CN114913763A - Color-changing anti-counterfeit label - Google Patents

Color-changing anti-counterfeit label Download PDF

Info

Publication number
CN114913763A
CN114913763A CN202210627569.5A CN202210627569A CN114913763A CN 114913763 A CN114913763 A CN 114913763A CN 202210627569 A CN202210627569 A CN 202210627569A CN 114913763 A CN114913763 A CN 114913763A
Authority
CN
China
Prior art keywords
color
layer
changing
base layer
organic solvent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210627569.5A
Other languages
Chinese (zh)
Other versions
CN114913763B (en
Inventor
尚要俊
周世兵
高俊杰
邬晓冬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Nine Stars Printing and Packaging Group Co Ltd
Original Assignee
Shenzhen Nine Stars Printing and Packaging Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Nine Stars Printing and Packaging Group Co Ltd filed Critical Shenzhen Nine Stars Printing and Packaging Group Co Ltd
Priority to CN202210627569.5A priority Critical patent/CN114913763B/en
Publication of CN114913763A publication Critical patent/CN114913763A/en
Application granted granted Critical
Publication of CN114913763B publication Critical patent/CN114913763B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • G09F3/0294—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time where the change is not permanent, e.g. labels only readable under a special light, temperature indicating labels and the like
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/50—Sympathetic, colour changing or similar inks

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Printing Methods (AREA)
  • Laminated Bodies (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)

Abstract

The invention relates to a color-changing anti-counterfeiting label, which comprises: a base layer made of a dense material; the base layer is made of compact materials and is arranged above the base layer in a laminated mode, the edge of the base layer is connected with the edge of the base layer in a sealing mode, and an accommodating space is formed between the base layer and the base layer; the discoloration layer is arranged in the accommodating space and is formed by printing anti-counterfeiting discoloration ink, and the anti-counterfeiting discoloration ink comprises: 20-40 parts of host material, 5-10 parts of auxiliary material, 1-10 parts of guest molecule and 0.5-3 parts of polar organic solvent; the main body material is polyvinyl butyral, the auxiliary material contains carboxyl, and the guest molecule is iodine simple substance. Before the color-changing anti-counterfeiting label is used, the color-changing layer presents a first color; after the activation, the color changing layer gradually changes into a second color, and then gradually changes back to the first color again, and the color changing layer has a time-delay reciprocating color changing function after being activated, and has a higher anti-counterfeiting effect.

