CN112962353A - Cigarette tipping paper and preparation method and application thereof - Google Patents
Cigarette tipping paper and preparation method and application thereof Download PDFInfo
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- CN112962353A CN112962353A CN202110128056.5A CN202110128056A CN112962353A CN 112962353 A CN112962353 A CN 112962353A CN 202110128056 A CN202110128056 A CN 202110128056A CN 112962353 A CN112962353 A CN 112962353A
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- Prior art keywords
- counterfeiting
- cigarette
- watermark
- tipping paper
- paper
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- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/18—Paper- or board-based structures for surface covering
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/02—Cigars; Cigarettes with special covers
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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
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/333—Watermarks
-
- 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
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/28—Polyesters
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/82—Paper comprising more than one coating superposed
- D21H19/824—Paper comprising more than one coating superposed two superposed coatings, both being non-pigmented
Abstract
The invention relates to the technical field of tobacco, in particular to tipping paper for watermark anti-counterfeiting cigarettes and a preparation method and application thereof. The anti-counterfeiting tipping paper for the cigarette comprises an anti-counterfeiting tipping paper base paper layer, a transparent resin layer and a transparent ink layer which are sequentially stacked, wherein the anti-counterfeiting tipping paper base paper layer comprises a cigarette tipping paper base paper and a watermark anti-counterfeiting pattern printed on the cigarette tipping paper base paper, the transparent resin layer is arranged on one side of the anti-counterfeiting tipping paper base paper layer, which is far away from the watermark anti-counterfeiting pattern, the transmissivity of the transparent resin layer is more than or equal to 80%, and the transmissivity of the transparent ink layer is 12.5% -73%.
Description
Technical Field
The invention relates to the technical field of tobacco, in particular to tipping paper for cigarettes and a preparation method and application thereof.
Background
Tobacco product counterfeiting has been a major problem facing the whole cigarette industry. The cigarette tipping paper is special paper for tipping the filter tip and the cigarette, and the cigarette tipping paper is the part of the cigarette which is most attractive to the attention of consumers. Therefore, the anti-counterfeiting label of the cigarette is usually arranged on the tipping paper for the cigarette.
Common anti-counterfeiting marks on tipping paper for cigarettes are mostly temperature-variable anti-counterfeiting patterns and ultraviolet-variable anti-counterfeiting patterns. The temperature change anti-counterfeiting function is realized by generating an anti-counterfeiting effect through the temperature change of the position of the tipping paper in the suction process, but the anti-counterfeiting technology is greatly influenced by the environmental temperature, so that the phenomena of ink failure and anti-counterfeiting pattern failure are easy to occur. The ultraviolet light becomes anti-fake function's realization, uses ultraviolet ray to shine cigarette tipping paper part through the consumer is artificial to observe anti-fake pattern, but this kind of anti-fake technique needs special ultraviolet irradiation light source, realizes comparatively difficultly.
Therefore, the development of the cigarette tipping paper with the anti-counterfeiting function, which is easy to realize and stable, has important significance.
Disclosure of Invention
Therefore, the cigarette tipping paper which is easy to realize and has a stable and durable anti-counterfeiting function and the preparation method and the application thereof are needed to be provided.
The invention provides tipping paper for watermark anti-counterfeiting cigarettes, which comprises an anti-counterfeiting tipping paper base paper layer, a transparent resin layer and a transparent ink layer which are sequentially stacked, wherein the anti-counterfeiting tipping paper base paper layer comprises a cigarette tipping paper base paper and a watermark anti-counterfeiting pattern printed on the cigarette tipping paper base paper, the transparent resin layer is arranged on one side of the anti-counterfeiting tipping paper base paper layer, which is far away from the watermark anti-counterfeiting pattern, the transmissivity of the transparent resin layer is more than or equal to 80%, and the transmissivity of the transparent ink layer is 12.5-73%.
In one embodiment, the resin forming the transparent resin layer is selected from one or more of polycarbonate resin, polyurethane resin, and polylactic acid resin.
In one embodiment, the weight average molecular weight of the resin forming the transparent resin layer is 524 to 20,000.
