CN109098042A - Anti-fake thermosensitive paper and preparation method thereof - Google Patents
Anti-fake thermosensitive paper and preparation method thereof Download PDFInfo
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- CN109098042A CN109098042A CN201811052465.6A CN201811052465A CN109098042A CN 109098042 A CN109098042 A CN 109098042A CN 201811052465 A CN201811052465 A CN 201811052465A CN 109098042 A CN109098042 A CN 109098042A
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- coating
- leuco dye
- fake
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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
- D21H27/20—Flexible structures being applied by the user, e.g. wallpaper
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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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
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- Heat Sensitive Colour Forming Recording (AREA)
- Paper (AREA)
Abstract
This application discloses a kind of Anti-fake thermosensitive paper and preparation method thereof, which includes: body paper；Anti-fake back coating, one surface of body paper is set, anti-fake back coating is coated with by anti-counterfeit paint, wherein, anti-counterfeit paint includes leuco dye microcapsules and interval matrix, leuco dye microcapsules include the first leuco dye, and the first leuco dye is the leuco dye for showing blue, red, black or other colors；Another surface of the body paper backwards to back coating is arranged in priming coat；Finishing coat, is arranged in a surface of the priming coat backwards to body paper, and finishing coat is coated with by painting coating, wherein painting coating includes color developing agent.By the above-mentioned means, the temperature-sensitive paper of the application itself has anti-counterfeiting performance, the cost of Anti-fake thermosensitive paper is effectively reduced.
Description
Technical field
This application involves pulp technology for making paper, more particularly to Anti-fake thermosensitive paper and preparation method thereof.
Background technique
Heat-sensitive paper is a kind of heat-sensitive recording material without consumptive materials such as colour band, ink, carbon dusts, directly acts on it by heat
It is upper and generate printed drawings as being generally made of substrate, priming coat and heat susceptible coating containing sensible heat chromogenic chemical substance.
Currently, on the market by printing the post-productions such as anti-counterfei waterprint, anti-forgery ink or anti-fake safety line on heat-sensitive paper
Mode reaches anti-fake purpose.But heat-sensitive paper made from above-mentioned processing method itself and do not have anti-counterfeiting performance, and it is above-mentioned plus
Work mode processing step is more, needs additional production equipment, leads to the higher cost of Anti-fake thermosensitive paper.
Summary of the invention
The application is mainly solving the technical problems that provide Anti-fake thermosensitive paper and preparation method thereof, the temperature-sensitive paper of the application
Itself has anti-counterfeiting performance, and the cost of Anti-fake thermosensitive paper is effectively reduced.
In order to solve the above technical problems, the technical solution that the application uses is: a kind of Anti-fake thermosensitive paper is provided, it is anti-fake
Heat-sensitive paper includes: body paper；A surface of body paper is arranged in anti-fake back coating, and anti-fake back coating is coated with by anti-counterfeit paint,
In, anti-counterfeit paint include leuco dye microcapsules and interval matrix, leuco dye microcapsules include the first leuco dye, first
Leuco dye is the leuco dye for showing blue, red, black or other colors；Priming coat, setting are carried on the back in body paper
To another surface of back coating；Finishing coat, is arranged in a surface of the priming coat backwards to body paper, finishing coat be coated with by painting coating and
At, wherein painting coating includes color developing agent.
In order to solve the above technical problems, another technical solution that the application uses is: providing a kind of Anti-fake thermosensitive paper
Preparation method is used to prepare such as Anti-fake thermosensitive paper above, and preparation method includes: to provide a body paper；On a surface of body paper
It is coated with anti-counterfeit paint, to form anti-fake back coating, wherein anti-counterfeit paint includes leuco dye microcapsules and interval matrix, nothing
Color dye microcapsule includes the first leuco dye, and the first leuco dye is for showing blue, red, black or other face
The leuco dye of color, the coating weight of anti-counterfeit paint are 5~13g/m2；It is coated on another surface of the body paper backwards to anti-fake back coating
Bottom-coating, to form priming coat, the coating weight of bottom-coating is 5~15g/m2；On a surface of the priming coat backwards to body paper
It is coated with painting coating, to form finishing coat, wherein painting coating includes color developing agent, and the coating weight of painting coating is 3~12g/
m2；Drying and processing is passed through to the body paper after formation finishing coat, Anti-fake thermosensitive paper is made.
The beneficial effect of the application is: it is in contrast to the prior art, the Anti-fake thermosensitive paper of the application includes body paper,
In, a surface of body paper is coated with the anti-counterfeit paint comprising leuco dye microcapsules, which includes to meet colour developing
First leuco dye of agent colour developing, and it is followed successively by priming coat and finishing coat on another surface of body paper, the face for forming finishing coat applies
Color developing agent in coating comprising enabling first leuco dye develop the color.By the above-mentioned means, the Anti-fake thermosensitive paper of the application only needs
In use, above-mentioned two surface is contacted and is pressed to paper, so that leuco dye microcapsules rupture flows out colourless dye
Material, the leuco dye are encountering chromogenic reagent to realize antiforge function.Therefore, the temperature-sensitive paper of the application itself has anti-fake
Performance, not needing post-production can be realized antiforge function, and it can be produced on the basis of existing coating apparatus, can
It avoids additional cost of equipment from investing, the cost of Anti-fake thermosensitive paper is effectively reduced.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is the structural schematic diagram of one embodiment of the application Anti-fake thermosensitive paper；
Fig. 2 is the flow diagram of one embodiment of preparation method of the application Anti-fake thermosensitive paper；
Fig. 3 is the flow diagram of another embodiment of preparation method of the application Anti-fake thermosensitive paper；
Fig. 4 is the flow diagram of the another embodiment of preparation method of the application Anti-fake thermosensitive paper；
Fig. 5 is the flow diagram of the preparation method a further embodiment of the application Anti-fake thermosensitive paper.
Fig. 6 is the structural schematic diagram of the anti-counterfeiting performance test method one of the application Anti-fake thermosensitive paper；
Fig. 7 is the structural schematic diagram of the anti-counterfeiting performance test method two of the application Anti-fake thermosensitive paper.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, rather than whole embodiments.Based on this
Embodiment in application, those of ordinary skill in the art are obtained every other under the premise of not making creative labor
Embodiment shall fall in the protection scope of this application.
Fig. 1 is the structural schematic diagram of one embodiment of the application Anti-fake thermosensitive paper.The application provides a kind of Anti-fake thermosensitive paper
100, Anti-fake thermosensitive paper 100 includes being stacked: anti-fake back coating 104, body paper 101, priming coat 102, finishing coat 103.
A surface of body paper 101 is arranged in anti-fake back coating 104, and anti-fake back coating 104 is coated with by anti-counterfeit paint.Its
In, anti-counterfeit paint includes leuco dye microcapsules and is spaced matrix on a small quantity, and leuco dye microcapsules include the first leuco dye,
First leuco dye is the leuco dye for showing blue, red, black or other colors.It is spaced the addition mesh of matrix
Be avoid before carrying out anti-fake test, leuco dye is without capsule because of external force, and such as: extruding, collision in transportational process are made
At rupturing in advance, cause when needing to carry out anti-fake test, because leuco dye microcapsules rupture in advance, loses anti-fake function
Energy.Wherein, interval matrix can be at least one of starch, polyolefin, polymethyl methacrylate, paraffin, particle size range
At 5~10 microns.Another surface of the body paper 101 backwards to back coating is arranged in priming coat 102, and finishing coat 103 is arranged in priming coat
102 are coated with backwards to a surface of body paper 101, finishing coat 103 by painting coating, wherein painting coating includes color developing agent.
