CN111809442A - Three-proofing thermal sensitive paper capable of improving definition of printed patterns and manufacturing method thereof - Google Patents
Three-proofing thermal sensitive paper capable of improving definition of printed patterns and manufacturing method thereof Download PDFInfo
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- CN111809442A CN111809442A CN202010460597.3A CN202010460597A CN111809442A CN 111809442 A CN111809442 A CN 111809442A CN 202010460597 A CN202010460597 A CN 202010460597A CN 111809442 A CN111809442 A CN 111809442A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
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- 238000000034 method Methods 0.000 claims description 14
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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
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/82—Paper comprising more than one coating superposed
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
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- Laminated Bodies (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Abstract
The invention provides three-proofing thermal paper capable of improving definition of printed patterns and a manufacturing method thereof.
Description
Technical Field
The invention relates to the technical field of thermal paper, in particular to three-proofing thermal paper capable of improving the definition of a printed pattern and a manufacturing method thereof.
Background
The thermal paper is also called thermal surface recording paper or thermal copy paper, which is essentially a processed paper, and a layer of thermal color developing coating is coated on a base paper, and then the thermal color developing coating performs color development reaction under the action of thermal printing, so that corresponding characters or patterns are formed. The heat-sensitive paper in the prior art is simply coated with a layer of heat-sensitive color developing coating on base paper, the structure is simple, so that the heat-sensitive paper cannot effectively realize waterproof, antistatic and fireproof effects in the use process, and because the heat-sensitive paper is interfered by environmental factors such as water vapor, static electricity, high temperature and the like in the storage, transportation and use processes, if a corresponding function protective layer is not added to the heat-sensitive paper, the heat-sensitive paper is easily subjected to the condition of heat-sensitive recording function degradation; in addition, the heat-sensitive color developing coating is not uniform in the adhesion stability on the base paper, so that high-definition image-text heat-sensitive printing cannot be realized by the heat-sensitive color developing coating in different areas, and the heat-sensitive recording quality of the heat-sensitive paper is seriously influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides three-proofing thermal paper capable of improving the definition of a printed pattern, wherein a base material layer, a coating combination layer, a thermal coloration layer, an isolation layer, an antistatic layer, a high temperature resistant layer, a water permeation resistant layer and an encapsulation layer are stacked from bottom to top, and the coating combination layer can tightly combine thermal coloration coating in the thermal coloration layer, so that the thermal coloration coating can be uniformly and firmly combined in the whole thermal recording area, and the definition of the printed pattern of the thermal paper is improved.
The invention provides three-proofing thermal sensitive paper capable of improving definition of printed patterns, which is characterized in that:
the three-proofing thermal sensitive paper capable of improving the definition of the printed patterns comprises a base material layer, a coating binding layer, a thermal sensitive color development layer, an isolation layer, an antistatic layer, a high temperature resistant layer, a water permeation resistant layer and a packaging layer which are sequentially stacked from bottom to top; wherein,
the base material layer is formed by a base paper fiber layer with a composite structure;
the coating bonding layer is formed by a plurality of coating bonding microstructures which are distributed directionally;
the heat-sensitive color development layer is formed by heat-sensitive color development paint coated and filled on the paint combined microstructure;
the release layer is formed of a polymeric material that is insoluble with the heat-sensitive chromogenic coating;
the antistatic layer is formed by an antistatic material or an antistatic aggregation microstructure;
the high temperature resistant layer is formed by a polyester material with the glass transition temperature being greater than or equal to a preset temperature threshold value;
the water permeation resistant layer is formed by a hydrophobic material and/or a compact waterproof microstructure;
further, in the base material layer, the base paper fiber layer with the composite structure is formed by sequentially superposing a plurality of base paper fiber films; wherein,
among the plurality of base paper fiber films, base paper fiber films located at the bottommost surface and the topmost surface have the same first thickness, while other base paper fiber films located in the middle have the same second thickness, and the first thickness is greater than the second thickness;
further, in the paint bonding layer, the paint bonding microstructure is formed of a plurality of micro-structural units having a one-dimensional orientation distribution form, a two-dimensional orientation distribution form, or a circumferential orientation distribution form;
the micro-construction units form the coating combined microstructure in a periodic repeating form or a random arrangement form;
