阅读说明：本技术 提升耐晒抑菌性能的热敏纸及其制作方法 (Heat-sensitive paper with improved sun-proof and antibacterial performance and manufacturing method thereof ) 是由 罗耀东 于 2020-05-26 设计创作，主要内容包括：本发明提供了提升耐晒抑菌性能的热敏纸及其制作方法,该提升耐晒抑菌性能的热敏纸及其制作方法通过将基材层、热敏功能层、抗菌层、透射抑制层和封装层由下至上依次层叠设置,以此形成具有多层复合结构的热敏纸,该热敏纸通过其中的抗菌层和透射抑制层能够分别有效地抵抗外界环境细菌对热敏功能层对热敏变色涂料的侵蚀以及有效地降低外界环境光线中的紫外线成分对该热敏变色涂料的光漂白褪色作用,从而最大限度地提高该热敏纸的热敏显色持久性和显色清晰度。(The invention provides a thermosensitive paper for improving sun-proof and bacteriostatic properties and a manufacturing method thereof, wherein a base material layer, a thermosensitive functional layer, an antibacterial layer, a transmission inhibiting layer and a packaging layer are sequentially stacked from bottom to top to form the thermosensitive paper with a multilayer composite structure, and the antibacterial layer and the transmission inhibiting layer of the thermosensitive paper can respectively and effectively resist the corrosion of bacteria in the external environment to the thermosensitive functional layer on a thermosensitive color-changing coating and effectively reduce the photobleaching and color-fading effects of ultraviolet components in the light in the external environment on the thermosensitive color-changing coating, so that the thermosensitive color development durability and the color development definition of the thermosensitive paper are improved to the maximum extent.)

1. Promote temperature sensing paper of resistant sunning bacterial inhibition performance, its characterized in that:

the heat-sensitive paper for improving the sun-proof and bacteriostatic performance comprises a base material layer, a heat-sensitive functional layer, an antibacterial layer, a transmission inhibition layer and a packaging layer which are sequentially stacked from bottom to top; wherein the content of the first and second substances,

the base material layer comprises a base paper film layer and an oil-repellent film layer arranged on the lower surface of the base paper film layer;

the heat-sensitive functional layer is formed by coating a heat-sensitive color-changing coating on the first flexible substrate film layer;

the antibacterial layer is formed by coating an antibacterial coating on the second flexible substrate film layer;

the transmission inhibition layer is formed by coating ultraviolet transmission inhibition paint on the third flexible substrate film layer;

the packaging layer is adhered to the upper surface of the transmission inhibition layer through a pressure-sensitive adhesive, so that the heat-sensitive paper with the sun-proof and bacteriostatic performances is integrally packaged and protected.

2. The thermal paper for improving the sun-resistant and bacteriostatic properties of claim 1, wherein:

the base paper film layer is of a multi-layer paper structure formed by mutually laminating a plurality of base paper single films; in the multilayer paper structure, the thickness of the base paper single films positioned at the bottommost layer and the topmost layer is larger than that of other base paper single films;

the oil-repellent film layer is formed by coating an oil-repellent coating on the lower surface of the base paper film layer, and the oil-repellent coating is prepared by mixing an organic solvent, oil-repellent particles and a dispersant in a ratio of 10-15: 6-9: 0.5-1 by weight ratio.

3. The thermal paper for improving the sun-resistant and bacteriostatic properties of claim 1, wherein:

the first flexible substrate film layer is a flexible fiber paper film layer;

the thermosensitive color-changing coating is prepared by mixing an organic solvent and thermosensitive color-changing particles according to the weight ratio of 10-20: 5-7 by weight ratio.

4. The thermal paper for improving the sun-resistant and bacteriostatic properties of claim 1, wherein:

the second flexible substrate film layer is a flexible fiber paper film layer;

the antibacterial coating is formed by mixing titanium dioxide nanoparticles, a dispersing agent, an antioxidant, an anti-photobleach and an organic solvent; wherein the content of the first and second substances,

the weight ratio of the titanium dioxide nanoparticles, the dispersant, the antioxidant, the anti-photobleach and the organic solvent is 5-10: 0.5-1.5: 0.5-2: 0.5-2: 40-80;

alternatively, the first and second electrodes may be,

the third flexible substrate film layer is a transparent flexible plastic film layer;

the ultraviolet transmission inhibiting coating is formed by mixing ultraviolet absorbing particles, inorganic filler and organic solvent;

the weight ratio of the ultraviolet absorbing particles, the inorganic filler and the organic solvent is 3-15: 1-1.5: 20-50 parts of;

alternatively, the first and second electrodes may be,

the packaging layer comprises a polyester film layer and an anti-scratch coating arranged on the upper surface of the polyester film layer;

the polyester film layer is adhered to the upper surface of the transmission inhibition layer through the pressure-sensitive adhesive, so that the packaging layer is right for improving the overall packaging protection of the heat-sensitive paper with the sun-proof and bacteriostatic performance.

5. The method for manufacturing the heat-sensitive paper with the sun-proof and bacteriostatic performance improved is characterized by comprising the following steps of,

step S1, a base material layer production step of providing an oil-repellent film layer on the lower surface of the base paper film layer to produce a base material layer;

step S2, a thermosensitive functional layer manufacturing procedure, wherein the thermosensitive functional layer manufacturing procedure is used for coating thermosensitive color-changing paint on the first flexible substrate film layer so as to manufacture a thermosensitive functional layer;

step S3, an antibacterial layer manufacturing procedure, wherein the antibacterial layer manufacturing procedure is used for coating antibacterial paint on the second flexible substrate film layer to manufacture an antibacterial layer;

step S4, a transmission-suppressing-layer-making process of making a transmission suppressing layer by coating an ultraviolet-transmission-suppressing paint on the third flexible substrate film layer;

step S5, a packaging layer manufacturing procedure, wherein the packaging layer manufacturing procedure is used for manufacturing a packaging layer;

step S6, a laminating and combining process, wherein the laminating and combining process is used for laminating the substrate layer, the heat-sensitive functional layer, the antibacterial layer, the transmission inhibiting layer and the packaging layer from bottom to top, so that the heat-sensitive paper capable of improving the sun-proof antibacterial performance is formed by the laminating process.