Description

Color-changing anti-counterfeit label
Technical Field
The invention relates to the technical field of anti-counterfeiting, in particular to an anti-counterfeiting label.
Background
The anti-fake label that discolours of prior art, it is realized through printing anti-fake ink that discolours mostly, and the anti-fake ink that discolours of prior art, its color change effect is stable mostly, and the effect of discolouing promptly can reappear, and this can not avoid bringing the problem: the anti-counterfeiting color-changing label cannot be prevented from being reused.
Disclosure of Invention
Based on this, it is necessary to provide a disposable color-changing anti-counterfeit label.
A color changing security label comprising:
a base layer made of a dense material;
the base layer is made of compact materials and is arranged above the base layer in a laminated mode, the edge of the base layer is connected with the edge of the base layer in a sealing mode, and an accommodating space is formed between the base layer and the base layer;
the discoloration layer, set up in the accommodation space, discoloration layer is formed by anti-fake printing ink printing of discolouing, anti-fake printing ink of discolouing includes: 20-40 parts of host material, 5-10 parts of auxiliary material, 1-10 parts of guest molecule and 0.5-3 parts of polar organic solvent;
the host material is polyvinyl butyral, the auxiliary material contains carboxyl, and the guest molecule is an iodine simple substance.
In one embodiment, the polar organic solvent is contained in an amount of 0.5 to 0.8 parts.
In one embodiment, the auxiliary material is selected from at least one of a fat, a fatty acid, or a fatty acid ester.
In one embodiment, the number of carbon atoms of the auxiliary material is 11 to 17.
In one embodiment, the auxiliary material is selected from: at least one of tung oil, linseed oil, oleic acid, elaidic acid, castor oil, palmitic acid, palmitate, lauric acid, myristic acid, stearic acid, palmitic acid, glyceryl stearate, methyl stearate, ethyl stearate, arachidic acid, and rosin resin.
In one embodiment, the polar solvent is selected from: cyclohexanone, toluene cyclohexanone, chlorobenzene, dichlorobenzene, dichloromethane, methanol, ethanol, isopropanol, diethyl ether, propylene oxide, methyl acetate, ethyl acetate, propyl acetate, acetone, methyl butanone, methyl isobutyl ketone, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, acetonitrile, pyridine and phenol.
In one embodiment, the edge of the substrate layer is sealingly connected to the edge of the base layer by a removable adhesive.
In one embodiment, a second adhesive layer is further disposed on a side of the base layer away from the substrate layer.
In one embodiment, a release layer is further disposed on a side of the second adhesive layer away from the substrate layer.
In one embodiment, the substrate layer is a transparent material.
The anti-counterfeiting color-changing label comprises 20-40 parts of a host material, 5-10 parts of an auxiliary material, 1-10 parts of a guest molecule and 0.5-3 parts of a polar organic solvent. The host material comprises a tetragonal plane oxygen-containing functional group, the auxiliary material comprises a carboxyl group, the tetragonal plane oxygen-containing functional group of the host material and the carboxyl group in the auxiliary material form an O-H …: O hydrogen bond, and the tetragonal plane oxygen-containing functional group and the carboxyl group form a local cage-shaped three-dimensional host structure, so that the host material has the capacity of accommodating guest molecules. At the moment, on one hand, the color-changing layer is in a solid state, but is not completely dried, and can be independently attached to the base layer without being adhered to the base material layer; on the other hand, due to the existence of a small amount of polar organic solvent, the non-polar iodine simple substance is polarized under the action of the polar organic solvent, and can form a combination of the iodine simple substance and the organic polar organic solvent through electron cloud adsorption, so that the volume is increased, the iodine simple substance cannot be combined with a local cage-shaped three-dimensional main body structure to form a colored inclusion compound, and the color-changing layer is colorless in a first color; when the polar organic solvent is volatilized, the iodine elementary substance recovers the original volume, at the moment, the iodine elementary substance can enter the local cage-shaped three-dimensional main body structure to form a colored inclusion compound, the second color is dark green, then, the iodine elementary substance escapes to the outside along with overcoming the restraint of Edward force, the ink is colorless in the first color again, and the color changing layer has a time-delay reciprocating color changing function after being activated and has a higher anti-counterfeiting effect.
Drawings
FIG. 1 is a schematic structural diagram of a color-changing anti-counterfeit label according to an embodiment;
fig. 2 is a schematic structural diagram of another embodiment of a color-changing anti-counterfeit label.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "connected," "fixed," and the like are used broadly, and for example, the terms "connected," "connected," or "fixed" may be fixed, or detachably connected, or integrated; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In this document, parts of each raw material refer to parts by weight unless otherwise specified.