further, in the coating material bonding microstructure, the size of the micro-structuring unit and/or the size of the gap between adjacent different micro-structuring units is in the same number order as the thermosensitive coloring particles in the thermosensitive coloring coating material;
or,
the micro-structuring unit has an arc surface shape, a sawtooth surface shape, or a cylinder surface shape;
further, in the thermosensitive color developing layer, the thermosensitive color developing coating comprises an organic solvent, thermosensitive color changing particles, a dispersant, a developer and an antioxidant, which are mixed to form; wherein,
the weight ratio of the organic solvent to the thermosensitive color-changing particles to the dispersant to the color-developing agent to the antioxidant is 50-80: 15-30: 1-5: 1-8: 0.5 to 3;
the heat-sensitive color-developing coating is formed by uniformly stirring and mixing the organic solvent, the heat-sensitive color-developing particles, the dispersing agent, the color-developing agent and the antioxidant at the temperature of 20-30 ℃;
further, the heat-sensitive color development layer is formed by a first coating sub-layer and a second coating sub-layer which are formed by the heat-sensitive color development coating on the coating combination layer in sequence; wherein,
the first coating sub-layer is in direct contact with the coating bonding layer, the first coating sub-layer is used for filling the coating bonding microstructure in the coating bonding layer;
the second coating sublayer in direct contact with the first coating sublayer and having a thickness greater than a thickness of the first coating sublayer;
further, in the antistatic layer, the antistatic material includes a sulfur-free antistatic resin and an antistatic additive;
or,
in the antistatic layer, the antistatic aggregation microstructure comprises a two-dimensional latticed microstructure formed by antistatic composite carbon fibers, wherein the grid size of the two-dimensional latticed microstructure is 10-25 μm;
further, the high temperature resistant layer is formed by aromatic hydrocarbon polyester material with the glass transition temperature of more than or equal to 200 ℃;
or,
in the water permeation resistant layer, the hydrophobic material is formed by dispersing and mixing hydrophobic inorganic particles in polyester resin;
or,
in the water penetration resistant layer, the compact waterproof microstructure is formed by performing a pressing action on polyester resin vertical to the surface of the three-proof thermal sensitive paper;
or,
the packaging layer comprises an anti-grease layer and an anti-scraping layer which are sequentially stacked from bottom to top; wherein,
the anti-grease layer is bonded on the water permeation resistant layer through a polyacrylic acid pressure sensitive adhesive;
further, the coating bonding layer is formed by a plurality of coating bonding microstructures in directional distribution, specifically, the coating bonding microstructures are formed by combining microstructure units in a periodic repeating form or a random arrangement form and arranging the combined microstructures obtained by combination on the substrate layer, and the specific forming process is as follows:
step S1, obtaining the structural information of the coating bonding microstructure, and carrying out two-dimensional directional distribution morphological arrangement on the coating bonding microstructure through the following formula (1) so as to determine the corresponding two-dimensional directional distribution information P (l, d)
In the formula (1), pi is a circumferential rate, exp is an exponential function with a natural constant e as a base, n is the repetition frequency of two-dimensional directional distribution, l is the period length of a single directional distribution unit in the two-dimensional directional distribution, d is the distance between adjacent directional distribution units in the two-dimensional directional distribution, and r is the radius of a distribution area of the two-dimensional directional distribution;
step S2, discretely arranging the two-dimensional orientation distribution information P (l, d) determined in the step S1 by the following formula (2), thereby determining a random combination information set F (k, λ) regarding the bonding microstructure of the coating material
In the above formula (2), k is the number of random arrangements of the microstructure units, and λ isThe distance between different images formed by random arrangement of the micro-structure units is mu which is the standard value of random arrangement of the micro-structure units,
for a random permutation correlation function of the micro-structuring element,
a coating bonding microstructure formed for random arrangement;
step S3, according to the random combination information set F (k, lambda) of the paint binding microstructure determined in the step S2, the overlapping area information among different microstructure units which are randomly arranged is calculated through the following formula (3), and the paint binding microstructure with the best definition is screened out according to the overlapping area information
In the formula (3), m is a serial number of the coating microstructure and its value is a positive integer, F' (k, λ) is a derivative of each combination of the coating microstructure, g (r) is a total area of random combinations corresponding to the coating microstructure, g (o) is an overlap area value corresponding to the overlap area information, Q (r, o) is a determination value for the presence of the coating microstructure having the best definition, and when Q (r, o) is 1, it indicates that the coating microstructure having the best definition is present, and the combined microstructure obtained by combination is disposed on the substrate layer, thereby forming the coating microstructure.