In one embodiment, the base paper layer of the tipping paper for cigarettes has the transmittance of 15-30%.
In one embodiment, the watermark anti-counterfeiting pattern is a white watermark pattern or a black watermark pattern.
In one embodiment, the transmittance of the transparent ink layer is 50% to 73%.
In one embodiment, the watermark security pattern is formed by gravure printing with watermark ink.
In one embodiment, the transparent resin layer is formed by any one of composite transfer, lamination, hot melt coating, or gravure printing.
The invention also provides a preparation method of the tipping paper for the watermark anti-counterfeiting cigarette, which comprises the following steps:
providing base paper of tipping paper for cigarettes, and forming a transparent resin layer on one side surface of the base paper of the tipping paper for cigarettes;
forming a transparent ink layer on the transparent resin layer; and
and printing a watermark anti-counterfeiting image on the other side surface of the cigarette tipping paper base paper.
In a further aspect of the invention, a cigarette is provided, which comprises a filter tip and a cigarette rod, wherein the filter tip comprises a filter rod and tipping paper wrapping the filter rod, the tipping paper is the tipping paper for the watermark anti-counterfeiting cigarette, and the distance between one end of the filter tip, which is far away from the cigarette rod, and the watermark anti-counterfeiting pattern is less than or equal to 15mm along the length direction of the cigarette rod.
In another aspect of the present invention, an anti-counterfeit identification method for cigarettes is provided, which comprises the following steps:
and arranging a point light source at one end of the cigarette filter, which is far away from the cigarette, and observing the anti-counterfeiting pattern through the irradiation of the point light source.
The anti-counterfeiting technology for printing the watermark refers to that the paper achieves the watermark effect through a printing process and watermark ink. Under the action of printing pressure, the watermark ink permeates into the paper through free permeation and pressurization to fill the pores of the paper, and the air in the paper is squeezed away to replace fiber-air and filler-air interfaces, so that the optical property of the interior of the paper at the position of the watermark ink is changed, and the transparency of the paper at the position is improved or reduced. The transparency is improved by white watermark, and the transparency is reduced by black watermark. The anti-counterfeiting technology for printing the watermark has higher requirements on paper, and the ideal permeation effect of the watermark ink under the printing pressure and the capillary action must be ensured. The existing tipping base paper for cigarettes has poor adhesion to watermark ink, so that oil leakage is easily caused and watermark anti-counterfeiting cannot be realized. In order to overcome the problem, the inventor of the invention firstly adopts the technical scheme that the transparent resin layer is arranged on the base paper of the cigarette tipping paper to improve the adhesive force of the base paper of the cigarette tipping paper to the printing ink, and the resin is a polymer formed by high polymerization of small molecules and has high molecular weight, so that the permeation and swelling of the small molecules such as oil vapor and the like can be limited, the adhesive force of the base paper of the cigarette tipping paper to the printing ink is effectively improved, the oil leakage is prevented, and meanwhile, the resin layer and the printing ink layer with proper transmissivity are matched, so that the anti-counterfeiting function is realized by printing the watermark anti. The tipping paper for the watermark anti-counterfeiting cigarette provided by the invention has the advantages that the watermark pattern can not be seen when the tipping paper is observed from the front, the watermark pattern can be obviously observed when the tipping paper is observed from light, the anti-counterfeiting effect is better, stable and durable, the anti-counterfeiting effect can be observed by adopting any living point light source, and the realization is easier.
Drawings
Fig. 1 is a schematic structural diagram of tipping paper for watermark anti-counterfeiting cigarettes according to one embodiment of the invention;
fig. 2 is a photograph of an anti-counterfeit cigarette identification provided by an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Other than as shown in the operating examples, or where otherwise indicated, all numbers expressing quantities of ingredients, physical and chemical properties, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about". For example, unless indicated to the contrary, the numerical parameters set forth in the foregoing specification and attached claims are approximations that can be suitably varied by those skilled in the art in seeking to obtain the desired properties utilizing the teachings disclosed herein. The use of numerical ranges by endpoints includes all numbers within that range and any range within that range, for example, 1 to 5 includes 1, 1.1, 1.3, 1.5, 2, 2.75, 3, 3.80, 4, and 5, and the like.
