WO2000032874A1 - Uncoated paper comprising a pseudo-watermark and method for making same - Google Patents
Uncoated paper comprising a pseudo-watermark and method for making same Download PDFInfo
- Publication number
- WO2000032874A1 WO2000032874A1 PCT/FR1999/002947 FR9902947W WO0032874A1 WO 2000032874 A1 WO2000032874 A1 WO 2000032874A1 FR 9902947 W FR9902947 W FR 9902947W WO 0032874 A1 WO0032874 A1 WO 0032874A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- paper
- zones
- zone
- uncoated
- rest
- Prior art date
Links
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
- B41M3/10—Watermarks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/24—Pressing or stamping ornamental designs on surfaces
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/02—Patterned paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
- D21H27/32—Multi-ply with materials applied between the sheets
Definitions
- the present invention relates to an uncoated paper comprising at least one pseudo-watermark consisting of a mark giving the said paper a visual effect and a texture resembling that of a watermark.
- the present invention also relates to a method of manufacturing an uncoated paper according to the invention.
- Watermark papers are generally used in the field of security papers such as means of payment such as banknotes or checks, letter-checks and official documents such as passports, identity cards, stamped papers, deeds notarized, or entry tickets to cultural or sporting events because the presence of the watermark limits the possibilities of reproduction by photocopying and counterfeiting, and offers a means of recognition and / or authentication of said paper.
- Watermark papers are also used in the field of personalized corporate papers, using the company's logo, name or brand as a watermark. It may turn out that these watermarked papers are requested in very low tonnages and / or in short manufacturing times.
- the "real" watermarks are obtained during the manufacture of the sheet of paper, in the wet part of the paper machine, by round shapes comprising imprints or embossings in hollow and / or in relief or using watermark rollers with embossing and / or embossing associated with a flat table (Fourdrinier machine).
- a pattern is then obtained which includes light areas, when looking at the sheet of paper by observation in transmitted light, if the prints are made in relief, or dark or shaded areas, if the prints are made in hollow.
- the light areas are due to the fact that the thickness of the sheet and the quantity of fibers (areal mass) are smaller in the areas corresponding to the imprints than in the rest of the paper sheet.
- the dark areas are due to the fact that the thickness of the sheet and the quantity of fibers are greater in the areas corresponding to the imprints.
- These wet part watermarking methods imply costly means of implementation specific for each type of watermark such as the watermark rollers which are produced by etching the watermark motif and therefore do not offer the necessary flexibility from an economic point of view and also desired by applicants for a custom watermark to make watermark papers in small quantities.
- W097 / 17493 has described papers coated with pseudo-watermarks resulting from a variation in the layer weight applied in determined zones which induces a variation in thickness and opacity in the said zones where the layer weight is reduced or increased.
- An object of the present invention is to provide an uncoated paper comprising pseudo-watermarks consisting of marks which locally modify the physical characteristics of the paper such as its mass volume and therefore certain properties such as its thickness and possibly its opacity.
- Another object of the present invention is to provide an uncoated paper having pseudo-watermarks consisting of marks which create a shade contrast with the rest of the sheet of paper.
- Another object of the present invention is to provide an uncoated paper comprising pseudo-watermarks produced without recourse to the application of a varnish on its surface so that the composition of the paper in the areas constituting the pseudo-watermark is not not significantly changed.
- Another object of the present invention is to provide uncoated paper with pseudo-watermarks whose usage properties, in particular the printability properties in the areas of the surface of the paper corresponding to said marks, are not significantly altered compared to other areas not marked by a so-called paper watermark.
- Another object of the present invention is to provide an uncoated paper having pseudo-watermarks which can be produced in variable and small quantities under more economical conditions than by the processes of the prior art and which can be obtained in widths and quantities independent of the characteristics of the paper machine, in particular by a process whose use of the machines does not modify the operation of manufacturing the paper proper.
- Another object of the present invention is to provide an uncoated paper having a pseudo-watermark in which said watermark is produced after the last manufacturing operation, that is to say at the outlet of the dryer, possibly on the finished paper, c is to say off-line manufacturing.
- the present invention provides an uncoated paper comprising at least one mark resembling a watermark, characterized in that one or more determined zone (s) of the paper have a reduction in thickness compared to the rest of the paper.
- the surface mass in the said zone or zones of the paper being identical to that of the rest of the paper.
- the grammages are identical in the said zone or zones and in the rest of the paper, it being understood that the variation in weight which may result from the presence of an additive not evaporated from the rewetting solution is not significant.
