WO2016106982A1 - 一种防伪元件、制造方法以及含有该防伪元件的安全纸张 - Google Patents

一种防伪元件、制造方法以及含有该防伪元件的安全纸张 Download PDF

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WO2016106982A1
WO2016106982A1 PCT/CN2015/075014 CN2015075014W WO2016106982A1 WO 2016106982 A1 WO2016106982 A1 WO 2016106982A1 CN 2015075014 W CN2015075014 W CN 2015075014W WO 2016106982 A1 WO2016106982 A1 WO 2016106982A1
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Prior art keywords
counterfeiting
security
branch
security element
paper
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PCT/CN2015/075014
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English (en)
French (fr)
Inventor
狄宏伟
王都义
马娜
张业录
Original Assignee
昆山钞票纸业有限公司
中国印钞造币总公司
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Publication of WO2016106982A1 publication Critical patent/WO2016106982A1/zh

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    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/355—Security threads
    • 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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • 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

Definitions

  • the invention relates to a security element and a security paper containing the same, and belongs to the technical field of anti-counterfeiting.
  • security fibers as security features for banknotes and securities is a well-known technique. They are generally composed of short organic synthetic polymers and cotton fibers, and are introduced into paper during papermaking. There are also reports of adding paper, plastic or metal pieces to paper for making anti-counterfeit paper.
  • sheet-like anti-counterfeiting materials such as pearlescent sheets (which have been successfully used in the 2010 Shanghai World Expo ticket paper), are usually in the shape of squares and other regular geometric shapes, and are processed into sheets of anti-counterfeiting materials.
  • the security paper produced has a large adverse effect on the overall aesthetics.
  • anti-counterfeit paper such as banknote paper, bond paper, and bill paper. Its shape is often flat or irregularly twisted. After improvement, it can be in the shape of a regular curve, such as "C” shape, " S “shape or wave shape, but the anti-counterfeit fiber has a single structure and a single anti-counterfeiting feature in the length direction, and has a simple structure, a single anti-counterfeiting feature, and is easily copied by a counterfeiter.
  • Patent CN101315678A relates to a composite security element having a structure comprising at least a liquid crystal material layer, a substrate and an anti-counterfeit coding layer, and the anti-counterfeit coding layer is located on one side of the substrate, and the liquid crystal layer is located on the other side of the substrate or the surface of the anti-counterfeit coding layer.
  • a protective layer and an adhesive layer may also be applied to the surface of the composite component, respectively.
  • Patent WO2003059644 relates to a security element for or embedded in a value document such as a banknote, a credit card or the like, the security element having a multi-layered structure and comprising an interference unit for producing a color conversion effect, a magnetic layer and a interference unit A reflective layer between the magnetic layers, in a further implementation, the diffractive structure is integrated within the security element.
  • the security element of the invention is particularly suitable for use as a window security thread in banknote paper.
  • the anti-counterfeiting component of the above patent has a single structure, is difficult to counterfeit, and is applied to a specific area in the paper.
  • a first object of the present invention is to provide a security element that increases the anti-counterfeiting effect and adds difficulty in copying.
  • a second object of the present invention is to provide a method of preparing the anti-counterfeiting element of the multi-branch anti-counterfeiting structure.
  • a third object of the present invention is to provide a security paper for the security element of the multi-branch security structure.
  • a fourth object of the present invention is to provide a security article made of the security paper described.
  • a first aspect of the present invention provides a security element having a multi-branch security structure, wherein the multi-branch security structure has at least one node, each node has at least three security branches, and at least one security branch A part contains at least two layers of anti-counterfeiting composite structures.
  • the multi-branch anti-forgery structure is a single-node multi-branch structure.
  • the multi-branch anti-forgery structure is a multi-node multi-branch structure.
  • At least one of the at least two layers of the anti-counterfeit composite structure comprises an anti-counterfeiting information material, wherein the anti-counterfeiting information material is selected from the group consisting of:
  • the anti-counterfeiting material containing other anti-counterfeiting information has magnetic, photo-denatured or multi-colored anti-counterfeiting properties.
  • the anti-counterfeiting material of the other orientation information may also have other anti-counterfeiting characteristics acceptable to those skilled in the art.
  • the adjacent layers contain different anti-counterfeiting information materials.
  • At least one of the at least two layers of the anti-counterfeit composite structure is a polymer material.
  • the security element has a thickness of from 0.2 ⁇ m to 100 ⁇ m.
  • each of the branches of the security element has a length of from 0.2 mm to 5 mm.
  • each of the branching elements has a width of from 0.1 ⁇ m to 50 ⁇ m.
  • a second aspect of the present invention provides a method of fabricating a security element having the multi-branch anti-counterfeiting structure, including the following steps:
  • thermoplastic tubular material having an inner wall having an adhesive, the thermoplastic tubular material having at least one layer structure
  • the "thermoplastic tubular material” has a cross-sectional shape corresponding to the multi-branched security structure.
  • the multi-branch anti-counterfeiting structure has at least one node, each node has at least three anti-counterfeiting branches, and a part of at least one anti-counterfeiting branch contains at least two layers of anti-counterfeiting composite structures.
  • the manufacturing steps include:
  • thermoplastic tubular material is prepared, and the inner wall has adhesiveness.
  • the tubular material contains at least one layer structure, and each layer structure may contain dyes, pigments, energy storage luminescent materials, fluorescent materials, ultraviolet luminescent materials, infrared luminescent materials, electrical signal materials, magnetic signal materials and other anti-counterfeiting materials containing anti-counterfeiting information.
  • each layer structure may contain dyes, pigments, energy storage luminescent materials, fluorescent materials, ultraviolet luminescent materials, infrared luminescent materials, electrical signal materials, magnetic signal materials and other anti-counterfeiting materials containing anti-counterfeiting information.
  • a third aspect of the present invention provides a security paper containing the security element of the multi-branch security structure, wherein the multi-branch structure security element is distributed in the security paper or distributed on the security paper Within the pre-set design area.
  • the security element is randomly distributed in the security paper or is located in the security paper.
  • a fourth aspect of the present invention provides a security article manufactured by the security paper of the present invention.
  • Figure 1 Schematic diagram of the single-node five-branch structure security element
  • Figure 2 Schematic diagram of the two-node six-branch structure security element
  • Figure 3 Schematic diagram of a single layer of thermoplastic tubular material
  • Figure 4 Schematic diagram of the strip material after the tubular material is deformed by the die and bonded and shaped
  • Fig. 5 is a schematic view showing the structure of a single-node five-branch double-layer structure security element formed by precision cutting of strip material in the longitudinal direction.
  • the inventors have conducted extensive and intensive research to obtain a security element that increases the anti-counterfeiting effect by improving the preparation process.
  • the present invention has been completed on this basis.
  • the technical means of the invention are:
  • the invention relates to a security element and a security paper containing the same.
  • the security element has at least one node, each node having at least three branches, and a portion of at least one of the branches has at least two layers.
  • a portion of each branch of the security element has at least two layers of a multi-layer composite structure, each layer structure may contain an anti-counterfeiting information additive, preferably at least one of which is a polymeric material.
  • the invention also relates to a security paper containing the security element and a security article made using the security paper.
  • the term “contains” or “includes” means that the various ingredients can be used together in the mixture or composition of the present invention.
  • the terms “consisting essentially of” and “consisting of” are encompassed by the terms “comprising” or “including.”
  • a first aspect of the present invention provides a security element having a multi-branch security structure, wherein the multi-branch security structure has at least one node, each node has at least three security branches, and at least one security branch A part contains at least two layers of anti-counterfeiting composite structures.
  • the existing technical solutions all realize multi-level anti-counterfeiting features on a certain planar substrate, and the anti-counterfeiting features integrated with the anti-counterfeiting features, such as security wires, have anti-counterfeiting components, and have multiple layers extending in the length direction and in the thickness direction.
  • the characteristics of the structure are relatively simple, the difficulty of forgery is small, and the application in paper is limited to a specific area.
  • the present invention enables full-page application in paper, as well as continuous application of a particular area of the paper.
  • the structure of the invention is complicated, and the addition of the paper does not affect the overall aesthetic of the paper, and at the same time, since the invention has a multi-branched structure on the basis of the shape of the anti-counterfeit fiber, Therefore, compared with the conventional anti-counterfeit fiber, the invention can be interwoven with the paper fiber to produce a better bonding force, and it is difficult to fall off from the paper in the subsequent processing (such as printing).
  • the security element of the present invention avoids the disadvantages of known security elements, increases the anti-counterfeiting effect, and adds the difficulty of counterfeiting.
  • the anti-counterfeiting element may be composed of a multi-branch anti-counterfeiting structure, or may include a plurality of multi-branch anti-counterfeiting structures. In this way, the security element of the present invention can be subjected to anti-counterfeiting upgrade according to the demand for anti-counterfeiting.
  • the multi-branch anti-forgery structure is a single-node multi-branch structure.
  • the multi-branch anti-forgery structure is a multi-node multi-branch structure.
  • At least one of the at least two layers of the anti-counterfeit composite structure comprises an anti-counterfeiting information material, wherein the anti-counterfeiting information material is selected from the group consisting of:
  • the anti-counterfeiting material containing other anti-counterfeiting information has magnetic, photo-denatured or multi-colored anti-counterfeiting properties.
  • the anti-counterfeiting material of the other orientation information may also have other anti-counterfeiting characteristics acceptable to those skilled in the art.
  • the structure of the present invention is complicated as compared with the sheet-like anti-counterfeiting material and the anti-counterfeit fiber mentioned in the background art. More advantageously, the structure of the present invention gives the possibility of an anti-counterfeiting upgrade.
  • "at least one layer of structure containing an anti-counterfeiting information material” is defined.
  • the adjacent layers contain different anti-counterfeiting information materials.
  • the security element having a multi-branch structure has at least two layers in the branch.
  • different anti-counterfeiting materials are added to the adjacent layers; or a layer of anti-counterfeiting material is added, and no anti-counterfeiting material is added to the adjacent layer; or Adjacent layers add a combination of different anti-counterfeiting materials.
  • any adjacent layer has a strong bonding force, and peeling or separation does not occur between adjacent layers.
  • At least one of the at least two layers of the anti-counterfeit composite structure is a polymer material.
  • the material of the security element is mainly made of a non-metal material, preferably a polymer material.
  • a security element having a multi-branched structure in which at least one of the layered structures in the branches is a polymer material.
  • the security element has a thickness of from 0.2 ⁇ m to 100 ⁇ m.
  • each of the branches of the security element has a length of from 0.2 mm to 5 mm.
  • each of the branching elements has a width of from 0.1 ⁇ m to 50 ⁇ m.
  • a security element having a multi-branch structure is suitable for introduction into paper in the manufacture of paper, the thickness of the security element being 0.2 ⁇ m - 100 ⁇ m; the length of each branch of the security element being 0.2 mm - 5mm, width 0.1 ⁇ m-50 ⁇ m.
  • a second aspect of the present invention provides a method of fabricating a security element having the multi-branch anti-counterfeiting structure, including the following steps:
  • thermoplastic tubular material having an inner wall having an adhesive, the thermoplastic tubular material having at least one layer structure
  • the "thermoplastic tubular material” has a cross-sectional shape corresponding to the multi-branched security structure.
  • the multi-branch anti-counterfeiting structure has at least one node, each node has at least three anti-counterfeiting branches, and a part of at least one anti-counterfeiting branch contains at least two layers of anti-counterfeiting composite structures.
  • the manufacturing steps include:
  • thermoplastic tubular material is prepared, and the inner wall has adhesiveness.
  • the tubular material contains at least one layer structure, and each layer structure may contain dyes, pigments, energy storage luminescent materials, fluorescent materials, ultraviolet luminescent materials, infrared luminescent materials, electrical signal materials, magnetic signal materials and other anti-counterfeiting materials containing anti-counterfeiting information.
  • each layer structure may contain dyes, pigments, energy storage luminescent materials, fluorescent materials, ultraviolet luminescent materials, infrared luminescent materials, electrical signal materials, magnetic signal materials and other anti-counterfeiting materials containing anti-counterfeiting information.
  • a security element having a multi-branch structure as a more preferred solution, the manufacturing steps include:
  • thermoplastic tubular material is prepared, and the inner wall has adhesiveness.
  • the tubular material having a single layer structure can be composited into a tubular material having a multilayer structure in the thickness direction by a coating method such as coating, adhesive bonding, coextrusion casting, and the like.
  • the tubular material is subjected to extrusion deformation and adhesion setting treatment by a mold to form a strip-shaped material having a multi-branched structure in cross section.
  • the security element contains a layer of adhesive material.
  • an anti-counterfeiting material can be added to the bonding material, and the anti-counterfeiting performance of the anti-counterfeiting fiber is improved while improving the shape stability of the anti-counterfeiting element.
  • a third aspect of the present invention provides a security paper containing the security element of the multi-branch security structure, wherein the multi-branch structure security element is distributed in the security paper or distributed on the security paper Within the pre-set design area.
  • the security element is randomly distributed in the security paper or is located in the security paper.
  • the existing technical solutions all realize multi-level anti-counterfeiting features on a certain planar substrate, and the anti-counterfeiting features integrated with the anti-counterfeiting features, such as security wires, have anti-counterfeiting components, and have multiple layers extending in the length direction and in the thickness direction.
  • the characteristics of the structure are relatively simple, the difficulty of forgery is small, and the application in paper is limited to a specific area.
  • the present invention enables full-page application in paper, as well as continuous application of a particular area of the paper.
  • the anti-counterfeiting component of the invention is combined with the traditional paper anti-counterfeiting technology, and the anti-counterfeit paper containing the anti-counterfeiting component of the multi-branch structure is produced, and the anti-counterfeiting of the security articles such as banknotes and securities processed by the paper is further improved.
  • the conventional paper anti-counterfeiting technology includes paper watermarking technology, security thread paper technology and the like.
  • the security paper containing the multi-branch structure security element may simultaneously contain one of a watermark, a security thread, and other security fibers, and combinations thereof.
  • a fourth aspect of the present invention provides a security article manufactured by the security paper of the present invention.
  • the paper produced by the above method is taken up to become a paper shaft, and the subsequent processing of the paper shaft includes traditional processing steps such as paper cutting, printing, slitting, etc., to produce security articles such as banknotes and securities.
  • the invention provides a security element having a multi-branch structure, the security element having at least one node, each node having at least three branches, and a part of at least one branch containing at least two layers of composite nodes Structure.
  • each layer structure may contain one of a dye, a pigment, an energy storage luminescent material, a fluorescent material, an ultraviolet luminescent material, an infrared luminescent material, an electrical signal material, a magnetic signal material, and other anti-counterfeiting materials containing anti-counterfeiting information, and their combination.
  • at least one of a portion of at least one of the branches is a polymeric material.
  • the security element has a thickness of from 0.2 ⁇ m to 100 ⁇ m.
  • each of the branches of the security element has a length of 0.2 mm to 5 mm.
  • each of the branching elements has a width of from 0.1 ⁇ m to 50 ⁇ m.
  • the invention provides a method for manufacturing a security element having a multi-branch structure, the manufacturing step of which comprises: (1) preparing a thermoplastic tubular material, the inner wall having adhesiveness.
  • the tubular material contains at least one layer structure, and each layer structure may contain dyes, pigments, energy storage luminescent materials, fluorescent materials, ultraviolet luminescent materials, infrared luminescent materials, electrical signal materials, magnetic signal materials and other anti-counterfeiting materials containing anti-counterfeiting information.
  • the present invention also provides a security paper containing the security element of the multi-branched structure.
  • the present invention also provides a security article made of the security paper described.
  • the security element of the invention avoids the disadvantages of known security elements, increases the anti-counterfeiting effect and adds the difficulty of counterfeiting. Further, the present invention provides a security paper containing the security element and a security article manufactured using the security paper. In order to achieve the above object, the security element of the present invention contains at least one node, each node having at least three branches, and a part of at least one branch having a two-layer structure.
  • the anti-counterfeiting component with multi-branch structure breaks the structure of the traditional anti-counterfeiting component, such as the anti-counterfeiting fiber, which is mostly flat, twisted, waved, "C"-shaped, circular and the like, and has a single structure without contact, and the anti-counterfeiting of the invention
  • the component contains at least one node, and each node contains at least three branches.
  • the security element having a multi-branch structure has a structure of at least one of the branches of the security element having at least two layers in order to improve the anti-counterfeiting performance of the security element.
  • Each layer structure may contain one of a dye, a pigment, an energy storage luminescent material, a fluorescent material, an ultraviolet luminescent material, an infrared luminescent material, an electrical signal material, a magnetic signal material, and other anti-counterfeiting materials containing anti-counterfeiting information, and combinations thereof, thereby
  • the security element is made to have characteristics such as magnetic, photo-denatured or multi-colored.
  • the invention relates to a security paper which incorporates a security element having a multi-branched structure during the manufacturing process.
  • the method of introducing the security element into the paper can be carried out by a conventional method, and the security element can be distributed in the paper or distributed in a pre-designed area of the paper.
  • the above-mentioned security elements can be distributed in a security paper or distributed in a pre-designed design area of the security paper.
  • FIG. 1 is a schematic view showing the outer shape of a single-node five-branch structure security element; and FIG. 2 is a schematic view showing the outer shape of a two-node six-branch structure security element.
  • FIG. 3 is a single-layer thermoplastic tubular material prepared
  • FIG. 4 is a tubular material after being subjected to die deformation and bonding and shaping treatment.
  • the strip material, FIG. 5 is a single-node five-branch structure security element formed by precision cutting the strip material in the longitudinal direction.
  • the security element of the present invention contains a node 1, each node 1 having at least three branches 2, and a portion of at least one branch having a two-layer structure. Specifically, as shown in Figure 1, there is a single node and five branches. Figure 2 shows a specific embodiment with two nodes and six branches. As shown in Figure 5, node 1 and branch 2 are shown.
  • This structure breaks the structure of the conventional security element.
  • the security fiber is mostly a flat, twisted, waved, "C" type, circular or the like, and has no joint.
  • the security element of the present invention contains at least one node, each The nodes contain at least three branches.
  • a portion of at least one of the security elements has at least a two-layer structure.
  • the first layer 3 and the second layer 4 are illustrated, and each layer structure may contain a dye, a pigment, an energy storage luminescent material, a fluorescent material, an ultraviolet luminescent material, an infrared luminescent material, an electrical signal material, and a magnetic signal.
  • Materials and other anti-counterfeiting information One of the anti-counterfeiting materials and combinations thereof, such that the security element has characteristics such as magnetic, photo-denatured or multi-colored.
  • the material of the security element is mainly made of a non-metal material, and the polymer material is selected in this embodiment.
  • the security element having a multi-branched structure is suitable for introduction into paper in paper manufacturing, and the thickness of the security element is from 0.2 ⁇ m to 100 ⁇ m (thickness 5 as shown in FIG. 5);
  • Each branch of the element has a length of 0.2 mm to 5 mm (branch length 6 as shown in Fig. 5) and a width of 0.1 ⁇ m to 50 ⁇ m (branch width 7 as shown in Fig. 5).
  • the security element can be obtained by the following manufacturing steps:
  • thermoplastic tubular material is prepared, and the inner wall has adhesiveness.
  • a coating method such as coating, adhesive bonding, coextrusion casting, or the like may be employed, and a security material may be added at the same time, or a tubular material having a single layer structure may be composited to have a plurality of layers in the thickness direction. Structure of the tubular material.
  • the tubular material is subjected to extrusion deformation and adhesion setting treatment by a mold to form a strip-shaped material having a multi-branched structure in cross section.
  • the security element contains a layer of adhesive material.
  • an anti-counterfeiting material can be added to the bonding material, and the anti-counterfeiting performance of the anti-counterfeiting fiber is improved while improving the shape stability of the anti-counterfeiting element.

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Abstract

一种具有多分支防伪结构的防伪元件，该多分支防伪结构至少含有一个结点，每个结点具有至少三个防伪分支，且至少一个防伪分支的一部分含有至少两层的防伪复合结构。该防伪元件的制备方法包括提供热塑性管状材料，对其进行挤压变形和/或粘结定型处理和沿长度方向切割。该防伪元件可满版分布于安全纸张中，或者分布于安全纸张预先设定的区域内。

Description

一种防伪元件、制造方法以及含有该防伪元件的安全纸张 技术领域
本发明涉及一种防伪元件以及含有该防伪元件的安全纸张，属于防伪技术领域。
背景技术
将防伪纤维作为钞票、证券的安全特征，是公知的技术，它们一般是由短的有机合成高分子和棉纤维构成，并在纸张抄造时引入到纸张中。也有将纸质的、塑料的或者金属材质的小片，加入到纸张中制作防伪纸张的报道。
作为公众所知的，片状防伪材料，如珠光片(已成功用于2010年上海世博会门票纸)等，其形状通常是正方形等较为规则的几何形状，在纸张中施加片状防伪材料加工制作出的防伪纸张，其整体美感方面有较大的不利影响。
在钞票纸、证券纸、票据纸等防伪纸张上得到广泛应用的防伪纤维，其形状往往是平直的或者无规则扭曲的，经改进后可呈规则的曲线形状，如“C”形、“S“形或波浪形，但防伪纤维在长度方向上具有单一结构和单一的防伪特征，既结构简单、防伪特征单一，易被伪造者复制。
专利CN101315678A涉及了一种复合防伪元件，其结构至少包含液晶材料层、基材和防伪编码层，且防伪编码层位于基材的一面，液晶层位于基材的另一边或防伪编码层表面，该复合元件表面分别还可施加保护层和胶黏剂层。
专利WO2003059644涉及一种用于或嵌入在有价文件如钞票、信用卡等中的防伪元件，该防伪元件具有多层结构且包括一个产生颜色变换效果的干涉单元、一个磁性层和一个位于干涉单元和磁性层间的反射层，在进一步实施中，衍射结构被集成在防伪元件内。该发明的防伪元件特别适用作钞票纸中的开窗安全线。
但是上述专利的防伪元件的本身结构较为单一，伪造难度小，且在纸张中施加仅限于某一特定区域。
发明内容
本发明的第一目的在于提供增加防伪效果以及增设仿造难度的防伪元件。
本发明的第二目的在于提供一种所述的多分支防伪结构的防伪元件的制备方法。
本发明的第三目的在于提供一种所述的多分支防伪结构的防伪元件的安全纸张。
本发明的第四目的在于一种所述的安全纸张所制造的安全物件。
本发明第一方面在于提供一种具有多分支防伪结构的防伪元件，其中，所述多分支防伪结构至少含有一个结点，每个结点具有至少三个的防伪分支，且至少一个防伪分支的一部分含有至少两层的防伪复合结构。
在一个具体实施方式中，所述多分支防伪结构为单节点多分支结构。
在一个具体实施方式中，所述多分支防伪结构为多节点多分支结构。
在本发明的优选实施方式中，所述至少两层的防伪复合结构中，至少有一层结构含有防伪信息材料，其中所述防伪信息材料选自：
染料、颜料、蓄能发光材料、荧光材料、紫外发光材料、红外发光材料、电信号材料、磁信号材料、含其它防伪信息的防伪材料中的一种或它们的组合。
在一个具体实施方式中，含其它防伪信息的防伪材料具有磁性、光变性或多色的防伪特性。所述其他方位信息的防伪材料还可以具有其他的本领域技术人员可接受的防伪特性。
在本发明的优选实施方式中，所述至少两层的防伪复合结构中，相邻层含有不同的防伪信息材料。
在本发明的优选实施方式中，所述至少两层的防伪复合结构中，其中至少有一层的基材为高分子材料。
在本发明的优选实施方式中，所述的防伪元件的厚度为0.2μm-100μm。
在本发明的优选实施方式中，所述的防伪元件的每个分支长度为0.2mm-5mm。
在本发明的优选实施方式中，所述的防伪元件的每个分支宽度为0.1μm-50μm。
本发明的第二方面提供一种具有所述的多分支防伪结构的防伪元件的制备方法，其中，包括如下步骤：
(1)提供热塑性管状材料，其内壁具有粘合性，所述热塑性管状材料具有至少一层结构；
(2)对所述步骤(1)的管状材料进行挤压变形和/或粘结定型处理，形成横截面对应于所述多分支防伪结构的条状材料；
(3)沿所述条状材料长度方向按0.2μm-100μm步距进行精密切割，得到所述具有多分支防伪结构的防伪元件。
在一个具体实施方式中，所述“热塑性管状材料”具有对应于所述多分支防伪结构的横截面形状。
所述多分支防伪结构至少含有一个结点，每个结点至少具有三个防伪分支，且至少一个防伪分支的一部分含有至少两层防伪复合结构。
在一个具体实施方式中，所述制造步骤包括：
(1)制备热塑性管状材料，内壁具有粘合性。管状材料至少含有一层结构，每层结构可含有染料、颜料、蓄能发光材料、荧光材料、紫外发光材料、红外发光材料、电信号材料、磁信号材料和其它含防伪信息的防伪材料中的一种以及它们的组合；
(2)通过模具对该管状材料进行挤压变形和/或粘结定型处理，形成横截面为所述具有多分支防伪结构的条状材料；
(3)沿所述条状材料长度方向按0.2μm-100μm步距进行精密切割，制造出一种具有多分支防伪结构防伪元件。
本发明的第三方面提供一种含有所述的多分支防伪结构的防伪元件的安全纸张，其中所述多分支结构的防伪元件满版分布于所述安全纸张中，或者分布于所述安全纸张的预先设定的设计区域内。
在一个具体实施方式中，所述防伪元件随机分布于所述安全纸张中，或者定位分布于所述安全纸张中。
本发明的第四方面提供一种本发明所述的安全纸张所制造的安全物件。
附图概述
本发明的具体特征、性能由以下的实施例及其附图进一步给出。
图1：单结点五分支结构防伪元件的外形示意图；
图2：两结点六分支结构防伪元件的外形示意图；
图3：单层热塑性管状材料示意图；
图4：管状材料经过模具挤压变形及粘结定型处理后的条状材料的示意图；
图5：条状材料按长度方向进行精密切割后形成的单结点五分支双层结构防伪元件结构示意图。
本发明的最佳实施方式
本发明人经过广泛而深入的研究，通过改进制备工艺，获得了增加防伪效果的防伪元件。在此基础上完成了本发明。
本发明的技术手段在于：
本发明涉及一种防伪元件及含有该防伪元件的安全纸张。该防伪元件至少含有一个结点，每个结点至少具有三个分支，至少一个分支的一部分至少含有两层结构。该防伪元件的每个分支的一部分具有至少两层的多层复合结构，每层结构可含有防伪信息添加物，最好是至少其中一层是高分子材料。本发明还涉及含有该防伪元件的安全纸张以及采用该安全纸张制造的安全物件。
本发明中，术语“含有”或“包括”表示各种成分可一起应用于本发明的混合物或组合物中。因此，术语“主要由...组成”和“由...组成”包含在术语“含有”或“包括”中。
以下对本发明的各个方面进行详述：
防伪元件
本发明第一方面在于提供一种具有多分支防伪结构的防伪元件，其中，所述多分支防伪结构至少含有一个结点，每个结点具有至少三个的防伪分支，且至少一个防伪分支的一部分含有至少两层的防伪复合结构。
现有的技术方案均是在某一平面基材上实现多层次防伪特征，其防伪特征集成制造出的防伪元件，如安全线这种防伪元件，具有在长度方向上延伸、厚度方向上多层的特点，其本身结构较为单一，伪造难度小，且在纸张中施加仅限于某一特定区域。而本发明可实现在纸张中的满版施加，亦可实在纸张中某一特定区域的连续施加。
与背景技术提到的片状防伪材料和防伪纤维相比，本发明结构复杂，添加在纸张中不影响纸张的整体美感，同时由于该发明在类似防伪纤维形态的基础上带有多分支结构，因此相对于传统的防伪纤维，该发明可与纸张纤维交织，产生较好的结合力，在后序加工(如印刷等)不易从纸张中脱落。另外，本发明的防伪元件避免了已知防伪元件的缺点，增加了防伪效果以及增设了仿造难度。
所述具有多分支防伪结构的防伪元件中，所述防伪元件可以是由一个多分支防伪结构组成，也可以是含有多个多分支防伪结构。这样使得本发明的防伪元件可根据防伪的需求而进行防伪升级。
在一个具体实施方式中，所述多分支防伪结构为单节点多分支结构。
在一个具体实施方式中，所述多分支防伪结构为多节点多分支结构。
在本发明的优选实施方式中，所述至少两层的防伪复合结构中，至少有一层结构含有防伪信息材料，其中所述防伪信息材料选自：
染料、颜料、蓄能发光材料、荧光材料、紫外发光材料、红外发光材料、电信号材料、磁信号材料、含其它防伪信息的防伪材料中的一种或它们的组合。
在一个具体实施方式中，含其它防伪信息的防伪材料具有磁性、光变性或多色的防伪特性。所述其他方位信息的防伪材料还可以具有其他的本领域技术人员可接受的防伪特性。
与背景技术提到的片状防伪材料和防伪纤维相比，本发明结构复杂。而更有利的是，本发明的结构赋予了防伪升级的可能性。例如，在所述优选的实施方式中，限定“至少有一层结构含有防伪信息材料”。在其他优选的实施方式中，可以有“多层结构含有防伪信息材料”，增加了伪造难度。
发明人还列出如下优选方式，可进一步根据需求增加伪造难度：
在本发明的优选实施方式中，所述至少两层的防伪复合结构中，相邻层含有不同的防伪信息材料。
按本发明具有多分支结构的防伪元件，分支中至少具有两层结构，作为一种优选方案，相邻层添加不同防伪材料；或一层添加防伪材料，而相邻层不添加防伪材料；或相邻层添加不同防伪材料的组合。同时，作为基本要求，任意相邻层具有牢固的结合力，相邻两层之间不会发生剥离或分离的现象。
在本发明的优选实施方式中，所述至少两层的防伪复合结构中，其中至少有一层的基材为高分子材料。
防伪元件的材质主要选用非金属材料，优选高分子材料。作为一种优选的方案，具有多分支结构的防伪元件，其分支中的层状结构至少有一层是高分子材料。
为了提高防伪元件的加工效率，提高防伪元件的强度，构成同一分支的各层最好不选用结合性能较差的高分子材料。
在本发明的优选实施方式中，所述的防伪元件的厚度为0.2μm-100μm。
在本发明的优选实施方式中，所述的防伪元件的每个分支长度为0.2mm-5mm。
在本发明的优选实施方式中，所述的防伪元件的每个分支宽度为0.1μm-50μm。
根据本发明具有多分支结构的防伪元件，作为一种优选的方案，为了适合在纸张制造中引入到纸张中，防伪元件的厚度为0.2μm-100μm；防伪元件的每个分支长度为0.2mm-5mm，宽度为0.1μm-50μm。
防伪元件的制备方法
本发明的第二方面提供一种具有所述的多分支防伪结构的防伪元件的制备方法，其中，包括如下步骤：
(1)提供热塑性管状材料，其内壁具有粘合性，所述热塑性管状材料具有至少一层结构；
(2)对所述步骤(1)的管状材料进行挤压变形和/或粘结定型处理，形成横截面对应于所述多分支防伪结构的条状材料；
(3)沿所述条状材料长度方向按0.2μm-100μm步距进行精密切割，得到所述具有多分支防伪结构的防伪元件。
在一个具体实施方式中，所述“热塑性管状材料”具有对应于所述多分支防伪结构的横截面形状。
所述多分支防伪结构至少含有一个结点，每个结点至少具有三个防伪分支，且至少一个防伪分支的一部分含有至少两层防伪复合结构。
在一个具体实施方式中，所述制造步骤包括：
(1)制备热塑性管状材料，内壁具有粘合性。管状材料至少含有一层结构，每层结构可含有染料、颜料、蓄能发光材料、荧光材料、紫外发光材料、红外发光材料、电信号材料、磁信号材料和其它含防伪信息的防伪材料中的一种以及它们的组合；
(2)通过模具对该管状材料进行挤压变形和/或粘结定型处理，形成横截面为所述具有多分支防伪结构的条状材料；
(3)沿所述条状材料长度方向按0.2μm-100μm步距进行精密切割，制造出一种具有多分支防伪结构防伪元件。
根据本发明具有多分支结构的防伪元件，作为一种更优选的方案，其制造步骤包括：
(1)制备热塑性管状材料，内壁具有粘合性。作为一种可实现的方案，可采 用镀膜、胶黏剂粘合、共挤流延等加工方式，同时添加防伪材料，也可将具有单层结构的管状材料复合成在厚度方向上具有多层结构的管状材料。
(2)通过模具对该管状材料进行挤压变形及粘结定型处理，形成横截面为所述具有多分支结构的条状材料。为了防止防伪元件在应用中从层间断裂，任意相邻两层之间具有牢固的结合力，作为可实施的方案，防伪元件含有粘合材料层。作为一种可实现的方案，可在粘合材料中添加防伪材料，在提高防伪元件形态稳定性的同时，提高了防伪纤维的防伪性能。
(3)沿所述条状材料长度方向按0.2μm-100μm步距进行精密切割，制造出一种具有多分支结构防伪元件。
安全纸张
本发明的第三方面提供一种含有所述的多分支防伪结构的防伪元件的安全纸张，其中所述多分支结构的防伪元件满版分布于所述安全纸张中，或者分布于所述安全纸张的预先设定的设计区域内。
在一个具体实施方式中，所述防伪元件随机分布于所述安全纸张中，或者定位分布于所述安全纸张中。
现有的技术方案均是在某一平面基材上实现多层次防伪特征，其防伪特征集成制造出的防伪元件，如安全线这种防伪元件，具有在长度方向上延伸、厚度方向上多层的特点，其本身结构较为单一，伪造难度小，且在纸张中施加仅限于某一特定区域。而本发明可实现在纸张中的满版施加，亦可实在纸张中某一特定区域的连续施加。
本发明涉及的防伪元件，与传统的纸张防伪技术相结合，所生产的含有该多分支结构的防伪元件的防伪纸张，将进一步提高采用该纸张所加工制作的钞票、证券等安全物件的防伪造能力，阻止伪造者进行复制和仿制的企图。所述的传统的纸张防伪技术，包括纸张水印技术、安全线纸张技术等等。含有该多分支结构防伪元件的防伪纸张，可以同时含有水印、安全线、其它防伪纤维中的一种以及上述的组合。
安全物件
本发明的第四方面提供一种本发明所述的安全纸张所制造的安全物件。
采用上述方法制造的纸张经卷取后成为纸轴，纸轴的后续加工包括切纸、印刷、分切等传统加工步骤，生产出钞票、证券等安全物件。
优选实施方式
本发明提供一种具有多分支结构的防伪元件，该防伪元件至少含有一个结点，每个结点至少具有三个分支，至少一个分支的一部分含有至少两层复合结 构。优选地，每层结构可含有染料、颜料、蓄能发光材料、荧光材料、紫外发光材料、红外发光材料、电信号材料、磁信号材料和其它含防伪信息的防伪材料中的一种以及它们的组合。优选地，至少一个分支的一部分其中至少一层是高分子材料。优选地，所述的防伪元件的厚度为0.2μm-100μm。优选地，所述的防伪元件的每个分支长度为0.2mm-5mm。优选地，所述的防伪元件的每个分支宽度为0.1μm-50μm。
本发明提供一种具有多分支结构的防伪元件的制造方法，所述的防伪元件其制造步骤包括：(1)制备热塑性管状材料，内壁具有粘合性。管状材料至少含有一层结构，每层结构可含有染料、颜料、蓄能发光材料、荧光材料、紫外发光材料、红外发光材料、电信号材料、磁信号材料和其它含防伪信息的防伪材料中的一种以及它们的组合；(2)通过模具对该管状材料进行挤压变形及粘结定型处理，形成横截面为所述具有多分支结构的条状材料；(3)沿所述条状材料长度方向按0.2μm-100μm步距进行精密切割，制造出一种具有多分支结构防伪元件。
本发明还提供一种含有所述的多分支结构的防伪元件的安全纸张。
本发明还提供一种含有所述的安全纸张所制造的安全物件。
优选方案的优点详述如下：
本发明的防伪元件避免了已知防伪元件的缺点，增加了防伪效果以及增设了仿造难度。此外，本发明还提供了一种含有该防伪元件的安全纸张以及采用该安全纸张制造的安全物件。为了实现上述目的，本发明的防伪元件至少含有一个结点，每个结点至少含有三个分支，至少一个分支的一部分含有两层结构。
按本发明具有多分支结构的防伪元件，打破了传统的防伪元件的结构,如防伪纤维多为平直、扭曲、波浪、“C”型、圆形等无接点的单一结构，本发明的防伪元件至少含有一个结点，每个结点至少含有三个分支。
按本发明具有多分支结构的防伪元件，作为一种优选方案，为提高防伪元件的防伪性能，防伪元件中至少有一个分支的一部分至少具有两层结构。每层结构可含有染料、颜料、蓄能发光材料、荧光材料、紫外发光材料、红外发光材料、电信号材料、磁信号材料和其它含防伪信息的防伪材料中的一种以及它们的组合，从而使该防伪元件具有如磁性、光变性或多色等特性。
本发明所涉及的一种安全纸张，该安全纸张在制造过程中引入了含有具有多分支结构的防伪元件。将防伪元件引入纸张的方法，可以采用传统的方法，可以使防伪元件随即分布在纸张中，也可以定位分布在纸张中预先设计的区域内。作为可实现的方案，上述防伪元件可以满版分布于安全纸张中，或分布于安全纸张的预先设计的设计区域内。
如无具体说明，本发明的各种原料均可以通过市售得到；或根据本领域的常规方法制备得到。除非另有定义或说明，本文中所使用的所有专业与科学用语与本领域技术熟练人员所熟悉的意义相同。此外任何与所记载内容相似或均等的方法及材料皆可应用于本发明方法中。
本发明的其他方面由于本文的公开内容，对本领域的技术人员而言是显而易见的。
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。下列实施例中未注明具体条件的实验方法，通常按照国家标准测定。若没有相应的国家标准，则按照通用的国际标准、常规条件、或按照制造厂商所建议的条件进行。
除非另有定义或说明，本文中所使用的所有专业与科学用语与本领域技术熟练人员所熟悉的意义相同。此外任何与所记载内容相似或均等的方法及材料皆可应用于本发明方法中。
实施例
以下参照附图，给出本发明的具体实施方式，用来对本发明的设计方案进行进一步的说明。
图1为单结点五分支结构防伪元件的外形示意图；图2为两结点六分支结构防伪元件的外形示意图。
以单层热塑性管状材料通过模具加工及切割单结点五分支结构防伪元件为例，图3为制备的单层热塑性管状材料，图4为管状材料经过模具挤压变形及粘结定型处理后的条状材料，图5为该条状材料按长度方向进行精密切割后形成的单结点五分支结构防伪元件。
本发明的防伪元件含有一个结点1，每个结点1至少含有三个分支2，至少一个分支的一部分含有两层结构。具体如图1所示，含有单个节点和五个分支。图2示出了含有两个节点和六个分支的具体实施方式。如图5所示，示出了节点1和分支2。这种结构打破了传统的防伪元件的结构,如防伪纤维多为平直、扭曲、波浪、“C”型、圆形等无接点的单一结构，本发明的防伪元件至少含有一个结点，每个结点至少含有三个分支。
所述防伪元件中至少有一个分支的一部分至少具有两层结构。如图5所述，示出了第一层3和第二层4，每层结构可含有染料、颜料、蓄能发光材料、荧光材料、紫外发光材料、红外发光材料、电信号材料、磁信号材料和其它含防伪信息 的防伪材料中的一种以及它们的组合，从而使该防伪元件具有如磁性、光变性或多色等特性。
防伪元件的材质主要选用非金属材料，本实施例选用高分子材料。
为了提高防伪元件的加工效率，提高防伪元件的强度，构成同一分支的各层最好不选用结合性能较差的高分子材料。
根据本发明具有多分支结构的防伪元件，作为一种优选的方案，为了适合在纸张制造中引入到纸张中，防伪元件的厚度为0.2μm-100μm(如图5所示的厚度5)；防伪元件的每个分支长度为0.2mm-5mm(如图5所示的分支长度6)，宽度为0.1μm-50μm(如图5所示的分支宽度7)。
所述防伪元件可由如下制造步骤得到：
(1)制备热塑性管状材料，内壁具有粘合性。作为一种可实现的方案，可采用镀膜、胶黏剂粘合、共挤流延等加工方式，同时添加防伪材料，也可将具有单层结构的管状材料复合成在厚度方向上具有多层结构的管状材料。
(2)通过模具对该管状材料进行挤压变形及粘结定型处理，形成横截面为所述具有多分支结构的条状材料。为了防止防伪元件在应用中从层间断裂，任意相邻两层之间具有牢固的结合力，作为可实施的方案，防伪元件含有粘合材料层。作为一种可实现的方案，可在粘合材料中添加防伪材料，在提高防伪元件形态稳定性的同时，提高了防伪纤维的防伪性能。
(3)沿所述条状材料长度方向按0.2μm-100μm步距进行精密切割，制造出一种具有多分支结构防伪元件。
以上所述仅为本发明的较佳实施例而已，并非用以限定本发明的实质技术内容范围，本发明的实质技术内容是广义地定义于申请的权利要求范围中，任何他人完成的技术实体或方法，若是与申请的权利要求范围所定义的完全相同，也或是一种等效的变更，均将被视为涵盖于该权利要求范围之中。
在本发明提及的所有文献都在本申请中引用作为参考，就如同每一篇文献被单独引用作为参考那样。此外应理解，在阅读了本发明的上述内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。

Claims (10)

  1. 一种具有多分支防伪结构的防伪元件，其中，所述多分支防伪结构至少含有一个结点，每个结点具有至少三个的防伪分支，且至少一个防伪分支的一部分含有至少两层的防伪复合结构。
  2. 如权利要求1所述的防伪元件，其中，所述至少两层的防伪复合结构中，至少有一层结构含有防伪信息材料，其中所述防伪信息材料选自：
    染料、颜料、蓄能发光材料、荧光材料、紫外发光材料、红外发光材料、电信号材料、磁信号材料、含其它防伪信息的防伪材料中的一种或它们的组合。
  3. 如权利要求2所述的防伪元件，其中，所述至少两层的防伪复合结构中，相邻层含有不同的防伪信息材料。
  4. 如权利要求1所述的防伪元件，其中，所述至少两层的防伪复合结构中，其中至少有一层的基材为高分子材料。
  5. 如权利要求1所述的防伪元件，其中，所述的多分支防伪结构的厚度为0.2μm-100μm。
  6. 如权利要求1所述的防伪元件，其中，所述的多分支防伪结构的每个分支长度为0.2mm-5mm。
  7. 如权利要求1所述的防伪元件，其中，所述的防伪元件的每个分支宽度为0.1μm-50μm。
  8. 一种具有如权利要求1所述的多分支防伪结构的防伪元件的制备方法，其中，包括如下步骤：
    (1)提供热塑性管状材料，其内壁具有粘合性，且所述热塑性管状材料具有至少一层结构；
    (2)对所述步骤(1)的管状材料进行挤压变形和/或粘结定型处理，形成横截面对应于所述具有多分支防伪结构的条状材料；
    (3)沿所述条状材料长度方向按0.2μm-100μm步距进行精密切割，得到所述具有多分支防伪结构的防伪元件。
  9. 一种含有如权利要求1所述的具有多分支防伪结构的防伪元件的安全纸 张，其中所述具有多分支防伪结构的防伪元件满版分布于所述安全纸张中，或者分布于所述安全纸张的预先设定的设计区域内。
  10. 一种如权利要求9所述的安全纸张所制造的安全物件。
PCT/CN2015/075014 2014-12-31 2015-03-25 一种防伪元件、制造方法以及含有该防伪元件的安全纸张 WO2016106982A1 (zh)

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