The anti-counterfeiting technology for printing the watermark refers to that the paper achieves the watermark effect through a printing process and watermark ink. Under the action of printing pressure, the watermark ink permeates into the paper through free permeation and pressurization to fill the pores of the paper, and the air in the paper is squeezed away to replace fiber-air and filler-air interfaces, so that the optical property of the interior of the paper at the position of the watermark ink is changed, and the transparency of the paper at the position is improved or reduced. The transparency is improved by white watermark, and the transparency is reduced by black watermark. The anti-counterfeiting technology for printing the watermark has higher requirements on paper, and the ideal permeation effect of the watermark ink under the printing pressure and the capillary action must be ensured. The existing tipping base paper for cigarettes has poor adhesion to watermark ink, so that oil leakage is easily caused and watermark anti-counterfeiting cannot be realized.
In order to overcome the problem, the present invention provides a tipping paper for watermark anti-counterfeiting cigarettes, and please refer to fig. 1, the tipping paper for watermark anti-counterfeiting cigarettes comprises an anti-counterfeiting tipping paper base paper layer 10, a transparent resin layer 20 and a transparent ink layer 30 which are sequentially stacked, the anti-counterfeiting tipping paper base paper layer 10 comprises a cigarette tipping base paper 11 and a watermark anti-counterfeiting pattern 12 printed on the cigarette tipping base paper, the transparent resin layer 20 is disposed on one side of the anti-counterfeiting tipping paper base paper layer 10 away from the watermark anti-counterfeiting pattern 12, the transmittance of the transparent resin layer 20 is greater than or equal to 80%, and the transmittance of the transparent ink layer 30 is 12.5% to 73%.
The invention provides a tipping paper for watermark anti-counterfeiting cigarettes, which adopts the technical scheme that a transparent resin layer is arranged on the base paper of the tipping paper for cigarettes to improve the adhesive force of the base paper of the tipping paper for cigarettes to printing ink, and the resin is a polymer formed by high polymerization of small molecules and has high molecular weight, so that the permeation and swelling of small molecules such as oil vapor and the like can be limited, the adhesive force of the base paper of the tipping paper to the printing ink is effectively improved, oil leakage is prevented, and meanwhile, the resin layer and the printing ink layer with proper transmissivity are matched, so that the anti-counterfeiting function is realized by printing a watermark anti-.
The tipping paper for the watermark anti-counterfeiting cigarette provided by the invention has the advantages that the watermark pattern can not be seen when the tipping paper is observed from the front, the watermark pattern can be obviously observed when the tipping paper is observed by light, and the anti-counterfeiting effect is better, stable and durable.
Further, the resin forming the transparent resin layer 20 is preferably one or more of polycarbonate resin, polyurethane resin, and polylactic acid resin. The three resins, namely polycarbonate resin, polyurethane resin and polylactic acid resin, have lower branching degree, form hydrogen bonds among molecules and have large intermolecular force, so that intermolecular gaps are smaller, the permeation and swelling of small molecules such as oil vapor and the like can be more effectively limited, and the adhesive force of the base paper of the cigarette tipping paper to the printing ink is better improved.
Further, the weight average molecular weight of the resin forming the transparent resin layer may be any value between 524 and 20,000, and may also be, for example, 600, 700, 800, 900, 1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000, 10000, 15000, 18000.
The transmittance of the transparent resin layer 20 may be 80% or more, preferably 85% or more, and more preferably 90% or more.
The transmittance of the base paper layer 10 of the tipping paper for cigarettes may be any value between 15% and 30%, for example 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%. The transmissivity of the base paper layer of the tipping paper for the cigarette is in the range, so that the watermark anti-counterfeiting pattern is easier to form, the more obvious watermark anti-counterfeiting pattern can be seen through light transmission observation, and the anti-counterfeiting effect is better.
The watermark anti-counterfeiting pattern can be a white watermark pattern or a black watermark pattern.
The transmittance of the transparent ink layer 30 may be any value between 12.5% and 73%, and may be, for example, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%. Preferably, the transmittance of the transparent ink layer 30 is 50% to 73%.