- the one or more zones have a reduction in opacity relative to the rest of the paper.
- the said zone or zones have a color, in particular a shade and / or a brightness, different from that of the rest of the paper.
- the paper may have a reduction in thickness and opacity in the said zone or zones relative to the rest of the paper.
- the paper can present, in the said zone or zones, agents chosen from coloring agents, fluorescent agents, fluorescence inhibiting agents, agents allowing recognition or authentication. These agents may have been deposited by incorporating the re-wetting solution, described below, containing them and may have remained after evaporation of the solution. Anti-forgery or authentication agents are well known to those skilled in the art in the field of fiduciary and security papers.
- the paper can comprise two or more fibrous jets.
- only one of the surface jets has a reduction in thickness and / or a difference in shade and / or brightness in the said zone or zones relative to the rest of the multi-jet paper.
- the paper can comprise two or more sheets of laminated paper.
- the lamination adhesive is colored.
- only one sheet of the laminated paper has a reduction in thickness and / or a difference in shade and / or difference in brightness in the said zone or zones relative to the rest of the laminated paper.
- the present invention also provides a method of manufacturing an uncoated paper having at least one mark resembling a watermark as described above, characterized in that said mark is produced after the step of drying the paper, or in particular outside papermaking line, by carrying out the steps in which: a) a rewetting solution is applied to at least one face of the uncoated paper, in one or more determined zone (s) then, b) a pressure and heat in said area (s) of rewetted uncoated paper so as to evaporate said solution and densify uncoated paper in said area (s) relative to the rest of the paper.
- uncoated paper means that the paper is not coated with a pigmented layer comprising at least fine mineral pigments, in particular kaolin and / or calcium carbonate, and at least one binder or adhesive. , in particular starch or latex, as well as, optionally, any additives commonly used by those skilled in the art, the function of which is to improve the rheological properties of the sauce and to confer particular properties on the layer.
- the paper can be impregnated or surface treated with a non-pigmented composition such as a sizing composition, in particular to improve its printability, and / or its mechanical resistance and / or its resistance to soiling and / or its bactericidal properties.
- a non-pigmented composition such as a sizing composition
- rewetted paper is meant that, in the said zone or zones, the rewetting solution has penetrated inside the paper and has not yet evaporated.
- said rewetting solution is evaporated and the paper is densified in the areas where said solution was initially applied. This results in an increase in the density of the paper in said zones relative to the rest of the sheet of paper and more precisely a reduction in thickness with a surface mass identical to that of the rest of the paper.
- Said zones can then present an opacity contrast (reduction of opacity) and / or a color contrast, in particular of color nuance and brightness with the rest of the sheet of paper.
- the opacity of the paper is partly linked to the presence of air in the fibrous and / or pigmented interstices of the paper.
- the solution replaces the air in said interstices.
- the solution is evaporated and the fibers and / or pigments being densified, the air interstices generally occupy a reduced volume and in particular are found in a smaller quantity than initially, which generates deopacification.
- the densification of the paper comes from a reduction in thickness of the areas treated relative to the rest of the paper, the surface mass remaining constant relative to the rest of the paper.
- the surface mass is less in the light areas because the fibers deposited are in smaller quantity compared to the rest of the sheet.
- the surface mass is not constant because the weight of the layer is reduced in certain areas.
- Rewetting the paper makes it easier to rearrange the fibers and / or pigments during calendering.
- There may be additives in the rewetting solution which facilitate the rearrangement of the fibers and / or pigments and / or which promote the greater or lesser penetration of said solution into the paper.
- the method of the present invention can also create a change in the color of the paper in the said zone or zones when said re-wetting solution comprises a coloring agent, in particular a tinting coloring agent.
- a coloring agent in particular a tinting coloring agent.
- the color contrast in the said zone or zones can also result from the modification of the opacity in one of the surface jets when there is a difference in shade initially between said surface jet and the jet which is Hey.
- the method according to the present invention is applicable to all uncoated, white or colored papers, without limitation of grammage, possibly laminated or multijet.
- step (b) said pressure and said heat are applied by calendering the paper.
- the calender rollers can be heated, but in any event the friction produced by the calender generates heat.
- the calendering operation is carried out according to the present invention with calenders known to those skilled in the art.
- the calenders can be of the supercalender, soft calender type.
- the ridges and reliefs are more or less flattened when passing between the rollers and the sheet is densified.
- the purpose of calendering can also be to make surfaces shiny or satin.
