CN110901255B - Anti-fake card with asymmetric structure and its making process - Google Patents

Anti-fake card with asymmetric structure and its making process Download PDF

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Publication number
CN110901255B
CN110901255B CN201911326781.2A CN201911326781A CN110901255B CN 110901255 B CN110901255 B CN 110901255B CN 201911326781 A CN201911326781 A CN 201911326781A CN 110901255 B CN110901255 B CN 110901255B
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layer
bearing substrate
composite surface
base
base layer
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CN110901255A (en
Inventor
刘东波
王军华
虞力英
顾席光
戴佳
徐巍
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Traffic Management Research Institute of Ministry of Public Security
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Traffic Management Research Institute of Ministry of Public Security
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • 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
    • B42D25/328—Diffraction gratings; Holograms
    • 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
    • B42D25/378—Special inks
    • 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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
    • 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
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • 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
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/455—Associating two or more layers using heat
    • 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
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/46—Associating two or more layers using pressure

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Toxicology (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

The invention provides an anti-counterfeiting card with an asymmetric structure, which can reduce the cost of a single-sided anti-counterfeiting card on the basis of ensuring realization of a full version holographic anti-counterfeiting image on the surface of the anti-counterfeiting card. It comprises the following steps: a base layer and a laser etching layer; a first composite surface layer and a second composite surface layer are respectively arranged on one side of the two laser etching layers away from the base layer; the first composite surface layer comprises a bearing substrate layer and a structural support layer; a holographic micro-nano structure is formed on the structural support layer in an imprinting mode, a medium coating layer formed by transparent oxide films with refractive indexes more than 1.8 is covered on the structural surface where the holographic micro-nano structure is located, and finally a protective layer is arranged; the protective layer and the structural support layer are made of the same material, and the difference value of the thermal expansion coefficients of the material and the material of the base layer, the laser etching layer and the bearing substrate layer is [ +30% ]; the second composite skin layer comprises: a bearing substrate layer and a basal layer. The invention also discloses a manufacturing method of the anti-counterfeiting card with the asymmetric structure.

