CN107100033A - A kind of preparation method of false proof paper products - Google Patents
A kind of preparation method of false proof paper products Download PDFInfo
- Publication number
- CN107100033A CN107100033A CN201710420509.5A CN201710420509A CN107100033A CN 107100033 A CN107100033 A CN 107100033A CN 201710420509 A CN201710420509 A CN 201710420509A CN 107100033 A CN107100033 A CN 107100033A
- Authority
- CN
- China
- Prior art keywords
- fake material
- paper products
- false proof
- preparation
- proof paper
- 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.)
- Pending
Links
Classifications
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/50—Spraying or projecting
-
- 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
Abstract
The invention discloses a kind of preparation method of false proof paper products, comprise the following steps：1) anti-fake material is mixed with adhesive, medium, obtains anti-fake material mixture；The anti-fake material is powdery or the anti-fake material of liquid；2) the anti-fake material mixture for obtaining above-mentioned steps (1) loads the injection apparatus of the electric control with playpipe and injection syringe needle, paper machine operation, anti-fake material mixture is applied in the page set in advance of paper products by spraying syringe needle, this has discharged the page of anti-fake material mixture to discharge layer；3) during paper machine operation, the release position of the anti-fake material mixture is wet end or applying glue portion；4) after drying.This kind of false proof paper products not only enhance the antifalse effect of prior art, and have reached the function of orientation, and its preparation method is simple and convenient, it is easy to popularization and application.
Description
Technical field
The invention belongs to paper products field, and in particular to a kind of preparation method of false proof paper products.
Background technology
The method for anti-counterfeit of paper-based article is broadly divided into physics and chemical two classes method from discriminating principle, in bank note
Watermark, anti-counterfeiting line, the anti-false fiber that can directly see of naked eyes, the laser hologram of credit card, the invisible-bar-number of commodity etc. are belonged to
Physical security method, chemical method for anti-counterfeit is led by checking that chemical reaction occurs under certain condition for security component therein
Certain is caused to change (color change of such as certain privileged site) and show product feature.
Mainly there are anti-false fiber, Anti-counterfeit piece and false proof point etc. using more anti-counterfeit measures in paper substrate, these are false proof to arrange
Apply and typically all realized by being placed into copy paper process in paper substrate.Anti-counterfeit piece typically uses polyester plastics or metal base,
Their binding strengths with paper are poor, use and easily fallen off in circulating.Anti-false fiber, can according to different false proof needs
To be colored general fibre, color fluorescence material and colorless fluorescent fiber.Colored general fibre refers to directly be apparent in paper surface
Feature fiber, fluorescent fiber (colored and colourless) refers to the fiber for being difficult to discover is distributed with inside copy paper, in ultraviolet lighting
Penetrate lower presentation fluorescence or particular color.Consider from the antifalsification in circulation, the public character of colored general fibre is preferable, such as people
The red blue fiber used on coin bank-note paper, but antifalsification is poor (seeing that technology content has shown relatively low at present)；Fluorescent fiber is current
There are four kinds of yellow, blue, red and green fluorescence, it is using generally in bank-note paper, and the bank-note paper of the field of circulation is typically used
Yellow and blue are employed in one of which or two kinds of fluorescent fibers, such as RMB, red and green is employed in Euro, it is this
Method antifalsification preferably, has the disadvantage that public character is poor, it is necessary to special measuring means.
In paper production using anti-fake material for many years, the material once and used just has a variety of, such as：
Safety line, anti-false fiber, false proof disk, trace materials etc..The dispensing mode of use also has a variety of, and some of which has been employed
The mode of half positioning is discharged.Such as safety line, the release of false proof disk.The mode of so-called half positioning refers to only horizontal in paper machine
Positioned upwards, (longitudinal direction) uses continuous dispensing mode on traffic direction.Special type anti-false fiber discharges what is used at present
It is full version mode.In external bank-note paper in addition to using the safety line of half positioning, anti-false fiber, also applied using positioning
False proof pad pasting.
Paper is the main material of printing of bank note, and RMB paper Main Ingredients and Appearance is short velveteen, and paper is bright and clean, tough and tensile, resistance to
Folding, deflection are good, and have certain resistance to chemical corrosion, can in a long time using and be hardly damaged.It is provided with paper
Safety line is also the major measure of paper false proof.100 yuan of nineteen ninety version, 50 yuan of certificates have newly increased metallic airbag line, and it is to make
Add, be contained in bank-note paper during paper, rather than be imprinted in nominal value, meet x ray fluoroscopy x naked eyes and can be seen through on the right side of nominal value
In paper money paper.