- the calender rollers are made of hardened cast iron or steel, some of which can be covered with a fabric, cardboard or plastic for example to make elastic rollers.
- the supercalender which has a large number of rollers (of the order of 12 or more), is often located outside the machine due to maintenance, changing of the rollers and sheet breaks.
- the soft grille can be located on the paper machine, the number of rollers is lower and some are elastic.
- the boom is located on a machine and has a few rollers, often made of steel, and is not covered.
- the linear pressure exerted between the rollers on the paper is of the order of 0.5 to 5000 kN / cm.
- the temperature of the rollers when heated can be 50 to 300 ° C.
- the different calendering parameters such as the temperature, the hardness of the rollers, the coating, if any, of the rollers, the extent of the contact area between the rollers and the sheet as well as the pressure are chosen according to the nature of the desired final contrast.
- These different parameters are adapted as a function of the calendering speed, itself controlled by the speed of application of the rewetting solution.
- a calender comprising 2 to 6 rollers and if necessary with a plastic coating (for its impermeability to rewetting solution) is used.
- the mark may correspond to the said zone or zones and constitute a given pattern appearing in positive contrast with respect to the rest of the sheet of non-rewetted paper.
- the given pattern may appear as a negative contrast in so far as the mark corresponds to said remainder of the sheet of untreated paper, that is to say not rewetted initially.
- the said zone or zones may define a visual pattern under observation in transmitted light resulting from a reduction in opacity in the said zone or zones.
- the said zone or zones can also define a visual pattern by observation in reflected light resulting from a difference in color of the said zone or zones.
- step (a) is carried out on off-line production paper, that is to say on finished paper.
- the rewetting solution according to the invention can be applied using a rotogravure device comprising a rotogravure cylinder whose imprints or hollow cells have a shape such that they allow 'applying said rewetting solution according to a pattern corresponding to said mark in said zone or zones.
- the re-wetting solution is applied using a device of the type of those used in the ink jet printing processes, in particular the ink jet printing processes on a reel, it being understood that the 'said ink is replaced by said aqueous rewetting solution.
- Ink-jet printing devices in particular digital ink-jet printing devices, make it possible to create marks in various patterns which can be changed quickly and inexpensively from one production to another.
- Said rewetting solution may advantageously comprise a wetting agent so as to improve or accelerate the penetration of the solution into the paper.
- Said wetting agent may be advantageous, in particular according to the characteristics of the paper, in particular its porosity and the possible presence or not in the latter of a wetting agent and also according to the amount of re-wetting solution applied. By way of illustration, a quantity of 2 to 20 g / m 2 of rewetting solution can be applied.
- said rewetting solution is a solution of a hydrophilic polar solvent.
- the rewetting solution is an aqueous solution, the use of a non-aqueous solvent inducing additional costs and risks of pollution.
- a hydroalcoholic solution can be used as rewetting solution.
- an aqueous solution containing from 1 to 10% by volume of ethanol, in particular 2%, in water, or an aqueous solution containing from 1 to 10% by weight of 2-pyrrolidone, in particular 2% can be used. in water.
- the re-wetting solution may also contain additives such as dyes, in particular tinting dyes, fluorescent whitening agents (optical brighteners) or conversely fluorescence inhibiting agents as well as any additives known to those skilled in the art. art to allow the recognition or authentication of so-called security papers.
- the re-wetting solution may comprise an antifalsification agent or colorless authentication agent capable of being revealed by reaction with a determined co-reactant or under specific conditions.
- a Hewlett Packard Deskjet 560 C desktop printer is used fitted with a cartridge reference 51626A previously emptied of its ink, cleaned then filled with a rewetting solution consisting distilled water and 2% volume of ethanol, in order to rewet the papers below.
- the marks are in positive, unless otherwise specified, and the amount of rewetting solution provided, for a rewetted solid with a resolution of 600 ⁇ 300 dots per inch, and the so-called “coarse” screening conditions, so-called “mail” and so-called “normal” intensity control quality is around 12 g / m2.
- the papers, immediately rewetted, are passed through a laboratory calender with two rollers heated to 50 ° C, under a linear pressure of 3.0 kN / cm.
- EXAMPLE 1 OPACITY CONTRAST On a sheet of uncoated white paper of 80 g / m 2 in A4 format, marketed under the brand RG® of the company GUERIMAND SA, it is represented by rewetting and calendering according to the conditions given above. , a motif which is a character holding a closed umbrella in his hand, using MICROSOFT POWER POINT ® software. We obtain a paper with marks according to the pattern similar to a translucent shaded watermark. The variable thickness reduction in the treated area can be up to 40% compared to the rest of the paper.