6. The method for manufacturing the heat-sensitive paper with improved light resistance and bacterial inhibition as claimed in claim 5, wherein:

in the step S1, the substrate layer producing step specifically includes,

step S101, laminating multiple layers of base paper single films to form the base paper film layer with a multi-layer paper structure, wherein in the multi-layer paper structure, the thicknesses of the base paper single films positioned at the bottommost layer and the topmost layer are both larger than those of other base paper single films;

step S102, mixing the organic solvent, the oil-repellent particles and the dispersant according to the weight ratio of 10-15: 6-9: 0.5-1 weight ratio to form an oil repellent coating;

step S103, coating the oleophobic coating on the lower surface of the base paper film layer to form the base material layer;

alternatively, the first and second electrodes may be,

in step S2, the step of forming a heat-sensitive functional layer specifically includes,

step S201A, using a flexible fiber paper film layer as the first flexible substrate film layer;

step S202A, mixing the organic solvent and the thermosensitive color-changing particles according to the weight ratio of 10-20: 5-7 weight ratio to form the thermosensitive color-changing coating;

step S203A, applying the thermochromic paint on the first flexible substrate film layer, thereby forming the thermosensitive functional layer.

7. The method for manufacturing the heat-sensitive paper with improved light resistance and bacterial inhibition as claimed in claim 5, wherein:

in the step S3, the antibacterial layer forming step specifically includes,

step S301, adopting a flexible fiber film layer as the second flexible substrate film layer;

step S302, mixing titanium dioxide nanoparticles, a dispersant, an antioxidant, a photobleach inhibitor and an organic solvent according to a ratio of 5-10: 0.5-1.5: 0.5-2: 0.5-2: 40-80 weight ratio to form the antibacterial coating;

step S303, coating the antibacterial coating in the second flexible substrate film layer to form the antibacterial layer;

alternatively, the first and second electrodes may be,

in the step S4, the transmission suppression layer manufacturing process may specifically include,

step S401, a transparent flexible plastic film layer is adopted as the third flexible substrate film layer;

step S402, mixing the ultraviolet absorbing particles, the inorganic filler and the organic solvent according to the ratio of 3-15: 1-1.5: 20 to 50 by weight ratio to form the ultraviolet transmission inhibiting coating;

step S403, coating the ultraviolet transmission inhibiting paint in the third flexible substrate film layer, thereby forming the transmission inhibiting layer.

8. The method for manufacturing the heat-sensitive paper with improved light resistance and bacterial inhibition as claimed in claim 5, wherein:

in step S5, the package layer manufacturing process specifically includes,

arranging a scratch-resistant coating on the upper surface of the polyester film layer so as to form the packaging layer;

alternatively, the first and second electrodes may be,

in step S6, the lamination and assembly step specifically includes,

step S601, laminating the substrate layer, the heat-sensitive functional layer, the antibacterial layer and the transmission inhibiting layer in sequence from bottom to top;

step S602, adhering the packaging layer on the upper surface of the transmission inhibition layer through pressure-sensitive adhesive to form the heat-sensitive paper with improved sun-proof antibacterial performance.

9. The method for manufacturing the heat-sensitive paper with improved light resistance and bacterial inhibition as claimed in claim 5, wherein:

in step S2, the step of fabricating a thermosensitive functional layer is to apply a thermosensitive color-changing paint on the first flexible substrate film layer, and the thermosensitive functional layer is specifically to dynamically adjust the ratio of each thermosensitive color-changing particle in the thermosensitive color-changing paint according to the usage environment of the thermosensitive paper, so as to realize the operation of automatically configuring and forming the thermosensitive color-changing paint based on the usage environment, and specifically includes,

step S201B, acquiring the main component functional relation F (P) of each thermosensitive discoloring particle in the thermosensitive discoloring paint through a thermosensitive discoloring particle detection instrument_a,X_b,Z_c) And determining the principal component functional relationship F (P) according to the following formula (1)_a,X_b,Z_c)

In the above formula (1), a is the number of phenolic particles detected by the thermochromic particle detection apparatus, P_aB is the amount of developer detected by the thermal discoloration particle detector, X_bIs the concentration of the developer particles, c is the amount of sensitizer detected by the thermochromic particle detector, Z_cThe concentration of the sensitizer, V the volume of the thermosensitive color-changing coating, S the area of the thermosensitive paper and V the volume of the thermosensitive color-changing particles;

step S202B, according to the principal component functional relationship F (P)_a,X_b,Z_c) Gradually increasing the main components of each thermosensitive color-changing particle in the thermosensitive color-changing paint according to the proportion of 5 percent, keeping the total proportion of the thermosensitive color-changing particles in the thermosensitive color-changing paint unchanged, keeping the corrected total proportion in the thermosensitive color-changing paint in the range of 70 percent, and calculating the content ratio K F, i, l of the optimal thermosensitive color-changing paint by the following formula (2)

In the formula (2), N is the blending frequency of the solvent corresponding to the thermochromic coating, l is the ratio of the phenolic aldehyde particles, i is the ratio of the developer particles, and F is the sensitivity of the solvent corresponding to the thermochromic coating to the ambient temperature;

step S203B, calculating the temperature change threshold value space WD of the solvent corresponding to the prepared thermosensitive color-changing paint according to the following formula (3)

In the formula (3), the circumferential ratio is a natural constant, the temperature threshold of the solvent corresponding to the thermochromic coating, which is sensitive to the environment, indicates that the current configuration of the solvent is in a proper normal-temperature range when the value range of WD is 0-45 ℃, indicates that the current configuration of the solvent is in a proper high-temperature range when the value range of WD is 46-100 ℃, and finally, according to the calculation result of WD, the operation of forming the thermochromic coating based on the automatic configuration of the use environment is realized.