Specifically, body paper 101 can be wood-free paper, carbon-free body paper, thermosensitive body paper, plastic paper, synthetic paper can or other
Substrate as coating supporting body.The anti-fake principle of the application Anti-fake thermosensitive paper 100 are as follows: Anti-fake thermosensitive paper 100 includes two tables
Face (the first face, the second face), the first face are the anti-fake back coating 104 comprising leuco dye microcapsules, include colour developing on the second face
Agent.First face of Anti-fake thermosensitive paper 100, the second face is least partially overlapped, under external force, such as friction Anti-fake thermosensitive paper
100, so that the leuco dye in the leuco dye microcapsules in the first face overflows, at this point, the colour developing on leuco dye and the second face
Agent contact, and chromogenic reaction occurs in the second face, to show specific color, to play anti-fake effect.Nothing in the application
Color dyestuff is a kind of special dyestuff, can be 2.0-6.0 microns by partial size (such as 2.0 microns, 3.0 microns, 4.0 microns,
5.0 microns, 6.0 microns) it is microencapsulated, friction can crush microcapsules, make leuco dye outflow connect with color developing agent
Touching occurs chemical reaction and colored graph text is presented, to achieve the purpose that anti-fake.
It is in contrast to the prior art, the Anti-fake thermosensitive paper 100 of the application includes body paper 101, wherein body paper 101
One surface is coated with the anti-counterfeit paint comprising leuco dye microcapsules, which includes meet chromogenic reagent the
One leuco dye, and priming coat 102 and finishing coat 103 are set gradually on another surface of body paper 101, form finishing coat 103
Color developing agent in painting coating comprising enabling first leuco dye develop the color.By the above-mentioned means, the Anti-fake thermosensitive paper 100 of the application
It only needs in use, above-mentioned two surface to be contacted and presses to paper, so that leuco dye microcapsules rupture flows out
Leuco dye, the leuco dye are encountering chromogenic reagent to realize antiforge function.Therefore, the temperature-sensitive paper of the application itself has
There is anti-counterfeiting performance, not needing post-production can be realized antiforge function, and it can be given birth on the basis of existing coating apparatus
It produces, can be avoided additional cost of equipment investment, the cost of Anti-fake thermosensitive paper 100 is effectively reduced.
Wherein, leuco dye microcapsules are the important components of Anti-fake thermosensitive paper 100, are largely controlled anti-
The quality of pseudo- heat-sensitive paper 100.The preparation method of leuco dye microcapsules is usually to utilize natural or synthetic macromolecule filming material
Material coats finely dispersed solid particle, liquid or gas to form minute solid particles.Leuco dye microcapsules also include wall
Material, i.e. coating film outside leuco dye microcapsules are known as wall material.The wall material type of leuco dye microcapsules can for Ah
Draw primary glue, gelatin-gum arabic, chitosan, polyurethane, polystyrene, Lauxite, carbamide resin, melamine resin, melamine
Amine-formaldehyde resin, polyamide, diisocyanate, polyisocyanates, polyisocyanate, polycarbonate, polymethyl methacrylate
At least one of.
Wherein, in one embodiment, painting coating includes at least leuco dye dispersion liquid, and leuco dye dispersion liquid includes
Second leuco dye and polyvinyl alcohol.As mass fraction, the quality of the second leuco dye accounts for leuco dye dispersion liquid dry weight matter
70%~90% (such as 70%, 80%, 90%) of amount, the quality of polyvinyl alcohol account for leuco dye dispersion liquid dry weight
10%~30% (such as 10%, 20%, 30%).Second leuco dye be for show blue, red, black or other
The leuco dye of color.
It should be noted that the dry weight of the leuco dye dispersion liquid in present embodiment be not added aqueous solvent or
When oil-based solvent, the quality of leuco dye dispersion liquid.
Specifically, heat directly acts on the second face when being printed using thermal printer or thermal fax machines.This
When, the second leuco dye and color developing agent on the second face occur chemical reaction and generate color, to show writings and image.In order to
The Antiforge realizing the printing picture and text shown at the second face of distinguishing and showing at the first face, the second leuco dye is for showing
Color can be different from the first leuco dye for the color that shows.
Wherein, in the first leuco dye and the second leuco dye, for showing that the leuco dye of blue is 10- benzoyl
Bis- (dimethylamino) phenthazine of base -3,7-, 7- [4- (lignocaine) -2- (hexyloxy) phenyl] -7- (1- Ethyl-2-Methyl -
1H- indol-3-yl) furans simultaneously [3,4-B] pyridine -5 (7H) -one, 3- (4- dimethylamino phenyl) -3- (4- methylethylamino benzene
Base) -6- dimethylamino phthalide, at least one of bis- (4- dimethylaminophenyl) phthalides of 6- dimethylamino -3,3-.For showing
The leuco dye for showing black is 2- phenylamino -3- methyl -6- lignocaine fluorane, 2- phenylamino -3- methyl -6- dibutylamino
Fluorane, 3-N- isopentyl-N- ethylamino -6- methyl -7- anilinfluorane, 6'- [3- ethoxycarbonyl propyl) ethylamino] -3'- first
Base -2'- (phenyl amino)-spiral shell [isobenzofuran -1- (3H), 9'- [9H] xanthenes] -3- ketone, the bis- [2- [4- (dimethylaminos of 3,3-
At least one of base) phenyl] -2- (4- methoxyphenyl) vinyl] -4,5,6,7- Rabcide.For showing red
Leuco dye be that bis- (N- is pungent by the chloro- 6'- of 2'- (lignocaine) fluorane, 3- diethylamino -6- methyl -7- chlorine fluorane, 3,3-
Base -2 methyl indole) O-phthalic lactone, 9- [ethyl (3- methyl butyl) amino]-spiral shell [12H- benzo [a] xanthene -12,
1'(3'H)-isobenzofuran] -3'- ketone, 6'- [ethyl (4- aminomethyl phenyl) amino] -2'- methyl-spiral shell [isobenzofuran -1
At least one of (3H), 9'- (9H) xanthenes] -3- ketone.
Wherein, in one embodiment, priming coat 102 is coated with by bottom-coating.Wherein, bottom-coating includes first
Filler and the first adhesive, as mass fraction, the quality of the first filler account for 65%~85% (example of bottom-coating dry weight
Such as 65%, 75%, 85%), the first adhesive account for bottom-coating dry weight 15%~35% (such as 15%, 25%,
35%).
It should be noted that the dry weight of the bottom-coating in present embodiment is aqueous solvent not to be added or oiliness is molten
When agent, the quality of bottom-coating.
First filler can for precipitated calcium carbonate, powdered whiting, calcined kaolin, water-washed kaoline, aluminium hydroxide, in
At least one of empty plastic pigments, silica, to avoid the excessively coarse influence thermal printing quality of paper, the first filler packet
The first fine particle size filler is included, the first fine particle size filler accounts for the 80%~100% of the first filler dry weight, the first tiny grain
The partial size of diameter filler is less than or equal to 2 microns.First adhesive can be biological latex, acrylic latex, styrene-butadiene latex, carboxyl fourth
At least one of benzene latex, polyvinyl alcohol, wherein biological latex can be starch, and Starches can be tapioca, jade
Rice starch, potato starch etc. are coated with biology latex made of grade starch；The starch of biological latex can be raw starch, acidification
Starch, esterification starch.
Wherein, in one embodiment, painting coating also includes the second filler, the second adhesive, chromogenic reagent solution, increases sense
Agent solution and lubricant, as mass fraction, the quality of the second filler account for painting coating dry weight 30%~60% (such as
30%, 40%, 50%, 60%), the quality of the second adhesive account for painting coating dry weight 10%~25% (such as 10%,
15%, 20%, 25%), the quality of chromogenic reagent solution account for painting coating dry weight 20%~45% (such as 25%, 30%,
35%, 45%), the quality of leuco dye dispersion liquid account for painting coating dry weight 10%~35% (such as 10%, 15%,
25%, 35%), the quality of sensitizer solution account for painting coating dry weight 0%~30% (such as 0%, 15%, 25%,
30%) 0%~15% (such as 0%, 5%, 10%, 15%) of painting coating dry weight is accounted for the quality of lubricant.
It should be noted that the dry weight of the painting coating in present embodiment is aqueous solvent not to be added or oiliness is molten
When agent, the quality of painting coating.
