CN101294361B - Guard wire - Google Patents

Guard wire Download PDF

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Publication number
CN101294361B
CN101294361B CN200710097658.9A CN200710097658A CN101294361B CN 101294361 B CN101294361 B CN 101294361B CN 200710097658 A CN200710097658 A CN 200710097658A CN 101294361 B CN101294361 B CN 101294361B
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CN
China
Prior art keywords
layer
information level
safety line
counterfeiting information
substrate layer
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Application number
CN200710097658.9A
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Chinese (zh)
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CN101294361A (en
Inventor
粟婉
刘晖
常为民
常和峰
叶中东
林丽丽
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.)
Zhongchao Special Security Technology Co Ltd
China Banknote Printing and Minting Group Co Ltd
Original Assignee
China Banknote Printing and Minting Corp
Zhongchao Special Security Technology Co Ltd
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Application filed by China Banknote Printing and Minting Corp, Zhongchao Special Security Technology Co Ltd filed Critical China Banknote Printing and Minting Corp
Priority to CN200710097658.9A priority Critical patent/CN101294361B/en
Publication of CN101294361A publication Critical patent/CN101294361A/en
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Abstract

The invention relates to a guard wire comprising a substrate layer, and an optical anti-counterfeiting information layer and a magnetic anti-counterfeiting information layer are sequentially formed on one side of the substrate layer. The optical anti-counterfeiting information layer and the magnetic anti-counterfeiting information layer of the guard wire of the invention are positioned between the substrate layer and paper fiber, and are protected by the substrate layer, thereby being not directly contacted with the external environment, and improving the marketability of the guard wire.