Referring to fig. 1, an embodiment of a color-changing anti-counterfeit label includes: a base layer 10, a base material layer 20, and a color changing layer 30.
The base layer 10 is used for bearing the color changing layer 30 and the base layer 20, and the base layer 10 is made of a compact material and can prevent polar organic solvent molecules and iodine simple substance molecules from escaping through penetration.
Alternatively, materials for making the substrate layer 10 include, but are not limited to: aluminum foil, PET film and PVC film.
The substrate layer 20 is disposed above the substrate layer 10, and the substrate layer 20 is made of a dense material and can prevent polar organic solvent molecules and iodine molecules from escaping through penetration.
Alternatively, materials for preparing the substrate layer 20 include, but are not limited to: aluminum foil, PET film and PVC film.
Preferably, the substrate layer 20 is made of a transparent dense material, so that a user can see the color condition of the color-changing layer 30 through the substrate layer 20, and prevent the polar organic solvent molecules and iodine molecules from escaping through the substrate layer.
Specifically, the edge of the substrate layer 20 is hermetically connected to the base layer 10, so that the intermediate position between the substrate layer 20 and the base layer 10 forms an accommodating space 12, and the accommodating space 12 is used for accommodating the color-changing layer 30.
In the present embodiment, the first adhesive layer 11 is provided on the edge of the base layer 20 on the side closer to the foundation layer, and the base layer 20 and the foundation layer 10 are hermetically connected by the first adhesive layer 11.
Optionally, the first adhesive layer 11 is removable adhesive, and when the color-changing anti-counterfeit label is used, a user can conveniently peel off the substrate layer 20, so as to activate the color-changing layer 30.
The color changing layer 30 is arranged in the accommodating space 12, the color changing layer 30 is formed by printing anti-counterfeiting color changing ink and drying to a certain degree, and the color changing layer 30 has a time-delay reciprocating color changing function.
Specifically, the color-changing layer 30 includes 20 to 40 parts of host material, 5 to 10 parts of auxiliary material, 1 to 10 parts of guest molecule, and 0.5 to 3 parts of polar organic solvent.
The host material can be dissolved in a polar organic solvent, is in a free state in a solution, and in the drying process, along with the volatilization of the polar organic solvent, the molecular kinetic energy of the host material is weakened, and oxygen-containing functional groups on four planes of the host material can form O-H …: O hydrogen bonds with carboxyl in an auxiliary material, so that a local cage-shaped three-dimensional host structure is formed, and the host material has the capacity of accommodating guest molecules.
In the present embodiment, the host material is polyvinyl butyral, and on the one hand, polyvinyl butyral, as the host material, can form a partial cage-like three-dimensional host structure with the auxiliary material through hydrogen bonds; on the other hand, polyvinyl butyral has a good film-forming effect, and can make the color-changing layer 30 firmly adhere to the base layer 10.
The auxiliary material contains carboxyl which is soluble in the polar organic solvent, the molecular kinetic energy of the auxiliary material is weakened along with the volatilization of the polar organic solvent in the drying process, and the carboxyl can form O-H …: O hydrogen bonds with oxygen-containing functional groups on a square plane in the host material so as to form a local cage-shaped three-dimensional host structure, thereby having the capacity of accommodating guest molecules.
Specifically, the auxiliary material is at least one selected from fats, fatty acids or fatty acid esters, and the auxiliary material can be a pure product of any one of the fats, fatty acids or fatty acid esters, or a mixture containing a plurality of fats, fatty acids or fatty acid esters.
Optionally, the auxiliary material is grease, and the grease is a mixture of fat, fatty acid or fatty acid ester, wherein carboxyl can form O-H …: O hydrogen bond with the tetragonal plane oxygen-containing functional group in the main material.
Further, the auxiliary material is fat, fatty acid or fatty acid ester with 11-17 carbon atoms. When the number of carbon atoms is less than 11, the auxiliary material has excessively strong hydrophilicity and low surface activity, and carboxyl of the auxiliary material and a tetragonal plane oxygen-containing functional group of hydrophobic polyvinyl butyral are difficult to form an O-H …: O hydrogen bond; when the number of carbon atoms is more than 17, the solubility of the material in a polar organic solvent is too low, and the carboxyl and the tetragonal plane oxygen-containing functional group in the host material form O-H …, wherein the O hydrogen bond number is low, so that the color change effect is not obvious; and when the number of the carbon atoms is 11-17, on one hand, the auxiliary material has good surface activity and good affinity with the hydrophobic main body material, so that carboxyl groups of the auxiliary material can form O-H …: O hydrogen bonds with oxygen-containing functional groups in the square planes in the main body material, and on the other hand, the auxiliary material can be dissolved and dispersed in a polar organic solvent, thereby creating conditions for the carboxyl groups and the oxygen-containing functional groups in the square planes in the main body material to form O-H …: O hydrogen bonds.
