Classifications

• • 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
  • B32B29/00—Layered products comprising a layer of paper or cardboard
  • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
• • 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
• • 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
  • B42D25/369—Magnetised or magnetisable materials
• • 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
  • B42D25/373—Metallic materials
• • 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
  • B42D25/382—Special inks absorbing or reflecting infrared light
• • 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
  • B42D25/387—Special inks absorbing or reflecting ultraviolet light
• • 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
  • D21H21/42—Ribbons or strips
• • 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
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/40—Properties of the layers or laminate having particular optical properties
  • B32B2307/402—Coloured
  • B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
• • 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
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/40—Properties of the layers or laminate having particular optical properties
  • B32B2307/422—Luminescent, fluorescent, phosphorescent
• • 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
  • B32B2554/00—Paper of special types, e.g. banknotes

Definitions

• the present invention relates to a security fiber and a method of manufacturing the same, and more particularly to an anti-counterfeit fiber having a multilayer structure and a method of manufacturing the same. Background technique
• Security objects such as banknotes, securities or the like, need to be provided with specific security features to prevent counterfeiting and verify their authenticity.
• anti-counterfeiting 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.
• Anti-counterfeit fibers with a single structure in the longitudinal direction and anti-counterfeiting fibers with a single anti-counterfeiting feature are widely used in anti-counterfeit paper such as banknote paper, security paper, and bill paper, but paper containing such anti-counterfeit fibers has been easily used.
• Counterfeiters use high-resolution scanners, printers, and printers for high-quality reproduction.
• anti-counterfeit fibers with a multi-layer/segment structure in the length direction have been developed, which add additives to the layer/segment structure.
• This kind of anti-counterfeiting fiber realizes multiple recognition of visual and machine-readable. This effect can not be copied by conventional copying technology and printing technology, effectively eliminating the hidden danger of security objects being forged.
• Patent CN 2499432 describes an anti-counterfeiting fiber which is composed of at least two segments in the longitudinal direction and two adjacent segments having different color characteristics.
• Patent CN1372040A introduces a kind of anti-counterfeiting fiber, which firstly prints a plurality of color inks on the surface of the film by printing, and then cuts the film into fibers, and the surface of the single fiber after slitting contains a plurality of color inks, thereby This fiber has the characteristics of a single multi-colored layer.
• a disadvantage of the security fiber is that the anti-counterfeiting feature is provided on the surface of the anti-counterfeit fiber by printing, and the printed layer is easily detached from the surface of the fiber, so that the anti-counterfeiting property of the anti-counterfeit fiber is affected.
• CN201671016U describes an anti-counterfeiting fiber having at least two color segments, the color of which is the fluorescent color produced by the laser-excited fluorescent material in the fiber.
• the anti-counterfeit fiber has the disadvantage that a plurality of color inks can be printed on the surface of the film by printing, and then the film is cut into fibers, and the printed layer is also easily peeled off from the fiber surface, thereby affecting the anti-counterfeiting property.
• the segmented features are derived from the ink printed on the film substrate, and the film substrate does not have segmentation characteristics, the fiber Only part of the structure has segmentation features in the length direction, and segmentation features have differences when the observation directions are different.
• the film substrate has color or opacity characteristics, the difference in directionality is more pronounced, resulting in inconsistencies in the characteristics of the fiber during inspection and observation.
• the degree of fineness of the above-mentioned fibers is determined by the fineness of the printed lines, so that the fiber color segments are difficult to achieve a very fine degree in segmentation. Summary of the invention
• the present invention provides an anti-counterfeiting fiber, a method of manufacturing the same, and a safety paper and a safety article using the same, which are strong in anti-counterfeiting and are not easily counterfeited.
• an anti-counterfeit fiber having a multi-layer structure in a longitudinal direction, the multi-layer structure being fixedly coupled between any two adjacent layers, and at least One of the layers has a different chemical composition from its adjacent layer, and at least one of the layers contains an additive having anti-counterfeiting information.
• the anti-counterfeiting fiber improves the anti-counterfeiting property, and the anti-counterfeiting feature of the anti-counterfeit fiber cannot be reproduced by a forgery method such as printing. Any adjacent layer of the anti-counterfeit fiber has a strong bonding force, and no peeling or separation occurs between adjacent layers.
• Adjacent layers have the same or different materials, one of which may be without the addition of additives, or the addition of at least one different additive to the adjacent layers.