In some embodiments, the watermark security pattern 12 is formed by intaglio printing from a watermark ink. The intaglio printing is preferably laser engraved intaglio printing. By adopting a gravure printing process, particularly laser engraving gravure printing, the watermark anti-counterfeiting pattern can be clearer.
The water mark ink can be white water mark ink or black water mark ink. In an embodiment, the watermark ink is a white watermark ink, and the refractive index of the white watermark ink may be any value between 1.4 and 1.6, such as 1.42, 1.45, 1.47, 1.5, 1.52, 1.55, and 1.57. The refractive index is within the range and is closer to 1.5 of the refractive index of the fibers in the tipping base paper, so that the anti-counterfeiting effect of the watermark anti-counterfeiting pattern can be better. In another embodiment, the watermark ink is a black watermark ink, and the transmittance of the black watermark ink may be any value between 0% and 10%, for example, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%. The black watermark ink with the transmissivity within the range forms a certain contrast with the light transmission of the tipping paper base paper, and the watermark pattern is obviously black when observed by light, so that the anti-counterfeiting effect is better.
In some embodiments, the viscosity of the watermark ink is between 20s and 23s (British 2# Wright cup, 25 ℃). Within this viscosity range, the watermark ink is easier to print.
The invention also provides a preparation method of the tipping paper for the watermark anti-counterfeiting cigarette, which comprises the following steps:
providing a base tipping paper 11 for cigarettes, and forming a transparent resin layer 20 on one surface of the base tipping paper 11 for cigarettes;
forming a transparent ink layer 30 on the transparent resin layer 20; and
and printing a watermark anti-counterfeiting figure 12 on the other side surface of the cigarette tipping paper base paper 11.
The method of forming the transparent resin layer 20 may be any one of composite transfer, lamination, hot melt coating, or gravure printing. In one embodiment, the transparent resin layer 20 formed by composite transfer is arranged on one side of the anti-counterfeiting tipping paper base paper layer 10. In one embodiment, one side of the anti-counterfeiting tipping paper base paper layer 10 is provided with the transparent resin layer 20 formed by a laminating process. In one embodiment, one side of the anti-counterfeiting tipping paper base paper layer 10 is provided with the transparent resin layer 20 formed by hot melt coating. In one embodiment, one side of the anti-counterfeiting tipping paper base paper layer 10 is provided with the transparent resin layer 20 formed by printing. The resin layers formed by different processes of composite transfer, film spraying, hot-melt coating or gravure printing can improve the adhesive force of the base paper of the cigarette tipping paper to the watermark ink. Different processes may affect the bonding force between the resin layer 20 and the base paper layer 10 of the anti-counterfeit tipping paper.
The method of forming the transparent ink layer 30 may be any one of a lamination, a hot melt coating, or a gravure printing. In one embodiment, the transparent ink layer 30 is formed on one side of the transparent resin layer 20 by a lamination process. In one embodiment, the transparent ink layer 30 formed by hot-melt coating is disposed on one side of the transparent resin layer 20. In one embodiment, the transparent ink layer 30 is formed by printing on one side of the transparent resin layer 20.
Further, the preparation method of the tipping paper for the watermark anti-counterfeiting cigarette further comprises the following steps: slitting, rewinding, punching and the like.
The invention further provides a cigarette, which comprises a filter tip and a cigarette, wherein the filter tip comprises a filter rod and tipping paper wrapping the filter rod, the tipping paper is the tipping paper for the watermark anti-counterfeiting cigarette, and the distance between one end of the filter tip, which is far away from the cigarette, and the watermark anti-counterfeiting pattern is less than or equal to 15mm along the length direction of the cigarette.
Along a cigarette length direction, work as the filter tip is kept away from the one end of cigarette props up with when the distance between the watermark anti-counterfeiting pattern is greater than 15mm, can't observe the watermark anti-counterfeiting pattern, can't realize anti-fake function.
Along a cigarette length direction, the filter tip is kept away from the one end of cigarette props up with distance between the watermark anti-fake pattern still can be 14mm, 13mm, 12mm, 11mm, 10mm, 9mm, 8mm, 7mm, 6mm, 5mm, 4mm, 3mm, 2mm, 1 mm.