The invention also provides a method for manufacturing the three-proofing thermal sensitive paper capable of improving the definition of the printed patterns, which is characterized in that,
the three-proofing thermal paper capable of improving the definition of the printed patterns comprises a base material layer, a coating combining layer, a thermal-sensitive color development layer, an isolation layer, an antistatic layer, a high-temperature-resistant layer, a water permeation resistant layer and a packaging layer which are sequentially stacked from bottom to top, and the manufacturing method of the three-proofing thermal paper capable of improving the definition of the printed patterns comprises the following steps:
step T1, manufacturing a base paper fiber layer with a composite structure, thereby forming a base material layer;
a step T2 of making a paint bond layer formed by a plurality of directionally distributed paint bond microstructures, wherein,
the coating bonding layer is formed by a plurality of coating bonding microstructures in directional distribution, specifically, the coating bonding microstructures are formed by combining microstructure units in a periodic repeating form or a random arrangement form and arranging the combined microstructures obtained by combination on the substrate layer, and the coating bonding microstructures are formed by the following specific forming process:
step T101, obtaining the structural information of the coating bonding microstructure, and carrying out two-dimensional directional distribution morphological arrangement on the coating bonding microstructure through the following formula (1) so as to determine corresponding two-dimensional directional distribution information P (l, d)
In the formula (1), pi is a circumferential rate, exp is an exponential function with a natural constant e as a base, n is the repetition frequency of two-dimensional directional distribution, l is the period length of a single directional distribution unit in the two-dimensional directional distribution, d is the distance between adjacent directional distribution units in the two-dimensional directional distribution, and r is the radius of a distribution area of the two-dimensional directional distribution;
step T102, the two-dimensional directional distribution information P (l, d) determined in the step T101 is discretely arranged by the following formula (2), so as to determine a random combination information set F (k, lambda) about the bonding microstructure of the coating
In the above formula (2), k is the number of random arrangements of the micro-structuring element, λ is the pitch distance between different images formed by random arrangements of the micro-structuring element, μ is the standard value for the random arrangement of the micro-structuring element,
for a random permutation correlation function of the micro-structuring element,
a coating bonding microstructure formed for random arrangement;
step T103, according to the random combination information set F (k, lambda) of the coating bonding microstructure determined in the step T102, and through the following formula (3), calculating the overlapping area information between different microstructure units which are randomly arranged, and screening out the coating bonding microstructure with the best definition according to the overlapping area information
In the formula (3), m is a serial number of the coating microstructure and its value is a positive integer, F' (k, λ) is a derivative of each combination of the coating bonding microstructures to determine an imaging value corresponding to the combination, g (r) is a total random combination area corresponding to the coating bonding microstructures, g (o) is an overlap area value corresponding to the overlap area information, Q (r, o) is a coating microstructure having an optimal definition, and when Q (r, o) is 1, it indicates that a coating microstructure having an optimal definition exists, and the combined microstructure obtained by combining is disposed on the substrate layer, thereby forming the coating bonding microstructure;
a step T3 of coating and filling a thermosensitive color-developing coating on the coating-bonded microstructure, thereby forming a thermosensitive color-developing layer;
a step T4 of forming a separation layer by the heat-sensitive color developing paint being an insoluble polymer material;
step T5, forming an antistatic layer by an antistatic material or an antistatic aggregation microstructure;
a step T6 of forming a high temperature resistant layer by a polyester material having a glass transition temperature greater than or equal to a predetermined temperature threshold;
and T7, forming a water-resistant layer by hydrophobic materials and/or compact waterproof microstructures.
Compared with the prior art, this three proofings thermal sensitive paper is through with the substrate layer, the coating anchor coat, heat sensitive color development layer, the isolation layer, the antistatic layer, high temperature resistant layer, water permeation resistant layer and encapsulation layer are by lower supreme range upon range of setting up, this coating anchor coat can combine wherein heat sensitive color development coating in the heat sensitive color development layer closely, thereby guarantee this heat sensitive color development coating can combine in whole heat sensitive recording area uniformly and firmly, with this printed pattern definition who improves thermal sensitive paper, in addition, this three proofings thermal sensitive paper is still through setting up the antistatic layer, high temperature resistant layer and water permeation resistant layer realize corresponding antistatic, fire prevention and waterproof performance, thereby improve this three proofings thermal sensitive paper to external environment's anti-erosion nature and life.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a three-proofing thermal paper capable of improving the definition of a printed pattern according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a three-proofing thermal paper capable of improving the definition of a printed pattern according to an embodiment of the present invention. The three-proofing thermal sensitive paper capable of improving the definition of printed patterns comprises a base material layer, a coating binding layer, a thermal sensitive color development layer, an isolation layer, an antistatic layer, a high temperature resistant layer, a water permeation resistant layer and a packaging layer which are sequentially stacked from bottom to top; wherein,
the base material layer is formed by a base paper fiber layer with a composite structure;
the coating bonding layer is formed by a plurality of coating bonding microstructures which are distributed directionally;
the heat-sensitive color development layer is formed by heat-sensitive color development paint coated and filled on the paint combined microstructure;
the separating layer is formed of a polymer material that is insoluble with the heat-sensitive color developing coating;
the antistatic layer is formed by antistatic material or antistatic aggregation microstructure;
the high temperature resistant layer is formed by a polyester material with the glass transition temperature being greater than or equal to a preset temperature threshold value;
the water-permeable barrier is formed of hydrophobic materials and/or dense waterproof microstructures.
The three-proofing heat-sensitive paper has the advantages that the coating binding layer is arranged between the base material layer and the heat-sensitive color development layer, and the coating binding layer is provided with a plurality of coating binding microstructures which are distributed directionally, so that the corresponding coating area of the heat-sensitive color development coating in the heat-sensitive color development layer can be increased in the coating process, the binding uniformity and stability between the heat-sensitive color development coating and the coating binding layer are improved, the condition that coating gaps are generated in the heat-sensitive color development layer is avoided, and the definition and durability of heat-sensitive printing patterns of the heat-sensitive color development layer are effectively improved; in addition, this three proofings thermal sensitive paper still realizes corresponding antistatic, fire prevention and waterproof performance through setting up antistatic layer, high temperature resistant layer and water permeation resistant layer to this erosion resistance and the durability that improves thermal sensitive paper.