Further, the auxiliary material is at least one selected from tung oil, linseed oil, oleic acid, elaidic acid, castor oil, palmitic acid, palmitate, lauric acid, myristic acid, stearic acid, palmitic acid, glyceryl stearate, methyl stearate, ethyl stearate, arachidic acid and rosin resin.
The guest molecules are iodine simple substances and can be dissolved in a polar organic solvent, when the iodine simple substances are dissolved, the nonpolar iodine simple substances are polarized under the action of the polar organic solvent, and a combination of the iodine simple substances and the polar organic solvent can be formed through electron cloud adsorption, so that the volume is increased, the iodine simple substance molecules cannot enter a local cage-shaped three-dimensional host structure to form a colored inclusion compound, and the color-changing ink is colorless in a first color; when the polar organic solvent is volatilized, the iodine elementary substance recovers the original volume, at the moment, the iodine elementary substance can enter a local cage-shaped three-dimensional main body structure to form a colored inclusion compound, so that a second color is dark green, and then, the iodine elementary substance escapes to the outside along with overcoming the restraint of Edward force, so that the ink is colorless in the first color again. Because the volatilization of the polar organic solvent and the escape of the iodine simple substance need a certain time, the color change has a time delay function.
And the polar organic solvent is used for dissolving the host material, the auxiliary material and the guest molecules and polarizing the guest molecules, so that the guest molecules and the polar organic solvent molecules form a large-volume combination through electron cloud adsorption. The content of the polar organic solvent in the color-changing layer 30 can be controlled by controlling the drying time and the drying temperature after the color-changing ink is printed, so that the content of the polar organic solvent is 0.5 to 3 parts.
Specifically, when the content of the polar organic solvent is greater than 3 parts, the color-changing layer 30 is too high in content of the polar organic solvent, on one hand, the color-changing layer 30 is not enough in bonding fastness due to insufficient drying and is easy to adhere or smear with the substrate layer 20, and on the other hand, after the color-changing anti-counterfeit label is activated, the time for the color-changing layer 30 to be changed into the second color from the first color is greatly prolonged, so that the significance of the anti-counterfeit verification is reduced. When the content of the polar organic solvent is 0.5-3 parts, on one hand, the color-changing layer 30 has enough bonding fastness and cannot be adhered or smeared with the substrate layer 20, so that the color-changing layer 30 has strong stability, and on the other hand, because the color-changing layer 30 contains a small amount of polar organic solvent, the guest molecules still form a combined body through electron cloud adsorption with the polar organic solvent, and because the volume of the combined body is large, the guest molecules cannot enter a local cage-shaped three-dimensional host structure, so that the anti-counterfeiting color-changing ink is colorless in the first color. When the content of the polar organic solvent is less than 0.5 part, the content of the polar organic solvent is too low, a combination formed by the polar organic solvent and guest molecules starts to disintegrate, part of the guest molecules are presented in a monomer form and enter a part of cage-shaped three-dimensional host structure to form a colored inclusion compound, and a weak second color is presented, so that the color change range generated after the color-changing anti-counterfeiting label is activated is reduced, and the significance of anti-counterfeiting verification is reduced.
Preferably, the content of the polar organic solvent is 0.5 to 0.8, and in this content range, a part of the polar organic solvent exists in the accommodating space 12 in the form of vapor after being volatilized, and reaches a dynamic balance of volatilization and combination in the accommodating space 12, at this time, the guest molecules in the color-changing layer 30 and the local cage-shaped three-dimensional host structure are at a color-changing critical point, when a user uncovers the substrate layer 20, due to the decrease of the vapor pressure in the accommodating space 12, the volatilization speed of the polar organic solvent increases, and along with the volatilization of the polar organic solvent, the guest molecules can be rapidly combined with the local cage-shaped three-dimensional host structure to form a colored inclusion compound, so that the color-changing layer 30 can generate an obvious color change in a very short time, and the significance of the anti-counterfeit verification is further enhanced.