In a preferred embodiment, along cigarette length direction, the filter tip is kept away from the distance between the one end of cigarette and the watermark anti-fake pattern is 10mm ~ 15 mm.
Furthermore, in another aspect of the present invention, an anti-counterfeit identification method for the cigarette is further provided, which includes the following steps: and arranging a point light source at one end of the cigarette filter, which is far away from the cigarette, and observing the anti-counterfeiting pattern through the irradiation of the point light source. Preferably, the cigarette is perpendicular to the point light source, and a clearer watermark anti-counterfeiting pattern can be observed.
The following are specific examples. The present invention is intended to be further described in detail to assist those skilled in the art and researchers to further understand the present invention, and the technical conditions and the like do not limit the present invention. Any modification made within the scope of the claims of the present invention is within the scope of the claims of the present invention.
Example 1 paper for cigarette with watermark anti-counterfeiting function
(1) Providing a base paper (with the transmittance of 15%) of the cigarette tipping paper, and transferring and compounding the base paper on one side of the base paper of the cigarette tipping paper to form a polycarbonate transparent resin layer, wherein the polycarbonate transparent resin layer has the weight-average molecular weight of 524, and the transmittance of 85% of the polycarbonate transparent resin layer.
(2) Printing an ink protective layer on the polycarbonate transparent resin layer, wherein the ink of the ink protective layer is the conventional environment-friendly water-based ink for tipping paper known by a person skilled in the art, and the transmissivity of the environment-friendly water-based ink layer is 12.5%.
(3) Printing black watermark ink on the other side of the cigarette tipping base paper by a laser engraving intaglio printing process to form a watermark anti-counterfeiting pattern, wherein the viscosity of the black watermark ink is 23s (British 2 #).
Example 2 paper for cigarette with watermark anti-counterfeiting function
(1) Providing base paper (the transmissivity is 30%) of the cigarette tipping paper, forming a polyurethane transparent resin layer on one side of the base paper of the cigarette tipping paper by a laminating process, wherein the weight-average molecular weight of polyurethane resin in the polyurethane transparent resin layer is 524, and the transmissivity of the polyurethane transparent resin layer is 90%.
(2) Printing an ink protective layer on the polyurethane transparent resin layer, wherein the ink of the ink protective layer is the conventional environment-friendly water-based ink for tipping paper known by a person skilled in the art, and the transmissivity of the environment-friendly water-based ink layer is 73%.
(3) White watermark ink is printed on the other side of the cigarette tipping base paper by a laser engraving intaglio printing process to form a watermark anti-counterfeiting image, and the viscosity of the white watermark ink is 21s (British 2 #).
Example 3 watermark anti-counterfeiting cigarette tipping paper
(1) The base paper for the cigarette tipping paper (the transmissivity is 15%) is provided, a polylactic acid transparent resin layer is formed by hot-melt coating on one side of the base paper for the cigarette tipping paper, the weight average molecular weight of polylactic acid resin in the polylactic acid transparent resin layer is 20,000, and the transmissivity of the polylactic acid transparent resin layer is 80%.
(2) Printing an ink protective layer on the polylactic acid transparent resin layer, wherein the ink of the ink protective layer is the conventional environment-friendly water-based ink for tipping paper known by a person skilled in the art, and the transmissivity of the environment-friendly water-based ink layer is 50%.
(3) Printing black watermark ink on the other side of the cigarette tipping base paper by a laser engraving intaglio printing process to form a watermark anti-counterfeiting pattern, wherein the viscosity of the black watermark ink is 21s (British 2 #).
Example 4 paper for cigarette with watermark anti-counterfeiting function
(1) The cigarette tipping base paper (the transmissivity is 15%) is provided, a polycarbonate transparent resin layer is formed on one side of the cigarette tipping base paper through gravure printing, the weight average molecular weight of the polycarbonate resin in the polycarbonate transparent resin layer is 10,000, and the transmissivity of the polycarbonate transparent resin layer is 85%.
(2) Printing an ink protective layer on the polycarbonate transparent resin layer, wherein the ink of the ink protective layer is the conventional environment-friendly water-based ink for tipping paper known by a person skilled in the art, and the transmissivity of the environment-friendly water-based ink layer is 12.5%.