- EXAMPLE 2 OPACITY CONTRAST
- EXAMPLE 3 OPACITY CONTRAST AND COLOR GAP (SHADE AND BRIGHTNESS)
- the motif is reproduced in two different places, according to an identity photograph of a person, according to the general conditions mentioned above, however for one of the reproductions (a), the dark parts of the photograph were made by rewetting, and for the other reproduction (b), the light portions of the photograph were rewetted, thus appearing in negative.
- the paper thus obtained is a security paper personalized by the double pseudo-watermark of identity photography which is recognized By direct vision, in reflected light, in the form of shade contrast, we observe ( at).
- EXAMPLE 5 An uncoated 170 g / m 2 bijet paper is produced on a laboratory form. One of the jets is white and has a grammage of 90 g / m 2 and the other jet is of green shade and also has a grammage of 80 g / m 2
- the reworking and calendering represents the motif of the character holding in his hand a closed umbrella, using the POWER POINT ® software from MICROSOFT.
- POWER POINT ® software from MICROSOFT.
- An uncoated laminated paper of 210 g / m 2 is produced by laminating two uncoated white papers having a basis weight of 90 g / m 2 using an adhesive based on poly (vinyl acetate) and comprising 3% by weight of a shading dye, VIOLET BB 200%.
- the reworking and calendering represents the motif of the character holding in his hand a closed umbrella, using the POWER POINT ® software from MICROSOFT.
- POWER POINT ® software from MICROSOFT.
- the pseudofiligrane is produced as in Example 7.
- a paper is obtained having marks according to the pattern similar to a translucent watermark but it has better visibility in transmitted light, since the amount of dye is less than that of the 'example 7.
- the rewetting solution consists of distilled water and 2% by weight of 2-pyrrolidone (98% purity). After calendering at 50 ° C a paper similar to that of Example 3, under a linear pressure of 1.0 kN / cm, a paper is obtained with a pseudo-watermark according to the invention, by shade contrast and opacity.
- EXAMPLE 12 On a soft grille with a small width, an inkjet printer printhead
- SCITEX 6240 was installed one meter from the calender rollers. Printing and calendering speed are synchronized.
- a rewetting solution for the paper a mixture of demineralized water and 5% by volume of ethanol is used.
- the grille consists of two rollers; one is made of steel and the counter roller has a plastic covering. These rollers are heated to 80 ° C and the linear pressure between the rollers is 2.5 kN / cm.
- the reel is unwound from a sheet of white paper, a pattern is made with the rewetting solution using the print head on the sheet, then the said sheet is passed between the two rollers of the calender.
- the running speed of the paper sheet is 20 m / min.
- the dry paper sheet has a thickness of 60 ⁇ m and has been densified in the rewetting zones by a thickness reduction of 16 ⁇ m.
- a paper is obtained with a pseudofiligrane according to the invention, by reduction of thickness.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU13916/00A AU1391600A (en) | 1998-12-01 | 1999-11-29 | Uncoated paper comprising a pseudo-watermark and method for making same |
EP99973085A EP1135556B1 (en) | 1998-12-01 | 1999-11-29 | Uncoated paper comprising a pseudo-watermark and method for making same |
BR9915844-2A BR9915844A (en) | 1998-12-01 | 1999-11-29 | Non-coated paper, containing a pseudofiligree and manufacturing process |
AT99973085T ATE237030T1 (en) | 1998-12-01 | 1999-11-29 | UNCOATED PAPER WITH AN IMITATED WATERMARK AND METHOD FOR PRODUCING IT |
DE69906789T DE69906789D1 (en) | 1998-12-01 | 1999-11-29 | UNPROCESSED PAPER WITH A REPRODUCED WATERMARK, AND METHOD FOR THE PRODUCTION THEREOF |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR98/15183 | 1998-12-01 | ||
FR9815183A FR2786510B1 (en) | 1998-12-01 | 1998-12-01 | UNCOATED PAPER HAVING A PSEUDO-FILIGRANE AND MANUFACTURING METHOD |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000032874A1 true WO2000032874A1 (en) | 2000-06-08 |
Family