• adjacent layers may be without the addition of additives, or the addition of at least one different additive to the adjacent layers.
• no additives may be added to adjacent layers, or one of the layers may be free of additives, or adjacent layers may be added with the same additive, or adjacent layers may be added with at least one different additive.
• the additive having the anti-counterfeiting information is 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, and a magnetic signal material, and a combination thereof.
• the security fiber has properties such as magnetic, luminescent, reflective, photochromic or polychromatic.
• it can also be other additives containing anti-counterfeiting information.
• the fluorescent material contained in any one layer is a colorless fluorescent material
• any layer of the anti-counterfeit fiber contains a colorless fluorescent material, and adjacent layers are added with different properties.
• the color fluorescent material, or at least one layer of the adjacent layer contains colorless fluorescent fibers.
• the anti-counterfeit fiber having a multi-layer structure exhibits colorless or light gray color
• the anti-counterfeit fiber is irradiated with excitation light
• the colorless fluorescent material in the anti-counterfeit fiber is excited, and the anti-counterfeit fiber exhibits a plurality of fluorescent characteristics of different colors.
• the material of any one of the multi-layer structures is a metal material and a non-metal material, and the material of any one layer is a metal material, and the anti-counterfeit fiber having a multi-layer structure may also be used.
• the material of all layers is all metal materials, or all non-metallic materials.
• the materials of the anti-counterfeit fibers are all made of a metal material, and the adjacent layers are different metal materials, and the metal materials are one of gold, silver, copper and other metals and alloys.
• the material of any layer of anti-counterfeit fiber It can be a single metal or alloy material.
• the material of the anti-counterfeiting fiber is mainly made of a non-metallic material, preferably a polymer material, and different materials have different properties.
• a non-metallic material preferably a polymer material
• different materials have different properties.
• the polymer types of the layers constituting the same anti-counterfeit fiber are less.
• the anti-counterfeiting fiber contains at least one layer of a polymer material, and a colorless fluorescent material is added to the layer of the polymer material.
• Anti-counterfeiting fibers are at least one layer of a polymer material, and a colorless fluorescent material is added to the polymer material layer.
• the anti-counterfeit fiber having a multi-layer structure is made of a polymer material, and any layer contains a colorless fluorescent material.
• the length of the anti-counterfeiting fiber is 0. 5-10 mm, and the preferred length is 2-5 mm, which is more suitable for introduction into paper in the manufacture of paper, which is convenient for the observer to observe and detect)
• the length is suitable for introduction into paper in the manufacture of paper.
• At least one of the layers of the multilayer structure has a thickness of less than 2 um.
• Step 1 preparing a sheet having a multilayer structure in a thickness direction
• Step 2 The sheet is processed into a security fiber having a multi-layer structure by cutting, and the length direction of the anti-counterfeit fiber having a multi-layer structure is the thickness direction of the sheet having a multi-layer structure, and the processing method is by cutting In a manner, a sheet having a multilayer structure is processed into a film having a multilayer structure, and then a film having a multilayer structure is processed into a security fiber having a multilayer structure by cutting.
• the cutting can be performed perpendicular to the outer surface of the sheet and film, or at an angle to the outer surface of the sheet and film.
• the sheet having a multilayer structure in the thickness direction is produced in the following steps:
• a sheet material having a single layer structure is composited into a sheet having a multilayer structure in the thickness direction.
• the single-layer sheet material is made of a stock solution having a certain fluidity, and at least one additive having anti-counterfeiting information is added to the stock solution.
• the non-metallic material layer is formed by a method of blow molding, casting, calendering, coating, or the like from a stock solution having a certain fluidity.
• the layer material is added with at least one additive with anti-counterfeiting information, and the additive is added in the original solution. Add, that is, add before the non-metallic material layer is formed.
• the additive having the anti-counterfeiting information is distributed inside and on the surface of the layer material, and the additive containing the anti-counterfeiting information in the layer exists in the layered structure,
• the additive does not have the problem of falling off, so that the anti-counterfeit fiber having the multi-layer structure of the present invention has stable anti-counterfeiting characteristics, and also makes the anti-counterfeit fiber have the consistency of the anti-counterfeiting characteristics when observed and observed in a plurality of directions.
• a sheet material having a single layer structure is composited into a sheet having a multilayer mechanism in a thickness direction by one of a processing method of coating, adhesive bonding, and coextrusion casting.