Chromogenic reagent solution includes color developing agent and polyvinyl alcohol, and wherein the quality of color developing agent accounts for chromogenic reagent solution dry weight
70%~90% (such as 70%, 80%, 90%), the quality of polyvinyl alcohol accounts for the 10%~30% of chromogenic reagent solution dry weight
(such as 10%, 15%, 25%, 30%).Sensitizer solution includes sensitizer and polyvinyl alcohol, and wherein the quality of sensitizer accounts for increasing
It is dry that the quality of 70%~90% (such as 70%, 80%, 90%), polyvinyl alcohol for feeling agent solution dry weight accounts for sensitizer solution
10%~30% (such as 10%, 15%, 25%, 30%) of heavy amount.
It should be noted that the dry weight of the chromogenic reagent solution in present embodiment is that aqueous solvent or oiliness are not added
When solvent, the quality of chromogenic reagent solution.The dry weight of sensitizer solution is when aqueous solvent or oil-based solvent not being added, to increase sense
The quality of agent solution.
Second filler can for precipitated calcium carbonate, powdered whiting, calcined kaolin, water-washed kaoline, aluminium hydroxide, in
At least one of empty plastic pigments, silica, to avoid the excessively coarse influence thermal printing quality of paper, the second filler packet
The second fine particle size filler is included, the second fine particle size filler accounts for the 80%~100% of the second filler dry weight, the second tiny grain
The partial size of diameter filler is less than or equal to 2 microns.Second adhesive can are as follows: biological latex, acrylic latex, styrene-butadiene latex, carboxyl fourth
At least one of benzene latex, polyvinyl alcohol, wherein biological latex can be starch, and Starches can be tapioca, jade
Rice starch, potato starch etc. are coated with biology latex made of grade starch；The starch of biological latex can be raw starch, acidification
Starch, esterification starch.The lubricant of finishing coat 103 can be calcium stearate, zinc stearate, aluminum stearate, in paraffin at least
One kind, wherein the lubricant partial size is 2~6 microns.The color developing agent of finishing coat 103 can be 2,2- bis- (4- hydroxy phenyl) third
Alkane, 2,4 dihydroxydiphenylsulisomers, 4,4 '-dihydroxydiphenylsulisomers, 3,3'- diallyl -4,4'- sulphonyl phenol, 4- [[4- (2- alkene
Propoxyl group) phenyl] sulfonyl] phenol, 4- hydroxyl -4' isopropoxy diphenyl sulphone (DPS), bis- (2- chloroethyl) ether -4,4'- dihydroxy two
This base sulfone copolymer, 3,3'- diallyl -4,4'- sulphonyl phenol, 3,3 '-diallyls -4,4 '-dihydroxydiphenylsulisomer, N-
At least one of (p-toluenesulfonyl)-N'-3- (tolysulfonyl oxyphenyl) urea.Optionally, color developing agent can be single
One compound.The sensitizer of finishing coat 103 can be 1,2- biphenoxyl ethane, bis- beta naphthal benzylic ether, 1,2- toluene oxygen
Base ethane, diphenyl sulphone (DPS), oxalic acid two to benzyl chloride ester, to methylbenzyl alcohol oxalate diester, ethanedioic acid dibenzyl ester, vinyl stearic bicine diester
Amine, stearic amide, stearanilide, vinyl bis-stearamides, acetoacetyl ortho-aminotoluene, in tetramethyl diphenyl ethane
It is at least one.
It is the flow diagram of one embodiment of preparation method of the application Anti-fake thermosensitive paper 100 with Fig. 2 refering to fig. 1, prevents
The preparation method of pseudo- heat-sensitive paper 100 is used to prepare Anti-fake thermosensitive paper 100 as previously described.The preparation method includes:
Step S21: a body paper 101 is provided.
Step S22: being coated with anti-counterfeit paint on a surface of body paper 101, to form anti-fake back coating 104.
Anti-counterfeit paint includes leuco dye microcapsules, and leuco dye microcapsules include the first leuco dye, the first colourless dye
Material is, for showing the leuco dye of blue, red, black or other colors, the coating weight of anti-counterfeit paint is 5~13g/
m2.It is preferred that coating weight is 6~10g/m2, such as 6g/m2、8g/m2、10g/m2。
Step S23: it is coated with bottom-coating on body paper 101 backwards another surface of anti-fake back coating 104, to form primary coat
Layer 102.
The coating weight of bottom-coating is 5~15g/m2.It is preferred that coating weight is 6~10g/m2, such as 6g/m2、8g/m2、10g/
m2。
Step S24: it is coated with painting coating on priming coat 102 backwards a surface of body paper 101, to form finishing coat 103.
Painting coating includes color developing agent, and the coating weight of painting coating is 3~12g/m2.It is preferred that coating weight is 5~9g/m2, example
Such as 5g/m2、7g/m2、9g/m2。
Step S25: drying and processing is passed through to the body paper 101 after formation finishing coat 103, Anti-fake thermosensitive paper 100 is made.
It is in contrast to the prior art, Anti-fake thermosensitive paper 100 prepared by the application includes body paper 101, wherein body paper
101 surface is coated with the anti-counterfeit paint comprising leuco dye microcapsules, which includes to meet color developing agent to show
First leuco dye of color, and it is followed successively by priming coat 102 and finishing coat 103 on another surface of body paper 101, form finishing coat
Color developing agent in 103 painting coating comprising enabling first leuco dye develop the color.By the above-mentioned means, the anti-counterfeiting heat-sensitive of the application
100, paper need in use, above-mentioned two surface to be contacted and presses to paper, so that leuco dye microcapsules rupture
Leuco dye is flowed out, which is encountering chromogenic reagent to realize antiforge function.Therefore, the heat-sensitive paper anticipatory remark of the application
Body has anti-counterfeiting performance, and not needing post-production can be realized antiforge function, and its can on the basis of existing coating apparatus into
Row production can be avoided additional cost of equipment investment, the cost of Anti-fake thermosensitive paper 100 is effectively reduced.
Wherein, in one embodiment, before step S23, preparation method further includes preparing bottom-coating, comprising: is pressed
First preset ratio weighs the first filler, the first adhesive and water, is uniformly mixed and obtains concentration with configuration as 22%~40% (example
Such as 22%, 30%, 35%, 40%) bottom-coating.
Specifically, bottom-coating contains the first filler, the first adhesive, the quality of the first filler accounts for bottom-coating dry weight matter
65%~85% (such as 65%, 75%, 85%) of amount, the first adhesive accounts for the 15%~35% of bottom-coating dry weight
(such as 15%, 25%, 35%).Stir the first filler, the first adhesive and water in high-speed uniform, be prepared into concentration be 22%~
40% bottom-coating.
Above-mentioned bottom-coating is spread evenly across on the second face of body paper with coating machine, coating weight is 5~15g/m2, excellent
Selecting coating weight is 8~12g/m2, such as 8g/m2、10g/m2、12g/m2.Above-mentioned coating machine can be rod coater, scraper type
Coating machine, air knife coater, single-layer or multi-layer fall curtain coater, single-layer or multi-layer sliding curtain type coating machine (or slope streaming
Curtain coater) or other coating apparatus that can be used for coating coating.
Wherein, in one embodiment, before step S24, preparation method further includes preparing painting coating, comprising: is pressed
Second preset ratio weighs the second filler, the second adhesive, chromogenic reagent solution, sensitizer solution, leuco dye dispersion liquid, lubrication
Agent and water are uniformly mixed to configure and obtain the painting coating that concentration is 25%~45% (such as 25%, 30%, 35%, 45%).
Specifically, the finishing coat contains the second filler, the second adhesive, chromogenic reagent solution, sensitizer solution, colourless dye
Expect dispersion liquid, lubricant and water.Wherein, the quality of the second filler account for painting coating dry weight 30%~60% (such as
30%, 40%, 50%, 60%), the quality of the second adhesive account for painting coating dry weight 10%~25% (such as 10%,
15%, 20%, 25%), the quality of chromogenic reagent solution account for painting coating dry weight 20%~45% (such as 25%, 30%,
35%, 45%), the quality of leuco dye dispersion liquid account for painting coating dry weight 10%~35% (such as 10%, 15%,
25%, 35%), the quality of sensitizer solution account for painting coating dry weight 0%~30% (such as 0%, 15%, 25%,
30%) 0%~15% (such as 0%, 5%, 10%, 15%) of painting coating dry weight is accounted for the quality of lubricant.In height
Fast uniform stirring said components and water are prepared into painting coating of the concentration 25%~45%.