RMB uses the anti-counterfeiting characteristic of ink.Ink is one of main composition composition in banknote printing, in RMB
On the anti-forgery ink that uses, substantially have gravure ink, fluorescent ink, three kinds of magnetic ink, the 4th set of RMB has used a variety of
Anti-forgery ink, such as colorless fluorescent ink, metameric ink, magnetic ink.Colorless fluorescent ink be it is a kind of itself without color,
But can send the ink of bright fluorescence under ultraviolet light, all useful this ink print of such as 100 yuan of nineteen ninety version, 50 yuan of certificates Ah
Arabic numbers and Chinese phonetic alphabet face amount, send yellow fluorescence high-visible under ultraviolet light.The ink of RMB is printed, is special
Ink, be very different with the common ink that in the market is sold.The raw material of this ink constitute it is more complicated, wherein pigment,
Inserts, drier etc. are all special manufactures.The modulation of various raw material and compatibility, there is know-how.For different
Printing equipment, the modulator approach and performance of ink is also different.
In recent years, with high-tech development, more convenient anti-fake material has been applied in the authentication technique of paper
In, but limited by base material, anti-fake material combined with paper it is poor, it is easily backing out from paper；And printing-ink or
Person receives many limitations in the printing method of other ink class anti-fake materials of paper products surface spraying, it is impossible to easily position very much,
This have impact on the antiforge function and antifalse effect of the special paper products such as bank-note paper to a certain extent, have impact on the quality of product.
Therefore, any addition of the anti-counterfeiting substances in specified location is realized in paper, will be the inexorable trend of the false proof level lifting of banknote.
In summary, a kind of release technique of anti-fake material in production applied to specialties is developed, had made its product both
The characteristics of can positioning release with metallic airbag line class anti-fake material, has the good spy of the antifalse effect of ink class anti-fake material again
Point, while avoiding the limitation that extraordinary anti-false fiber discharges the full version mode used at present, more causes the non-security false proof material of line class
Material is firmly combined with there is provided the false proof paper products and its preparation technology that anti-fake material is discharged in such a positioning with paper, and its is main
The release process of anti-fake material in being produced applied to specialties, has very actual meaning in specialties production.
The content of the invention
For problems of the prior art, the invention provides a kind of preparation method of false proof paper products, this kind is prevented
Pseudo- paper products not only enhance the antifalse effect of prior art, and have reached the function of orientation, and its preparation method is simple and convenient, easily
In popularization and application.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of preparation method of false proof paper products, is followed the steps below：
(1) anti-fake material is mixed with adhesive, medium, obtains the anti-fake material containing anti-fake material 25-35%wt and mix
Compound；The anti-fake material is powdery or the anti-fake material of liquid；The adhesive is starch, polyvinyl alcohol and its modified product, water
Property polyurethane or sodium carboxymethylcellulose；The medium is the solvent that water or viscosity are no more than 400mps；
(2) the anti-fake material mixture for obtaining above-mentioned steps (1) loads the electric control with playpipe and injection syringe needle
Injection apparatus, anti-fake material mixture is applied to the page set in advance of paper products by spraying syringe needle by paper machine operation
In, this has discharged the page of anti-fake material mixture to discharge layer；
(3) during paper machine operation, the release position of the anti-fake material mixture is wet end or applying glue portion；
(4) after drying.
Further, the false proof paper products are used to discharge anti-fake material.
Preferably, described anti-fake material is the anti-fake material containing solid particle, and described medium is water or acetone.
Further, described anti-fake material is the false proof material of the solid particle no more than 100 microns containing maximum particle diameter
Material.
Further, the described layer that discharges is located between two layers of page of the false proof paper products or page one side.
Further, the anti-fake material makes anti-fake material positioning be distributed in the paper products by injection apparatus
A certain position.
Further, the preparation method that the false proof paper products are used includes passing through the anti-fake material in l Water Paper portion
Paper pulp process of manufacturing paper with pulp is added into page, and false proof paper products are then made.
Further, described anti-fake material is to be no more than 100 microns of particle and/or with color containing maximum particle diameter
The liquid anti-fake material of feature.
Further, the release layer is the page containing anti-fake material.