• the metal material can be formed into a metal material layer on the surface of the flakes of other materials by methods such as evaporation coating, sputter coating, and ion plating.
• the metal material layer and other sheets are formed into a sheet having a multilayer structure in the thickness direction, and the polymer material can be formed into a multilayer structure in the thickness direction by a multilayer coextrusion casting method.
• the sheet can be of a single material or of a variety of materials.
• the security fibers In order to prevent the security fibers from breaking between the layers in the application, the security fibers have a strong bonding force between any two adjacent layers.
• the security fibers contain a layer of adhesive material.
• an anti-counterfeiting material may be added to the bonding material to form a layer of non-metallic material provided with a security feature, and the bonding layer formed by the bonding material may also be in the length direction of the security fiber.
• the small thickness makes it impossible to realize the anti-counterfeiting property of the layer by using copying technology and printing technology, thereby improving the anti-counterfeiting performance of the anti-counterfeit fiber.
• a security paper the security paper contained in the security paper has a multi-layer structure in the longitudinal direction, the multi-layer structure is fixedly coupled between any two adjacent layers, and at least one of the layers is different from the adjacent layer thereof
• the chemical component, and at least one of the layers internally contains an additive with anti-counterfeiting information.
• a security article comprising a security paper comprising a security fiber having a multi-layer structure in a longitudinal direction, the multi-layer structure being fixedly coupled between any two adjacent layers, and at least one of the layers is adjacent thereto
• the layers have different chemical compositions, and at least one of the layers contains an additive with anti-counterfeiting information.
• the invention has the beneficial effects that: the anti-counterfeiting fiber of the invention is combined with the traditional paper anti-counterfeiting technology, and the anti-counterfeit paper containing the multi-layer structure anti-counterfeit fiber is produced by using a forging method such as printing, and the anti-counterfeiting feature of the anti-counterfeit fiber cannot be reproduced. , will further improve the anti-counterfeiting ability of security articles such as banknotes and securities processed by the paper, and prevent the counterfeiters from copying and copying.
• the traditional paper anti-counterfeiting technology including paper watermarking technology and security line paper technology.
• the security paper containing the multi-layer structure anti-counterfeit fiber may simultaneously contain one of a watermark, a security thread, and other anti-counterfeit fibers, and a combination of the above, and the paper manufactured by the above method is taken up to become a paper shaft, a paper shaft Subsequent processing includes traditional processing steps such as paper cutting, printing, and slitting to produce safe objects such as banknotes and securities. BRIEF abstract
• Figure 1 is a schematic view of a security fiber having a multilayer structure in the longitudinal direction
• FIG. 2 is a schematic view of an anti-counterfeit fiber of a metal material having different properties of adjacent layers
• FIG. 3 is a schematic view showing the structure of the first anti-counterfeit fiber of the polymer material
• Figure 4 is a schematic view showing the structure of the anti-counterfeit fiber of the second polymer material
• Figure 5 is a schematic view showing the structure of the anti-counterfeit fiber of the third polymer material
• Figure 6 is a schematic view showing the structure of the anti-counterfeit fiber of the fourth polymer material
• Figure 7 is a schematic view showing the structure of the anti-counterfeit fiber of the fifth polymer material
• Figure 8 is a schematic view showing the structure of a security paper containing a security fiber having a multilayer structure
• Figure 9 is a schematic view showing the structure of a security article manufactured using a security paper containing a multi-layered security fabric.
• Figure 10 is a sheet having a multilayer structure in the thickness direction
• Figure 11 is a film having a multilayer structure in the width direction.
• Embodiment 1 is a diagrammatic representation of Embodiment 1:
• An anti-counterfeit fiber (shown in FIG. 2 ), wherein the anti-counterfeit fiber is a fixedly connected aluminum thin 3 , a chrome zirconium copper foil 4 and a titanium nitride thin 5 in the longitudinal direction, and the anti-counterfeit fiber has a length of 3 mm. , wherein the titanium nitride has a thin thickness of 2 um.
• a method for manufacturing anti-counterfeiting fibers the specific steps are as follows:
• Step 1 Producing a sheet having a multi-layer structure in the thickness direction: first processing aluminum thin and chrome-zirconium copper foil separately, and then fixing the aluminum thin and chrome-zirconium copper foil by ultrasonic welding, and then using ion plating Method for plating titanium nitride thin on the outer surface of the chromium zirconium copper foil;
• Step 2 The cutting material is cut into anti-counterfeiting fibers having three metal layers in the longitudinal direction, the length of the anti-counterfeit fiber is 3 mm, and the thickness of the titanium nitride layer is 2 um.