(3) Printing black watermark ink on the other side of the cigarette tipping base paper by a laser engraving intaglio printing process to form a watermark anti-counterfeiting pattern, wherein the viscosity of the black watermark ink is 23s (British 2 #).
Comparative example 1 paper for anti-counterfeit cigarette with watermark
(1) The cigarette tipping base paper (the transmissivity is 15%) is provided, an epoxy transparent resin layer is formed on one side face of the cigarette tipping base paper through gravure printing, the weight average molecular weight of epoxy resin in the epoxy transparent resin layer is 50,000, and the transmissivity of the epoxy transparent resin layer is 85%.
(2) Printing an ink protective layer on the epoxy transparent resin layer, wherein the ink of the ink protective layer is the conventional environment-friendly water-based ink for tipping paper known by a person skilled in the art, and the transmissivity of the environment-friendly water-based ink layer is 50%.
(3) Printing black watermark ink on the other side of the cigarette tipping base paper by a laser engraving intaglio printing process to form a watermark anti-counterfeiting pattern, wherein the viscosity of the black watermark ink is 23s (British 2 #).
Comparative example 2 paper for anti-fake cigarette with watermark
(1) The base paper for the cigarette tipping paper (the transmissivity is 15%) is provided, a polycarbonate transparent resin layer is formed on one side surface of the base paper for the cigarette tipping paper through gravure printing, the weight average molecular weight of the polycarbonate resin in the polycarbonate transparent resin layer is 30,000, and the transmissivity of the polycarbonate transparent resin layer is 79%.
(2) Printing an ink protective layer on the polycarbonate transparent resin layer, wherein the ink of the ink protective layer is the conventional environment-friendly water-based ink for tipping paper known by a person skilled in the art, and the transmissivity of the environment-friendly water-based ink layer is 12.5%.
(3) Printing black watermark ink on the other side of the cigarette tipping base paper by a laser engraving intaglio printing process to form a watermark anti-counterfeiting pattern, wherein the viscosity of the black watermark ink is 23s (British 2 #).
Comparative example 3 paper for anti-fake cigarette with watermark
(1) The base paper for the cigarette tipping paper (the transmissivity is 15%) is provided, a polycarbonate transparent resin layer is formed on one side surface of the base paper for the cigarette tipping paper through gravure printing, the weight average molecular weight of the polycarbonate resin in the polycarbonate transparent resin layer is 500, and the transmissivity of the polycarbonate transparent resin layer is 79%.
(2) Printing an ink protective layer on the polycarbonate transparent resin layer, wherein the ink of the ink protective layer is the conventional environment-friendly water-based ink for tipping paper known by a person skilled in the art, and the transmissivity of the environment-friendly water-based ink layer is 12%.
(3) Printing black watermark ink on the other side of the cigarette tipping base paper by a laser engraving intaglio printing process to form a watermark anti-counterfeiting pattern, wherein the viscosity of the black watermark ink is 23s (British 2 #).
The list of raw materials and process parameters in the preparation methods of examples 1-6 is given in table 1 below:
TABLE 1
The anti-counterfeiting patterns of the tipping paper for the watermark anti-counterfeiting cigarettes prepared in examples 1 to 4 and comparative examples 1 to 3 are observed under natural light, and the results are shown in table 2:
TABLE 2
| Group of | Effect |
| Example 1 | Obvious black watermark anti-counterfeiting pattern |
| Example 2 | White watermark anti-counterfeiting pattern is obvious |
| Example 3 | Obvious black watermark anti-counterfeiting pattern |
| Example 4 | Black watermark preventionObvious false pattern |
| Comparative example 1 | Black watermark anti-counterfeiting pattern can not be observed |
| Comparative example 2 | Black watermark anti-counterfeiting pattern can not be observed |
| Comparative example 3 | Black watermark anti-counterfeiting pattern can not be observed |
The tipping paper for the watermark anti-counterfeiting cigarette prepared in the example 1 is used for packaging a cigarette filter, and the cigarette is obtained by a process known by a person skilled in the art, wherein the distance d between one end of the filter, which is far away from the cigarette, and the watermark anti-counterfeiting pattern is packaged according to the data shown in the table 2. Each cigarette sample prepared by the mobile phone light irradiation is placed at one end of the cigarette filter far away from the cigarette, as shown in figure 2, the watermark anti-counterfeiting pattern is observed, and the result is shown in table 3.
TABLE 3
| Group of | d | Effect |
| Example 7 | 10mm | Obvious black watermark anti-counterfeiting pattern |
| Example 8 | 11mm | Obvious black watermark anti-counterfeiting pattern |
| Example 9 | 12mm | Obvious black watermark anti-counterfeiting pattern |
| Example 10 | 13mm | Obvious black watermark anti-counterfeiting pattern |
| Example 11 | 14mm | Obvious black watermark anti-counterfeiting pattern |
| Example 12 | 15mm | Obvious black watermark anti-counterfeiting pattern |
| Comparative example 4 | 16mm | Black watermark anti-counterfeiting pattern can not be observed |
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
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. The tipping paper for the watermark anti-counterfeiting cigarette is characterized by comprising an anti-counterfeiting tipping paper base paper layer, a transparent resin layer and a transparent ink layer which are sequentially stacked, wherein the anti-counterfeiting tipping paper base paper layer comprises a cigarette tipping paper base paper and a watermark anti-counterfeiting pattern printed on the cigarette tipping paper base paper, the transparent resin layer is arranged on one side of the anti-counterfeiting tipping paper base paper layer, which is far away from the watermark anti-counterfeiting pattern, the transmissivity of the transparent resin layer is more than or equal to 80%, and the transmissivity of the transparent ink layer is 12.5% -73%.
2. The tipping paper for the watermark-forgery-inhibited cigarette according to claim 1, wherein the resin forming the transparent resin layer is one or more selected from polycarbonate resin, polyurethane resin, and polylactic acid resin.
3. The tipping paper for the watermark-forgery-inhibited cigarette according to claim 2, wherein a weight average molecular weight of the resin forming the transparent resin layer is 524 to 20,000.
4. The tipping paper for the cigarette with the watermark anti-counterfeiting function according to claim 1, wherein the transmissivity of the base paper layer of the tipping paper for the cigarette is 15-30%.
5. The tipping paper for the watermark anti-counterfeiting cigarette according to any one of claims 1 to 4, characterized in that the watermark anti-counterfeiting pattern is a white watermark pattern or a black watermark pattern.
6. The tipping paper for the watermark anti-counterfeiting cigarette according to any one of claims 1 to 4, characterized in that the transmittance of the transparent ink layer is 50-73%.
7. The tipping paper for the cigarette with the watermark anti-counterfeiting function according to any one of claims 1 to 4, wherein the watermark anti-counterfeiting pattern is formed by gravure printing by using a watermark ink.
8. A preparation method of the tipping paper for the watermark anti-counterfeiting cigarette according to any one of claims 1 to 7, characterized by comprising the following steps:
providing base paper of tipping paper for cigarettes, and forming a transparent resin layer on one side surface of the base paper of the tipping paper for cigarettes;
forming a transparent ink layer on the transparent resin layer; and
and printing a watermark anti-counterfeiting pattern on the surface of the other side of the base paper of the tipping paper for the cigarette.
9. The cigarette is characterized by comprising a filter tip and a cigarette, wherein the filter tip comprises a filter rod and tipping paper wrapping the filter rod, the tipping paper is the tipping paper for the watermark anti-counterfeiting cigarette according to any one of claims 1 to 7, and the distance between one end of the filter tip, which is far away from the cigarette, and the watermark anti-counterfeiting pattern is less than or equal to 15mm along the length direction of the cigarette.
10. An anti-counterfeiting identification method for cigarettes according to claim 9, which comprises the following steps:
and arranging a point light source at one end of the cigarette filter, which is far away from the cigarette, and observing the anti-counterfeiting pattern through the irradiation of the point light source.
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| CN202110128056.5A CN112962353A (en) | 2021-01-29 | 2021-01-29 | Cigarette tipping paper and preparation method and application thereof |
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