The present invention has following beneficial effect：The anti-fake material of the present invention is added simultaneously in the l Water Paper portion of paper making technique
Injection can penetrate into and combine together with page into page, can breach full version according to predetermined very easily positioning release
Limitation, and with the page strong bonded of paper products, paper products intensity is not influenceed, moreover, the anti-counterfeiting technology application field extensively,
Available for technical fields such as false proof, encryptions, it can also be used to the paper industry such as security, bill, bank-note paper, paper can be effectively improved
The false proof level opened.More it can simultaneously use, more improve anti-with the anti-counterfeit measures such as safety line, watermark in bank-note paper production
Pseudo- technology content.
Embodiment
The embodiment of the present invention is further described with reference to embodiment, following examples are only used for more
Technical scheme is clearly demonstrated, and can not be limited the scope of the invention with this.
In embodiment below the present invention, the injection apparatus used has following characteristics：Will be anti-by compressed air
Pseudo- material blends are advanced in playpipe, and playpipe is controlled by a fine magnetic valve, and mixing material is by an injection
Syringe needle is ejected on page (paper web), can by designing the putting of syringe needle, combine or ECI electronic control injection realizes certain figure
Case.
Compressed air：Pressure is generally 2-5bar；
Fine magnetic valve：Generally extrusion pressing type magnetic valve；Reaction time should be with paper machine operation velocity adaptive, should be very fast, such as
Tens microseconds；The magnetic valve is by time controller control action；
The injection apparatus should include pressure pipe and flexible pipe, the pipe inside the pressure pipe communication apparatus and outside device
Road, it causes the anti-fake material mixture of the liquid in injection apparatus to withstand greater than from extraneous suction compressed air to device inside
The pressure of normal pressure, the caliber of the flexible pipe is generally external diameter 2-4mm, internal diameter 0.4-1.5mm, the flexible pipe provided with fine magnetic valve and
The anti-fake material mixture for spraying the liquid in syringe needle, injection apparatus reaches injection under the high pressure higher than normal pressure by the flexible pipe
Syringe needle is simultaneously ejected on page.
Embodiment 1：
The anti-fake material of use：Energy-saving luminous material sp-4 (the bright Science and Technology Co., Ltd. of manufacturer's Dalian Road)；
Adhesive：Starch；
Medium：The aqueous solution；
Above-mentioned adhesive and medium have collectively constituted dispersed phase：Amidin (wherein the concentration of starch be 2~
5%wt).
Its preparation method is followed the steps below：
(1) anti-fake material is mixed to get anti-fake material mixture with dispersed phase, and wherein anti-fake material accounts for 25%wt, with false proof
The weight for the anti-fake material mixture that material is obtained after being mixed with adhesive and medium is 100% meter；
(2) the anti-fake material mixture for obtaining above-mentioned steps (1) loads the electric control with playpipe and injection syringe needle
Injection apparatus, during paper machine operation, by spray syringe needle by anti-fake material mixture be applied to paper products in advance set
In fixed page, this has discharged the page of anti-fake material mixture to discharge layer；Anti-fake material mixture is through playpipe by one
Injection syringe needle be ejected on page, can by design spray syringe needle putting position, combination or ECI electronic control injection come
Realize pattern set in advance；
(3) during paper machine operation, the release position of above-mentioned anti-fake material mixture is in wet end；By to injection apparatus
Preset, the liquid flow of ejection will not both destroy l Water Paper page discharging the effect that layer reaches, will not also produce diffusion；By
After above-mentioned steps, false proof paper products are obtained, position of the anti-fake material in page is that, positioned at the surface of page, distribution patterns are
Arbitrarily, it is orientable.
Embodiment 2：
Anti-fake material：Temperature change powder (trade name：Temperature change powder)；
Adhesive：Starch；
Medium：The aqueous solution；
Above-mentioned adhesive and medium have collectively constituted dispersed phase：(wherein the concentration of starch is 5% to amidin
wt)。
Its preparation method is followed the steps below：
(1) anti-fake material is mixed with dispersed phase (concentration of dispersed phase is 2~5%), obtains anti-fake material mixing
Thing, wherein anti-fake material account for 30%wt, and the anti-fake material obtained after being mixed with anti-fake material with binder starch and WATER AS FLOW MEDIUM is mixed
The weight of compound is 100% meter；
(2) the anti-fake material mixture for obtaining above-mentioned steps (1) loads the electric control with playpipe and injection syringe needle
Injection apparatus, using twin cylinder machine, during paper machine operation, anti-fake material mixture is discharged by spraying syringe needle
Into the page set in advance of paper products, formed between two layers of page of paper products and discharge layer；
(3) during paper machine operation, the release position of above-mentioned anti-fake material mixture is in wet end；By to injection apparatus
Preset, the liquid flow of ejection will not both destroy l Water Paper page discharging the effect that layer reaches, will not also produce diffusion；By
After above-mentioned steps, false proof paper products are obtained, position of the anti-fake material in page is that, positioned at the surface of page, distribution patterns are
Arbitrarily, it is orientable.