Alternatively, the polar organic solvent is selected from: cyclohexanone, toluene cyclohexanone, chlorobenzene, dichlorobenzene, dichloromethane, methanol, ethanol, isopropanol, diethyl ether, propylene oxide, methyl acetate, ethyl acetate, propyl acetate, acetone, methyl butanone, methyl isobutyl ketone, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, acetonitrile, pyridine and phenol.
In another embodiment, referring to fig. 2, a second adhesive layer 40 is further disposed on a side of the base layer 10 away from the substrate layer 20, and the second adhesive layer 40 is used for attaching the color-changing anti-counterfeit label to an object.
In the embodiment shown in fig. 2, a release layer 50 is further disposed on a side of the second adhesive layer 40 away from the substrate layer 10, and the release layer 50 is used for protecting the second adhesive layer 40 to prevent the second adhesive layer 40 from being unnecessarily adhered to an object.
The anti-counterfeiting color-changing label comprises 20-40 parts of a host material, 5-10 parts of an auxiliary material, 1-10 parts of a guest molecule and 0.5-3 parts of a polar organic solvent. The host material comprises a tetragonal plane oxygen-containing functional group, the auxiliary material comprises a carboxyl group, the tetragonal plane oxygen-containing functional group of the host material and the carboxyl group in the auxiliary material form an O-H …: O hydrogen bond, and the tetragonal plane oxygen-containing functional group and the carboxyl group form a local cage-shaped three-dimensional host structure, so that the host material has the capacity of accommodating guest molecules. At this time, on one hand, the color-changing layer 30 is in a solid state, but is not completely dried, and can be independently attached to the base layer 10 without being adhered to the base layer 20; on the other hand, due to the existence of a small amount of polar organic solvent, the non-polar iodine simple substance is polarized under the action of the polar organic solvent, and can form a combination of the iodine simple substance and the organic polar organic solvent through electron cloud adsorption, so that the volume is increased, the iodine simple substance and a local cage-shaped three-dimensional main body structure cannot be combined to form a colored inclusion compound, and the color-changing layer is colorless in the first color; when the polar organic solvent is volatilized, the iodine elementary substance recovers the original volume, at the moment, the iodine elementary substance can enter the local cage-shaped three-dimensional main body structure to form a colored inclusion compound, the second color is dark green, then, the iodine elementary substance escapes to the outside along with overcoming the restraint of Edward force, the ink is colorless in the first color again, and the color changing layer has a time-delay reciprocating color changing function after being activated and has a higher anti-counterfeiting effect.
Specific examples are as follows.
Example 1
The embodiment provides a color-changing anti-counterfeit label, which comprises a substrate layer 10, a substrate layer 20 and a color-changing layer 30. The base layer 10 is made of aluminum foil, the base layer 20 is made of a transparent compact material PVC film, the edge of the base layer 20 is hermetically connected with the edge of the base layer 10, the accommodating space 12 is formed in the middle position, the color-changing layer 30 is arranged in the accommodating space 12, and the color-changing layer 30 includes 20 parts of host material polyvinyl butyral, 5 parts of auxiliary material, 1 part of guest molecular iodine simple substance and 0.5 part of polar organic solvent, in this embodiment, the auxiliary material is stearic acid, and the polar organic solvent is isopropyl alcohol.
Above-mentioned antifalsification label discolours, before the use, the discoloration layer 30 of antifalsification label discolours is colourless, after revealing substrate layer 20, discoloration layer 30 exposes in the air in, polarity organic solvent volatilizes fast, discoloration layer 30 can be in 10 seconds fast by the colourless gradual change of first colour into the dark green of second colour, later within 3 minutes by the dark green of second colour gradually turn back first colour colourless, the reciprocal function of discolouing of low time delay is showing, has excellent anti-fake function.
Example 2
The color-changing anti-counterfeit label provided by the embodiment is similar to the color-changing anti-counterfeit label provided by the embodiment 1, and the difference is that: the mass portion of the polar organic solvent is 0.8 portion.
Above-mentioned antifalsification label discolours, before the use, the discoloration layer 30 of antifalsification label discolours is first colour colourless, after uncovering substrate layer 20, discoloration layer 30 exposes in the air, and polarity organic solvent volatilizes fast, and discoloration layer 30 gradually becomes the dark green of second colour by first colour in 15 seconds fast, and then becomes first colour colourless by the dark green of second colour gradually within 3 minutes, and the reciprocal function of discolouing of low time delay is showing, has excellent anti-fake function.
Example 3
The color-changing anti-counterfeit label provided by the embodiment is similar to the color-changing anti-counterfeit label provided by the embodiment 1, and the difference is that: the mass portion of the polar organic solvent is 1.0 portion.