Above-mentioned painting coating is coated on priming coat with coating machine, coating weight is 3~12g/m2, such as 3g/m2、7g/
m2、13g/m2, preferably coating weight is 5~9g/m2, such as 5g/m2、7g/m2、9g/m2.Above-mentioned coating machine can for rod coater,
Scraper coating machine, air knife coater, single-layer or multi-layer fall curtain coater, single-layer or multi-layer sliding curtain type coating machine (or
Slope streaming curtain coater) or other coating apparatus that can be used for coating coating.
It is the flow diagram of another embodiment of preparation method of the application Anti-fake thermosensitive paper refering to Fig. 3, Fig. 3.Preparation
Chromogenic reagent solution the following steps are included:
Step S31: weighing color developing agent, polyethylene alcohol and water by third preset ratio, is uniformly mixed and obtains concentration with configuration
For the thick solution of color developing agent of 35%~50% (such as 35%, 40%, 45%, 50%).
Step S32: using controlling wet-type finishing machine grind the thick solution of color developing agent, be made partial size be 0.3~1.8 micron (such as
0.3 micron, 0.8 micron, 1.3 microns, 1.8 microns) chromogenic reagent solution.
It is the flow diagram of the another embodiment of preparation method of the application Anti-fake thermosensitive paper refering to Fig. 4, Fig. 4.Preparation
Sensitizer solution the following steps are included:
Step S41: weighing sensitizer, polyethylene alcohol and water by the 4th preset ratio, is uniformly mixed and obtains concentration with configuration
For the thick solution of sensitizer of 35%~50% (such as 35%, 40%, 45%, 50%).
Step S42: using controlling wet-type finishing machine grind the thick solution of sensitizer, be made partial size be 0.5~2.0 micron (such as
0.5 micron, 1.0 microns, 1.5 microns, 2.0 microns) sensitizer solution.
It is the flow diagram of the preparation method a further embodiment of the application Anti-fake thermosensitive paper refering to Fig. 5, Fig. 5.Preparation
Leuco dye dispersion liquid the following steps are included:
Step S51: weighing the second leuco dye, polyethylene alcohol and water by the 5th preset ratio, is uniformly mixed to be arranged to
It is the leuco dye coarse dispersion of 35%~50% (such as 35%, 40%, 45%, 50%) to concentration.
Step S52: grinding leuco dye coarse dispersion using controlling wet-type finishing machine, partial size is made as 0.5~1.0 micron
The leuco dye dispersion liquid of (such as 0.5 micron, 0.7 micron, 0.9 micron, 1.0 microns).
Anti-fake thermosensitive paper of the invention is described further below by specific embodiment.
Embodiment 1
Prepare bottom-coating: as mass fraction, precipitated calcium carbonate, calcined kaolin 1:2 mixing and are forged precipitated calcium carbonate
Burn 84% that kaolinic additive amount is bottom-coating dry weight.The additive amount of polyvinyl alcohol is bottom-coating dry weight
16%.A certain amount of water is added, high-speed stirred is uniformly configured to the bottom-coating that concentration is 38%.With coating machine by above-mentioned bottom
Apply the second face that coating is coated on body paper, coating weight 11g/m2。
Prepare chromogenic reagent solution: as mass fraction, the additive amount of 2,4 dihydroxydiphenylsulisomers is chromogenic reagent solution dry weight matter
Amount 72%, polyvinyl alcohol addition be chromogenic reagent solution dry weight 28%.A certain amount of water is added, high-speed stirred is uniform
It is configured to the thick solution of color developing agent that concentration is 37%, and is ground to the developer solution that partial size is 0.8 micron in controlling wet-type finishing machine
Liquid.
Prepare sensitizer solution: stearic amide additive amount is the 86% of sensitizer solution dry weight, polyvinyl alcohol adds
Dosage is the 14% of sensitizer solution dry weight.A certain amount of water is added, it is 41% that high-speed stirred, which is uniformly configured to concentration,
The thick solution of sensitizer is ground to 1.2 microns of sensitizer solution in controlling wet-type finishing machine.
Prepare leuco dye dispersion liquid: as mass fraction, 2- phenylamino -6- dibutylamino -3- methyl-fluorane additive amount
For leuco dye dispersion liquid dry weight 86%, 14% that polyvinyl alcohol addition is leuco dye dispersion liquid dry weight.
A certain amount of water is added, high-speed stirred is uniformly configured to the leuco dye solution that concentration is 41%, grinds in controlling wet-type finishing machine
To 1.2 microns of leuco dye solution.
Prepare painting coating: as mass fraction, water-washed kaoline is mixed with aluminium hydroxide 1:1, water-washed kaoline and hydrogen
The additive amount of aluminium oxide is the 42% of painting coating dry weight.Carboxylic styrene butadiene latex additive amount is painting coating dry weight
7%.Above-mentioned chromogenic reagent solution additive amount is the 30% of painting coating dry weight.Above-mentioned sensitizer solution additive amount is that face applies
Expect the 5% of dry weight.Above-mentioned leuco dye solution additive amount is the 14% of painting coating dry weight.Calcium stearate additive amount
It is the 2% of painting coating dry weight.A certain amount of water is added, high-speed stirred is uniformly configured to the face that concentration is 30% and applies
Material.Above-mentioned painting coating is coated on priming coat with coating machine, coating weight 8.5g/m2。
Anti-counterfeit paint: the nothing containing 3- (4- dimethylamino phenyl) -3- (4- methylethylamino phenyl) -6- dimethylamino phthalide
Color dye microcapsule, partial size are 5 microns, above-mentioned anti-counterfeit paint are coated on to the first face of body paper with coating machine, coating weight is
9g/m2。
Embodiment 2
Prepare bottom-coating: as mass fraction, precipitated calcium carbonate, calcined kaolin, plastic pigments 1:1:1 mixing, gently
Matter calcium carbonate, calcined kaolin, plastic pigments additive amount be bottom-coating dry weight 75%.Butylbenzene acid latex and poly- second
The additive amount of enol 2:1 mixing, butylbenzene acid latex and polyvinyl alcohol is the 25% of bottom-coating dry weight.It is added a certain amount of
Water, high-speed stirred are uniformly configured to the bottom-coating that concentration is 28%.Above-mentioned bottom-coating is coated on body paper with coating machine
The second face, coating weight 9.8g/m2。
Prepare chromogenic reagent solution: as mass fraction, 3,3 '-diallyl -4, the additive amount of 4 '-dihydroxydiphenylsulisomers is
Chromogenic reagent solution dry weight 85%, polyvinyl alcohol addition be chromogenic reagent solution dry weight 15%.It is added a certain amount of
Water, high-speed stirred is uniformly configured to the thick solution of color developing agent that concentration is 43%, and is ground to partial size in controlling wet-type finishing machine and is
0.8 micron of chromogenic reagent solution.
Prepare leuco dye dispersion liquid: as mass fraction, 3-N- isopentyl-N- ethylamino -6- methyl -7- phenylamino is glimmering
Alkane additive amount is the 78% of leuco dye dispersion liquid dry weight, polyvinyl alcohol addition is leuco dye dispersion liquid dry weight
22%.A certain amount of water is added, high-speed stirred is uniformly configured to the leuco dye solution that concentration is 48%, in controlling wet-type finishing machine
In be ground to 0.8 micron of leuco dye solution.
