone and in coloring depending on an ink color so that the latent images 2 are not visually distinguishable from the background 3.
  • Fig. 4 is a top plan view showing a copy 20 obtained from the print shown in Fig. 3.
  • the latent images 2 appear distinctly, while the background 3 appears faintly and the ground patterns 4 do not appear.
  • the ground patterns 4 do not interfere with the latent images 2 and the background 3 on the obtained copy so that the latent images 2 are visually distinguishable with clear contrast between the latent images 2 and the background 3.
  • the ground patterns 4 are too deep in color, the ground patterns 4 are reproduced on the obtained copy 20 so as to interfere with the latent images 2 and the background 3 so that the latent images 2 are not visually distinguishable on the obtained copy 20.
  • the latent images 2 can be recognized with the naked eye on the print, that is, before copying.
  • the meshes of 175-line 10% have been confirmed through experiments to be excellent in view of the required role of the ground patterns 4.
  • the latent images 2 are formed of the multi-lines, and the background 3 of the meshes.
  • the latent images 2 may be formed of the meshes of 150-line 10%, and the background 3 of the multi-lines of 50-line 10%.
  • the latent images 2 are not reproduced in an ordinary color tone, while the background 3 is reproduced in a deep color tone. Accordingly, the latent images 2 are visually recognized with clear contrast therebetween.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
EP95302774A 1994-05-10 1995-04-25 Positive Photoresistfolie für gegen Vervielfältigung und Fälschung geschützte Dokumente Withdrawn EP0681920A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP620594U JP3010365U (ja) 1994-05-10 1994-05-10 コピー偽造対策用フィルムポジ原版
JP6205/94U 1994-05-10

Publications (1)

Publication Number Publication Date
EP0681920A1 true EP0681920A1 (de) 1995-11-15

Family

ID=11632040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95302774A Withdrawn EP0681920A1 (de) 1994-05-10 1995-04-25 Positive Photoresistfolie für gegen Vervielfältigung und Fälschung geschützte Dokumente

Country Status (4)

Country Link
EP (1) EP0681920A1 (de)
JP (1) JP3010365U (de)
CZ (1) CZ66195A3 (de)
FI (1) FI950548A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112616311A (zh) * 2018-10-25 2021-04-06 韩国造币公社 防伪用印刷品及其制造方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3495822B2 (ja) 1995-07-07 2004-02-09 共同印刷株式会社 複写防止印刷物
JP3495829B2 (ja) 1995-10-19 2004-02-09 共同印刷株式会社 複写防止印刷物およびその製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4780397A (en) * 1986-08-18 1988-10-25 Hosokawa Printing Co., Ltd. Process for preparing film positive sheets for forging-by-copying-proof prints and prints therefrom
GB2217258A (en) * 1988-03-24 1989-10-25 Suomen Pankin Setelipaino A security document with a warning pattern and a method for the preparation thereof
US5078428A (en) * 1990-12-03 1992-01-07 Hosokawa Printing Co., Ltd. Copy-proof sheet
US5149140A (en) * 1991-03-11 1992-09-22 The Standard Register Company Security, information document
EP0522827A1 (de) * 1991-07-12 1993-01-13 The Standard Register Company Sicherheitsdokument mit variierender Tönung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4780397A (en) * 1986-08-18 1988-10-25 Hosokawa Printing Co., Ltd. Process for preparing film positive sheets for forging-by-copying-proof prints and prints therefrom
GB2217258A (en) * 1988-03-24 1989-10-25 Suomen Pankin Setelipaino A security document with a warning pattern and a method for the preparation thereof
US5078428A (en) * 1990-12-03 1992-01-07 Hosokawa Printing Co., Ltd. Copy-proof sheet
US5149140A (en) * 1991-03-11 1992-09-22 The Standard Register Company Security, information document
EP0522827A1 (de) * 1991-07-12 1993-01-13 The Standard Register Company Sicherheitsdokument mit variierender Tönung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112616311A (zh) * 2018-10-25 2021-04-06 韩国造币公社 防伪用印刷品及其制造方法
CN112616311B (zh) * 2018-10-25 2022-05-10 韩国造币公社 防伪用印刷品及其制造方法

Also Published As

Publication number Publication date
JP3010365U (ja) 1995-05-02
CZ66195A3 (en) 1995-12-13
FI950548A (fi) 1995-11-11
FI950548A0 (fi) 1995-02-08

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