10. The method for manufacturing the heat-sensitive paper with improved light and bacteria resistance of claim 1, wherein the method for manufacturing the heat-sensitive paper with improved light and bacteria resistance comprises the following steps,

step T1, forming an oil-repellent film layer on the lower surface of the base paper film layer to obtain a base material layer;

step T2, applying a thermosensitive color-changing paint on the first flexible substrate film layer, thereby obtaining a thermosensitive functional layer, which is specifically,

according to the using environment of the thermal paper, the proportion of each thermal sensitive color changing particle in the thermal sensitive color changing coating is dynamically adjusted to realize the operation of automatically configuring and forming the thermal sensitive color changing coating based on the using environment, which specifically comprises,

step T201, acquiring a main component function relation F (P) of each thermosensitive discoloring particle in the thermosensitive discoloring coating through a thermosensitive discoloring particle detection instrument_a,X_b,Z_c) And determining the principal component functional relationship F (P) according to the following formula (1)_a,X_b,Z_c)

In the above formula (1), a is the number of phenolic particles detected by the thermochromic particle detection apparatus, P_aB is the amount of developer detected by the thermal discoloration particle detector, X_bIs the concentration of the developer particles, c is the amount of sensitizer detected by the thermochromic particle detector, Z_cThe concentration of the sensitizer, V the volume of the thermosensitive color-changing coating, S the area of the thermosensitive paper and V the volume of the thermosensitive color-changing particles;

step T202, according to the principal component functional relationship F (P)_a,X_b,Z_c) Gradually increasing the main components of each thermosensitive color-changing particle in the thermosensitive color-changing paint according to the proportion of 5 percent, keeping the total proportion of the thermosensitive color-changing particles in the thermosensitive color-changing paint unchanged, keeping the corrected total proportion in the thermosensitive color-changing paint in the range of 70 percent, and calculating the content ratio K F, i, l of the optimal thermosensitive color-changing paint by the following formula (2)

In the formula (2), N is the blending frequency of the solvent corresponding to the thermochromic coating, l is the ratio of the phenolic aldehyde particles, i is the ratio of the developer particles, and F is the sensitivity of the solvent corresponding to the thermochromic coating to the ambient temperature;

step T203, calculating the temperature transformation threshold value space WD of the solvent corresponding to the prepared thermosensitive color-changing coating according to the following formula (3)

In the formula (3), the circumferential ratio is a natural constant, the temperature threshold of the solvent corresponding to the thermochromic coating, which is sensitive to the environment, indicates that the current configuration of the solvent is in a proper normal-temperature range when the value range of WD is 0-45 ℃, indicates that the current configuration of the solvent is in a proper high-temperature range when the value range of WD is 46-100 ℃, and finally, according to the calculation result of WD, the operation of automatically configuring and forming the thermochromic coating based on the use environment is realized, and finally, the thermochromic coating formed by configuration is coated on the first flexible substrate film;

step T3, coating an antibacterial coating on the second flexible substrate film layer to obtain an antibacterial layer;

step T4 of coating an ultraviolet-ray transmission-suppressing paint on the third flexible substrate film layer to obtain a transmission-suppressing layer;

step T5, forming a packaging layer;

and step T6, pressing the substrate layer, the heat-sensitive functional layer, the antibacterial layer, the transmission inhibition layer and the packaging layer from bottom to top, thereby manufacturing the heat-sensitive paper with improved sun-proof and bacteriostatic performance.

Technical Field

The invention relates to the technical field of thermal sensitive paper and preparation thereof, in particular to thermal sensitive paper for improving sun-proof antibacterial performance 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 paint is coated on a base paper, and then the thermal paint is subjected to color development reaction under the action of thermal printing, so that corresponding characters or patterns are formed. The prior art thermal paper is simply coated with a layer of thermal paint on base paper, and the structure of the thermal paper is single and lacks a corresponding protective film layer, so that the thermal paper is subjected to the action of sunlight and external environment bacteria in the transportation and storage processes, the thermal paint is not clear and uniform in color development and generates the conditions of photobleaching and color fading, and the printing recording quality and the color development durability of the thermal paper are seriously reduced.

Disclosure of Invention

The base material layer, the thermosensitive functional layer, the antibacterial layer, the transmission inhibiting layer and the packaging layer are sequentially stacked from bottom to top to form the thermosensitive paper with a multilayer composite structure, and the antibacterial layer and the transmission inhibiting layer of the thermosensitive paper can respectively and effectively resist the corrosion of bacteria in the external environment on the thermosensitive functional layer to the thermosensitive color-changing coating and effectively reduce the photobleaching and color-fading effects of ultraviolet components in the light of the external environment on the thermosensitive color-changing coating, so that the thermosensitive color development durability and the color development definition of the thermosensitive paper are improved to the maximum extent.