Prepare painting coating: as mass fraction, precipitated calcium carbonate is mixed with silica 4:1, precipitated calcium carbonate and two
The additive amount of silica is the 50% of painting coating dry weight.Acrylic latex additive amount is painting coating dry weight
6%.Above-mentioned chromogenic reagent solution additive amount is the 22% of painting coating dry weight.Above-mentioned sensitizer solution additive amount is that face applies
Expect the 10% of dry weight.Above-mentioned leuco dye solution additive amount is the 14% of painting coating dry weight.As mass fraction,
Paraffin is mixed with aluminum stearate 1:2, and paraffin and aluminum stearate additive amount are the 12% of painting coating dry weight.It is added a certain amount of
Water, high-speed stirred be uniformly configured to concentration be 45% painting coating.Above-mentioned painting coating is coated on bottom with coating machine
On coating, coating weight 8.2g/m2。
Anti-counterfeit paint: the leuco dye microcapsules containing bis- (4- dimethylaminophenyl) phthalides of 6- dimethylamino -3,3-,
Partial size is 5 microns, and above-mentioned anti-counterfeit paint is coated on to the first face of body paper, coating weight 10.0g/m with coating machine2。
Embodiment 3
Prepare bottom-coating: as mass fraction, powdered whiting, calcined kaolin, plastic pigments 2:1:1 mixing, weight
Matter calcium carbonate, calcined kaolin, plastic pigments additive amount be bottom-coating dry weight 67%.The addition of acrylic latex
Amount is the 23% of bottom-coating dry weight.A certain amount of water is added, high-speed stirred is uniformly configured to the primary coat that concentration is 23%
Coating.Above-mentioned bottom-coating is coated on to the second face of body paper, coating weight 7.8g/m with coating machine2。
Prepare chromogenic reagent solution: as mass fraction, 3,3 '-diallyl -4, the additive amount of 4 '-dihydroxydiphenylsulisomers is
Chromogenic reagent solution dry weight 85%, polyvinyl alcohol addition be chromogenic reagent solution dry weight 15%.It is added a certain amount of
Water, high-speed stirred is uniformly configured to the thick solution of color developing agent that concentration is 43%, and is ground to partial size in controlling wet-type finishing machine and is
1.2 microns of chromogenic reagent solution.
Prepare sensitizer solution: as mass fraction, beta naphthal benzylic ether additive amount is sensitizer solution dry weight
72%, polyvinyl alcohol addition is the 28% of sensitizer solution dry weight.A certain amount of water is added, high-speed stirred uniformly configures
The thick solution of sensitizer for being 36% at concentration, is ground to 0.7 micron of sensitizer solution in controlling wet-type finishing machine.
Prepare leuco dye dispersion liquid: as mass fraction, 3-N- isopentyl-N- ethylamino -6- methyl -7- phenylamino is glimmering
Alkane additive amount is the 78% of leuco dye dispersion liquid dry weight, polyvinyl alcohol addition is leuco dye dispersion liquid dry weight
22%.A certain amount of water is added, high-speed stirred is uniformly configured to the leuco dye solution that concentration is 48%, in controlling wet-type finishing machine
In be ground to 1.0 microns of leuco dye solution.
Prepare painting coating: as mass fraction, the additive amount of precipitated calcium carbonate is the 43% of painting coating dry weight.
Acrylic latex additive amount is the 8% of painting coating dry weight.Above-mentioned chromogenic reagent solution additive amount is painting coating dry weight matter
The 22% of amount.Above-mentioned sensitizer solution additive amount is the 10% of painting coating dry weight.Above-mentioned leuco dye solution additive amount
It is the 12% of painting coating dry weight.As mass fraction, calcium stearate is mixed with aluminum stearate 1:2, paraffin and stearic acid
Aluminium additive amount is the 5% of painting coating dry weight.A certain amount of water is added, it is 43% that high-speed stirred, which is uniformly configured to concentration,
Painting coating.Above-mentioned painting coating is coated on priming coat with coating machine, coating weight 7.6g/m2。
Anti-counterfeit paint: the leuco dye microcapsules containing 2'- chloro- 6'- (lignocaine) fluorane, partial size are 4.5 microns, with
Above-mentioned anti-counterfeit paint is coated on the first face of body paper, coating weight 8.5g/m by coating machine2。
Embodiment 4
Prepare bottom-coating: as mass fraction, the additive amount of calcined kaolin is the 83% of bottom-coating dry weight.
The additive amount of biological latex is the 17% of bottom-coating dry weight.A certain amount of water is added, high-speed stirred is uniformly configured to dense
The bottom-coating that degree is 40%.Above-mentioned bottom-coating is coated on to the second face of body paper, coating weight 9.0g/ with coating machine
m2。
Prepare chromogenic reagent solution: as mass fraction, the additive amount of 3,3'- diallyl -4,4'- sulphonyl phenol is colour developing
Agent solution dry weight 80%, polyvinyl alcohol addition be chromogenic reagent solution dry weight 20%.A certain amount of water is added,
High-speed stirred is uniformly configured to the thick solution of color developing agent that concentration is 40%, and being ground to partial size in controlling wet-type finishing machine is 1.0 micro-
The chromogenic reagent solution of rice.
Prepare sensitizer solution: as mass fraction, 1,2- bis- toloxyl ethane additive amount is dry for sensitizer solution
Heavy amount 75%, polyvinyl alcohol addition be sensitizer solution dry weight 25%.A certain amount of water, high-speed stirred is added
It is uniformly configured to the thick solution of sensitizer that concentration is 38%, 1.2 microns of sensitizer solution is ground in controlling wet-type finishing machine.
Prepare leuco dye dispersion liquid: as mass fraction, 3- (4- dimethylamino phenyl) -3- (4- methylethylamino benzene
Base) -6- dimethylamino phthalide additive amount is the 78% of leuco dye dispersion liquid dry weight, polyvinyl alcohol addition is colourless dye
Expect the 22% of dispersion liquid dry weight.A certain amount of water is added, high-speed stirred is uniformly configured to the leuco dye that concentration is 46%
Solution is ground to 1.5 microns of leuco dye solution in controlling wet-type finishing machine.
Prepare painting coating: as mass fraction, the additive amount that precipitated calcium carbonate is mixed with aluminium hydroxide 1:1 is that face applies
Expect the 43% of dry weight.Acrylic latex additive amount is the 8% of painting coating dry weight.Above-mentioned chromogenic reagent solution additive amount
It is the 22% of painting coating dry weight.Above-mentioned sensitizer solution additive amount is the 12% of painting coating dry weight.Above-mentioned nothing
Color dye solution additive amount is the 15% of painting coating dry weight.Paraffin additive amount is the 7% of painting coating dry weight.Add
Enter a certain amount of water, high-speed stirred is uniformly configured to the painting coating that concentration is 28%.With coating machine by above-mentioned painting coating
It is coated on priming coat, coating weight 7.6g/m2。
Anti-counterfeit paint: the leuco dye microcapsules containing 2- phenylamino -3- methyl -6- lignocaine fluorane, partial size 3.8
Above-mentioned anti-counterfeit paint, the first face of body paper, coating weight 7.2g/m are coated on coating machine by micron2。
Embodiment 5
Prepare bottom-coating: as mass fraction, powdered whiting is mixed with calcined kaolin 1:2, powdered whiting with
The additive amount of calcined kaolin is the 80% of bottom-coating dry weight.The additive amount of biological latex is bottom-coating dry weight
20%.A certain amount of water is added, high-speed stirred is uniformly configured to the bottom-coating that concentration is 36%.It will be above-mentioned with coating machine
Bottom-coating is coated on the second face of body paper, coating weight 10.0g/m2。
Prepare chromogenic reagent solution: as mass fraction, the additive amount of 2,2- bis- (4- hydroxy phenyl) propane is developer solution
Liquid dry weight 85%, polyvinyl alcohol addition be chromogenic reagent solution dry weight 15%.A certain amount of water is added, high speed
It stirs evenly and is configured to the thick solution of color developing agent that concentration is 45%, and being ground to partial size in controlling wet-type finishing machine is 1.2 microns
Chromogenic reagent solution.
Prepare sensitizer solution: as mass fraction, beta naphthal benzylic ether additive amount is sensitizer solution dry weight
70%, polyvinyl alcohol addition is the 30% of sensitizer solution dry weight.A certain amount of water is added, high-speed stirred uniformly configures
The thick solution of sensitizer for being 35% at concentration, is ground to 0.8 micron of sensitizer solution in controlling wet-type finishing machine.
Prepare leuco dye dispersion liquid: as mass fraction, 3- diethylamino -6- methyl -7- chlorine fluorane additive amount is
Leuco dye dispersion liquid dry weight 86%, polyvinyl alcohol addition be leuco dye dispersion liquid dry weight 14%.Add
Enter a certain amount of water, high-speed stirred is uniformly configured to the leuco dye solution that concentration is 42%, is ground in controlling wet-type finishing machine
0.7 micron of leuco dye solution.