ID=9533468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/002947 WO2000032874A1 (en) | 1998-12-01 | 1999-11-29 | Uncoated paper comprising a pseudo-watermark and method for making same |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1135556B1 (en) |
AT (1) | ATE237030T1 (en) |
AU (1) | AU1391600A (en) |
BR (1) | BR9915844A (en) |
DE (1) | DE69906789D1 (en) |
FR (1) | FR2786510B1 (en) |
WO (1) | WO2000032874A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2861101A1 (en) * | 2003-10-15 | 2005-04-22 | Arjo Wiggins | Multi-web security paper e.g. for banknotes or passports, has outer web with authentification element and inner one with reinforcing element |
US8951626B2 (en) | 2008-04-07 | 2015-02-10 | Sca Hygiene Products Ab | Hygiene or wiping product comprising at least one patterned ply and method for patterning the ply |
WO2015197617A1 (en) | 2014-06-23 | 2015-12-30 | Arjowiggins Security | Security papers and methods of manufacture |
WO2016163118A1 (en) * | 2015-04-06 | 2016-10-13 | セイコーエプソン株式会社 | Sheet manufacturing apparatus and sheet manufacturing method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4824486A (en) * | 1985-11-04 | 1989-04-25 | Westvaco Corporation | Simulated watermark printing system |
WO1997017493A1 (en) * | 1995-11-09 | 1997-05-15 | Mo Och Domsjö Ab | Surface treated security paper and method and device for producing surface treated security paper |
DE29714004U1 (en) * | 1997-08-06 | 1997-11-06 | Helmstreit Herbert | Means for ink jet printing of artificial watermarks |
-
1998
- 1998-12-01 FR FR9815183A patent/FR2786510B1/en not_active Expired - Fee Related
-
1999
- 1999-11-29 BR BR9915844-2A patent/BR9915844A/en not_active IP Right Cessation
- 1999-11-29 WO PCT/FR1999/002947 patent/WO2000032874A1/en active IP Right Grant
- 1999-11-29 AT AT99973085T patent/ATE237030T1/en not_active IP Right Cessation
- 1999-11-29 EP EP99973085A patent/EP1135556B1/en not_active Expired - Lifetime
- 1999-11-29 DE DE69906789T patent/DE69906789D1/en not_active Expired - Lifetime
- 1999-11-29 AU AU13916/00A patent/AU1391600A/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4824486A (en) * | 1985-11-04 | 1989-04-25 | Westvaco Corporation | Simulated watermark printing system |
WO1997017493A1 (en) * | 1995-11-09 | 1997-05-15 | Mo Och Domsjö Ab | Surface treated security paper and method and device for producing surface treated security paper |
DE29714004U1 (en) * | 1997-08-06 | 1997-11-06 | Helmstreit Herbert | Means for ink jet printing of artificial watermarks |
Non-Patent Citations (1)
Title |
---|
WALENSKI, W.: "Watermarks and Those That Are Not", DRUCKSPIEGEL 52, NO. 3: 66-68 (MARCH 1997). [GER.], XP002109409 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2861101A1 (en) * | 2003-10-15 | 2005-04-22 | Arjo Wiggins | Multi-web security paper e.g. for banknotes or passports, has outer web with authentification element and inner one with reinforcing element |
WO2005038135A1 (en) * | 2003-10-15 | 2005-04-28 | Arjowiggins | Multi-layer security paper |
US9464385B2 (en) | 2003-10-15 | 2016-10-11 | Arjowiggins Security | Multi-layer security paper |
US8951626B2 (en) | 2008-04-07 | 2015-02-10 | Sca Hygiene Products Ab | Hygiene or wiping product comprising at least one patterned ply and method for patterning the ply |
WO2015197617A1 (en) | 2014-06-23 | 2015-12-30 | Arjowiggins Security | Security papers and methods of manufacture |
WO2016163118A1 (en) * | 2015-04-06 | 2016-10-13 | セイコーエプソン株式会社 | Sheet manufacturing apparatus and sheet manufacturing method |
JPWO2016163118A1 (en) * | 2015-04-06 | 2018-02-01 | セイコーエプソン株式会社 | Sheet manufacturing apparatus and sheet manufacturing method |
US10428466B2 (en) | 2015-04-06 | 2019-10-01 | Seiko Epson Corporation | Sheet manufacturing apparatus and sheet manufacturing method |
Also Published As
Publication number | Publication date |
---|---|
ATE237030T1 (en) | 2003-04-15 |
EP1135556A1 (en) | 2001-09-26 |
DE69906789D1 (en) | 2003-05-15 |
EP1135556B1 (en) | 2003-04-09 |
BR9915844A (en) | 2002-01-15 |
AU1391600A (en) | 2000-06-19 |
FR2786510A1 (en) | 2000-06-02 |
FR2786510B1 (en) | 2001-02-16 |
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