• Embodiment 2 is a diagrammatic representation of Embodiment 1:
• a security fiber (shown in FIG. 3), which in turn is a fixedly connected red PA layer 7 containing a colorless fluorescent red material, a blue PA layer 8 of a colorless fluorescent blue material, and a yellow PA of a colorless fluorescent yellow material.
• Layer 9 the anti-counterfeit fiber has a length of 4 mm, wherein the yellow PA layer has a thickness of 2 um, and the colorless fluorescent material in the above three layers is excited The colors under light excitation are red, blue, and yellow.
• a method for manufacturing anti-counterfeiting fibers the specific steps are as follows:
• Step 1 Making a sheet having a multilayer structure in the thickness direction: First, adding the colorless fluorescent red material, the colorless fluorescent blue material, and the colorless fluorescent yellow material to three molten PA liquids, respectively, to be various colorless
• the fluorescent material is distributed in the corresponding PA, and the above three PA liquids are formed into a sheet having a three-layer structure in the thickness direction by a multi-layer co-extrusion casting method, and the sheet has a thickness of 4 mm and contains a colorless fluorescent yellow.
• the thickness of the sheet of material is 2 um;
• Step 2 The sheet is cut by cutting to form a three-layered anti-counterfeit fiber in the longitudinal direction, and the colorless fluorescent material is distributed on the inside and the surface of any layer of material.
• Embodiment 3 is a diagrammatic representation of Embodiment 3
• a security fiber (shown in FIG. 4), which in turn is a fixedly connected red PA layer 7 containing a colorless fluorescent red material, a blue PE layer 11 of a colorless fluorescent blue material, and a yellow PA of a colorless fluorescent yellow material.
• a method for manufacturing anti-counterfeiting fibers the specific steps are as follows:
• Step 1 Prepare a sheet having a multi-layer structure in the thickness direction: First, add the colorless fluorescent red material to two molten PA liquids, and add the colorless fluorescent blue material to a molten PE solution, colorless.
• the fluorescent yellow material is added to a molten PA liquid, and after the various colorless fluorescent materials are distributed in the corresponding PA and PE, the above four liquids and the molten EV0H liquid are formed by multi-layer co-extrusion casting.
• a sheet having a five-layer structure in the thickness direction the thickness of the sheet is 6 mm, and the thickness of the PA sheet containing the colorless fluorescent yellow material is 2 um;
• Step 2 After cutting, the sheet is cut into anti-counterfeiting fibers having a five-layer structure in the longitudinal direction.
• Embodiment 4 After cutting, the sheet is cut into anti-counterfeiting fibers having a five-layer structure in the longitudinal direction.
• a security fiber (shown in FIG. 5), which in turn is a fixedly connected red PA layer 7 containing a colorless fluorescent red material, a red EV0 layer 13 of an infrared luminescent material, a PE layer 14 of a magnetic material, and an ultraviolet luminescent material. 5
• the length of the anti-counterfeit fiber is 4.5. 5
• a method for manufacturing anti-counterfeiting fibers the specific steps are as follows:
• Step 1 Prepare a sheet having a multilayer structure in the thickness direction: First, add the colorless fluorescent red material to a molten PA liquid, add the infrared luminescent material to a molten EV0H solution, and add a magnetic material.
• the ultraviolet luminescent material is added to a molten PA liquid, and after being uniformly distributed, the above four liquids are formed into a sheet having a four-layer structure in the thickness direction by means of multi-layer co-extrusion casting. 5 ⁇ ; The thickness of the sheet is 4. 5mm;
• Step 2 The sheet is cut by a cutting method into an anti-counterfeit fiber having a four-layer structure in the longitudinal direction.
• Embodiment 5 is
• a security fiber (shown in FIG. 6), which in turn is a fixedly connected red PA layer 7 containing a colorless fluorescent red material, a blue PE layer 16 of a colorless fluorescent blue material, and a yellow PA of a colorless fluorescent yellow material.