Description

Safety line
Invention field
The present invention relates to a kind of safety line, relate in particular to a kind of safety line that fenestration embeds that is suitable for.
Background of invention
In order to prevent some antifalsification papers, for example bank note, identity card etc. are illegally copied, and people design in these antifalsification papers and embedded a kind of safety line.Embedding safety line has dual mode, and a kind of is that fenestration embeds, and promptly a lateral plate of safety line is embedded among the paper disconnectedly, is exposed to segment paper surface.Also having a kind of embedded mode is that whole safety line is embedded in the paper fully.Safety line is used widely in various countries' paper money in circulation at present.
Chinese patent application 200410062644.X discloses a kind of safety line that forms optical anti-counterfeiting Information Level and magnetic anti-counterfeit Information Level in the both sides of substrate layer respectively.This safety line combines optical anti-counterfeiting and magnetic anti-counterfeit, has improved the anti-counterfeiting technology level of safety line.But the optical anti-counterfeiting Information Level of this safety line can directly contact with external environment, is easily rubbed and is subjected to the corrosion of chemical substances such as soda acid, exist the optical anti-counterfeiting Information Level easily impaired, come off and line paper in conjunction with the problem of fastness difference.
Therefore, in the production of antifalsification paper, need the safety line that a kind of anti-counterfeiting information can keep lastingly at present badly in the paper process of circulation.
Summary of the invention
The objective of the invention is to solve the problem of the anti-circulation difference that has the safety line existence now.
For this reason, the invention provides a kind of safety line, it comprises substrate layer, is formed with optical anti-counterfeiting Information Level and magnetic anti-counterfeit Information Level successively in a side of this substrate layer.
In safety line of the present invention, be formed with adhesive linkage on the surface of above-mentioned magnetic anti-counterfeit Information Level and/or be formed with adhesive linkage at the opposite side of above-mentioned substrate layer.
In safety line of the present invention, the optical anti-counterfeiting Information Level can comprise holographic imaging layer and reflecting layer.
Safety line of the present invention is when embedding paper, and substrate layer places the outside, and then optical anti-counterfeiting Information Level and magnetic anti-counterfeit Information Level are subjected to the protection of substrate layer between substrate layer and paper fiber, directly do not contact with external environment, have improved the anti-circulation of safety line.
Followingly the present invention is described in detail further with reference to accompanying drawing.
Brief Description Of Drawings
Fig. 1 is the structural representation of safety line of the present invention.
The specific embodiment
Referring to Fig. 1, safety line of the present invention comprises substrate layer 1, optical anti-counterfeiting Information Level 2 and magnetic anti-counterfeit Information Level 3.
The supporting layer of substrate layer 1 each layer as other generally adopts transparent plastic sheeting, and thickness is 12~30 μ m.Substrate layer 1 selected material should be fit to hot soft pressure and hard press, smooth, thickness evenly and have an ABRASION RESISTANCE preferably.The preferred substrate layer surpasses 90% to the transmitance of optical anti-counterfeiting Information Level 2.In addition, substrate layer 1 should be able to guarantee that the relief type grating of optical anti-counterfeiting Information Level 2 can duplicate on it in enormous quantities, and hologram pattern is clear, complete.In the preferred embodiment of the invention, PET (polyethylene terephthalate) film is used as substrate layer 1.
Optical anti-counterfeiting Information Level 2 is one of anti-counterfeiting information layer of safety line of the present invention, is positioned at a side of substrate layer 1.Optical anti-counterfeiting Information Level 2 of the present invention can comprise holographic imaging layer 21 and reflecting layer 22.Holographic imaging layer 21 be made as technology well known in the art, can carry out according to common process.
For the holographic imaging layer 21 that makes impression is convenient to watch under white light, reprocessing forms reflecting layer 22 on the good holographic imaging layer 21 of impression.Utilize the 22 pairs of reflection of light effects in reflecting layer, can see through the pattern that substrate layer 1 is clearly seen motley holographic imaging layer 21, form the reflective holographic sign.Reflecting layer 22 is generally the metal level of vacuum evaporation on holographic imaging layer 21, is preferably aluminium.The thickness in reflecting layer 22 is generally 30~40nm.
In order further to improve the anti-counterfeiting technology level of safety line of the present invention, can after forming aluminium reflecting layer 22, be coated with dealuminzation protection glue thereon, on the dealuminzation machine, make partially reflecting layer 22 dealuminzations then, thereby form the hollow out holographic film.In the preferred embodiments of the invention, described dealuminzation protection glue is made solute with epoxy resin, prepares as solvent with the mixture of butanone and cyclohexanone.
Further, can outside reflecting layer 22 after the dealuminzation hollow out, print coloured fluorescent ink or photochromatic printing ink thereon.Like this, both can see hologram pattern through substrate layer 1, the light change color that also can observe openwork part when flip angle is false proof, thereby further improves false proof level.
Magnetic anti-counterfeit Information Level 3 is another anti-counterfeiting information layer of safety line of the present invention.Magnetic anti-counterfeit Information Level 3 is the magnetosphere of printing, can realize antiforge function by the information of this magnetosphere record.This magnetosphere can wait encode false-proof information by the thickness of magnetic material, the type of magnetic material and the size of magnetic field intensity.Further encode false-proof information is waited in shape that in addition can be by the magnetic material that prints in the magnetosphere and size and position.At application number is in the Chinese patent application of 03137378.X, discloses the method that the combination of adopting above-mentioned each variable comes encode false-proof information in detail.In a preferred embodiment of the invention, adopt the coded system of describing in this patent application to form magnetic anti-counterfeit Information Level 3 of the present invention.