Prepare painting coating: as mass fraction, the additive amount that precipitated calcium carbonate is mixed with aluminium hydroxide 1:1 is that face applies
Expect the 37% of dry weight.Biological latex is mixed with acrylic latex 2:1, and biological latex and acrylic latex additive amount are face painting
The 8% of dry coating weight quality.Above-mentioned chromogenic reagent solution additive amount is the 25% of painting coating dry weight.Above-mentioned sensitizer solution
Additive amount is the 15% of painting coating dry weight.Above-mentioned leuco dye solution additive amount is painting coating dry weight
14%.Paraffin additive amount is the 7% of painting coating dry weight.A certain amount of water is added, high-speed stirred is uniformly configured to concentration
For 28% painting coating.Above-mentioned painting coating is coated on priming coat with coating machine, coating weight 8.5g/m2。
Anti-counterfeit paint: the leuco dye microcapsules containing 3-N- isopentyl-N- ethylamino -6- methyl -7- anilinfluorane,
Partial size is 3.0 microns, and above-mentioned anti-counterfeit paint is coated on to the first face of body paper, coating weight 9.0g/m with coating machine2。
Comparative example 1
Prepare bottom-coating: as mass fraction, the additive amount of water-washed kaoline is the 78% of bottom-coating dry weight.
The additive amount of styrene-butadiene latex is the 22% of bottom-coating dry weight.A certain amount of water is added, high-speed stirred is uniformly configured to dense
The bottom-coating that degree is 36%.Above-mentioned bottom-coating is coated on to the second face of body paper, coating weight 10.0g/ with coating machine
m2。
Prepare chromogenic reagent solution: as mass fraction, the additive amount of 2,2- bis- (4- hydroxy phenyl) propane is developer solution
Liquid dry weight 85%, polyvinyl alcohol addition be chromogenic reagent solution dry weight 15%.A certain amount of water is added, high speed
It stirs evenly and is configured to the thick solution of color developing agent that concentration is 45%, and being ground to partial size in controlling wet-type finishing machine is 1.2 microns
Chromogenic reagent solution.
Prepare sensitizer solution: as mass fraction, beta naphthal benzylic ether additive amount is sensitizer solution dry weight
72%, polyvinyl alcohol addition is the 28% of sensitizer solution dry weight.A certain amount of water is added, high-speed stirred uniformly configures
The thick solution of sensitizer for being 34% at concentration, is ground to 0.7 micron of sensitizer solution in controlling wet-type finishing machine.
Prepare leuco dye dispersion liquid: as mass fraction, 2- phenylamino -3- methyl -6- lignocaine fluorane additive amount
For leuco dye dispersion liquid dry weight 88%, 12% that polyvinyl alcohol addition is leuco dye dispersion liquid dry weight.
A certain amount of water is added, high-speed stirred is uniformly configured to the leuco dye solution that concentration is 43%, grinds in controlling wet-type finishing machine
To 1.0 microns of leuco dye solution.
Prepare painting coating: as mass fraction, precipitated calcium carbonate is the 37% of painting coating dry weight.Biological latex
Additive amount is the 8% of painting coating dry weight.Above-mentioned chromogenic reagent solution additive amount is the 23% of painting coating dry weight.On
State 14% that sensitizer solution additive amount is painting coating dry weight.Above-mentioned leuco dye solution additive amount is dry for painting coating
The 14% of heavy amount.Paraffin additive amount is the 6% of painting coating dry weight.A certain amount of water is added, high-speed stirred is uniformly matched
It is set to the painting coating that concentration is 28%.Above-mentioned painting coating is coated on priming coat with coating machine, coating weight 8.0g/
m2。
Comparative example 2
Prepare bottom-coating: as mass fraction, precipitated calcium carbonate is mixed with hollow plastic pigment 2:1, precipitated calcium carbonate
Additive amount with hollow plastic pigment is the 80% of bottom-coating dry weight.The additive amount of styrene-butadiene latex is bottom-coating dry weight
The 20% of quality.A certain amount of water is added, high-speed stirred is uniformly configured to the bottom-coating that concentration is 38%.It will be upper with coating machine
The bottom-coating stated is coated on the second face of body paper, coating weight 8.5g/m2。
Prepare chromogenic reagent solution: as mass fraction, the additive amount of 3,3'- diallyl -4,4'- sulphonyl phenol is colour developing
Agent solution dry weight 80%, polyvinyl alcohol addition be chromogenic reagent solution dry weight 20%.A certain amount of water is added,
High-speed stirred is uniformly configured to the thick solution of color developing agent that concentration is 40%, and being ground to partial size in controlling wet-type finishing machine is 1.0 micro-
The chromogenic reagent solution of rice.
Prepare sensitizer solution: as mass fraction, 1,2- bis- toloxyl ethane additive amount is dry for sensitizer solution
Heavy amount 75%, polyvinyl alcohol addition be sensitizer solution dry weight 25%.A certain amount of water, high-speed stirred is added
It is uniformly configured to the thick solution of sensitizer that concentration is 38%, 1.2 microns of sensitizer solution is ground in controlling wet-type finishing machine.
Prepare leuco dye dispersion liquid: as mass fraction, bis- (4- dimethylaminophenyl) benzene of 6- dimethylamino -3,3-
Phthalein additive amount is the 72% of leuco dye dispersion liquid dry weight, polyvinyl alcohol addition is leuco dye dispersion liquid dry weight
28%.A certain amount of water is added, high-speed stirred is uniformly configured to the leuco dye solution that concentration is 36%, in controlling wet-type finishing machine
In be ground to 1.3 microns of leuco dye solution.
Prepare painting coating: as mass fraction, aluminium hydroxide is the 36% of painting coating dry weight.Carboxy styrene-butadiene rubber
Newborn additive amount is the 9% of painting coating dry weight.Above-mentioned chromogenic reagent solution additive amount is the 24% of painting coating dry weight.
Above-mentioned sensitizer solution additive amount is the 12% of painting coating dry weight.Above-mentioned leuco dye solution additive amount is painting coating
The 14% of dry weight.Paraffin additive amount is the 5% of painting coating dry weight.A certain amount of water is added, high-speed stirred is uniform
It is configured to the painting coating that concentration is 28%.Above-mentioned painting coating is coated on priming coat with coating machine, coating weight is
7.5g/m2。
Anti-counterfeiting performance test is carried out to the Anti-fake thermosensitive paper in the above embodiments of the present application below.
By the common heat-sensitive paper of the Anti-fake thermosensitive paper of above-described embodiment 1 to 5 and comparative example 1 to 2, EPSONTM- is used respectively
88IV temperature-sensitive POS printer carries out the conventional figure message printing test in front.And respectively by above-described embodiment 1 to 5 and comparative example 1 to
2 carry out anti-fake test comparison.
Refering to Fig. 6, two thermosensitive color developments and the anti-fake different heat-sensitive paper 100 and 100 ' that develops the color respectively are taken.
(1) assume that 100 be Anti-fake thermosensitive paper comprising: body paper 101, priming coat 102, the finishing coat containing color developing agent
103, security coating 104.100 ' be Anti-fake thermosensitive paper comprising: body paper 101 ', priming coat 102 ', the face containing color developing agent apply
Layer 103 ', security coating 104 '.
At this point, making the security coating 104 of Anti-fake thermosensitive paper 100 and the finishing coat containing color developing agent of Anti-fake thermosensitive paper 100 '
103 ' contacts stack.Again from 103 position of finishing coat containing color developing agent for stacking upper layer heat-sensitive paper 100 or from stacking lower layer's temperature-sensitive
The position of the security coating 104 ' of paper 100 ' carries out anti-counterfeiting performance test in a manner of scraping, according to connecing between two heat-sensitive papers
The colour developing situation of the finishing coat 103 ' containing color developing agent of contacting surface --- heat-sensitive paper confirms anti-counterfeiting performance.