• a method for manufacturing anti-counterfeiting fibers the specific steps are as follows:
• Step 1 Prepare a sheet having a multilayer structure in the thickness direction: First, add the colorless fluorescent red material to a molten PA liquid, and add the colorless fluorescent blue material to a molten PE solution, colorless fluorescence. The yellow material is added to a molten PA liquid, and after being uniformly distributed, the above three liquids are formed into a sheet having a three-layer structure in the thickness direction by a multi-layer co-extrusion casting method, and the colorless fluorescent red material is used. Adding a molten PVB solution, after being uniformly distributed, a sheet made of PVB is formed by calendering, and then the two sheets are bonded by an epoxy adhesive to form a five-layer structure in the thickness direction. Sheet, the thickness of the sheet is 5mm ;
• Step 2 The sheet is cut by a cutting method into an anti-counterfeit fiber having a four-layer structure in the longitudinal direction.
• Example 6 The sheet is cut by a cutting method into an anti-counterfeit fiber having a four-layer structure in the longitudinal direction.
• a security fiber (shown in FIG. 7), which in turn is a fixedly connected red PA layer 7 containing a colorless fluorescent red material, a blue PE layer 16 of a colorless fluorescent blue material, and a yellow PA of a colorless fluorescent yellow material.
• the layer 9, the inner surface and the surface comprise a UV-curable adhesive layer 19 of a colorless fluorescent red material, a red PVB layer 20 containing an infrared luminescent material, and an aluminum thin 3, the anti-counterfeiting fiber having a length of 7 mm, an ultraviolet curing adhesive
• the thickness of the layer is lum, and the thickness of the aluminum is 2 um.
• a method for manufacturing anti-counterfeiting fibers the specific steps are as follows:
• Step 1 Prepare a sheet having a multilayer structure in the thickness direction: First, add the colorless fluorescent red material to a molten PA liquid, and add the colorless fluorescent blue material to a molten PE solution, colorless fluorescence.
• the yellow material is added to a molten PA liquid, and after being uniformly distributed, the above three liquids are formed into a sheet having a three-layer structure in the thickness direction by multi-layer co-extrusion casting, and the infrared luminescent material is added to one.
• a sheet made of PVB is formed by calendering, and then the two kinds of sheets are bonded by ultraviolet curing adhesive to form a sheet having a five-layer structure in the thickness direction.
• the surface of the sheet made of PVB is thinly plated with aluminum by vapor deposition, and finally a sheet having a six-layer structure is formed.
• the thickness of the sheet is 7 mm, and the thickness of the ultraviolet-curable adhesive layer is lum, thin aluminum.
• the thickness is 2um;
• Step 2 The sheet is cut by a cutting method into an anti-counterfeit fiber having a six-layer structure in the longitudinal direction.
• Example 7 A security paper 1 (shown in Figure 8) containing security fibers 2 in the length direction.
• the safety paper of the embodiment comprises the following dry weight parts of raw materials: 4 parts of wood fiber and 1 part of anti-counterfeit fiber; the papermaking fiber used is beaten wood fiber;
• the security fiber 2 is added to the slurry containing wood fibers in the longitudinal direction, dispersed by stirring, and mixed into a slurry containing the above-mentioned security fiber 2;
• the manufacturing process includes traditional processing steps such as papermaking, pressing, drying, calendering, coiling, and paper cutting.
• the security paper 1 and the security fiber 2 which have been formed by the above steps are distributed in the security paper 1.
• a safety object 6 (shown in FIG. 9), the security paper used for the security article comprises a security fiber 2, a fixed watermark 21 and a security thread 22 in the longitudinal direction.
• the security paper of the embodiment comprises the following dry weight parts. : 5 parts of cotton fiber, 1 part of anti-counterfeiting fiber in the longitudinal direction, and 1 part of hemp fiber.
• a method of manufacturing a safe paper The papermaking fiber used is a beaten cotton fiber and hemp fiber, and then a conventional rotary net making technique is used to make a security paper containing the security fiber 2, the fixed watermark 21 and the security thread 22.
• a security article here, a banknote formed by printing and slitting, wherein the surface of the security article 23 contains the security fiber 2 in the longitudinal direction, and the front and back surfaces of the security article are printed with characters and patterns.

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• 2012
  • 2012-12-04 CN CN201210512468.XA patent/CN103850144B/zh active Active
• 2013
  • 2013-12-04 DE DE112013005814.6T patent/DE112013005814T5/de active Pending
  • 2013-12-04 WO PCT/CN2013/088538 patent/WO2014086294A1/zh active Application Filing

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