Above-mentioned antifalsification label discolours, before the use, the discoloration layer 30 of the antifalsification label discolours is first colour colourless, after uncovering the substrate layer 20, discoloration layer 30 exposes in the air in the middle of, polarity organic solvent volatilizes fast, discoloration layer 30 becomes the dark green of second colour gradually by first colour in 60 seconds, becomes first colour colourless gradually back by the dark green of second colour within 3 minutes afterwards, the reciprocal function of discolouing of time delay is showing, has better anti-fake function.
Example 4
The color-changing anti-counterfeit label provided by the embodiment is similar to the color-changing anti-counterfeit label provided by the embodiment 1, and the difference is that: (1) the mass portion of the main material (polyvinyl butyral) is 30 portions; (2) the auxiliary material is oleic acid, and the mass portion of the auxiliary material is 7 portions; (3) the mass portion of the guest molecule (iodine simple substance) is 2 portions; (4) the polar organic solvent is ethanol, and the mass portion of the polar organic solvent is 1.5 portions.
Above-mentioned antifalsification label discolours, before the use, the discoloration layer 30 of the antifalsification label discolours is first colour colourless, after uncovering the substrate layer 20, discoloration layer 30 exposes in the air in the middle of, polarity organic solvent volatilizes fast, discoloration layer 30 becomes the dark green of second colour gradually by first colour in 100 seconds, becomes first colour colourless gradually back by the dark green of second colour within 10 minutes afterwards, the reciprocal function of discolouing of time delay is showing, has better anti-fake function.
Example 5
The color-changing anti-counterfeit label provided by the embodiment is similar to the color-changing anti-counterfeit label provided by the embodiment 1, and the difference is that: (1) 35 parts of a main material (polyvinyl butyral); (2) the auxiliary material is lauric acid, and the mass portion of the auxiliary material is 9 portions; (3) the mass portion of the guest molecules (iodine simple substance) is 3.5 portions; (4) the polar organic solvent is acetone, and the mass portion of the polar organic solvent is 2.5 portions.
Above-mentioned antifalsification label discolours, before the use, the discoloration layer 30 of the antifalsification label discolours is first colour colourless, after uncovering the substrate layer 20, discoloration layer 30 exposes in the air in the middle of, polarity organic solvent volatilizes fast, discoloration layer 30 becomes the dark green of second colour gradually by first colour in 120 seconds, becomes first colour colourless gradually back by the dark green of second colour within 15 minutes afterwards, the reciprocal function of discolouing of time delay is showing, has better anti-fake function.
Example 6
The color-changing anti-counterfeit label provided by the embodiment is similar to the color-changing anti-counterfeit label provided by the embodiment 1, and the difference is that: (1) the mass portion of the main material (polyvinyl butyral) is 40 portions; (2) the auxiliary material is stearic acid, and the mass portion of the auxiliary material is 10 portions; (3) the mass portion of the guest molecule (iodine simple substance) is 5 portions; (4) the polar organic solvent is cyclohexanone, and the mass portion of the polar organic solvent is 3 portions.
Above-mentioned antifalsification label discolours, before the use, the discoloration layer 30 of the antifalsification label discolours is first colour colourless, after uncovering the substrate layer 20, discoloration layer 30 exposes in the air in the middle of, polarity organic solvent volatilizes fast, discoloration layer 30 becomes the dark green of second colour gradually by first colour in 150 seconds, becomes first colour colourless gradually back by the dark green of second colour within 18 minutes afterwards, the reciprocal function of discolouing of time delay is showing, has certain anti-fake function.
Comparative example 1
The color-changing anti-counterfeit label provided by this embodiment is similar to the color-changing anti-counterfeit label provided by embodiment 1, and the difference lies in that: (1) the mass portion of the polar organic solvent is 0.3 portion.
Above-mentioned antifalsification label discolours, before the use, the discoloration layer 30 of the antifalsification label discolours is the light green of weak second colour, after revealing substrate layer 20, discoloration layer 30 exposes in the air in the middle of, the polarity organic solvent volatilizes fast, discoloration layer 30 is become dark second colour dark green gradually by the light green of weak second colour in 8 seconds, is afterwards turned back first colour colorless gradually by the dark green of second colour within 3 minutes. However, the color changing layer 30 changes from the weak second color to the dark second color, the visual change is not obvious, and thus the anti-counterfeiting effect is weak.
Comparative example 2
The color-changing anti-counterfeit label provided by the embodiment is similar to the color-changing anti-counterfeit label provided by the embodiment 1, and the difference is that: (1) the mass portion of the polar organic solvent is 5 portions.