The invention provides heat-sensitive paper for improving sun-proof antibacterial performance, which is characterized in that:

the heat-sensitive paper for improving the sun-proof and bacteriostatic performance comprises a base material layer, a heat-sensitive functional layer, an antibacterial layer, a transmission inhibition layer and a packaging layer which are sequentially stacked from bottom to top; wherein the content of the first and second substances,

the base material layer comprises a base paper film layer and an oil-repellent film layer arranged on the lower surface of the base paper film layer;

the heat-sensitive functional layer is formed by coating a heat-sensitive color-changing coating on the first flexible substrate film layer;

the antibacterial layer is formed by coating an antibacterial coating on the second flexible substrate film layer;

the transmission inhibition layer is formed by coating ultraviolet transmission inhibition paint on the third flexible substrate film layer;

the packaging layer is adhered to the upper surface of the transmission inhibition layer through a pressure-sensitive adhesive so as to package and protect the whole thermosensitive paper with the sun-proof and bacteriostatic performances;

further, the base paper film layer has a multi-layer paper structure formed by mutually laminating a plurality of base paper single films; wherein the content of the first and second substances,

in the multilayer paper structure, the thickness of the base paper single films positioned at the bottommost layer and the topmost layer is larger than that of other base paper single films;

the oil-repellent film layer is formed by coating an oil-repellent coating on the lower surface of the base paper film layer, and the oil-repellent coating is prepared by mixing an organic solvent, oil-repellent particles and a dispersant in a ratio of 10-15: 6-9: 0.5-1 by weight ratio;

further, the first flexible substrate film layer is a flexible fiber paper film layer;

the thermosensitive color-changing coating is prepared by mixing an organic solvent and thermosensitive color-changing particles according to the weight ratio of 10-20: 5-7 by weight ratio;

further, the second flexible substrate film layer is a flexible fiber paper film layer;

the antibacterial coating is formed by mixing titanium dioxide nanoparticles, a dispersing agent, an antioxidant, an anti-photobleach and an organic solvent; wherein the content of the first and second substances,

the weight ratio of the titanium dioxide nanoparticles, the dispersant, the antioxidant, the anti-photobleach and the organic solvent is 5-10: 0.5-1.5: 0.5-2: 0.5-2: 40-80;

alternatively, the first and second electrodes may be,

the third flexible substrate film layer is a transparent flexible plastic film layer;

the ultraviolet transmission inhibiting coating is formed by mixing ultraviolet absorbing particles, inorganic filler and organic solvent;

the weight ratio of the ultraviolet absorbing particles, the inorganic filler and the organic solvent is 3-15: 1-1.5: 20-50 parts of;

alternatively, the first and second electrodes may be,

the packaging layer comprises a polyester film layer and an anti-scratch coating arranged on the upper surface of the polyester film layer;

the polyester film layer is adhered to the upper surface of the transmission inhibition layer through the pressure-sensitive adhesive, so that the packaging layer is right for improving the overall packaging protection of the heat-sensitive paper with the sun-proof and bacteriostatic performance.

The invention also provides a method for manufacturing the heat-sensitive paper with the sun-proof and bacteriostatic performance improved, which is characterized by comprising the following steps of,

step S1, a base material layer production step of providing an oil-repellent film layer on the lower surface of the base paper film layer to produce a base material layer;

step S2, a thermosensitive functional layer manufacturing procedure, wherein the thermosensitive functional layer manufacturing procedure is used for coating thermosensitive color-changing paint on the first flexible substrate film layer so as to manufacture a thermosensitive functional layer;

step S3, an antibacterial layer manufacturing procedure, wherein the antibacterial layer manufacturing procedure is used for coating antibacterial paint on the second flexible substrate film layer to manufacture an antibacterial layer;

step S4, a transmission-suppressing-layer-making process of making a transmission suppressing layer by coating an ultraviolet-transmission-suppressing paint on the third flexible substrate film layer;

step S5, a packaging layer manufacturing procedure, wherein the packaging layer manufacturing procedure is used for manufacturing a packaging layer;

step S6, a laminating and combining procedure, wherein the laminating and combining procedure is used for laminating the substrate layer, the heat-sensitive functional layer, the antibacterial layer, the transmission inhibiting layer and the packaging layer from bottom to top so as to form the heat-sensitive paper with improved sun-proof and bacteriostatic performance through combination;

further, in the step S1, the base material layer producing step may specifically include,

step S101, laminating multiple layers of base paper single films to form the base paper film layer with a multi-layer paper structure, wherein in the multi-layer paper structure, the thicknesses of the base paper single films positioned at the bottommost layer and the topmost layer are both larger than those of other base paper single films;

step S102, mixing the organic solvent, the oil-repellent particles and the dispersant according to the weight ratio of 10-15: 6-9: 0.5-1 weight ratio to form an oil repellent coating;

step S103, coating the oleophobic coating on the lower surface of the base paper film layer to form the base material layer;

alternatively, the first and second electrodes may be,

in step S2, the step of forming a heat-sensitive functional layer specifically includes,

step S201, a flexible fiber paper film layer is adopted as the first flexible substrate film layer;

step S202, mixing the organic solvent and the thermosensitive color-changing particles according to the weight ratio of 10-20: 5-7 weight ratio to form the thermosensitive color-changing coating;

step S203, coating the thermosensitive color-changing coating on the first flexible substrate film layer to form the thermosensitive functional layer;

further, in the step S3, the antibacterial layer forming step may specifically include,

step S301, adopting a flexible fiber film layer as the second flexible substrate film layer;

step S302, mixing titanium dioxide nanoparticles, a dispersant, an antioxidant, a photobleach inhibitor and an organic solvent according to a ratio of 5-10: 0.5-1.5: 0.5-2: 0.5-2: 40-80 weight ratio to form the antibacterial coating;

step S303, coating the antibacterial coating in the second flexible substrate film layer to form the antibacterial layer;

alternatively, the first and second electrodes may be,

in the step S4, the transmission suppression layer manufacturing process may specifically include,

step S401, a transparent flexible plastic film layer is adopted as the third flexible substrate film layer;

step S402, mixing the ultraviolet absorbing particles, the inorganic filler and the organic solvent according to the ratio of 3-15: 1-1.5: 20 to 50 by weight ratio to form the ultraviolet transmission inhibiting coating;

step S403, coating the ultraviolet transmission inhibiting paint in the third flexible substrate film layer, thereby forming the transmission inhibiting layer;

further, in the step S5, the package layer manufacturing process specifically includes,

arranging a scratch-resistant coating on the upper surface of the polyester film layer so as to form the packaging layer;

alternatively, the first and second electrodes may be,

in step S6, the lamination and assembly step specifically includes,

step S601, laminating the substrate layer, the heat-sensitive functional layer, the antibacterial layer and the transmission inhibiting layer in sequence from bottom to top;

step S602, adhering the packaging layer to the upper surface of the transmission inhibition layer through a pressure-sensitive adhesive to form the heat-sensitive paper with the improved sun-proof antibacterial performance;

further, in the step S2, the step of fabricating a thermosensitive functional layer is to coat a thermosensitive color-changing paint on the first flexible substrate film layer, so as to fabricate the thermosensitive functional layer, specifically, the step of dynamically adjusting the ratio of each thermosensitive color-changing particle in the thermosensitive color-changing paint according to the usage environment of the thermosensitive paper, so as to implement an operation of automatically configuring and forming the thermosensitive color-changing paint based on the usage environment, and specifically includes,

step S201B, acquiring the main component functional relation F (P) of each thermosensitive discoloring particle in the thermosensitive discoloring paint through a thermosensitive discoloring particle detection instrument_a,X_b,Z_c) And determining the principal component functional relationship F (P) according to the following formula (1)_a,X_b,Z_c)

In the above formula (1), a is the number of phenolic particles detected by the thermochromic particle detection apparatus, P_aB is the amount of developer detected by the thermal discoloration particle detector, X_bIs the concentration of the developer particles, c is the amount of sensitizer detected by the thermochromic particle detector, Z_cThe concentration of the sensitizer, V the volume of the thermosensitive color-changing coating, S the area of the thermosensitive paper and V the volume of the thermosensitive color-changing particles;

step S202B, according to the principal component functional relationship F (P)_a,X_b,Z_c) Gradually increasing the main components of each thermosensitive color-changing particle in the thermosensitive color-changing paint according to the proportion of 5 percent, keeping the total proportion of the thermosensitive color-changing particles in the thermosensitive color-changing paint unchanged, keeping the corrected total proportion in the thermosensitive color-changing paint in the range of 70 percent, and calculating the content ratio K F, i, l of the optimal thermosensitive color-changing paint by the following formula (2)

In the formula (2), N is the blending frequency of the solvent corresponding to the thermochromic coating, l is the ratio of the phenolic aldehyde particles, i is the ratio of the developer particles, and F is the sensitivity of the solvent corresponding to the thermochromic coating to the ambient temperature;

step S203B, calculating the temperature change threshold value space WD of the solvent corresponding to the prepared thermosensitive color-changing paint according to the following formula (3)

In the formula (3), the circumferential ratio is a natural constant, the temperature threshold of the solvent corresponding to the thermochromic coating, which is sensitive to the environment, indicates that the current configuration of the solvent is in a proper normal-temperature range when the value range of WD is 0-45 ℃, indicates that the current configuration of the solvent is in a proper high-temperature range when the value range of WD is 46-100 ℃, and finally, according to the calculation result of WD, the operation of forming the thermochromic coating based on the automatic configuration of the use environment is realized.

The invention also provides another manufacturing method of the heat-sensitive paper for improving the sun-proof and bacteriostatic performance, which is characterized in that the manufacturing method of the heat-sensitive paper for improving the sun-proof and bacteriostatic performance comprises the following steps,

step T1, forming an oil-repellent film layer on the lower surface of the base paper film layer to obtain a base material layer;

step T2, applying a thermosensitive color-changing paint on the first flexible substrate film layer, thereby obtaining a thermosensitive functional layer, which is specifically,

according to the using environment of the thermal paper, the proportion of each thermal sensitive color changing particle in the thermal sensitive color changing coating is dynamically adjusted to realize the operation of automatically configuring and forming the thermal sensitive color changing coating based on the using environment, which specifically comprises,

step T201, acquiring a main component function relation F (P) of each thermosensitive discoloring particle in the thermosensitive discoloring coating through a thermosensitive discoloring particle detection instrument_a,X_b,Z_c) And determining the principal component functional relationship F (P) according to the following formula (1)_a,X_b,Z_c)

In the above formula (1), a is the number of phenolic particles detected by the thermochromic particle detection apparatus, P_aIs the concentration of the phenolic particles, b is the heat-sensitiveThe amount of developer, X, detected by the color-changing particle detector_bIs the concentration of the developer particles, c is the amount of sensitizer detected by the thermochromic particle detector, Z_cThe concentration of the sensitizer, V the volume of the thermosensitive color-changing coating, S the area of the thermosensitive paper and V the volume of the thermosensitive color-changing particles;

step T202, according to the principal component functional relationship F (P)_a,X_b,Z_c) Gradually increasing the main components of each thermosensitive color-changing particle in the thermosensitive color-changing paint according to the proportion of 5 percent, keeping the total proportion of the thermosensitive color-changing particles in the thermosensitive color-changing paint unchanged, keeping the corrected total proportion in the thermosensitive color-changing paint in the range of 70 percent, and calculating the content ratio K F, i, l of the optimal thermosensitive color-changing paint by the following formula (2)

In the formula (2), N is the blending frequency of the solvent corresponding to the thermochromic coating, l is the ratio of the phenolic aldehyde particles, i is the ratio of the developer particles, and F is the sensitivity of the solvent corresponding to the thermochromic coating to the ambient temperature;

step T203, calculating the temperature transformation threshold value space WD of the solvent corresponding to the prepared thermosensitive color-changing coating according to the following formula (3)

In the formula (3), the circumferential ratio is a natural constant, the temperature threshold of the solvent corresponding to the thermochromic coating, which is sensitive to the environment, indicates that the current configuration of the solvent is in a proper normal-temperature range when the value range of WD is 0-45 ℃, indicates that the current configuration of the solvent is in a proper high-temperature range when the value range of WD is 46-100 ℃, and finally, according to the calculation result of WD, the operation of automatically configuring and forming the thermochromic coating based on the use environment is realized, and finally, the thermochromic coating formed by configuration is coated on the first flexible substrate film;

step T3, coating an antibacterial coating on the second flexible substrate film layer to obtain an antibacterial layer;

step T4 of coating an ultraviolet-ray transmission-suppressing paint on the third flexible substrate film layer to obtain a transmission-suppressing layer;

step T5, forming a packaging layer;

and step T6, pressing the substrate layer, the heat-sensitive functional layer, the antibacterial layer, the transmission inhibition layer and the packaging layer from bottom to top, thereby manufacturing the heat-sensitive paper with improved sun-proof and bacteriostatic performance.

Compared with the prior art, the thermosensitive paper with the sun-proof and bacteriostatic performances improved and the manufacturing method thereof are characterized in that the base material layer, the thermosensitive functional layer, the antibacterial layer, the transmission inhibiting layer and the packaging layer are sequentially stacked from bottom to top to form the thermosensitive paper with a multilayer composite structure, and the thermosensitive paper can effectively resist the corrosion of external environment bacteria to the thermosensitive functional layer on the thermosensitive color-changing coating and effectively reduce the photobleaching and fading effects of ultraviolet components in external environment light on the thermosensitive color-changing coating through the antibacterial layer and the transmission inhibiting layer, so that the thermosensitive color development durability and the color development definition of the thermosensitive paper are improved to the maximum extent.

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 view of a thermal sensitive paper with improved light resistance and bacteriostatic performance provided by the present invention;

fig. 2 is a schematic flow chart of a manufacturing method of the heat-sensitive paper for improving light fastness and bacterial inhibition 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.

Fig. 1 is a schematic structural view of a thermal sensitive paper for improving light fastness and antibacterial performance according to an embodiment of the present invention. The heat-sensitive paper for improving the sun-proof and bacteriostatic performance comprises a base material layer, a heat-sensitive functional layer, an antibacterial layer, a transmission inhibition layer and a packaging layer which are sequentially stacked from bottom to top; wherein the content of the first and second substances,

the base material layer comprises a raw paper film layer and an oil-repellent film layer arranged on the lower surface of the raw paper film layer;

the heat-sensitive functional layer is formed by coating a heat-sensitive color-changing coating on the first flexible substrate film layer;

the antibacterial layer is formed by coating an antibacterial coating on the second flexible substrate film layer;

the transmission inhibiting layer is formed by coating ultraviolet transmission inhibiting paint on the third flexible substrate film layer;

the packaging layer is adhered to the upper surface of the transmission inhibiting layer through a pressure-sensitive adhesive so as to package and protect the whole thermosensitive paper with the sun-proof and bacteriostatic performances.

This promote resistant heat-sensitive paper that shines antibacterial performance can avoid this heat-sensitive paper to expose in the external environment or by gathering the bacterium after the contact effectively through set up antibiotic layer on the heat-sensitive functional layer to prevent the erosion of bacterium to the heat-sensitive functional layer, in addition, can reduce the ultraviolet composition in the external environment light effectively through set up the transmission inhibiting layer on heat-sensitive paper and shine the heat-sensitive functional layer, thereby avoid this heat-sensitive functional layer to take place the condition that photobleaching fades and improve the display performance of heat-sensitive functional layer.

Preferably, the base paper film layer has a multi-layer paper structure in which a plurality of base paper single films are laminated with each other; wherein the content of the first and second substances,

in the multi-layer paper structure, the thickness of the base paper single films positioned at the bottommost layer and the topmost layer is larger than that of other base paper single films;

the oil-repellent film layer is formed by coating an oil-repellent coating on the lower surface of the base paper film layer, and the oil-repellent coating is prepared by mixing an organic solvent, oil-repellent particles and a dispersant in a ratio of 10-15: 6-9: 0.5-1 by weight ratio.

The base paper film layer is used as the bottom structure layer of the heat-sensitive paper, the oil-repellent film layer is arranged on the lower surface of the base paper film layer, so that the heat-sensitive paper can be effectively prevented from being polluted by grease in the using process, and the oil-repellent coating formed by mixing the weight ratio can furthest improve the oil resistance and the oil-repellent persistence of the oil-repellent film layer.

Preferably, the first flexible substrate film layer is a flexible fiber paper film layer;

the thermosensitive color-changing coating is prepared by mixing an organic solvent and thermosensitive color-changing particles according to the weight ratio of 10-20: 5-7 by weight ratio.

The thermosensitive color-changing coating formed by mixing the components in the weight ratio can ensure that the thermosensitive color-changing coating can be uniformly and quickly coated on the first flexible substrate film layer, so that the film forming property of the thermosensitive color-changing coating is improved, and in addition, the thermosensitive color-changing performance of the thermosensitive functional layer can be effectively improved.