(2) assume that 100 be Anti-fake thermosensitive paper comprising: body paper 101, priming coat 102, the finishing coat containing color developing agent
103, security coating 104.100 ' be common heat-sensitive paper comprising: body paper 101 ', priming coat 102 ', the face containing color developing agent apply
Layer 103 ' while being common heat-sensitive paper (100 ', without 104 ').
At this point, making the security coating 104 of heat-sensitive paper 100 and the finishing coat 103 ' containing color developing agent of common heat-sensitive paper 100 '
Contact stacks.Again from 103 position of finishing coat containing color developing agent for stacking upper layer heat-sensitive paper 100 or from stacking lower layer's heat-sensitive paper
The position of 100 ' body paper 101, carries out anti-counterfeiting performance test in a manner of scraping, according to connecing between two heat-sensitive papers 100,100 '
The colour developing situation of the finishing coat 103 ' containing color developing agent of contacting surface --- heat-sensitive paper confirms anti-counterfeiting performance.
Refering to Fig. 7, take a heat-sensitive paper 100 and any thermosensitive color development different from the anti-fake colour developing of heat-sensitive paper 100
Heat-sensitive paper 200.
(1) assume that 100 be Anti-fake thermosensitive paper comprising: body paper 101, priming coat 102, the finishing coat containing color developing agent
103, security coating 104.200 be common heat-sensitive paper comprising: body paper 201, priming coat 202, heat-sensitive layer 203.
The security coating 104 of heat-sensitive paper 100 to be measured contacts folded with the finishing coat 203 containing color developing agent of any heat-sensitive paper
It puts.Again from 103 position of finishing coat containing color developing agent for stacking upper layer heat-sensitive paper 100 or from the original for stacking lower layer's heat-sensitive paper 200
The position of paper 201 carries out anti-counterfeiting performance test in a manner of scraping, according to the contact surface between two heat-sensitive papers --- contain colour developing
The colour developing situation of finishing coat 203 of agent, confirms anti-counterfeiting performance.
(2) assume that 100 be Anti-fake thermosensitive paper comprising: body paper 101, priming coat 102, the finishing coat containing color developing agent
103, security coating 104.200 be Anti-fake thermosensitive paper comprising: body paper 201, priming coat 202, the finishing coat containing color developing agent
203, security coating (not shown go out), 200 when being Anti-fake thermosensitive paper, is equipped in body paper 201 backwards to the side of priming coat 202 anti-fake
Coating.
The security coating 104 of heat-sensitive paper 100 to be measured contacts folded with the finishing coat 203 containing color developing agent of any heat-sensitive paper
It puts.Again from 103 position of finishing coat containing color developing agent for stacking upper layer heat-sensitive paper 100 or from stacking the anti-of lower layer's heat-sensitive paper 200
The position of pseudo- coating 204, carries out anti-counterfeiting performance test in a manner of scraping, according to the contact between two heat-sensitive papers 100,200
Face --- the colour developing situation of finishing coat 203 containing color developing agent confirms anti-counterfeiting performance.
Specific experiment result refers to table 1:
The anti-fake test comparison experimental result of table 1
According to upper test result as it can be seen that the Anti-fake thermosensitive paper of the application, by two heat-sensitive papers, two face contact front and back
After stacking, anti-counterfeiting performance is provided in positive surface colour development by way of scraping.Relative to comparative example, since the heat-sensitive paper back side is not anti-fake
Coating, will not be developed the color by scraping mode in heat-sensitive paper front can not provide anti-counterfeiting performance.
The above is only presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize the application
Equivalent structure or equivalent flow shift made by specification and accompanying drawing content is applied directly or indirectly in other relevant technologies
Field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of Anti-fake thermosensitive paper, which is characterized in that the Anti-fake thermosensitive paper includes:
Body paper；
Anti-fake back coating, is arranged in a surface of the body paper, and the anti-fake back coating is coated with by anti-counterfeit paint, wherein
The anti-counterfeit paint includes leuco dye microcapsules and interval matrix, and the leuco dye microcapsules include the first colourless dye
Material, first leuco dye are the leuco dye for showing blue, red, black or other colors；
Another surface of the body paper backwards to the back coating is arranged in priming coat；
A surface of the priming coat backwards to the body paper is arranged in finishing coat, and the finishing coat is coated with by painting coating,
Wherein, the painting coating includes color developing agent.
2. Anti-fake thermosensitive paper according to claim 1, which is characterized in that
The leuco dye microcapsules also include wall material, and the partial size of the leuco dye microcapsules is 2.0~6.0 microns；
The interval matrix is at least one of starch, polyolefin, polymethyl methacrylate, paraffin, the interval matrix
Partial size be 5.0~10.0 microns；
The painting coating includes at least leuco dye dispersion liquid, and the leuco dye dispersion liquid includes the second leuco dye and gathers
Vinyl alcohol, wherein the quality of second leuco dye accounts for the 70%~90% of the leuco dye dispersion liquid dry weight；Institute
The quality for stating polyvinyl alcohol accounts for the 10%~30% of the leuco dye dispersion liquid dry weight；Second leuco dye is to use
In the leuco dye for showing blue, red, black or other colors；
The color that second leuco dye is used to show is different from the color that first leuco dye is used to show.
3. Anti-fake thermosensitive paper according to claim 2, which is characterized in that
The priming coat is coated with by bottom-coating, wherein the bottom-coating includes the first filler and the first adhesive, institute
The quality for stating the first filler accounts for the 65%~85% of the bottom-coating dry weight；First adhesive accounts for the primary coat and applies
Expect the 15%~35% of dry weight；
Wherein, first filler includes the first fine particle size filler, and the first fine particle size filler accounts for first filler
The partial size of the 80%~100% of dry weight, the first fine particle size filler is less than or equal to 2 microns.
4. Anti-fake thermosensitive paper according to claim 2, which is characterized in that
The painting coating also includes the second filler, the second adhesive, chromogenic reagent solution, sensitizer solution and lubricant, described
The quality that the quality of second filler accounts for the 30%~60% of the painting coating dry weight, second adhesive accounts for the face
Apply the 10%~25% of the dry coating weight quality, quality of the chromogenic reagent solution account for the painting coating dry weight 20%~
45%, it is molten to account for the 10%~35% of the painting coating dry weight, sensitizer for the quality of the leuco dye dispersion liquid
The quality of liquid account for the 0%~30% of the painting coating dry weight and the quality of the lubricant account for the painting coating dry weight
The 0%~15% of quality；
Wherein, second filler includes the second fine particle size filler, and the second fine particle size filler accounts for second filler
The partial size of the 80%~100% of dry weight, the second fine particle size filler is less than or equal to 2 microns；
The chromogenic reagent solution includes the color developing agent and polyvinyl alcohol, wherein the quality of the color developing agent accounts for the developer solution
The 70%~90% of liquid dry weight；The quality of the polyvinyl alcohol account for the chromogenic reagent solution dry weight 10%~
30%；
The sensitizer solution includes sensitizer and polyvinyl alcohol, is done wherein the quality of the sensitizer accounts for the sensitizer solution
The 70%~90% of heavy amount, the quality of polyvinyl alcohol accounts for the 10%~30% of the sensitizer solution dry weight.
5. Anti-fake thermosensitive paper according to claim 2, which is characterized in that
For showing that the leuco dye of blue is bis- (dimethylamino) phenthazine of 10- benzoyl -3,7-, 7- [4- (two
Ethylamino) -2- (hexyloxy) phenyl] -7- (1- Ethyl-2-Methyl -1H- indol-3-yl) furans simultaneously [3,4-B] pyridine -5
(7H) -one, 3- (4- dimethylamino phenyl) -3- (4- methylethylamino phenyl) -6- dimethylamino phthalide, 6- dimethylamino -3,3-
At least one of bis- (4- dimethylaminophenyl) phthalides；
For showing that the leuco dye of black is 2- phenylamino -3- methyl -6- lignocaine fluorane, 2- phenylamino -3-
Methyl -6- dibutylamino fluorane, 3-N- isopentyl-N- ethylamino -6- methyl -7- anilinfluorane, 6'- [3- ethoxycarbonyl propyl)
Ethylamino] -3'- methyl -2'- (phenyl amino)-spiral shell [isobenzofuran -1- (3H), 9'- [9H] xanthenes] -3- ketone, 3,3- be bis-
At least one of [2- [4- (dimethylamino) phenyl] -2- (4- methoxyphenyl) vinyl] -4,5,6,7- Rabcide；
For showing that the red leuco dye is the chloro- 6'- of 2'- (lignocaine) fluorane, 3- diethylamino -6- first
Bis- (N- octyl -2 methyl indole) the O-phthalic lactones of base -7- chlorine fluorane, 3,3-, 9- [ethyl (3- methyl butyl) amino]-spiral shell
[12H- benzo [a] xanthene -12,1'(3'H)-isobenzofuran] -3'- ketone, 6'- [ethyl (4- aminomethyl phenyl) amino] -2'-
At least one of methyl-spiral shell [isobenzofuran -1 (3H), 9'- (9H) xanthenes] -3- ketone.