Above-mentioned antifalsification label discolours, before the use, the discoloration layer 30 of the antifalsification label discolours is first colour colourless, after revealing substrate layer 20, 30% discoloration layer 30 of the antifalsification label discolours leads to droing because of taking place the adhesion with substrate layer 20, 70% discoloration layer 30 of the antifalsification label discolours is the dark green of second colour by first colour colourless gradually in 180 seconds, later within 3 minutes by the dark green of second colour gradually turn back first colour colourless. Therefore, the color-changing anti-counterfeit label provided by the embodiment has obvious quality problems.
It can be known from the above embodiments that the color-changing layer 30 of the color-changing anti-counterfeit label of each embodiment is colorless in the first color in the initial state, after the substrate layer 20 is uncovered, the guest molecules are combined with the local cage-shaped three-dimensional host structure to form a colored inclusion compound along with the volatilization of the polar organic solvent, the color-changing layer 30 is dark green in the second color, and finally, the color-changing layer 30 is colorless in the first color along with the escape of the iodine simple substance. When the mass fraction of the polar organic solvent is less than 0.3 parts, the characteristic that the discoloring layer changes from the first color to the second color is not sufficiently conspicuous. When the mass portion of the polar organic solvent is 0.5-0.8, the color-changing layer 30 can be changed from the first color to the second color in a short time, and the low-delay reciprocating color-changing function is obvious. When the mass portion of the polar organic solvent is 0.8 to 3, the time for the color-changing layer 30 to change from the first color to the second color is greatly increased, thereby reducing the remarkable characteristics of the anti-counterfeiting authentication. When the mass part of the polar organic solvent is more than 3 parts, the color-changing anti-counterfeiting label has obvious quality problem.
The formulations of the color-changeable inks of examples 1 to 6 and comparative examples 1 to 2 are shown in the following tables.
TABLE 1 comparison table of the formulations of the discoloring layers of the examples
Figure BDA0003678284550000111
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A color-changing security label, comprising:
a base layer made of a dense material;
the base layer is made of compact materials and is arranged above the base layer in a laminated mode, the edge of the base layer is connected with the edge of the base layer in a sealing mode, and an accommodating space is formed between the base layer and the base layer;
the discoloration layer, set up in the accommodation space, discoloration layer is formed by anti-fake printing ink printing of discolouing, anti-fake printing ink of discolouing includes: 20-40 parts of host material, 5-10 parts of auxiliary material, 1-10 parts of guest molecule and 0.5-3 parts of polar organic solvent;
the host material is polyvinyl butyral, the auxiliary material contains carboxyl, and the guest molecule is an iodine simple substance.
2. The color-changing anti-counterfeit label according to claim 1, wherein the polar organic solvent is contained in an amount of 0.5 to 0.8 parts.
3. The color-changing security label according to claim 1, wherein the auxiliary material is selected from at least one of a fat, a fatty acid, or a fatty acid ester.
4. The color-changing anti-counterfeit label according to claim 3, wherein the number of carbon atoms of the auxiliary material is 11 to 17.
5. The color-changing security label according to claim 4, wherein the auxiliary material is selected from the group consisting of: at least one of tung oil, linseed oil, oleic acid, elaidic acid, castor oil, palmitic acid, palmitate, lauric acid, myristic acid, stearic acid, palmitic acid, glyceryl stearate, methyl stearate, ethyl stearate, arachidic acid, and rosin resin.
6. The color-changing security label according to claim 1, wherein the polar solvent is selected from the group consisting of: cyclohexanone, toluene cyclohexanone, chlorobenzene, dichlorobenzene, dichloromethane, methanol, ethanol, isopropanol, diethyl ether, propylene oxide, methyl acetate, ethyl acetate, propyl acetate, acetone, methyl butanone, methyl isobutyl ketone, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, acetonitrile, pyridine and phenol.
7. The color-changing anti-counterfeiting label according to claim 1, wherein the edge of the substrate layer is connected with the edge of the base layer in a sealing manner through removable glue.
8. The color-changing anti-counterfeiting label according to any one of claims 1 to 7, wherein a second adhesive layer is further arranged on one side of the base layer away from the base layer.
9. The color-changing anti-counterfeit label according to claim 8, wherein a release layer is further disposed on a side of the second adhesive layer away from the substrate layer.
10. The color-changing anti-counterfeiting label according to claim 1, wherein the substrate layer is a transparent material.
CN202210627569.5A 2022-06-06 2022-06-06 Color-changing anti-counterfeiting label Active CN114913763B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210627569.5A CN114913763B (en) 2022-06-06 2022-06-06 Color-changing anti-counterfeiting label