Preferably, in the base material layer, the base paper fiber layer with the composite structure is formed by sequentially stacking a plurality of base paper fiber films; wherein,
of the plurality of base paper fiber films, base paper fiber films located at the bottommost surface and the topmost surface have the same first thickness, and the other base paper fiber films located in the middle have the same second thickness, and the first thickness is greater than the second thickness.
The base paper fiber layer with the composite structure is formed by sequentially overlapping a plurality of base paper fiber films, so that the toughness and the tear resistance of the base paper fiber layer can be effectively improved, and the base paper fiber films positioned at the bottommost surface and the topmost surface have larger thickness so as to avoid the base paper fiber layer from warping and deforming.
Preferably, in the paint bonding layer, the paint bonding microstructure is formed by a number of micro-structuring units having a one-dimensional oriented distribution morphology, a two-dimensional oriented distribution morphology or a circumferentially oriented distribution morphology;
the microstructure units constitute the coating material combining microstructure in a periodic repeating form or a random arrangement form.
The coating bonding microstructure is designed to have a one-dimensional oriented distribution form, a two-dimensional oriented distribution form or a circumferential oriented distribution form, so that the coating uniformity and the coating bonding stability of the thermosensitive chromogenic coating in the whole area can be ensured.
Preferably, in the coating bonding microstructure, the size of the micro-structuring element and/or the size of the gap between adjacent different micro-structuring elements is in the same order of magnitude as the particle size of the heat-sensitive chromogenic particles in the heat-sensitive chromogenic coating.
Since the thermosensitive chromogenic coating is directly coated in contact with the coating combined microstructure, the size relationship between the particle size of thermosensitive chromogenic particles in the thermosensitive chromogenic coating and the size of a microstructure unit can directly influence the combination tightness and stability between the thermosensitive chromogenic coating and the coating combined microstructure, and the two are set to be in the same number level, so that the thermosensitive chromogenic coating can be tightly and stably coated on the coating combined microstructure, and the color development definition and durability of a thermosensitive color development layer are improved.
Preferably, the micro-structuring unit has an arc surface shape, a saw tooth surface shape, or a cylinder surface shape.
The micro-structural unit has an arc surface shape, a sawtooth surface shape or a cylinder surface shape, and can meet the coating requirements of different thermosensitive color developing coatings, so that the condition that coating gaps occur on the surface of the thermosensitive color developing layer in contact with the coating bonding layer is avoided.
Preferably, in the thermosensitive color developing layer, the thermosensitive color developing coating includes an organic solvent, thermosensitive color changing particles, a dispersant, a developer, and an antioxidant; wherein,
the weight ratio of the organic solvent, the thermosensitive color-changing particles, the dispersing agent, the color-developing agent and the antioxidant is 50-80: 15-30: 1-5: 1-8: 0.5 to 3;
the heat-sensitive color developing coating is formed by uniformly stirring and mixing the organic solvent, the heat-sensitive color changing particles, the dispersing agent, the color developing agent and the antioxidant at the temperature of 20-30 ℃.
The thermosensitive color developing coating obtained by mixing the components according to the weight ratio and the temperature condition can improve the thermosensitive color developing response and the durability of the thermosensitive color developing layer to the maximum extent.
Preferably, the heat-sensitive color development layer is formed by a first paint coating sub-layer and a second paint coating sub-layer which are formed by the heat-sensitive color development paint on the paint combination layer in sequence; wherein,
the first coating sub-layer is in direct contact with the coating bonding layer, the first coating sub-layer is used for filling the coating bonding microstructure in the coating bonding layer;
the second coating sublayer is in direct contact with the first coating sublayer and has a thickness greater than a thickness of the first coating sublayer.
The thermosensitive color developing layer is formed by sequentially laminating the first coating material coating sublayer and the second coating material coating sublayer, so that the situation that the thermosensitive color developing layer is uneven in coating thickness and excessively concentrated in thermosensitive color changing particles due to single-layer coating can be prevented.
Preferably, in the antistatic layer, the antistatic material includes an antistatic resin containing no sulfur and an antistatic additive.
The antistatic material formed by the antistatic resin without sulfur and the antistatic additive can effectively improve the antistatic performance of the antistatic layer.
Preferably, in the antistatic layer, the antistatic aggregation microstructure includes a two-dimensional lattice-shaped microstructure formed of antistatic composite carbon fibers, wherein a lattice size of the two-dimensional lattice-shaped microstructure is 10 μm to 25 μm.
The two-dimensional latticed microstructure formed by the antistatic composite carbon fibers can effectively prevent static from gathering in a local area in the thermal sensitive paper, so that the condition that the thermal sensitive paper is subjected to electrostatic breakdown is avoided.
Preferably, the high temperature resistant layer is formed of an aromatic hydrocarbon-based polyester material having a glass transition temperature of 200 ℃ or higher.
The high-temperature resistant layer is formed by the aromatic hydrocarbon polyester material with the glass transition temperature of more than or equal to 200 ℃, so that the high-temperature resistance and the flame resistance of the thermal paper can be improved, and the applicability of the thermal paper to a high-temperature environment is improved.
Preferably, in the water permeation resistant layer, the hydrophobic material is formed by dispersing and mixing hydrophobic inorganic particles in a polyester resin.