The anti-counterfeiting information of magnetic anti-counterfeit Information Level 3 can be realized antiforge function by corresponding earth magnetism checkout equipment identification.One of advantage of magnetic anti-counterfeit Information Level 3 is that the information of its record can keep in the paper process of circulation for a long time, and signal does not fail.
Adhesive linkage 4 and 5 is used for combining of safety line of the present invention both sides and its embedded paper. Adhesive linkage 4 and 5 can be formed by identical or different material, preferably adopts identical materials to form. Adhesive linkage 4 and 5 can comprise supporting layer and adhesive layer, or only is made of adhesive layer.The supporting layer of safety line of the present invention helps combining of adhesive layer and magnetic anti-counterfeit Information Level 3 or the covering layer on it 6, makes total more stable, prevents to form in the centre weak link.This supporting layer preferably is dissolved in the ethyl acetate with mylar and prepares.Safety line dispensing is an important step in the manufacture process of band safety line paper, and safety line is embedded in the paper, and adhesive layer is crucial in conjunction with tie, can realize combining of safety line and paper fiber by the binding agent effect.Safety line of the present invention can adopt hot melt adhesive or water-base cement to form adhesive layer.Described thermosol can adopt polyester glue, or the mixture of polyester glue and polyurethane adhesive, or the mixture of polyester glue and polyamide glue.Described water-base cement comprises polyvinylpyrrolidone, polyvinylpyrrolidone//vinyl acetate copolymers or the like.In safety line of the present invention, adhesive linkage 4 is generally 3-6 μ m, and adhesive linkage 5 is generally 2-4 μ m.
Because safety line of the present invention preferably adopts fenestration to embed, adhesive linkage 5 partly is exposed to paper surface, compare with complete Embedded safety line, it has reduced the area that combines with the paper fiber, cause line paper to descend in conjunction with fastness, therefore, adhesive linkage 4 of the present invention and 5 preferred employings with the paper fiber have the binding agent of high cohesive force to form.It guarantees paper under the situation of rubbing repeatedly and folding, and safety line still can keep firm combining with paper.At application number is in the Chinese patent application of 03137378.X, discloses a kind of thermosol composition that safety line combines with paper that is used for.This thermosol composition comprises the mixture of solvent borne polyurethane and water-base cement, combines the effect of hot melt adhesive and water-base cement, has improved the combine fastness of safety line with paper greatly.In the preferred embodiment of the invention, adopt that disclosed thermosol composition forms adhesive layer of the present invention as binding agent in this patent application.
In safety line of the present invention, also can adopt covering layer 6 to hide magnetic anti-counterfeit Information Level 3, magnetic anti-counterfeit Information Level 3 can not be seen by naked eyes.Simultaneously, covering layer 6 also is used to protect magnetic anti-counterfeit Information Level 3, magnetic anti-counterfeit Information Level 3 is not rubbed or is subjected to chemical attack, guarantees the anti-circulation and the durability of magnetic anti-counterfeit Information Level 3.In addition, covering layer 6 can be used as the supporting layer of adhesive linkage 4, should affinity preferably be arranged with adhesive linkage 4.In the present invention, preferably adopt fluorescent ink or photochromatic printing ink to form covering layer 6.
Between the optical anti-counterfeiting Information Level 2 of safety line of the present invention and magnetic anti-counterfeit Information Level 3, also can be formed with protective layer 7.The effect of safety line protective layer 7 of the present invention is crumpling resistance, alkali resistances of improving optical anti-counterfeiting Information Level 21, and prevents from coming off of reflecting layer 22 from especially to prevent coming off of aluminium reflecting layer.Protective layer 7 adopts polymeric material such as epoxy resin to form thick about 1~3 μ m usually.For guaranteeing the coating densification, when forming protective layer 7, select the mixture of high volatile volatile solvent and low voc solvent to come the dissolve polymer material.If all adopt the high volatile volatile solvent, then cause the coating of protective layer 7 loose, do not reach the protection effect of expection.In a preferred embodiment of the invention, adopt the mixture of butanone and cyclohexanone as solvent.Usually, the thickness of the protective layer 5 of formation is 1~3 μ m.
Abovely have been described in detail with reference to accompanying drawing each layer to safety line of the present invention.It will be understood by those skilled in the art that it is for being easy to purpose of description that safety line of the present invention is divided into above each layer, be not to show that these layers are physically distinct each layers, or each layer is to process separately.In fact, some layer can be processed as one deck together, combines with other layer to constitute safety line of the present invention again.Perhaps, some layer can be made of multilayer itself.In addition, Fig. 1 only is the schematic diagram of safety line of the present invention, does not represent the relative thickness of an interlayer.
By above detailed description as can be known; safety line of the present invention is not changing under the situation of anti-forge paper manufacturing center line paper in conjunction with fastness; not only effectively optical anti-counterfeiting Information Level and magnetic anti-counterfeit Information Level are combined; can also in circulation, protect the integrality of holographic imaging layer effectively, improve the anti-counterfeiting technology level and the product quality of safety line.
It more than is the explanation that safety line of the present invention is applied in the embodiment in the bank note.Those skilled in the art will appreciate that safety line of the present invention not only is useful in this field of bank note, also can be applicable to such as other important certificates such as proof of identification, all kinds of tickets using in the paper with paper or vital document.Do not depart from the various remodeling of technique scheme design and change and all belong to protection scope of the present invention.

Claims (3)

1. safety line; comprise substrate layer (1); side at described substrate layer (1) is formed with optical anti-counterfeiting Information Level (2) and magnetic anti-counterfeit Information Level (3) successively; it is characterized in that; side relative with described optical anti-counterfeiting Information Level (2) at described magnetic anti-counterfeit Information Level (3) is formed with covering layer (6) and adhesive linkage (4) successively; described optical anti-counterfeiting Information Level (2) comprises holographic imaging layer (21) and reflecting layer (22); described reflecting layer (22) is the aluminium reflecting layer; described aluminium reflecting layer is hollow out aluminium reflecting layer; coloured fluorescent ink of printing or photochromatic printing ink on it; described covering layer (6) is formed by fluorescent ink or infra-red drying printing ink; opposite side at described substrate layer (1) is formed with adhesive linkage (5); also be formed with protective layer (7) between described optical anti-counterfeiting Information Level (2) and described magnetic anti-counterfeit Information Level (3), described protective layer (7) is formed by the epoxy resin that is formulated in butanone and the cyclohexanone.
2. safety line as claimed in claim 1 is characterized in that, described substrate layer (1) is formed by the PET plastics.
3. safety line as claimed in claim 1 is characterized in that, described reflecting layer (22) thickness is 30~40nm.
CN200710097658.9A 2007-04-27 2007-04-27 Guard wire Active CN101294361B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200710097658.9A CN101294361B (en) 2007-04-27 2007-04-27 Guard wire

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Application Number Priority Date Filing Date Title
CN200710097658.9A CN101294361B (en) 2007-04-27 2007-04-27 Guard wire

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CN101294361A CN101294361A (en) 2008-10-29
CN101294361B true CN101294361B (en) 2011-11-02

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102446451A (en) * 2010-10-13 2012-05-09 中国人民银行印制科学技术研究所 Anti-counterfeiting component and anti-counterfeiting product
CN102465473B (en) * 2010-11-09 2014-12-24 中国人民银行印制科学技术研究所 Composite safety line
CN106585165B (en) * 2016-12-06 2019-05-07 中钞特种防伪科技有限公司 Optical anti-counterfeit element, optical anti-counterfeiting product and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5631039A (en) * 1994-08-04 1997-05-20 Portals Limited Security thread, a film and a method of manufacture of a security thread
CN1264340A (en) * 1997-07-24 2000-08-23 德国捷德有限公司 Safety document
CN1567368A (en) * 2003-06-19 2005-01-19 中国印钞造币总公司 Magnetic encoding safety line
CN1715560A (en) * 2004-06-30 2006-01-04 中国印钞造币总公司 Safety line for increasing paper safety
CN1766229A (en) * 2004-10-25 2006-05-03 中国印钞造币总公司 Composite false-proof safety thread and its production method, false-proof paper applying the safety thread

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5631039A (en) * 1994-08-04 1997-05-20 Portals Limited Security thread, a film and a method of manufacture of a security thread
CN1264340A (en) * 1997-07-24 2000-08-23 德国捷德有限公司 Safety document
CN1567368A (en) * 2003-06-19 2005-01-19 中国印钞造币总公司 Magnetic encoding safety line
CN1715560A (en) * 2004-06-30 2006-01-04 中国印钞造币总公司 Safety line for increasing paper safety
CN1766229A (en) * 2004-10-25 2006-05-03 中国印钞造币总公司 Composite false-proof safety thread and its production method, false-proof paper applying the safety thread

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SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: CHINA BANKNOTE SPECIAL ANTI-COUNTERFEITING TECHNOL

Free format text: FORMER OWNER: CHINESE MONEY-PRINTING AND MINTING GENERAL CO

Effective date: 20110317

Owner name: CHINESE MONEY-PRINTING AND MINTING GENERAL CO

C41 Transfer of patent application or patent right or utility model
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Free format text: CORRECT: ADDRESS; FROM: 100044 NO. A-143, XIZHIMEN OUTER STREET, XICHENG DISTRICT, BEIJING TO: 100070 NO. 6, XINGHUO ROAD, SCIENCE CITY, FENGTAI DISTRICT, BEIJING

TA01 Transfer of patent application right

Effective date of registration: 20110317

Address after: 100070 No. 6 Spark Road, Science City, Beijing, Fengtai District

Applicant after: ZHONGCHAO SPECIAL SECURITY TECHNOLOGY Co.,Ltd.

Co-applicant after: CHINA BANKNOTE PRINTING AND MINTING Corp.

Address before: 100044 Beijing city Xicheng District Xizhimen Street No. 143

Applicant before: CHINA BANKNOTE PRINTING AND MINTING Corp.

C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 100070 No. 6 Spark Road, Science City, Beijing, Fengtai District

Patentee after: ZHONGCHAO SPECIAL SECURITY TECHNOLOGY Co.,Ltd.

Patentee after: China Banknote Printing and Minting Group Co.,Ltd.

Address before: 100070 No. 6 Spark Road, Science City, Beijing, Fengtai District

Patentee before: ZHONGCHAO SPECIAL SECURITY TECHNOLOGY Co.,Ltd.

Patentee before: CHINA BANKNOTE PRINTING AND MINTING Corp.