Description

Anti-fake card with asymmetric structure and its making process
Technical Field
The invention relates to the technical field of anti-fake card manufacturing, in particular to an anti-fake card with an asymmetric structure and a manufacturing method thereof.
Background
In the current society, various card-type certificates represented by second-generation identity cards are widely applied to the fields of identity authentication, quick payment, access control and the like. The functions of the security cards such as anti-counterfeiting images, endorsement information and the like are added to the security cards required by the functions of the security cards, so that the purpose of safe use is achieved. In the manufacturing process of the certificate card, corresponding functional requirements can be realized by arranging different structural layers and embedding holographic micro-nano structures, laser etching endorsements and the like on the corresponding structural layers. Different structural layers can be made of films with different materials, and then are manufactured and molded through the procedures of gluing, hot pressing, cold pressing and the like. The common structural layer comprises a base layer serving as a support, a functional layer for realizing an anti-counterfeiting function and a endorsement function, and an outermost protective layer.
In the prior art, different anti-counterfeiting images are realized on the surface of an anti-counterfeiting card through micro-nano technologies such as a grating structure, a 3D color lens technology and the like, so that in order to increase the image brightness of the anti-counterfeiting image, users can more easily respectively verify the authenticity of the card through naked eyes, and most technicians use zinc sulfide as a medium coating layer of a holographic anti-counterfeiting structure; however, zinc sulfide cannot be fused with adjacent structural layers in molecular level, and in order to ensure interlayer bonding force of the card, only the medium coating layer and the adjacent structural layers can be bonded in an adhesive mode, so that most holographic anti-counterfeiting images in the prior art cannot cover the whole area of the front surface and the back surface of the card.
In order to prevent the size of the anti-counterfeiting image from being limited, the technical personnel improve a medium coating layer and can realize the full-page anti-counterfeiting image on the surface of the card. However, when manufacturing the card, because of the hot pressing and cold pressing procedures, films made of different materials can generate certain internal stress inside the card after lamination cooling due to the difference of the thermal expansion coefficients of the base materials; particularly, the improved medium coating layer with the whole area can cause larger internal stress change on the functional layer, so that in order to prevent the card from warping, the structural layers arranged on two sides of the base layer are symmetrically arranged.
However, in practical application, due to the technical requirements of cost, anti-counterfeiting and the like, some cards only need to realize the function of single-sided anti-counterfeiting image, and the existing technology is used, so that the single-sided anti-counterfeiting function can be realized only by symmetrically arranging structural layers on two sides of a base layer, and the cost of the cards is very high.
Disclosure of Invention
In order to solve the problem that the prior art cannot realize the full-page holographic anti-counterfeiting image and reduce the cost of the single-side card at the same time, the invention provides the anti-counterfeiting card with an asymmetric structure, which can reduce the cost of the single-side anti-counterfeiting card on the basis of ensuring the realization of the full-page holographic anti-counterfeiting image on the surface of the anti-counterfeiting card. The invention also discloses a manufacturing method of the anti-counterfeiting card with the asymmetric structure.
The technical scheme of the invention is as follows: an asymmetrically structured security card, comprising: as the basic unit of main bearing structure, the basic unit both sides symmetry respectively set up one with the same laser etching layer of basic unit material, its characterized in that: the base layer is made of polycarbonate or PETG; a first composite surface layer and a second composite surface layer are respectively arranged on one side of the two laser etching layers away from the base layer;
a bearing substrate layer which is made of the same material as the laser etching layer is respectively arranged on one side, close to the laser etching layer, of the first composite surface layer and the second composite surface layer;
in the first composite surface layer, a structural support layer is arranged on one side of the bearing substrate layer, which is far away from the base layer; a holographic micro-nano structure formed by imprinting on the structural support layer, a medium coating layer formed by transparent oxide films with refractive indexes more than 1.8 is covered on the structural surface where the holographic micro-nano structure is positioned, and finally a protective layer is arranged;
the second composite skin layer comprises: the substrate bearing layer and one side of the substrate bearing layer far away from the base layer are provided with base layers;
the protective layer and the structural support layer are made of the same material, and a high molecular compound coating containing carbonate chain links is adopted, wherein the difference value between the thermal expansion coefficient of the material and the thermal expansion coefficient of the material of the base layer, the laser etching layer and the bearing substrate layer is [ +30% and-30% ].
It is further characterized by:
the base layer comprises: the structural support layer is arranged on one side of the bearing substrate layer far away from the base layer;
the base layer comprises: the protective layer is formed after the high polymer compound coating containing carbonate chain links is cured;
the base layer comprises: the structural support layer is arranged on one side of the bearing substrate layer far away from the base layer, and the protective layer is arranged on the outermost layer;
the high molecular compound coating containing carbonate chain links is a UV light curing/heat curing coating;
the thickness of the bearing substrate layer is 50-200 mu m, and the thickness of the structural support layer is 0.5-20 mu m; the thickness of the protective layer is 0.5 mu m-20 mu m; the thickness of the dielectric coating layer is 30-nm-400 nm.
A manufacturing method of an anti-counterfeiting card with an asymmetric structure comprises the following steps:
s1: firstly, preparing a base layer;
s2: manufacturing a first composite surface layer;
s3: manufacturing a second composite surface layer;
s4: the first composite surface layer, the first laser etching layer, the base layer, the second laser etching layer and the second composite surface layer are sequentially stacked from top to bottom, then heated and laminated, and then cold-pressed to form the novel anti-fake card with the anti-fake mark on one side;
the method is characterized in that:
in step S2, the step of manufacturing the first composite surface layer includes:
s2-1: providing the bearing substrate layer;
s2-2: a structural supporting layer is arranged on the surface of one side of the bearing substrate layer far away from the base layer;
s2-3: the holographic micro-nano structure is manufactured on the surface of one side of the structural supporting layer far away from the base layer through imprinting;
s2-4: the medium coating layer is formed by globally covering compact oxide on the structural surface where the holographic micro-nano structure is located;
s2-5: finally, a high molecular compound coating containing carbonate chain links is coated and solidified to form the protective layer.
It is further characterized by:
in step S3, the step of manufacturing the second composite surface layer includes:
s3-1: providing the bearing substrate layer;
s3-2: a structural supporting layer is arranged on the surface of one side of the bearing substrate layer far away from the base layer;
in step S3, the step of manufacturing the second composite surface layer includes:
s3-1: providing the bearing substrate layer;
s3-2: a structural supporting layer is arranged on the surface of one side of the bearing substrate layer far away from the base layer;
s3-3: coating a high molecular compound coating containing carbonate chain links on the structural support layer, and curing to form the protective layer;
in step S3, the step of manufacturing the second composite surface layer includes:
s3-1: providing the bearing substrate layer;
s3-2: and coating a high molecular compound coating containing carbonate chain links on the surface of one side of the bearing substrate layer far away from the base layer, and curing to form the protective layer.
The invention provides an anti-counterfeiting card with an asymmetric structure and a manufacturing method thereof, wherein a medium coating layer formed by an oxide film with a transparent refractive index more than 1.8 is arranged on a holographic micro-nano structure, and a full-page anti-counterfeiting image on the surface of the card is realized through a one-step forming process; the medium coating layer is combined with the structural support layers and the protective layers at the two sides of the medium coating layer through molecular reaction in the hot pressing process, so that the generated binding force is very large, the whole anti-counterfeiting image can be supported, and the problem of interlayer separation of the card caused by the medium coating layer is avoided; simultaneously, the medium coating layer, the bearing substrate made of polycarbonate or PETG and the high molecular compound coating containing carbonate chain links are solidified to form a protective layer and a structural support layer, and the thermal expansion coefficients of the three layers are very similar to those of the three layers: the difference value range is [ +30%, -30% ], and the internal stress generated in the hot pressing and cold pressing processes in the manufacturing link is very similar, so that the whole card cannot warp; after the first composite surface layer and the second composite surface layer which are formed by the structural layers, even if the specific structures of the first composite surface layer and the second composite surface layer are different, the card can not warp due to the difference of internal stress after the processing procedures of hot pressing and cold pressing; the aim of reducing the cost of the anti-fake card is achieved by simplifying the structure of the second composite surface layer.
Drawings
FIG. 1 is a schematic diagram of an asymmetric card of the present invention;
FIG. 2 is a schematic structural view of a first composite skin layer;
FIG. 3 is a schematic view of a first embodiment of a structure of a second composite skin layer;
FIG. 4 is a schematic view of a second embodiment of a structure of a second composite skin layer;
fig. 5 is a schematic diagram of a third structural embodiment of the second composite skin layer.
Detailed Description
An asymmetrically structured security card, comprising: the base layer 1 is used as a main supporting structure, the base layer 1 comprises a printing layer and a core layer, wherein the printing layer plays a role in printing a card pattern, the core layer comprises a chip 9, the printing layer and the core layer are opaque white, and the printing layer and the core layer in the base layer are made of polycarbonate or PETG; the two sides of the base layer 1 are symmetrically provided with a laser etching layer which is the same as the base layer in material quality: the first laser etching layer 4-1 and the second laser etching layer 4-2 are used for bearing personal information on the anti-fake card; a first composite surface layer 2 and a second composite surface layer 3 are respectively arranged on one side of the two laser etching layers 4-1 and 4-2 away from the base layer; in the first composite surface layer 2 and the second composite surface layer 3, a bearing substrate layer 5 made of polycarbonate or PETG is arranged on one side close to the laser etching layer and made of the same material as the laser etching layer; the bearing substrate layer 5 is used for protecting the laser etching layer, and is used for buffering damage to the laser etching layer due to bending force generated by bending in the use process.
As shown in fig. 2, in the first composite surface layer 2, the structural support layer 6 is formed by curing a high molecular compound coating containing carbonate chain links, such as a UV light curing/heat curing coating, based on the carrier substrate layer 5; the holographic micro-nano structure 7 formed by imprinting on the structural support layer 6 is formed by covering a dielectric coating layer 8 formed by transparent oxide film with refractive index more than 1.8 on the structural surface where the holographic micro-nano structure 7 is located, and the dielectric coating layer 8 is coated with a high molecular compound coating containing carbonate chain links, such as: the protective layer 10 is formed after the UV/thermal curing coating is cured.
As shown in fig. 3, the second composite skin layer 3 includes: a carrier substrate layer 5 and a base layer; the base layer comprises: the structural support layer 6 is formed by curing a high molecular compound coating containing carbonate chain links, such as a UV light curing/heat curing coating, based on the bearing substrate layer, and the protective layer 10 is formed by curing a UV coating provided at the outermost layer;
as shown in fig. 4, the second composite skin layer 3 includes: a carrier substrate layer 5 and a base layer; the base layer comprises: the structural support layer 6 is formed after the bearing substrate layer is cured by UV light curing/heat curing coating;
as shown in fig. 5, the second composite skin layer 3 includes: a carrier substrate layer 5 and a base layer; the base layer comprises: a protective layer 10 formed after curing by UV light curing/heat curing paint provided at the outermost layer;
because the components in the materials of the protective layer 10 and the structural support layer 6 are slightly different, the light transmittance is slightly different, and manufacturers can select different structures of the second composite surface layer 3 according to different requirements of processing specific cost and different specific requirements of the appearance of the anti-counterfeiting card; however, regardless of the structure of the second composite skin layer 3, the thickness of each structural layer is limited as follows:
the thickness of the bearing substrate layer is 50-200 mu m, and the thickness of the structural support layer is 0.5-20 nm; the thickness of the protective layer is 0.5 mu m-20 mu m; the thickness of the dielectric coating layer is 30-nm-400 nm;
through the control of the thickness of the structural layers, the film of each structural layer can ensure that the internal stress generated by the first composite surface layer 2 and the second composite surface layer 3 with different structures is the same after the processing procedure on the basis of ensuring the realization of the functions of the film, thereby achieving the purpose of preventing warping.
The protective layer 10 and the structural support layer 6 in the first composite surface layer 2 and the second composite surface layer 3 are made of the same material, and a high molecular compound coating containing carbonate chain links is adopted, wherein the thermal expansion coefficient of the material is different from that of the material of the base layer 1, the laser etching layers 4-1 and 4-2 and the bearing substrate layer 5 by +30% and-30%; the thermal expansion coefficient is very close to that of the structure layers, and the internal stress generated by each structure layer is very close to that of the structure layers in the hot pressing and cold pressing processes in the manufacturing links; meanwhile, the protective layer 10 and the structural support layer 6 are all film layers formed by thermally curing and/or photo-curing UV curing paint, after the film layers are combined with the bearing substrate layer 5 formed by polycarbonate or PETG, the hardness can reach 4H-5H, the effects of scratch prevention and scratch prevention can be achieved, and the quality and the yield of finished cards are improved.
A manufacturing method of an anti-counterfeiting card with an asymmetric structure comprises the following steps:
s1: first, a base layer 1 is prepared;
s2: manufacturing a first composite surface layer 2:
the step of making the first composite skin layer 2 comprises:
s2-1: providing a bearing substrate layer 5;
s2-2: a structural support layer 6 is arranged on the surface of one side of the bearing substrate layer 5 away from the base layer 1;
s2-3: a holographic micro-nano structure 7 is made on the surface of the side, away from the base layer 1, of the structural support layer 6 by imprinting;
s2-4: on the structural surface where the holographic micro-nano structure 7 is positioned, a medium coating layer 8 is formed by globally filling oxide;
s2-5: finally, a high molecular compound coating containing carbonate chain links is coated, such as a UV light curing/heat curing coating is cured to form a protective layer 10;
s3: manufacturing a second composite surface layer 3;
s4: the first composite surface layer 2, the first laser etching layer 4-1, the base layer 1, the second laser etching layer 4-2 and the second composite surface layer 3 are sequentially stacked from top to bottom, then are heated and laminated, and then are cold-pressed again to form the novel anti-fake card with the anti-fake mark on one side.
In the case of the second composite skin layer 23, because the equipment is readjusted on the production line to produce the structural layers with different thicknesses, the producer will choose the appropriate second composite skin layer structure according to different cost and process requirements:
in step S3, the step of producing the second composite skin layer 3 shown in fig. 4 includes:
s3-1: providing a bearing substrate layer 5;
s3-2: a structural support layer 6 is arranged on the surface of one side of the bearing substrate layer 5 away from the base layer 1;
in step S3, the step of producing the second composite skin layer 3 shown in fig. 3 includes:
s3-1: providing a bearing substrate layer 5;
s3-2: a structural support layer 6 is arranged on the surface of one side of the bearing substrate layer 5 away from the base layer;
s3-3: on top of the structural support layer 6, a UV/thermal curing coating is applied to cure to form a protective layer 10;
in step S3, the step of producing the second composite skin layer 3 shown in fig. 3 includes:
s3-1: providing a bearing substrate layer 5;
s3-2: on the surface of the side of the carrier substrate layer 5 remote from the base layer 1, a UV light/heat curable coating material is applied to cure to form a protective layer 10.
The anti-counterfeiting card realized by adopting the asymmetric card structure in the technical scheme does not need to change the thicknesses of the base layer and the laser etching layer of the core, but reduces the overall cost of the card by adjusting the structure of the composite surface layer, and meanwhile, the stress of the card structure is uniform and no warping is generated by the performance of the material; the maximum distance (including the thickness of the card) from the horizontal rigid platform to any part of the convex surface of the card of the asymmetric structure after the finished product is tested to be not more than 0.5mm.

Claims (10)

1. An asymmetrically structured security card, comprising: as the basic unit of main bearing structure, the basic unit both sides symmetry respectively set up one with the same laser etching layer of basic unit material, its characterized in that: the base layer is made of polycarbonate or PETG; a first composite surface layer and a second composite surface layer are respectively arranged on one side of the two laser etching layers away from the base layer;
a bearing substrate layer which is made of the same material as the laser etching layer is respectively arranged on one side, close to the laser etching layer, of the first composite surface layer and the second composite surface layer;
in the first composite surface layer, a structural support layer is arranged on one side of the bearing substrate layer, which is far away from the base layer; a holographic micro-nano structure formed by imprinting on the structural support layer, a medium coating layer formed by transparent oxide films with refractive indexes more than 1.8 is covered on the structural surface where the holographic micro-nano structure is positioned, and finally a protective layer is arranged;
the second composite skin layer comprises: the substrate bearing layer and one side of the substrate bearing layer far away from the base layer are provided with base layers;
the protective layer and the structural support layer are made of the same material, and a high molecular compound coating containing carbonate chain links is adopted, wherein the difference value between the thermal expansion coefficient of the material and the thermal expansion coefficient of the material of the base layer, the laser etching layer and the bearing substrate layer is [ +30% and-30% ].
2. The asymmetrically structured security card of claim 1, wherein: the base layer comprises: the structural support layer is arranged on one side of the bearing substrate layer far away from the base layer.
3. The asymmetrically structured security card of claim 1, wherein: the base layer comprises: the protective layer is formed by curing a high molecular compound coating containing carbonate chain segments.
4. The asymmetrically structured security card of claim 1, wherein: the base layer comprises: the structure supporting layer is arranged on one side of the bearing substrate layer far away from the base layer, and the protective layer is arranged on the outermost layer.
5. The asymmetric structured anti-counterfeit card of claim 1-4, wherein: the high molecular compound coating containing carbonate chain links is a UV light curing/heat curing coating.
6. The asymmetrically structured security card of claim 1, wherein: the thickness of the bearing substrate layer is 50-200 mu m, and the thickness of the structural support layer is 0.5-20 mu m; the thickness of the protective layer is 0.5 mu m-20 mu m; the thickness of the dielectric coating layer is 30-nm-400 nm.
7. The method for manufacturing the anti-counterfeiting card with the asymmetric structure according to claim 1, which comprises the following steps:
s1: firstly, preparing a base layer;
s2: manufacturing a first composite surface layer;
s3: manufacturing a second composite surface layer;
s4: the first composite surface layer, the first laser etching layer, the base layer, the second laser etching layer and the second composite surface layer are sequentially stacked from top to bottom, then heated and laminated, and then cold-pressed to form the novel anti-fake card with the anti-fake mark on one side;
the method is characterized in that:
in step S2, the step of manufacturing the first composite surface layer includes:
s2-1: providing the bearing substrate layer;
s2-2: a structural supporting layer is arranged on the surface of one side of the bearing substrate layer far away from the base layer;
s2-3: the holographic micro-nano structure is manufactured on the surface of one side of the structural supporting layer far away from the base layer through imprinting;
s2-4: the medium coating layer is formed by globally covering compact oxide on the structural surface where the holographic micro-nano structure is located;
s2-5: finally, a high molecular compound coating containing carbonate chain links is coated and solidified to form the protective layer.
8. The asymmetrically structured security card of claim 7, wherein: in step S3, the step of manufacturing the second composite surface layer includes:
s3-1: providing the bearing substrate layer;
s3-2: and a structural supporting layer is arranged on the surface of one side of the bearing substrate layer far away from the base layer.
9. The asymmetrically structured security card of claim 7, wherein: in step S3, the step of manufacturing the second composite surface layer includes:
s3-1: providing the bearing substrate layer;
s3-2: a structural supporting layer is arranged on the surface of one side of the bearing substrate layer far away from the base layer;
s3-3: and coating a high molecular compound coating containing carbonate chain links on the structural support layer, and curing to form the protective layer.
10. The asymmetrically structured security card of claim 7, wherein: in step S3, the step of manufacturing the second composite surface layer includes:
s3-1: providing the bearing substrate layer;
s3-2: and coating a high molecular compound coating containing carbonate chain links on the surface of one side of the bearing substrate layer far away from the base layer, and curing to form the protective layer.
CN201911326781.2A 2019-12-20 2019-12-20 Anti-fake card with asymmetric structure and its making process Active CN110901255B (en)

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CN111391539A (en) * 2020-04-10 2020-07-10 公安部第一研究所 Card containing multicolor fluorescent pattern and manufacturing method thereof
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