Embodiment 3：
Anti-fake material：Fluorescent material (trade name：Fluorescent material)；
Dispersed phase：Using acetone soln, 5~40%wt of concentration of solid material in dispersed phase；
Its preparation method is followed the steps below：
(1) anti-fake material is mixed with scattered, obtains anti-fake material mixture, wherein anti-fake material accounts for 35%wt, with
The weight of anti-fake material mixture is 100% meter；
(2) the anti-fake material mixture for obtaining above-mentioned steps (1) loads with playpipe and sprays the automatically controlled of syringe needle
Injection apparatus, using twin cylinder machine, in paper machine operation by spray syringe needle anti-fake material mixture is applied to it is made of paper
Product page surface set in advance, anti-fake material has infiltration and merged in page；
(3) during paper machine operation, the release position of above-mentioned anti-fake material mixture exists in wet end, or release position
After Dryer Section of Paper Machine before surface-sizing station；By being preset to injection apparatus, the liquid flow of ejection reaches in release layer
Effect will not both destroy l Water Paper page, will not also produce diffusion；There is heating to improve its rate of drying as injection is latter；By upper
State after step, obtained false proof paper products, position of the anti-fake material in page is that, positioned at the surface of page, distribution patterns are to appoint
It is meaning, orientable.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although with reference to foregoing reality
Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (9)
1. a kind of preparation method of false proof paper products, it is characterised in that comprise the following steps：
(1) anti-fake material is mixed with adhesive, medium, obtains the anti-fake material mixture containing anti-fake material 25-35%wt；
The anti-fake material is powdery or the anti-fake material of liquid；The adhesive is starch, polyvinyl alcohol and its modified product, aqueous poly- ammonia
Ester or sodium carboxymethylcellulose；The medium is the solvent that water or viscosity are no more than 400mps；
(2) the anti-fake material mixture for obtaining above-mentioned steps (1) loads the spray of the electric control with playpipe and injection syringe needle
Anti-fake material mixture is applied in the page set in advance of paper products by injection device, paper machine operation by spraying syringe needle, should
The page of anti-fake material mixture has been discharged to discharge layer；
(3) during paper machine operation, the release position of the anti-fake material mixture is wet end or applying glue portion；
(4) after drying.
2. the preparation method of a kind of false proof paper products according to claim 1, it is characterised in that the false proof paper products are used
In release anti-fake material.
3. a kind of preparation method of false proof paper products according to claim 1, it is characterised in that described anti-fake material is
Anti-fake material containing solid particle, described medium is water or acetone.
4. a kind of preparation method of false proof paper products according to claim 1, it is characterised in that described anti-fake material is
The anti-fake material of solid particle containing maximum particle diameter no more than 100 microns.
5. the preparation method of a kind of false proof paper products according to claim 1, it is characterised in that described release layer is located at
Between two layers of page of the false proof paper products or page one side.
6. the preparation method of a kind of false proof paper products according to claim 1, it is characterised in that the anti-fake material passes through
Injection apparatus, makes anti-fake material positioning be distributed in a certain position of the paper products.
7. a kind of preparation method of false proof paper products according to claim 1, it is characterised in that the false proof paper products institute
The preparation method of use includes the anti-fake material being added into page by paper pulp process of manufacturing paper with pulp in l Water Paper portion, then makes
Into false proof paper products.
8. a kind of preparation method of false proof paper products according to claim 1, it is characterised in that described anti-fake material is
Particle containing maximum particle diameter no more than 100 microns and/or the liquid anti-fake material with color characteristic.