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210627569.5A CN114913763B (en) 2022-06-06 2022-06-06 Color-changing anti-counterfeiting label

Publications (2)

Publication Number Publication Date
CN114913763A true CN114913763A (en) 2022-08-16
CN114913763B CN114913763B (en) 2024-08-27

Family

ID=82769990

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210627569.5A Active CN114913763B (en) 2022-06-06 2022-06-06 Color-changing anti-counterfeiting label

Country Status (1)

Country Link
CN (1) CN114913763B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1569337A1 (en) * 1964-01-10 1970-03-26 Riegel Paper Corp Packaging material and coating compounds for application to such
WO2005068566A1 (en) * 2004-01-20 2005-07-28 Ciba Specialty Chemicals Holding Inc. Organic solvent-based printing inks
CN102858111A (en) * 2012-09-24 2013-01-02 上海蓝沛新材料科技股份有限公司 Novel electronic housing with antenna function and manufacturing method of novel electronic housing
CN103173064A (en) * 2006-05-11 2013-06-26 爱克发印艺公司 Method for manufacturing pigmented inks
CN109796813A (en) * 2019-01-16 2019-05-24 深圳九星印刷包装集团有限公司 Color shifting ink and preparation method thereof and its application
CN111440568A (en) * 2020-04-16 2020-07-24 深圳九星印刷包装集团有限公司 Color-changing glue, color-changing glue film and preparation method of color-changing glue film
CN113570961A (en) * 2021-08-03 2021-10-29 深圳九星印刷包装集团有限公司 Anti-counterfeit label

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1569337A1 (en) * 1964-01-10 1970-03-26 Riegel Paper Corp Packaging material and coating compounds for application to such
WO2005068566A1 (en) * 2004-01-20 2005-07-28 Ciba Specialty Chemicals Holding Inc. Organic solvent-based printing inks
CN103173064A (en) * 2006-05-11 2013-06-26 爱克发印艺公司 Method for manufacturing pigmented inks
CN102858111A (en) * 2012-09-24 2013-01-02 上海蓝沛新材料科技股份有限公司 Novel electronic housing with antenna function and manufacturing method of novel electronic housing
CN109796813A (en) * 2019-01-16 2019-05-24 深圳九星印刷包装集团有限公司 Color shifting ink and preparation method thereof and its application
CN111440568A (en) * 2020-04-16 2020-07-24 深圳九星印刷包装集团有限公司 Color-changing glue, color-changing glue film and preparation method of color-changing glue film
CN113570961A (en) * 2021-08-03 2021-10-29 深圳九星印刷包装集团有限公司 Anti-counterfeit label

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王海东;戴俊萍;: "浅谈防伪油墨的防伪应用", 广东印刷, no. 06, 20 December 2013 (2013-12-20), pages 38 - 39 *

Also Published As

Publication number Publication date
CN114913763B (en) 2024-08-27

Similar Documents

Publication Publication Date Title
JP6098895B2 (en) Method for producing polycarbonate multilayer structure
US4028118A (en) Thermochromic materials
FR2912414A1 (en) INK COMPOSITION FOR INKJET PRINTING.
RU2018118792A (en) METHOD FOR PRODUCING PANELS WITH DECORATIVE SURFACE
JP2000313166A (en) Transferable image medium
CN114211894B (en) Color re-transfer printing film for transparent soft label base material
CN114913763A (en) Color-changing anti-counterfeit label
CN101774296A (en) Ink jet recording method, recorded product, ink composition for ink jet recording, ink set, ink cartridge, and ink jet recording apparatus
JP6474933B1 (en) ANCHOR COAT COMPOSITION FOR ACTIVE ENERGY RAY CURABLE INKJET INK, ACTIVE ENERGY RAY CURABLE INKJET INK SET, ACTIVE ENERGY RAY CURABLE INKJET INK PRINTED MATERIAL, AND METHOD FOR PRODUCING ACTIVE ENERGY RAY CURABLE INKJET INK PRINTED
JP2012007089A (en) Ink composition, image recording method and laminate
JPH11323223A (en) Ink-jet ink and its production
CN111440568A (en) Color-changing glue, color-changing glue film and preparation method of color-changing glue film
WO2004087432A1 (en) Inkjet recording material, printing matter laminate using it and production method for printing matter pasting element
JP2021080402A (en) Liquid printing ink, and laminate
JP2017159627A (en) Protection film, laminate for decorative molding, and decorative molding
JP5853832B2 (en) Printing ink composition for styrene film
JP4728817B2 (en) Information hiding sheet
US11104817B2 (en) Film lamination inks
WO2022079994A1 (en) Oil-based ink composition, printing film, laminate film, and packaging material
DE102014016674A1 (en) A coating composition for a heat-sealable, inkjet-printable image transfer material
US8114922B2 (en) Ink and laminated sheet
JP2011170064A (en) Sticking member and recorded material
CN113608425A (en) Time indicating device
CN114958073B (en) Ultraviolet radiation indicating ink and ultraviolet radiation indicating device
US20080026445A1 (en) Oxygen scavenger coating composition

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant