CN111849374A - Heat-sensitive paper label with good waterproof and sun-proof performance and manufacturing method thereof - Google Patents

Heat-sensitive paper label with good waterproof and sun-proof performance and manufacturing method thereof Download PDF

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CN111849374A
CN111849374A CN202010460601.6A CN202010460601A CN111849374A CN 111849374 A CN111849374 A CN 111849374A CN 202010460601 A CN202010460601 A CN 202010460601A CN 111849374 A CN111849374 A CN 111849374A
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layer
waterproof
microstructure
ultraviolet
thermal
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罗耀东
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Guangdong Tengen Industrial Group Co ltd
Hunan Tianqi Wisdom Printing Co ltd
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Guangdong Tengen Industrial Group Co ltd
Hunan Tianqi Wisdom Printing Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • 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
    • D21H27/001—Release paper
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/334—Applications of adhesives in processes or use of adhesives in the form of films or foils as a label
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/28—Presence of paper
    • C09J2400/283—Presence of paper in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0257—Multilayer

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

The invention provides a thermal paper label with good waterproof and sun-proof performances and a manufacturing method thereof, the thermal paper label with good waterproof and sun-proof performances is formed by laminating a release layer, an adhesive layer, a base material layer, a thermal color development layer, a waterproof layer, an ultraviolet-resistant layer and a protective layer from bottom to top, the release layer and the adhesive layer can realize the self-uncovering and sticking performance of the thermal paper label, so that the thermal paper label can be firmly and durably stuck according to the actual application requirement, and the waterproof layer and the ultraviolet-resistant layer can prevent the thermal paper label from being corroded by external environment water vapor and ultraviolet rays in the logistics process, thereby effectively avoiding the situation that the thermal paper label is subjected to humidity and ultraviolet irradiation light degradation, improving the thermal display performance of the thermal paper label and prolonging the service life of the thermal paper label.

Description

Heat-sensitive paper label with good waterproof and sun-proof performance and manufacturing method thereof
Technical Field
The invention relates to the technical field of thermosensitive paper labels, in particular to a thermosensitive paper label with good waterproof and sun-proof performances 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 has wide application, and can be applied to different occasions such as bills, labels and the like. At present, the thermal paper is often used as a label of logistics, and in practical application, the thermal paper is directly adhered to corresponding goods through glue, so that the logistics label is realized, and the goods can be influenced by the external environment in the logistics transportation process to cause the falling or damage of the thermal paper, so that the normal use of the thermal paper label can be influenced. It can be seen that the prior art thermal paper label cannot maintain stable adhesion performance and achieve corresponding waterproof and fade-proof effects during logistics storage or transportation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the thermal paper label with better waterproof and sun-proof performances, the thermal paper label with better waterproof and sun-proof performances is formed by laminating a release layer, an adhesive layer, a base material layer, a thermal color development layer, a waterproof layer, an ultraviolet-resistant layer and a protective layer from bottom to top, the release layer and the adhesive layer can realize the self-uncovering and sticking performance of the thermal paper label, so that the thermal paper label can be stably and durably stuck according to the actual application requirement, and the waterproof layer and the ultraviolet-resistant layer can prevent the thermal paper label from being corroded by external environment water vapor and ultraviolet rays in the logistics process, so that the condition that the thermal paper label is subjected to humidity and ultraviolet irradiation light degradation is effectively avoided, the thermal display performance of the thermal paper label is improved, and the service life of the thermal paper label is prolonged.
The invention provides a thermal sensitive paper label with better waterproof and sun-proof performances, which is characterized in that:
the thermal sensitive paper label with good waterproof and sun-proof performances comprises a release layer, an adhesive layer, a base material layer, a thermal sensitive color development layer, a waterproof layer, an ultraviolet-resistant layer and a protective layer which are sequentially stacked from bottom to top; wherein the content of the first and second substances,
the release layer is formed by a base paper fiber-polyester layer with a composite structure;
The adhesive glue layer is arranged between the release layer and the substrate layer so as to realize the repeated adhesion of the release layer and the substrate layer;
the base material layer is formed by a base paper fiber layer with a composite structure;
the heat-sensitive color development layer is formed by heat-sensitive color development coating coated on the substrate layer;
the waterproof layer is formed by a hydrophobic material or a waterproof microstructure which is arranged on the thermosensitive color development layer;
the ultraviolet-resistant layer is formed by ultraviolet absorption materials or ultraviolet reflection increasing materials arranged on the waterproof layer;
the protective layer is formed of a sealing material disposed on the ultraviolet resistant layer;
further, in the release layer, the base paper fiber-polyester layer with the composite structure comprises a single layer of base paper fiber and a single layer of polyester covering the single layer of base paper fiber; wherein the content of the first and second substances,
the single-layer fiber comprises a plurality of first fiber units extending along the longitude direction and a plurality of second fiber units extending along the latitude direction, wherein the first fiber units and the second fiber units are arranged in a staggered mode;
further, in the release layer, the thickness of the single-layer base paper fiber is less than or equal to that of the single-layer polyester;
The bottom surface of the single-layer base paper fiber is also coated with inorganic silicone oil;
further, the adhesive layer is made of polyacrylic acid pressure-sensitive adhesive or water-based peelable solid adhesive;
alternatively, the first and second electrodes may be,
the adhesive glue layer is arranged along the peripheral edge area of the release layer, and the area of the surface area corresponding to the adhesive glue layer is not more than 50% of the area of the surface corresponding to the release layer;
further, in the base material layer, the base paper fiber layer with the composite structure comprises a first base paper fiber film and a second base paper fiber film arranged on the first base paper fiber film;
the thickness of the first base paper fiber film is larger than that of the second base paper fiber film;
the first base paper fiber film and the second base paper fiber film are superposed in a pressing mode;
further, in the heat-sensitive color developing layer, the heat-sensitive color developing coating comprises an organic solvent, heat-sensitive color developing particles, a dispersing agent, a developer, a stabilizer and an antioxidant which are mixed to form the heat-sensitive color developing coating; wherein the content of the first and second substances,
the weight ratio of the organic solvent to the thermosensitive color developing particles to the dispersing agent to the color developing agent to the stabilizing agent to the antioxidant is 35-65: 15-25: 1-3: 1-3: 0.5-: 0.5 to 1;
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, the stabilizing agent and the antioxidant at the temperature of 20-30 ℃;
further, in the heat-sensitive color development layer, after the heat-sensitive color development coating is coated, a migration isolation film is further arranged on the surface of the heat-sensitive color development coating and used for preventing the heat-sensitive color development coating from migrating to the waterproof layer;
the migration separation film is formed of a resin material mutually insoluble with the heat-sensitive color developing coating;
further, in the waterproof layer, the hydrophobic material is formed by dispersing and mixing hydrophobic inorganic particles in polyester resin;
alternatively, the first and second electrodes may be,
in the waterproof layer, the waterproof microstructure is formed by performing a pressing action on polyester resin vertical to the surface of the thermosensitive paper label;
alternatively, the first and second electrodes may be,
in the ultraviolet-resistant layer, the ultraviolet absorbing material is formed by dispersing ultraviolet absorbing particles in a resin matrix;
alternatively, the first and second electrodes may be,
in the ultraviolet-resistant layer, the ultraviolet-ray-reflection-increasing material is formed by arranging an ultraviolet-ray reflection-increasing film on the surface of a resin matrix;
Alternatively, the first and second electrodes may be,
in the protective layer, the sealing material includes a grease-resistant material and a scratch-resistant material; wherein the content of the first and second substances,
the grease-resistant material and the scratch-resistant material are stacked in layers from bottom to top, thereby forming the protection;
further, the process of the waterproof layer formed by the waterproof microstructure arranged on the heat-sensitive color development layer is specifically that according to the high-density molecular information in the waterproof microstructure, the optimal waterproof triangular fluid structure information is obtained, the structural gap area corresponding to the optimal waterproof triangular fluid with the minimum three-dimensional is calculated, and then the operation of constructing the multi-level three-dimensional high-density waterproof molecular microstructure is executed, and the specific implementation process is as follows,
step S1, obtaining high-density molecular information F (w, l) in the waterproof microstructure through the following formula (1)
Figure BDA0002508838490000041
Wherein pi is a circumference ratio, e is a natural constant, N is the number of high-density molecules in the waterproof microstructure, i is the number of molecular bonds of the high-density molecules, and w is 1cm2The area ratio of the waterproof microstructures in the unit area of the heat-sensitive paper, f (w) is 1cm2The volume ratio of the waterproof microstructures in the unit area of the thermal sensitive paper, wherein l is the length of each side corresponding to each waterproof microstructure;
step S2, according to the high-density molecular information F (w, l) in the waterproof microstructure obtained in the step S1, data modeling processing is carried out through the following formula (2), and therefore the optimal waterproof triangular fluid structure information V is obtained k：
Figure BDA0002508838490000042
Wherein ln is a logarithmic function with a constant e as a base, j is the 1cm2Heat per unit areaThe number of the waterproof triangular fluid microstructures in the sensitive paper, M is 1cm2The volume of the waterproof triangular fluid microstructure in the unit area of the thermal sensitive paper is 1cm, and k is2The cumulative gap area of the waterproof triangular fluid microstructure in the unit area of the thermal paper,
Figure BDA0002508838490000051
for calculating the minimum gap difference, V, of the waterproof triangular fluid structurekObtaining optimal waterproof triangular fluid structure information;
step S3, obtaining the optimal waterproof triangular fluid structure information V obtained in the step S2kPerforming multilayer three-dimensional modeling, performing iterative limit convergence processing according to the following formula (3) to obtain the minimum three-dimensional waterproof triangular fluid structure gap area, and determining whether to execute the operation of constructing the multilayer three-dimensional high-density molecular waterproof microstructure
Figure BDA0002508838490000052
In the formula (3), d is the gap difference between the waterproof layer and the ultraviolet-resistant layer, s is the accumulated gap area of each plane of the three-dimensional high-density molecular waterproof microstructure,
Figure BDA0002508838490000053
when the value of T(s) is close to 0, the current three-dimensional high-density molecular waterproof microstructure has a good waterproof effect, and the operation of constructing a multi-layer three-dimensional high-density molecular waterproof microstructure is executed.
The invention also provides a manufacturing method of the thermal sensitive paper label with better waterproof and sun-proof performances, which is characterized by comprising the following steps: the thermal sensitive paper label with good waterproof and sun-proof performances comprises a release layer, an adhesive layer, a base material layer, a thermal sensitive color development layer, a waterproof layer, an ultraviolet-resistant layer and a protective layer which are sequentially stacked from bottom to top, and the manufacturing method of the thermal sensitive paper label with good waterproof and sun-proof performances comprises the following steps:
step T1, forming a release layer by the base paper fiber-polyester layer with a composite structure;
step T2, arranging the adhesive glue layer between the release layer and the substrate layer to realize the repeated adhesion of the release layer and the substrate layer;
step T3, forming a base material layer by the base paper fiber layer with the composite structure;
step T4, coating a thermosensitive color developing coating on the substrate layer to form the thermosensitive color developing layer;
step T5, arranging a hydrophobic material or a waterproof microstructure on the heat-sensitive color development layer to form the waterproof layer, wherein the waterproof microstructure is arranged on the heat-sensitive color development layer to form the waterproof layer in a process of specifically obtaining optimal waterproof triangular fluid structure information according to the high-density molecular information in the waterproof microstructure, calculating the structural gap area corresponding to the optimal waterproof triangular fluid with the minimum three-dimensional structure, and then executing the operation of constructing the multi-layer three-dimensional high-density waterproof molecular microstructure, the specific implementation process is as follows, step T501, and the high-density molecular information F (w, l) in the waterproof microstructure is obtained through the following formula (1)
Figure BDA0002508838490000061
Wherein pi is a circumference ratio, e is a natural constant, N is the number of high-density molecules in the waterproof microstructure, i is the number of molecular bonds of the high-density molecules, and w is 1cm2The area ratio of the waterproof microstructures in the unit area of the heat-sensitive paper, f (w) is 1cm2The volume ratio of the waterproof microstructures in the unit area of the thermal sensitive paper, wherein l is the length of each side corresponding to each waterproof microstructure;
step T502, according to the high-density molecular information F (w, l) in the waterproof microstructure obtained in the step T501, performing data modeling processing through the following formula (2) to obtain the optimal waterproof triangular fluid structure information Vk：
Figure BDA0002508838490000062
Wherein ln is a logarithmic function with a constant e as a base, j is the 1cm2The number of the waterproof triangular fluid microstructures in the unit area of the thermal sensitive paper, M is 1cm2The volume of the waterproof triangular fluid microstructure in the unit area of the thermal sensitive paper is 1cm, and k is2The cumulative gap area of the waterproof triangular fluid microstructure in the unit area of the thermal paper,
Figure BDA0002508838490000063
for calculating the minimum gap difference, V, of the waterproof triangular fluid structurekObtaining optimal waterproof triangular fluid structure information;
step T503, the optimal waterproof triangular fluid structure information V obtained in the step T502 is processedkPerforming multilayer three-dimensional modeling, performing iterative limit convergence processing according to the following formula (3) to obtain the minimum three-dimensional waterproof triangular fluid structure gap area, and determining whether to execute the operation of constructing the multilayer three-dimensional high-density molecular waterproof microstructure
Figure BDA0002508838490000071
In the formula (3), d is the gap difference between the waterproof layer and the ultraviolet-resistant layer, s is the accumulated gap area of each plane of the three-dimensional high-density molecular waterproof microstructure,
Figure BDA0002508838490000072
when the value of T(s) approaches to 0, the current three-dimensional high-density molecular waterproof microstructure has a good waterproof effect, and the operation of constructing a multi-layer three-dimensional high-density molecular waterproof microstructure is executed;
step T6, arranging an ultraviolet absorption material or an ultraviolet reflection increasing material on the waterproof layer to form the ultraviolet-resistant layer;
and a step T7 of disposing a sealing material on the anti-ultraviolet layer to form the protective layer.
Compared with the prior art, this better temperature-sensitive paper label of waterproof sun-proof performance is through with the type-off layer, the adhesive layer, the substrate layer, temperature-sensitive color development layer, the waterproof layer, anti ultraviolet layer and protective layer are by lower supreme range upon range of setting, this can realize the self-opening adhesion nature of temperature-sensitive paper label from type-off layer and this adhesive layer, so that this temperature-sensitive paper label can stabilize and lasting pasting according to the practical application demand, this waterproof layer and this anti ultraviolet layer can avoid this temperature-sensitive paper label to receive external environment steam and ultraviolet's erosion at the commodity circulation in-process, thereby avoid this temperature-sensitive paper label to take place the condition of humidity and the degradation of ultraviolet irradiation light effectively, thereby improve the temperature-sensitive display performance of temperature-sensitive paper label and prolong its 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 thermal sensitive paper label with good waterproof and sun-proof performances provided by the 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.
Referring to fig. 1, a schematic structural diagram of a thermal paper label with good waterproof and sun-proof performance according to an embodiment of the present invention is shown. The thermal sensitive paper label with good waterproof and sun-proof performances comprises a release layer, an adhesive layer, a base material layer, a thermal sensitive color development layer, a waterproof layer, an ultraviolet-resistant layer and a protective layer which are sequentially stacked from bottom to top; wherein the content of the first and second substances,
the release layer is formed by a base paper fiber-polyester layer with a composite structure;
the adhesive glue layer is arranged between the release layer and the substrate layer so as to realize the repeated adhesion of the release layer and the substrate layer;
the base material layer is formed by a base paper fiber layer with a composite structure;
the heat-sensitive color development layer is formed by heat-sensitive color development coating coated on the substrate layer;
the waterproof layer is formed by hydrophobic materials or waterproof microstructures arranged on the thermosensitive color development layer;
the ultraviolet-resistant layer is formed by ultraviolet absorption materials or ultraviolet reflection increasing materials arranged on the waterproof layer;
the protective layer is formed of a sealing material disposed on the ultraviolet resistant layer.
The thermosensitive paper label with better waterproof and sun-proof performances can ensure that the thermosensitive paper label has adhesiveness by sequentially arranging the adhesive layer and the release layer on the bottom surface of the substrate layer, so that the thermosensitive paper label can be conveniently adhered to different logistics objects according to actual needs, the release film can effectively protect the adhesive layer, and the release layer is uncovered from the thermosensitive paper label only when the thermosensitive paper label is required to be adhered, so that the adhesive layer is prevented from being polluted by the external environment and losing adhesiveness; in addition, the waterproof layer and the ultraviolet-resistant layer can effectively isolate water vapor and ultraviolet rays, so that the situation that the thermosensitive color development layer is corroded by the water vapor and the ultraviolet rays to cause color development degradation is avoided, and the waterproof and sun-proof performance of the thermosensitive paper label is realized.
Preferably, in the release layer, the base paper fiber-polyester layer with the composite structure comprises a single layer of base paper fiber and a single layer of polyester covering the base paper fiber; wherein the content of the first and second substances,
the single-layer fiber comprises a plurality of first fiber units extending along the longitude direction and a plurality of second fiber units extending along the latitude direction, wherein the first fiber units and the second fiber units are arranged in a staggered mode.
Through establishing into including the individual layer paper fibre with the individual layer polyester composite construction who constitutes jointly from the type layer this, can improve this toughness and the anti warpage nature from the type layer effectively to guarantee this from the type layer can combine with this bonding glue film firmly and avoid this from the type layer to take place from the condition of warpage in order to lead to this bonding glue film to expose in external environment.
Preferably, in the release layer, the thickness of the single layer base paper fiber is less than or equal to the thickness of the single layer polyester;
the bottom surface of the single-layer base paper fiber is also coated with inorganic silicone oil.
The bonding stability and the tear resistance of the single-layer paper fiber and the single-layer polyester in the release layer can be improved by setting the thickness of the single-layer base paper fiber to be less than or equal to that of the single-layer polyester; in addition, coating inorganic silicone oil on the bottom surface of the single-layer base paper fiber can further improve the peeling easiness of the release layer.
Preferably, the adhesive layer is made of polyacrylic acid pressure sensitive adhesive or water-based peelable solid adhesive.
The adhesive layer is made of polyacrylic acid pressure-sensitive adhesive or water-based peelable solid adhesive, so that the self-adhesive durability of the adhesive layer can be effectively improved, and the production cost of the adhesive layer can be reduced.
Preferably, the adhesive glue layer is arranged along the peripheral edge region of the release layer, and the area of the surface region corresponding to the adhesive glue layer is not more than 50% of the area of the surface corresponding to the release layer.
The surface area of the adhesive glue layer is smaller than that of the release layer, so that the self-adhesive strength of the adhesive glue layer can be enhanced while the using amount of the adhesive glue in the adhesive glue layer is reduced to the maximum extent.
Preferably, in the substrate layer, the raw paper fiber layer with the composite structure comprises a first raw paper fiber film and a second raw paper fiber film arranged on the first raw paper fiber film;
the thickness of the first base paper fiber film is larger than that of the second base paper fiber film;
the first base paper fiber film and the second base paper fiber film are superposed in a pressing mode.
The base material layer is arranged into a composite structure formed by the first raw paper fiber film and the second raw paper fiber film, so that the toughness and the tear resistance of the base material layer can be effectively improved, and the situation of permeation and leakage of the base material layer is avoided.
Preferably, in the thermosensitive color developing layer, the thermosensitive color developing coating includes an organic solvent, thermosensitive color developing particles, a dispersant, a developer, a stabilizer, and an antioxidant; wherein the content of the first and second substances,
the weight ratio of the organic solvent, the thermosensitive color developing particles, the dispersant, the color developing agent, the stabilizer and the antioxidant is 35-65: 15-25: 1-3: 1-3: 0.5-: 0.5 to 1;
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, the stabilizing 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, in the heat-sensitive color developing layer, after the heat-sensitive color developing coating is coated, a migration barrier film is further provided on the surface of the heat-sensitive color developing coating, and the migration barrier film is used for blocking the heat-sensitive color developing coating from migrating into the waterproof layer;
the migration isolation film is formed of a resin material mutually insoluble with the heat-sensitive color developing coating.
The migration isolation film can effectively prevent the thermosensitive color developing coating in the thermosensitive color developing layer from permeating into the waterproof layer through the migration diffusion process, thereby ensuring the stability and normal color development of the thermosensitive color developing layer.
Preferably, in the water repellent layer, the water repellent material is formed by dispersing and mixing water repellent inorganic particles in a polyester resin.
The waterproof layer is formed by dispersing and mixing hydrophobic inorganic particles in the polyester resin, so that the manufacturing cost and difficulty of the waterproof layer are reduced, and the waterproof performance of the thermal paper is improved to the maximum extent.
Preferably, in the waterproof layer, the waterproof microstructure is formed by pressing the polyester resin perpendicularly to the surface of the thermal paper label.
The waterproof microstructure is designed to perform a pressing effect on the polyester resin perpendicular to the surface of the thermosensitive paper label to form an internal laminated structure capable of effectively preventing external environment water vapor from permeating into the thermosensitive paper label.
Preferably, in the ultraviolet resistant layer, the ultraviolet absorbing material is formed by dispersing ultraviolet absorbing particles in a resin matrix.
The ultraviolet ray resistant layer formed by dispersing ultraviolet ray absorbing particles in a resin matrix can maximally absorb ultraviolet ray components in external environment light.
Preferably, in the ultraviolet-resistant layer, the ultraviolet-ray reflection increasing material is formed by disposing an ultraviolet-ray reflection increasing film on the surface of the resin substrate.
The ultraviolet ray resistant layer formed by disposing the ultraviolet ray reflection increasing film on the surface of the resin substrate can reflect the ultraviolet ray component in the external environment light to the maximum.
Preferably, in the protective layer, the sealing material includes a grease-resistant material and a scratch-resistant material; wherein the grease-resistant material and the scratch-resistant material are layered and stacked from bottom to top to form the protective layer.
The oil resistance and the scratch resistance of the thermal paper label can be improved by sequentially laminating the grease-resistant material and the scratch-resistant material from bottom to top to form the protective layer, so that the thermal paper label is prevented from being polluted by grease from an operator and being damaged by scratches in the operation process.
Preferably, the process of the waterproof layer formed by the waterproof microstructure disposed on the heat-sensitive color development layer is specifically, according to the high-density molecular information in the waterproof microstructure, obtaining the optimal waterproof triangular fluid structure information, calculating the structural gap area corresponding to the optimal waterproof triangular fluid with the minimum three-dimensional structure, and then performing the operation of constructing the multi-level three-dimensional high-density waterproof molecular microstructure, and the specific implementation process is as follows,
step S1, obtaining high-density molecular information F (w, l) in the waterproof microstructure through the following formula (1)
Figure BDA0002508838490000121
In the above formula (1), π is the circumference ratio, e is the natural constant, N is the number of high-density molecules in the waterproof microstructure, i is the number of molecular bonds of the high-density molecules, w is 1cm2The area ratio of the waterproof microstructures in the unit area of the heat-sensitive paper, f (w) is 1cm2The volume ratio of the waterproof microstructures in the unit area of the thermal sensitive paper, wherein l is the length of each side corresponding to each waterproof microstructure;
step S2, according to the high-density molecular information F (w, l) in the waterproof microstructure obtained in the step S1, data modeling processing is carried out through the following formula (2), and therefore the optimal waterproof triangular fluid structure information V is obtainedk
Figure BDA0002508838490000122
In the above formula (2), ln is a logarithmic function based on a natural constant e, and j is 1cm2The number of waterproof triangular fluid structures in the thermal paper per unit area is 1cm2Waterproof triangular fluid structure in unit area thermal paperK is 1cm2The cumulative gap area of the waterproof triangular fluid structure in the unit area of the thermal paper,
Figure BDA0002508838490000123
calculating the minimum gap difference of the waterproof triangular fluid structure;
step S3, obtaining the optimal waterproof triangular fluid structure information V of the step S2kPerforming multilayer three-dimensional modeling, performing iterative limit convergence processing according to the following formula (3) to obtain the minimum three-dimensional waterproof triangular fluid structure gap area, and determining whether to execute the operation of constructing the multilayer three-dimensional high-density molecular waterproof microstructure
Figure BDA0002508838490000124
In the above formula (3), d is the gap difference between the waterproof layer and the anti-ultraviolet layer, s is the cumulative gap area of each plane of the three-dimensional high-density molecular waterproof microstructure,
Figure BDA0002508838490000131
when the value of T(s) is close to 0, the current three-dimensional high-density molecular waterproof microstructure has a good waterproof effect, and the operation of constructing a multi-layer three-dimensional high-density molecular waterproof microstructure is executed.
The process of forming the waterproof layer by the waterproof microstructure on the heat-sensitive color development layer can ensure the waterproof sealing performance of the waterproof microstructure to the maximum extent, and can provide targeted technical guidance on waterproof fluidics for the structure of the waterproof layer, thereby realizing the optimization of the waterproof performance of the waterproof layer.
In addition, the embodiment of the invention also provides a manufacturing method of the thermal paper label with better waterproof and sun-proof performances, which is characterized in that: the thermal sensitive paper label with good waterproof and sun-proof performances comprises a release layer, an adhesive layer, a base material layer, a thermal sensitive color development layer, a waterproof layer, an ultraviolet-resistant layer and a protective layer which are sequentially stacked from bottom to top, and the manufacturing method of the thermal sensitive paper label with good waterproof and sun-proof performances comprises the following steps:
Step T1, forming a release layer by the base paper fiber-polyester layer with a composite structure;
step T2, arranging the adhesive glue layer between the release layer and the substrate layer to realize the repeated adhesion of the release layer and the substrate layer;
step T3, forming a base material layer by the base paper fiber layer with the composite structure;
step T4, coating the heat-sensitive color developing coating on the substrate layer to form the heat-sensitive color developing layer;
step T5, arranging a hydrophobic material or a waterproof microstructure on the heat-sensitive color development layer to form the waterproof layer, wherein the process of arranging the waterproof microstructure on the heat-sensitive color development layer to form the waterproof layer is specifically to obtain the optimal waterproof triangular fluid structure information according to the high-density molecular information in the waterproof microstructure, calculate the structural gap area corresponding to the optimal waterproof triangular fluid with the minimum three-dimensional structure, and then execute the operation of constructing a multi-layer three-dimensional high-density waterproof molecular microstructure, and the specific implementation process is as follows,
step T501, obtaining high-density molecular information F (w, l) in the waterproof microstructure through the following formula (1)
Figure BDA0002508838490000141
Wherein pi is a circumference ratio, e is a natural constant, N is the number of high-density molecules in the waterproof microstructure, i is the number of molecular bonds of the high-density molecules, and w is 1cm 2The area ratio of the waterproof microstructures in the unit area of the heat-sensitive paper, f (w) is 1cm2The volume ratio of the waterproof microstructures in the unit area of the thermal sensitive paper, wherein l is the length of each side corresponding to each waterproof microstructure;
step T502, obtaining the information F (w, l) of the high-density molecules in the waterproof microstructure according to the step T501, and obtaining the information through the following formula (2) Carrying out data modeling processing to obtain optimal waterproof triangular fluid structure information Vk：
Figure BDA0002508838490000142
Wherein ln is a logarithmic function with a constant e as a base, j is the 1cm2The number of the waterproof triangular fluid microstructures in the unit area of the thermal sensitive paper, M is 1cm2The volume of the waterproof triangular fluid microstructure in the unit area of the thermal sensitive paper is 1cm, and k is2The cumulative gap area of the waterproof triangular fluid microstructure in the unit area of the thermal paper,
Figure BDA0002508838490000143
for calculating the minimum gap difference, V, of the waterproof triangular fluid structurekObtaining optimal waterproof triangular fluid structure information;
step T503, the optimal waterproof triangular fluid structure information V obtained in the step T502 is processedkPerforming multilayer three-dimensional modeling, performing iterative limit convergence processing according to the following formula (3) to obtain the minimum three-dimensional waterproof triangular fluid structure gap area, and determining whether to execute the operation of constructing the multilayer three-dimensional high-density molecular waterproof microstructure
Figure BDA0002508838490000144
In the formula (3), d is the gap difference between the waterproof layer and the ultraviolet-resistant layer, s is the accumulated gap area of each plane of the three-dimensional high-density molecular waterproof microstructure,
Figure BDA0002508838490000151
when the value of T(s) approaches to 0, the current three-dimensional high-density molecular waterproof microstructure has good waterproof effect, and multi-layer three-dimensional high-density molecular waterproof microstructure is constructedOperation of the molecular waterproof microstructure;
step T6, arranging an ultraviolet absorption material or an ultraviolet reflection increasing material on the waterproof layer to form the ultraviolet resistant layer;
in step T7, a sealing material is disposed on the uv-resistant layer to form the protection layer.
From the content of the above embodiment, the thermal paper label with better waterproof and sun-proof performance is formed by stacking the release layer, the adhesive layer, the substrate layer, the thermal color development layer, the waterproof layer, the ultraviolet-resistant layer and the protective layer from bottom to top, and the release layer and the adhesive layer can realize the self-uncovering and sticking performance of the thermal paper label so that the thermal paper label can be stably and durably stuck according to the actual application requirement, and the waterproof layer and the ultraviolet-resistant layer can avoid the thermal paper label from being corroded by external environment water vapor and ultraviolet rays in the logistics process, thereby effectively avoiding the situation that the thermal paper label is subjected to humidity and ultraviolet irradiation light degradation, improving the thermal display performance of the thermal paper label and prolonging the service life of the thermal paper label.
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. The heat-sensitive paper label with better waterproof and sun-proof performances is characterized in that:
the thermal sensitive paper label with good waterproof and sun-proof performances comprises a release layer, an adhesive layer, a base material layer, a thermal sensitive color development layer, a waterproof layer, an ultraviolet-resistant layer and a protective layer which are sequentially stacked from bottom to top; wherein the content of the first and second substances,
the release layer is formed by a base paper fiber-polyester layer with a composite structure;
the adhesive glue layer is arranged between the release layer and the substrate layer so as to realize the repeated adhesion of the release layer and the substrate layer;
the base material layer is formed by a base paper fiber layer with a composite structure;
the heat-sensitive color development layer is formed by heat-sensitive color development coating coated on the substrate layer;
the waterproof layer is formed by a hydrophobic material or a waterproof microstructure which is arranged on the thermosensitive color development layer;
the ultraviolet-resistant layer is formed by ultraviolet absorption materials or ultraviolet reflection increasing materials arranged on the waterproof layer;
The protective layer is formed of a sealing material disposed on the ultraviolet resistant layer.
2. The thermal paper label with better waterproof and sun-proof performances as claimed in claim 1, is characterized in that:
in the release layer, the base paper fiber-polyester layer with the composite structure comprises single-layer base paper fibers and single-layer polyester covering the single-layer base paper fibers; wherein the content of the first and second substances,
the single-layer fiber comprises a plurality of first fiber units extending along the longitude direction and a plurality of second fiber units extending along the latitude direction, wherein the first fiber units and the second fiber units are arranged in a staggered mode.
3. The thermal paper label with better waterproof and sun-proof performances as claimed in claim 2, characterized in that:
in the release layer, the thickness of the single-layer base paper fiber is less than or equal to that of the single-layer polyester;
the bottom surface of the single-layer base paper fiber is also coated with inorganic silicone oil.
4. The thermal paper label with better waterproof and sun-proof performances as claimed in claim 1, is characterized in that:
the adhesive layer is made of polyacrylic acid pressure-sensitive adhesive or water-based peelable solid adhesive;
alternatively, the first and second electrodes may be,
the adhesive glue layer is arranged along the peripheral edge area of the release layer, and the area of the surface area corresponding to the adhesive glue layer is not more than 50% of the area of the surface corresponding to the release layer.
5. The thermal paper label with better waterproof and sun-proof performances as claimed in claim 1, is characterized in that:
in the base material layer, the base paper fiber layer with the composite structure comprises a first base paper fiber film and a second base paper fiber film arranged on the first base paper fiber film;
the thickness of the first base paper fiber film is larger than that of the second base paper fiber film;
the first base paper fiber film and the second base paper fiber film are overlapped in a pressing mode to form the base paper fiber film.
6. The thermal paper label with better waterproof and sun-proof performances as claimed in claim 1, is characterized in that:
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 development agent, a stabilizing agent and an antioxidant which are mixed to form the heat-sensitive color development coating; wherein the content of the first and second substances,
the weight ratio of the organic solvent to the thermosensitive color developing particles to the dispersing agent to the color developing agent to the stabilizing agent to the antioxidant is 35-65: 15-25: 1-3: 1-3: 0.5-: 0.5 to 1;
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, the stabilizing agent and the antioxidant at the temperature of 20-30 ℃.
7. The thermal paper label with better waterproof and sun-proof performances as claimed in claim 6, characterized in that:
in the heat-sensitive color development layer, after the heat-sensitive color development coating is coated, a migration isolation film is further arranged on the surface of the heat-sensitive color development coating and used for preventing the heat-sensitive color development coating from migrating to the waterproof layer;
the migration isolation film is formed of a resin material mutually insoluble with the heat-sensitive color developing coating.
8. The thermal paper label with better waterproof and sun-proof performances as claimed in claim 1, is characterized in that:
in the waterproof layer, the hydrophobic material is formed by dispersing and mixing hydrophobic inorganic particles in polyester resin;
alternatively, the first and second electrodes may be,
in the waterproof layer, the waterproof microstructure is formed by performing a pressing action on polyester resin vertical to the surface of the thermosensitive paper label;
alternatively, the first and second electrodes may be,
in the ultraviolet-resistant layer, the ultraviolet absorbing material is formed by dispersing ultraviolet absorbing particles in a resin matrix;
alternatively, the first and second electrodes may be,
in the ultraviolet-resistant layer, the ultraviolet-ray-reflection-increasing material is formed by arranging an ultraviolet-ray reflection-increasing film on the surface of a resin matrix;
Alternatively, the first and second electrodes may be,
in the protective layer, the sealing material includes a grease-resistant material and a scratch-resistant material; wherein the content of the first and second substances,
the grease-resistant material and the scratch-resistant material are stacked in layers from bottom to top, thereby forming the protective layer.
9. The thermal paper label with better waterproof and sun-proof performances as claimed in claim 1, is characterized in that:
the process of the waterproof layer formed by the waterproof microstructure arranged on the heat-sensitive color development layer is specifically that according to the high-density molecular information in the waterproof microstructure, optimal waterproof triangular fluid structure information is obtained, the structural gap area corresponding to the optimal waterproof triangular fluid with the minimum three-dimensional structure is calculated, and then the operation of constructing the multi-level three-dimensional high-density waterproof molecular microstructure is executed, and the specific implementation process is as follows:
step S1, obtaining high-density molecular information F (w, l) in the waterproof microstructure through the following formula (1)
Figure FDA0002508838480000041
Wherein pi is a circumference ratio, e is a natural constant, N is the number of high-density molecules in the waterproof microstructure, i is the number of molecular bonds of the high-density molecules, and w is 1cm2The area ratio of the waterproof microstructures in the unit area of the heat-sensitive paper, f (w) is 1cm2The volume ratio of the waterproof microstructures in the unit area of the thermal sensitive paper, wherein l is the length of each side corresponding to each waterproof microstructure;
Step S2, according to the high-density molecular information F (w, l) in the waterproof microstructure obtained in the step S1, data modeling processing is carried out through the following formula (2), and therefore the optimal waterproof triangular fluid structure information V is obtainedk：
Figure FDA0002508838480000042
Wherein ln is a logarithmic function with a constant e as a base, j is the 1cm2The number of the waterproof triangular fluid microstructures in the unit area of the thermal sensitive paper, M is 1cm2The volume of the waterproof triangular fluid microstructure in the unit area of the thermal sensitive paper is 1cm, and k is2The cumulative gap area of the waterproof triangular fluid microstructure in the unit area of the thermal paper,
Figure FDA0002508838480000043
for calculating the minimum gap difference, V, of the waterproof triangular fluid structurekObtaining optimal waterproof triangular fluid structure information;
step S3, obtaining the optimal waterproof triangular fluid structure information V obtained in the step S2kPerforming multilayer three-dimensional modeling, performing iterative limit convergence processing according to the following formula (3) to obtain the minimum three-dimensional waterproof triangular fluid structure gap area, and determining whether to execute the operation of constructing the multilayer three-dimensional high-density molecular waterproof microstructure
Figure FDA0002508838480000044
In the formula (3), d is the gap difference between the waterproof layer and the ultraviolet-resistant layer, s is the accumulated gap area of each plane of the three-dimensional high-density molecular waterproof microstructure,
Figure FDA0002508838480000051
When the value of T(s) is close to 0, the current three-dimensional high-density molecular waterproof microstructure has a good waterproof effect, and the operation of constructing a multi-layer three-dimensional high-density molecular waterproof microstructure is executed.
10. The method for manufacturing the thermal paper label with good waterproof and sun-proof performances, which is disclosed by claim 1, is characterized by comprising the following steps of: the thermal sensitive paper label with good waterproof and sun-proof performances comprises a release layer, an adhesive layer, a base material layer, a thermal sensitive color development layer, a waterproof layer, an ultraviolet-resistant layer and a protective layer which are sequentially stacked from bottom to top, and the manufacturing method of the thermal sensitive paper label with good waterproof and sun-proof performances comprises the following steps:
step T1, forming a release layer by the base paper fiber-polyester layer with a composite structure;
step T2, arranging the adhesive glue layer between the release layer and the substrate layer to realize the repeated adhesion of the release layer and the substrate layer;
step T3, forming a base material layer by the base paper fiber layer with the composite structure;
Step T4, coating a thermosensitive color developing coating on the substrate layer to form the thermosensitive color developing layer;
step T5, arranging a hydrophobic material or a waterproof microstructure on the heat-sensitive color development layer to form the waterproof layer, wherein the waterproof microstructure is arranged on the heat-sensitive color development layer to form the waterproof layer specifically by obtaining optimal waterproof triangular fluid structure information according to the high-density molecular information in the waterproof microstructure, calculating the structural gap area corresponding to the optimal waterproof triangular fluid with the minimum three-dimensional structure, and then executing the operation of constructing a multi-layer three-dimensional high-density waterproof molecular microstructure, the specific implementation process is as follows,
step T501, obtaining high-density molecular information F (w, l) in the waterproof microstructure through the following formula (1)
Figure FDA0002508838480000061
Wherein pi is a circumference ratio, e is a natural constant, N is the number of high-density molecules in the waterproof microstructure, i is the number of molecular bonds of the high-density molecules, and w is 1cm2The area ratio of the waterproof microstructures in the unit area of the heat-sensitive paper, f (w) is 1cm2The volume ratio of the waterproof microstructures in the unit area of the thermal sensitive paper, wherein l is the length of each side corresponding to each waterproof microstructure;
step T502, according to the high-density molecular information F (w, l) in the waterproof microstructure obtained in the step T501, performing data modeling processing through the following formula (2) to obtain the optimal waterproof triangular fluid structure information V k：
Figure FDA0002508838480000062
Wherein ln is a logarithmic function with a constant e as a base, j is the 1cm2The number of the waterproof triangular fluid microstructures in the unit area of the thermal sensitive paper, M is 1cm2The volume of the waterproof triangular fluid microstructure in the unit area of the thermal sensitive paper is 1cm, and k is2The cumulative gap area of the waterproof triangular fluid microstructure in the unit area of the thermal paper,
Figure FDA0002508838480000063
for calculating the minimum gap difference, V, of the waterproof triangular fluid structurekObtaining optimal waterproof triangular fluid structure information;
step T503, the optimal waterproof triangular fluid structure information V obtained in the step T502 is processedkTo make a multi-level standModeling, carrying out iteration limit convergence treatment according to the following formula (3) to obtain the minimum three-dimensional waterproof triangular fluid structure gap area, and determining whether to execute the operation of constructing the multilayer three-dimensional high-density molecular waterproof microstructure
Figure FDA0002508838480000064
In the formula (3), d is the gap difference between the waterproof layer and the ultraviolet-resistant layer, s is the accumulated gap area of each plane of the three-dimensional high-density molecular waterproof microstructure,
Figure FDA0002508838480000071
when the value of T(s) approaches to 0, the current three-dimensional high-density molecular waterproof microstructure has a good waterproof effect, and the operation of constructing a multi-layer three-dimensional high-density molecular waterproof microstructure is executed;
Step T6, arranging an ultraviolet absorption material or an ultraviolet reflection increasing material on the waterproof layer to form the ultraviolet-resistant layer;
and a step T7 of disposing a sealing material on the anti-ultraviolet layer to form the protective layer.
CN202010460601.6A 2020-05-26 2020-05-26 Heat-sensitive paper label with good waterproof and sun-proof performance and manufacturing method thereof Pending CN111849374A (en)

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