The water penetration resistant layer is formed by dispersing and mixing hydrophobic inorganic particles in the polyester resin, so that the manufacturing cost and difficulty of the water penetration resistant layer are reduced, and the waterproof performance of the thermal sensitive paper is improved to the maximum extent.
Preferably, in the water penetration resistant layer, the compact waterproof microstructure is formed by pressing the polyester resin perpendicular to the surface of the three-proof thermal paper.
The compact waterproof microstructure is designed to perform a pressing effect on the polyester resin perpendicular to the surface of the three-proofing thermal paper to form an internal laminated structure capable of effectively preventing external environment water vapor from permeating into the thermal paper.
Preferably, the packaging layer comprises an anti-grease layer and an anti-scraping layer which are sequentially stacked from bottom to top; wherein,
the grease resistant layer is bonded to the water permeable resistant layer by a polyacrylic acid pressure sensitive adhesive.
The oil resistance and the scratch resistance of the thermal paper can be improved by sequentially stacking the grease-resistant layer and the scratch-resistant layer from bottom to top to form the packaging layer, so that the thermal paper is prevented from being polluted by grease from an operator and damaged by scratches in the operation process.
Preferably, the coating bonding layer is formed by a plurality of coating bonding microstructures in directional distribution, specifically, the coating bonding microstructures are formed by combining the microstructure units in a periodic repeating form or a random arrangement form and arranging the combined microstructures obtained by combining on the substrate layer, and the specific forming process is as follows:
step S1, obtaining the structural information of the paint binding microstructure, and performing two-dimensional directional distribution morphological arrangement on the paint binding microstructure through the following formula (1) to determine the corresponding two-dimensional directional distribution information P (l, d)
In the formula (1), pi is a circumferential rate, exp is an exponential function with a natural constant e as a base, n is the repetition frequency of two-dimensional directional distribution, l is the period length of a single directional distribution unit in the two-dimensional directional distribution, d is the distance between adjacent directional distribution units in the two-dimensional directional distribution, and r is the radius of a distribution area of the two-dimensional directional distribution;
step S2, the two-dimensional orientation distribution information P (l, d) determined in the step S1 is discretely arranged by the following formula (2), thereby determining a random combination information set F (k, λ) about the bonding microstructure of the coating material
In the above formula (2), k is a microstructure unitThe random arrangement times of the elements, lambda is the distance between different images formed by random arrangement of the micro-construction units, mu is the standard value of random arrangement of the micro-construction units,
for a random permutation correlation function of the micro-structuring element,
a coating bonding microstructure formed for random arrangement;
step S3, according to the random combination information set F (k, lambda) of the paint binding microstructure determined in the step S2, the overlapping area information among different microstructure units which are randomly arranged is calculated through the following formula (3), and the paint binding microstructure with the best definition is screened out according to the overlapping area information
In the formula (3), m is a serial number of the coating microstructure and its value is a positive integer, F' (k, λ) is a derivative of each combination of the coating microstructure, g (r) is a total area of random combinations corresponding to the coating microstructure, g (o) is an overlap area value corresponding to the overlap area information, Q (r, o) is a determination value for the presence of the coating microstructure having the best definition, and when Q (r, o) is 1, it indicates that the coating microstructure having the best definition is present, and the combined microstructure obtained by combination is disposed on the substrate layer, thereby forming the coating microstructure.
The design process of the coating combined microstructure can randomly combine the microstructure units with different shapes such as an arc surface shape, a sawtooth surface shape or a cylinder surface shape in different forms, and automatically screen out the coating microstructure with the optimal definition, so that the structural optimization of the coating microstructure is ensured.