9. a kind of preparation method of false proof paper products according to claim 1, it is characterised in that the release layer be containing
The page of anti-fake material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710420509.5A CN107100033A (en) | 2017-06-07 | 2017-06-07 | A kind of preparation method of false proof paper products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710420509.5A CN107100033A (en) | 2017-06-07 | 2017-06-07 | A kind of preparation method of false proof paper products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100033A true CN107100033A (en) | 2017-08-29 |
Family
ID=59659280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710420509.5A Pending CN107100033A (en) | 2017-06-07 | 2017-06-07 | A kind of preparation method of false proof paper products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100033A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638662A (en) * | 2018-05-15 | 2018-10-12 | 中钞油墨有限公司 | A kind of individualized security element preparation facilities |
| CN109835084A (en) * | 2017-11-27 | 2019-06-04 | 吴宁飞 | Application of the antifalse material in anti-fake payment and currency security, bank card etc. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525860A (en) * | 2009-04-15 | 2009-09-09 | 中国印钞造币总公司 | Anti-counterfeiting paper product applied with anti-counterfeiting materials at certain positions and preparation method thereof |
| CN102373653A (en) * | 2010-08-23 | 2012-03-14 | 昆山钞票纸业有限公司 | Anti-counterfeiting paper and manufacture method thereof |
| CN103757987A (en) * | 2014-02-14 | 2014-04-30 | 山东凯丽特种纸股份有限公司 | Multiple composite anti-counterfeit paper and making method thereof |
-
2017
- 2017-06-07 CN CN201710420509.5A patent/CN107100033A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525860A (en) * | 2009-04-15 | 2009-09-09 | 中国印钞造币总公司 | Anti-counterfeiting paper product applied with anti-counterfeiting materials at certain positions and preparation method thereof |
| CN102373653A (en) * | 2010-08-23 | 2012-03-14 | 昆山钞票纸业有限公司 | Anti-counterfeiting paper and manufacture method thereof |
| CN103757987A (en) * | 2014-02-14 | 2014-04-30 | 山东凯丽特种纸股份有限公司 | Multiple composite anti-counterfeit paper and making method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109835084A (en) * | 2017-11-27 | 2019-06-04 | 吴宁飞 | Application of the antifalse material in anti-fake payment and currency security, bank card etc. |
| CN108638662A (en) * | 2018-05-15 | 2018-10-12 | 中钞油墨有限公司 | A kind of individualized security element preparation facilities |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102019531B1 (en) | Methods for printing tactile security features | |
| KR101858414B1 (en) | Pearlescent pigment containing organic or inorganic fluorescent substance for security applications | |
| KR101590690B1 (en) | Use of raman markers for authenticating security documents | |
| US8376409B2 (en) | Security sheet comprising a fibrous substrate | |
| CN101525860B (en) | Anti-counterfeiting paper product applied with anti-counterfeiting materials at certain positions and preparation method thereof | |
| US20110250410A1 (en) | Method and composition for printing tactile marks and security document formed therefrom | |
| KR20160040237A (en) | Magnetic or magnetisable pigment particles and optical effect layers | |
| AU2008316507A1 (en) | Security element | |
| CN106103126B (en) | The surface treatment method of security documents and relevant security documents | |
| CN107100033A (en) | A kind of preparation method of false proof paper products | |
| ITMI951540A1 (en) | SAFETY LEAFLET IN PARTICULAR OF THE TYPE INCORPORATING AN ELECTRICITY CONDUCTING ELEMENT | |
| KR20110089980A (en) | Infrared absorption paper for counterfeit prevention | |
| CN102108653B (en) | Sheet-like anti-counterfeiting material and anti-counterfeiting paper | |
| JPH11323785A (en) | Granular material emitting fluorescence, paper for preventing counterfeit using the same and printed paper preventing counterfeit | |
| WO2010077837A2 (en) | Planchettes containing inconstant pigment or dye for secure article | |
| Hossan | Optical authentication strategy using sodium alginate nanoparticles encapsulating lanthanide-doped aluminate | |
| CN102797192B (en) | Novel anti-counterfeit paper | |
| US20140027078A1 (en) | Paper that cannot be forged using solvents | |
| CN103437248B (en) | A kind of anti-counterfeiting carbonless copy paper and production method with safety line | |
| CN106149467A (en) | A kind of friction variable color or roll wipe look cheque paper and manufacture method thereof | |
| JP2008111207A (en) | Antifalsification paper | |
| JP2000129596A (en) | Paper for preventing falsification | |
| JP2011149107A (en) | Falsification-preventing paper | |
| JP5286658B2 (en) | Anti-counterfeit thread | |
| WO2014178067A2 (en) | A high security yarn or thread for security paper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |
|
| RJ01 | Rejection of invention patent application after publication |