6. a kind of preparation method of Anti-fake thermosensitive paper, which is characterized in that be used to prepare as described in any one in claim 1-5 anti-
Pseudo- heat-sensitive paper, the preparation method include:
One body paper is provided；
It is coated with anti-counterfeit paint on a surface of the body paper, to form anti-fake back coating, wherein the anti-counterfeit paint includes nothing
Color dye microcapsule and interval matrix, the leuco dye microcapsules include the first leuco dye, first leuco dye
For for showing the leuco dye of blue, red, black or other colors, the coating weight of the anti-counterfeit paint is 5~
13g/m2；
It is coated with bottom-coating on another surface of the anti-fake back coating in the body paper, to form priming coat, the bottom
The coating weight for applying coating is 5~15g/m2；
It is coated with painting coating on a surface of the priming coat backwards to the body paper, to form finishing coat, wherein the face applies
Coating includes the color developing agent, and the coating weight of the painting coating is 3~12g/m2；
Drying and processing is passed through to the body paper after the formation finishing coat, the Anti-fake thermosensitive paper is made.
7. the preparation method of Anti-fake thermosensitive paper according to claim 6, which is characterized in that in the body paper backwards to described anti-
It is coated with before bottom-coating on another surface of pseudo- back coating, the preparation method further include: prepare the bottom-coating；
Described to prepare the bottom-coating include: to weigh the first filler, the first adhesive and water by the first preset ratio, and mixing is equal
It is even to obtain the bottom-coating that concentration is 22%~40% to configure；
Wherein, first filler be precipitated calcium carbonate, powdered whiting, calcined kaolin, water-washed kaoline, aluminium hydroxide,
At least one of hollow plastic pigment, silica；
First adhesive be biological latex, acrylic latex, styrene-butadiene latex, carboxylic styrene butadiene latex, in polyvinyl alcohol extremely
Few one kind.
8. the preparation method of Anti-fake thermosensitive paper according to claim 6, which is characterized in that in the priming coat backwards to described
It is coated with before painting coating on one surface of body paper, the preparation method further include: prepare the painting coating；
It is described that prepare the painting coating include: to weigh the second filler, the second adhesive, developer solution by the second preset ratio
Liquid, sensitizer solution, leuco dye dispersion liquid, lubricant and water are uniformly mixed to configure and obtain concentration as 25%~45%
The painting coating；
Wherein, second filler be precipitated calcium carbonate, powdered whiting, calcined kaolin, water-washed kaoline, aluminium hydroxide,
At least one of hollow plastic pigment, silica；
Second adhesive be biological latex, acrylic latex, styrene-butadiene latex, carboxylic styrene butadiene latex, in polyvinyl alcohol extremely
Few one kind；
The lubricant is at least one of calcium stearate, zinc stearate, aluminum stearate, paraffin.
9. the preparation method of Anti-fake thermosensitive paper according to claim 8, which is characterized in that the preparation method further include:
Prepare the chromogenic reagent solution；
Described to prepare the chromogenic reagent solution include: to weigh the color developing agent, polyethylene alcohol and water by third preset ratio, mixing
Uniformly the thick solution of color developing agent that concentration is 35%~50% is obtained to configure；
The thick solution of color developing agent is ground using controlling wet-type finishing machine, the developer solution that partial size is 0.3~1.8 micron is made
Liquid；
The preparation method further include: prepare the sensitizer solution；
Described to prepare the sensitizer solution include: to weigh sensitizer, polyethylene alcohol and water by the 4th preset ratio, is uniformly mixed
The thick solution of sensitizer that concentration is 35%~50% is obtained to configure；
The thick solution of sensitizer is ground using controlling wet-type finishing machine, it is molten the sensitizer that partial size is 0.5~2.0 micron is made
Liquid；
The preparation method further include: prepare the leuco dye dispersion liquid；
It is described prepare the leuco dye dispersion liquid include: by the 5th preset ratio weigh the second leuco dye, polyvinyl alcohol and
Water is uniformly mixed to configure and obtain the leuco dye coarse dispersion that concentration is 35%~50%；
The leuco dye coarse dispersion is ground using controlling wet-type finishing machine, is 0.5~1.0 micron described colourless so that partial size is made
Dye dispersion liquid.
10. the preparation method of Anti-fake thermosensitive paper according to claim 8, which is characterized in that
The color developing agent be 2,2- bis- (4- hydroxy phenyl) propane, 2,4 dihydroxydiphenylsulisomers, 4,4 '-dihydroxydiphenylsulisomers, 3,
3'- diallyl -4,4'- sulphonyl phenol, 4- [[4- (2- allyloxy) phenyl] sulfonyl] phenol, 4- hydroxyl -4' isopropyl oxygen
Base diphenyl sulphone (DPS), two base sulfone copolymers of bis- (2- chloroethyl) ether -4,4'- dihydroxy, 3,3'- diallyl -4,4'- sulphonyl benzene
Phenol, 3,3 '-diallyls -4,4 '-dihydroxydiphenylsulisomer, N- (p-toluenesulfonyl)-N'-3- (tolysulfonyl oxyphenyl)
At least one of urea；
The sensitizer is 1,2- biphenoxyl ethane, beta naphthal benzylic ether, 1,2- bis- toloxyl ethane, diphenyl sulphone (DPS), grass
Sour two pairs of benzyl chloride esters, to methylbenzyl alcohol oxalate diester, ethanedioic acid dibenzyl ester, vinyl bis-stearamides, stearic amide, hard
At least one of acyl aniline, vinyl bis-stearamides, acetoacetyl ortho-aminotoluene, tetramethyl diphenyl ethane.
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| CN113005812A (en) * | 2021-02-24 | 2021-06-22 | 宁波卓洋印务有限公司 | Thermochromic anti-counterfeiting coating and thermochromic anti-counterfeiting paper |
| CN113930185A (en) * | 2021-10-22 | 2022-01-14 | 焦作市蓝海精工包装机械有限公司 | Electrical adhesive tape and preparation method thereof |
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| CN114164706A (en) * | 2020-09-10 | 2022-03-11 | 金华盛纸业（苏州工业园区）有限公司 | Thermal paper and preparation method thereof |
| CN114960274A (en) * | 2022-06-21 | 2022-08-30 | 理光感热技术（无锡）有限公司 | High-stability thermal sensitive paper and preparation method thereof |
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| CN113930185A (en) * | 2021-10-22 | 2022-01-14 | 焦作市蓝海精工包装机械有限公司 | Electrical adhesive tape and preparation method thereof |
| CN114960274A (en) * | 2022-06-21 | 2022-08-30 | 理光感热技术（无锡）有限公司 | High-stability thermal sensitive paper and preparation method thereof |
| CN115897291A (en) * | 2022-10-20 | 2023-04-04 | 康爱特维迅（蓬莱）化学有限公司 | Thermosensitive recording composite material and preparation method thereof |
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Effective date of registration: 20220629 Address after: 212132, No. 8 Tung Hing East Road, Dagang, Jiangsu, Zhenjiang Patentee after: Goldeast Paper (Jiangsu) Co.,Ltd. Address before: 215126 No.2 Jinsheng Road, Shengpu Town, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee before: GOLD HUASHENG PAPER (SUZHOU INDUSTRIAL PARK) Co.,Ltd. |