In addition, the embodiment of the invention also provides a method for manufacturing the three-proofing thermal paper capable of improving the definition of the printed patterns, the three-proofing thermal paper capable of improving the definition of the printed patterns comprises a base material layer, a coating bonding layer, a thermal coloration layer, an isolation layer, an antistatic layer, a high temperature resistant layer, a permeation resistant layer and a packaging layer which are sequentially stacked from bottom to top, and the method for manufacturing the three-proofing thermal paper capable of improving the definition of the printed patterns comprises the following steps:
step T1, manufacturing a base paper fiber layer with a composite structure, thereby forming a base material layer;
a step T2 of making a paint bond layer formed by a plurality of directionally distributed paint bond microstructures, wherein,
the coating bonding layer is formed by a plurality of coating bonding microstructures in directional distribution, specifically, the microstructure units are combined in a periodic repeating form or a random arrangement form, and the combined microstructures obtained by combination are arranged on the substrate layer, so that the coating bonding microstructures are formed, and the specific forming process is as follows:
step T101, obtaining the structural information of the coating bonding microstructure, and carrying out two-dimensional directional distribution morphological arrangement on the coating bonding microstructure through the following formula (1) so as to determine corresponding two-dimensional directional distribution information P (l, d)
In the formula (1), pi is a circumferential rate, exp is an exponential function with a natural constant e as a base, n is the repetition frequency of two-dimensional directional distribution, l is the period length of a single directional distribution unit in the two-dimensional directional distribution, d is the distance between adjacent directional distribution units in the two-dimensional directional distribution, and r is the radius of a distribution area of the two-dimensional directional distribution;
step T102, the two-dimensional directional distribution information P (l, d) determined in the step T101 is discretely arranged by the following formula (2), so as to determine a random combination information set F (k, lambda) about the bonding microstructure of the coating
In the above formula (2), k is the number of random arrangements of the micro-structuring element, λ is the pitch distance between different images formed by random arrangements of the micro-structuring element, μ is the standard value for the random arrangement of the micro-structuring element,
for a random permutation correlation function of the micro-structuring element,
a coating bonding microstructure formed for random arrangement;
step T103, according to the random combination information set F (k, λ) of the coating bonding microstructure determined in the step T102, and through the following formula (3), calculating the overlapping area information between different microstructure units which are randomly arranged, and screening out the coating bonding microstructure with the best definition according to the overlapping area information
In the formula (3), m is a serial number of the coating microstructure and its value is a positive integer, F' (k, λ) is a derivative of each combination of the coating bonding microstructures to determine an imaging value corresponding to the combination, g (r) is a total random combination area corresponding to the coating bonding microstructures, g (o) is an overlap area value corresponding to the overlap area information, Q (r, o) is a coating microstructure having an optimal definition, and when Q (r, o) is 1, it indicates that a coating microstructure having an optimal definition exists, and the combined microstructure obtained by combining is disposed on the substrate layer, thereby forming the coating bonding microstructure;
a step T3 of coating and filling a thermosensitive color-developing coating on the coating-bonded microstructure, thereby forming a thermosensitive color-developing layer;
a step T4 of forming a separation layer by the heat-sensitive color developing coating being an insoluble polymer material;
step T5, forming an antistatic layer by an antistatic material or an antistatic aggregation microstructure;
a step T6 of forming a high temperature resistant layer by a polyester material having a glass transition temperature greater than or equal to a predetermined temperature threshold;
and T7, forming a water-resistant layer by hydrophobic materials and/or compact waterproof microstructures.
Known from the content of above-mentioned embodiment, this improve three proofings thermal paper of printing pattern definition is through with the substrate layer, the coating anchor coat, heat sensitive color development layer, the isolation layer, the antistatic layer, high temperature resistant layer, water permeation resistant layer and encapsulation layer are by lower supreme range upon range of setting up, this coating anchor coat can closely combine wherein with the heat sensitive color development coating in the heat sensitive color development layer, thereby guarantee that this heat sensitive color development coating can combine in whole heat sensitive recording area evenly and firmly, with this improvement thermal paper's printing pattern definition, in addition, this three proofings thermal paper is still through setting up the antistatic layer, corresponding antistatic, fire prevention and waterproof performance are realized to high temperature resistant layer and water permeation resistant layer, thereby improve this thermal paper to external environment's anti-erosion nature and life.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. Three proofings thermal sensitive paper that can improve printing pattern definition, its characterized in that:
the three-proofing thermal sensitive paper capable of improving the definition of the printed patterns comprises a base material layer, a coating binding layer, a thermal sensitive color development layer, an isolation layer, an antistatic layer, a high temperature resistant layer, a water permeation resistant layer and a packaging layer which are sequentially stacked from bottom to top; wherein,
the base material layer is formed by a base paper fiber layer with a composite structure;
the coating bonding layer is formed by a plurality of coating bonding microstructures which are distributed directionally;
the heat-sensitive color development layer is formed by heat-sensitive color development paint coated and filled on the paint combined microstructure;
the release layer is formed of a polymeric material that is insoluble with the heat-sensitive chromogenic coating;
the antistatic layer is formed by an antistatic material or an antistatic aggregation microstructure;
the high temperature resistant layer is formed by a polyester material with the glass transition temperature being greater than or equal to a preset temperature threshold value;
the water permeation resistant layer is formed of a hydrophobic material and/or a dense waterproof microstructure.
2. The three-proofing thermal paper capable of improving the definition of a printed pattern according to claim 1, wherein:
in the base material layer, the base paper fiber layer with the composite structure is formed by sequentially superposing a plurality of base paper fiber films; wherein,
of the plurality of base paper fiber films, base paper fiber films located at a bottommost surface and a topmost surface have the same first thickness, and other base paper fiber films located in the middle have the same second thickness, and the first thickness is greater than the second thickness.
3. The three-proofing thermal paper capable of improving the definition of a printed pattern according to claim 1, wherein:
in the coating bonding layer, the coating bonding microstructure is formed by a plurality of micro-construction units with one-dimensional orientation distribution form, two-dimensional orientation distribution form or circumferential orientation distribution form;
the microstructure units constitute the coating material binding microstructure in a periodic repeating form or a random arrangement form.
4. The three-proofing thermal paper capable of improving the definition of a printed pattern according to claim 2, wherein:
in the coating bonding microstructure, the size of the micro-construction units and/or the size of gaps between adjacent different micro-construction units is in the same number order as the particle size of the thermosensitive chromogenic particles in the thermosensitive chromogenic coating;
or,
the micro-structuring unit has an arc surface shape, a sawtooth surface shape, or a cylinder surface shape.
5. The three-proofing thermal paper capable of improving the definition of a printed pattern according to claim 1, wherein:
in the heat-sensitive color development layer, the heat-sensitive color development coating comprises an organic solvent, heat-sensitive color development particles, a dispersing agent, a color developing agent and an antioxidant which are mixed to form the heat-sensitive color development coating; wherein,
the weight ratio of the organic solvent to the thermosensitive color-changing particles to the dispersant to the color-developing agent to the antioxidant is 50-80: 15-30: 1-5: 1-8: 0.5 to 3;
the heat-sensitive color-developing coating is formed by uniformly stirring and mixing the organic solvent, the heat-sensitive color-developing particles, the dispersing agent, the color-developing agent and the antioxidant at the temperature of 20-30 ℃.
6. The three-proofing thermal paper capable of improving the definition of a printed pattern according to claim 1, wherein:
the heat-sensitive color development layer is formed by a first coating sub-layer and a second coating sub-layer which are formed by the heat-sensitive color development coating on the coating combination layer in sequence; wherein,
the first coating sub-layer is in direct contact with the coating bonding layer, the first coating sub-layer is used for filling the coating bonding microstructure in the coating bonding layer;
the second coating sublayer is in direct contact with the first coating sublayer and has a thickness greater than a thickness of the first coating sublayer.
7. The three-proofing thermal paper capable of improving the definition of a printed pattern according to claim 1, wherein:
in the antistatic layer, the antistatic material includes an antistatic resin containing no sulfur and an antistatic additive;
or,
in the antistatic layer, the antistatic aggregation microstructure comprises a two-dimensional latticed microstructure formed by antistatic composite carbon fibers, wherein the grid size of the two-dimensional latticed microstructure is 10-25 μm.
8. The three-proofing thermal paper capable of improving the definition of a printed pattern according to claim 1, wherein:
the high temperature resistant layer is formed by aromatic hydrocarbon polyester material with the glass transition temperature of more than or equal to 200 ℃;
or,
in the water permeation resistant layer, the hydrophobic material is formed by dispersing and mixing hydrophobic inorganic particles in polyester resin;
or,
in the water penetration resistant layer, the compact waterproof microstructure is formed by performing a pressing action on polyester resin vertical to the surface of the three-proof thermal sensitive paper;
or,
the packaging layer comprises an anti-grease layer and an anti-scraping layer which are sequentially stacked from bottom to top; wherein,
the anti-grease layer is bonded on the anti-water permeable layer through polyacrylic acid pressure sensitive adhesive.
9. The three-proofing thermal paper capable of improving the definition of a printed pattern according to claim 1, wherein:
the coating bonding layer is formed by a plurality of coating bonding microstructures in directional distribution, specifically, the coating bonding microstructures are formed by combining microstructure units in a periodic repeating form or a random arrangement form and arranging the combined microstructures obtained by combination on the substrate layer, and the coating bonding microstructures are formed by the following specific forming process:
step S1, obtaining the structural information of the coating bonding microstructure, and carrying out two-dimensional directional distribution morphological arrangement on the coating bonding microstructure through the following formula (1) so as to determine the corresponding two-dimensional directional distribution information P (l, d)
In the formula (1), pi is a circumferential rate, exp is an exponential function with a natural constant e as a base, n is the repetition frequency of two-dimensional directional distribution, l is the period length of a single directional distribution unit in the two-dimensional directional distribution, d is the distance between adjacent directional distribution units in the two-dimensional directional distribution, and r is the radius of a distribution area of the two-dimensional directional distribution;
step S2, discretely arranging the two-dimensional orientation distribution information P (l, d) determined in the step S1 by the following formula (2), thereby determining a random combination information set F (k, λ) regarding the bonding microstructure of the coating material
In the above formula (2), k is the number of random arrangements of the micro-structuring element, λ is the pitch distance between different images formed by random arrangements of the micro-structuring element, μ is the standard value for the random arrangement of the micro-structuring element,
for a random permutation correlation function of the micro-structuring element,
a coating bonding microstructure formed for random arrangement;
step S3, according to the random combination information set F (k, lambda) of the paint binding microstructure determined in the step S2, the overlapping area information among different microstructure units which are randomly arranged is calculated through the following formula (3), and the paint binding microstructure with the best definition is screened out according to the overlapping area information
In the formula (3), m is a serial number of the coating microstructure and its value is a positive integer, F' (k, λ) is a derivative of each combination of the coating microstructure, g (r) is a total area of random combinations corresponding to the coating microstructure, g (o) is an overlap area value corresponding to the overlap area information, Q (r, o) is a determination value for the presence of the coating microstructure having the best definition, and when Q (r, o) is 1, it indicates that the coating microstructure having the best definition is present, and the combined microstructure obtained by combination is disposed on the substrate layer, thereby forming the coating microstructure.
10. The method for manufacturing the three-proofing thermal paper capable of improving the definition of the printed patterns according to claim 1, wherein the three-proofing thermal paper capable of improving the definition of the printed patterns comprises a base material layer, a coating bonding layer, a thermal coloration layer, an isolation layer, an antistatic layer, a high temperature resistant layer, a water permeation resistant layer and an encapsulation layer which are sequentially stacked from bottom to top, and the method for manufacturing the three-proofing thermal paper capable of improving the definition of the printed patterns comprises the following steps:
step T1, manufacturing a base paper fiber layer with a composite structure, thereby forming a base material layer;
a step T2 of making a paint bond layer formed by a plurality of directionally distributed paint bond microstructures, wherein,
the coating bonding layer is formed by a plurality of coating bonding microstructures in directional distribution, specifically, the coating bonding microstructures are formed by combining microstructure units in a periodic repeating form or a random arrangement form and arranging the combined microstructures obtained by combination on the substrate layer, and the coating bonding microstructures are formed by the following specific forming process:
step T101, obtaining the structural information of the coating bonding microstructure, and carrying out two-dimensional directional distribution morphological arrangement on the coating bonding microstructure through the following formula (1) so as to determine corresponding two-dimensional directional distribution information P (l, d)
In the formula (1), pi is a circumferential rate, exp is an exponential function with a natural constant e as a base, n is the repetition frequency of two-dimensional directional distribution, l is the period length of a single directional distribution unit in the two-dimensional directional distribution, d is the distance between adjacent directional distribution units in the two-dimensional directional distribution, and r is the radius of a distribution area of the two-dimensional directional distribution;
step T102, the two-dimensional directional distribution information P (l, d) determined in the step T101 is discretely arranged by the following formula (2), so as to determine a random combination information set F (k, lambda) about the bonding microstructure of the coating
In the above formula (2), k is the number of random arrangements of the micro-structuring element, λ is the pitch distance between different images formed by random arrangements of the micro-structuring element, μ is the standard value for the random arrangement of the micro-structuring element,
for a random permutation correlation function of the micro-structuring element,
a coating bonding microstructure formed for random arrangement;
step T103, according to the random combination information set F (k, lambda) of the coating bonding microstructure determined in the step T102, and through the following formula (3), calculating the overlapping area information between different microstructure units which are randomly arranged, and screening out the coating bonding microstructure with the best definition according to the overlapping area information
In the formula (3), m is a serial number of the coating microstructure and its value is a positive integer, F' (k, λ) is a derivative of each combination of the coating bonding microstructures to determine an imaging value corresponding to the combination, g (r) is a total random combination area corresponding to the coating bonding microstructures, g (o) is an overlap area value corresponding to the overlap area information, Q (r, o) is a coating microstructure having an optimal definition, and when Q (r, o) is 1, it indicates that a coating microstructure having an optimal definition exists, and the combined microstructure obtained by combining is disposed on the substrate layer, thereby forming the coating bonding microstructure;
a step T3 of coating and filling a thermosensitive color-developing coating on the coating-bonded microstructure, thereby forming a thermosensitive color-developing layer;
a step T4 of forming a separation layer by the heat-sensitive color developing paint being an insoluble polymer material;
step T5, forming an antistatic layer by an antistatic material or an antistatic aggregation microstructure;
a step T6 of forming a high temperature resistant layer by a polyester material having a glass transition temperature greater than or equal to a predetermined temperature threshold;
and T7, forming a water-resistant layer by hydrophobic materials and/or compact waterproof microstructures.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429302A (en) * | 2000-05-15 | 2003-07-09 | 斯托拉恩索公司 | Paper or paperboard laminate and method of producing such laminate |
| CN1472390A (en) * | 2003-02-17 | 2004-02-04 | 惠州志豪特种纸业有限公司 | Heat sensitive paper |
| CN109910458A (en) * | 2017-12-13 | 2019-06-21 | 江苏万宝瑞达高新技术有限公司 | A kind of three proofings heat-sensitive paper promoting printed patterns clarity |
| CN110379293A (en) * | 2019-07-18 | 2019-10-25 | 广东天元实业集团股份有限公司 | Aobvious blue thermal label of a kind of bottom and preparation method thereof |
| CN110714362A (en) * | 2019-11-19 | 2020-01-21 | 广东简彩纸业科技有限公司 | Anti-static heat-insulation thermal sensitive paper |
-
2020
- 2020-05-26 CN CN202010460597.3A patent/CN111809442A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429302A (en) * | 2000-05-15 | 2003-07-09 | 斯托拉恩索公司 | Paper or paperboard laminate and method of producing such laminate |
| CN1472390A (en) * | 2003-02-17 | 2004-02-04 | 惠州志豪特种纸业有限公司 | Heat sensitive paper |
| CN109910458A (en) * | 2017-12-13 | 2019-06-21 | 江苏万宝瑞达高新技术有限公司 | A kind of three proofings heat-sensitive paper promoting printed patterns clarity |
| CN110379293A (en) * | 2019-07-18 | 2019-10-25 | 广东天元实业集团股份有限公司 | Aobvious blue thermal label of a kind of bottom and preparation method thereof |
| CN110714362A (en) * | 2019-11-19 | 2020-01-21 | 广东简彩纸业科技有限公司 | Anti-static heat-insulation thermal sensitive paper |
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Application publication date: 20201023 |