Preferably, the second flexible substrate film layer is a flexible fiber paper film layer;

the antibacterial coating is formed by mixing titanium dioxide nanoparticles, a dispersant, an antioxidant, an anti-photobleach and an organic solvent; wherein the content of the first and second substances,

the weight ratio of the titanium dioxide nanoparticles, the dispersant, the antioxidant, the photo-bleach inhibitor and the organic solvent is 5-10: 0.5-1.5: 0.5-2: 0.5-2: 40-80.

The antibacterial coating takes the titanium dioxide nanoparticles as an antibacterial main body, the manufacturing cost is low, the antibacterial performance of the antibacterial coating can be improved to the maximum extent, and in addition, the antibacterial coating formed by mixing according to the weight ratio can have higher antibacterial effectiveness and durability.

Preferably, the third flexible substrate film layer is a transparent flexible plastic film layer;

the ultraviolet transmission inhibiting coating is formed by mixing ultraviolet absorbing particles, inorganic filler and organic solvent;

the weight ratio of the ultraviolet absorbing particles, the inorganic filler and the organic solvent is 3-15: 1-1.5: 20-50.

The ultraviolet transmission inhibition coating takes ultraviolet absorption particles as ultraviolet component transmission inhibition main bodies, and can absorb more than 95% of ultraviolet components in external environment light so as to prevent the ultraviolet components from transmitting to the thermosensitive functional layer to cause photobleaching and fading reaction.

Preferably, the packaging layer comprises a polyester film layer and a scratch-resistant coating arranged on the upper surface of the polyester film layer;

the polyester film layer is bonded with the upper surface of the transmission inhibition layer through the pressure-sensitive adhesive, so that the packaging layer can integrally package and protect the thermosensitive paper with the sun-proof and antibacterial performances.

The packaging layer is arranged on the topmost surface of the thermal sensitive paper through the pressure sensitive adhesive, so that external water vapor and impurities can be effectively prevented from entering the thermal sensitive paper, and the thermal sensitive paper is integrally packaged and protected.

Fig. 2 is a schematic flow chart of a manufacturing method of a thermal sensitive paper for improving light fastness and bacterial inhibition according to an embodiment of the present invention. The manufacturing method of the heat-sensitive paper for improving the sun-proof and bacteriostatic performance comprises the following steps,

step S1, a base material layer production step of forming an oil-repellent film layer on the lower surface of the base paper film layer to produce a base material layer;

step S2, a thermosensitive functional layer manufacturing procedure, wherein the thermosensitive functional layer manufacturing procedure is used for coating thermosensitive color-changing paint on the first flexible substrate film layer so as to manufacture a thermosensitive functional layer;

step S3, an antibacterial layer manufacturing procedure, wherein the antibacterial layer manufacturing procedure is used for coating antibacterial paint on the second flexible substrate film layer to manufacture an antibacterial layer;

a step S4 of forming a transmission-suppressing layer by applying an ultraviolet-ray transmission-suppressing paint to the third flexible substrate film layer;

step S5, a package layer manufacturing process for manufacturing a package layer;

step S6, a stacking and combining step, in which the substrate layer, the heat-sensitive functional layer, the antibacterial layer, the transmission suppression layer, and the encapsulation layer are stacked from bottom to top to form the heat-sensitive paper with improved light-resistant and antibacterial properties.

Preferably, in step S1, the substrate layer manufacturing step includes,

step S101, laminating multiple layers of base paper single films to form a base paper film layer with a multi-layer paper structure, wherein in the multi-layer paper structure, the thicknesses of the base paper single films positioned at the bottommost layer and the topmost layer are both larger than those of other base paper single films;

step S102, mixing the organic solvent, the oil-repellent particles and the dispersant according to the weight ratio of 10-15: 6-9: 0.5-1 weight ratio to form an oil repellent coating;

step S103, coating the oil-repellent coating on the lower surface of the base paper film layer to form the base material layer.

Preferably, in step S2, the heat-sensitive functional layer manufacturing process specifically includes,

step S201, a flexible fiber paper film layer is adopted as the first flexible substrate film layer;

step S202, mixing the organic solvent and the thermosensitive color-changing particles according to the weight ratio of 10-20: 5-7 weight ratio to form the thermosensitive color-changing coating;

step S203, coating the thermosensitive color-changing paint on the first flexible substrate film layer to form the thermosensitive functional layer.

Preferably, in the step S3, the antibacterial layer manufacturing process specifically includes,

step S301, adopting a flexible fiber film layer as the second flexible substrate film layer;

step S302, mixing titanium dioxide nanoparticles, a dispersant, an antioxidant, a photobleach inhibitor and an organic solvent according to a ratio of 5-10: 0.5-1.5: 0.5-2: 0.5-2: 40-80 weight ratio to form the antibacterial coating;

step S303, coating the antibacterial coating on the second flexible substrate film layer to form the antibacterial layer.

Preferably, in the step S4, the transmission-suppressing layer fabrication process specifically includes,

step S401, a transparent flexible plastic film layer is adopted as the third flexible substrate film layer;

step S402, mixing the ultraviolet absorbing particles, the inorganic filler and the organic solvent according to the ratio of 3-15: 1-1.5: 20-50 by weight ratio to form the ultraviolet transmission inhibiting coating;

step S403, coating the ultraviolet transmission inhibiting paint in the third flexible substrate film layer to form the transmission inhibiting layer.

Preferably, in the step S5, the package layer manufacturing process specifically includes,

and arranging a scratch-resistant coating on the upper surface of the polyester film layer so as to form the packaging layer.

Preferably, in the step S6, the lamination and assembly process specifically includes,

step S601, laminating the substrate layer, the heat-sensitive functional layer, the antibacterial layer and the transmission inhibiting layer in sequence from bottom to top;

step S602, adhering the packaging layer on the upper surface of the transmission inhibition layer through a pressure-sensitive adhesive to form the heat-sensitive paper with improved sun-proof antibacterial performance;

preferably, in the step S2, the thermosensitive functional layer preparing process is used for coating a thermosensitive color-changing paint on the first flexible substrate film layer, so as to prepare the thermosensitive functional layer, specifically, the proportion of each thermosensitive color-changing particle in the thermosensitive color-changing paint is dynamically adjusted according to the usage environment of the thermosensitive paper, so as to realize the operation of automatically configuring and forming the thermosensitive color-changing paint based on the usage environment, and specifically, the operation comprises,

step S201B, acquiring the main component functional relation F (P) of each thermosensitive discoloring particle in the thermosensitive discoloring paint through a thermosensitive discoloring particle detection instrument_a,X_b,Z_c) And determining the principal component functional relationship F (P) according to the following formula (1)_a,X_b,Z_c)

In the above formula (1), a is the number of phenolic particles detected by the thermochromic particle detection apparatus, P_aB is the amount of developer detected by the thermochromic particle detector, X_bIs the concentration of the developer particles, c is the amount of sensitizer detected by the thermochromic particle detector, Z_cThe concentration of the sensitizer, V is the volume of the thermosensitive color-changing coating, S is the area of the thermosensitive paper, and V is the volume of the thermosensitive color-changing particles;

step S202B, according to the principal component functional relationship F (P)_a,X_b,Z_c) Gradually increasing the main components of each thermosensitive color-changing particle in the thermosensitive color-changing paint according to the proportion of 5 percent, keeping the total proportion of the thermosensitive color-changing particles in the thermosensitive color-changing paint unchanged, keeping the corrected total proportion in the thermosensitive color-changing paint in the range of 70 percent, and calculating the content ratio K F, i, l of the optimal thermosensitive color-changing paint by the following formula (2)

In the formula (2), N is the blending frequency of the solvent corresponding to the thermochromic coating, l is the ratio of the phenolic aldehyde particles, i is the ratio of the developer particles, and F is the sensitivity of the solvent corresponding to the thermochromic coating to the ambient temperature;

step S203B, calculating the temperature change threshold value space WD of the solvent corresponding to the prepared thermosensitive color-changing paint according to the following formula (3)

In the formula (3), the circumferential ratio is a natural constant, the temperature threshold of the solvent corresponding to the thermochromic coating, which is sensitive to the environment, indicates that the current configuration of the solvent is in a proper normal temperature range when the WD ranges from 0 ℃ to 45 ℃, indicates that the current configuration of the solvent is in a proper high temperature range when the WD ranges from 46 ℃ to 100 ℃, and finally, according to the calculation result of the WD, the operation of forming the thermochromic coating based on the automatic configuration of the use environment is realized.

The operation of forming the thermochromic coating based on the automatic configuration of the use environment can provide matched technical support for producing the thermosensitive paper with different temperature sensitivities, and can dynamically adjust the proportion of each thermochromic particle in the thermochromic coating according to the actual requirements of different customers and the use environment of the thermosensitive paper, so that the sensitivity and the applicability to different occasions of the thermosensitive paper are enhanced, and the market competitiveness of the thermosensitive paper and the production profit of the thermosensitive paper can be improved by producing the thermosensitive paper with different identification accuracies to the work environment.

In addition, the embodiment of the invention also provides another manufacturing method of the heat-sensitive paper for improving the sun-proof and bacteriostatic performance, which comprises the following steps,

step T1, forming an oil-repellent film layer on the lower surface of the base paper film layer to obtain a base material layer;

step T2, applying a thermosensitive color-changing paint on the first flexible substrate film layer, thereby obtaining a thermosensitive functional layer, which is specifically,

according to the using environment of the thermal paper, the proportion of each thermal sensitive color changing particle in the thermal sensitive color changing coating is dynamically adjusted to realize the use based on the using ringThe operation of automatically configuring the environment to form the thermosensitive color-changing paint specifically comprises a step T201 of acquiring a main component function relationship F (P) of each thermosensitive color-changing particle in the thermosensitive color-changing paint through a thermosensitive color-changing particle detection instrument_a,X_b,Z_c) And determining the principal component functional relationship F (P) according to the following formula (1)_a,X_b,Z_c)

In the above formula (1), a is the number of phenolic particles detected by the thermochromic particle detection apparatus, P_aB is the amount of developer detected by the thermochromic particle detector, X_bIs the concentration of the developer particles, c is the amount of sensitizer detected by the thermochromic particle detector, Z_cThe concentration of the sensitizer, V is the volume of the thermosensitive color-changing coating, S is the area of the thermosensitive paper, and V is the volume of the thermosensitive color-changing particles;

step T202, according to the principal component functional relationship F (P)_a,X_b,Z_c) Gradually increasing the main components of each thermosensitive color-changing particle in the thermosensitive color-changing paint according to the proportion of 5 percent, keeping the total proportion of the thermosensitive color-changing particles in the thermosensitive color-changing paint unchanged, keeping the corrected total proportion in the thermosensitive color-changing paint in the range of 70 percent, and calculating the content ratio K F, i, l of the optimal thermosensitive color-changing paint by the following formula (2)

In the formula (2), N is the blending frequency of the solvent corresponding to the thermochromic coating, l is the ratio of the phenolic aldehyde particles, i is the ratio of the developer particles, and F is the sensitivity of the solvent corresponding to the thermochromic coating to the ambient temperature;

step T203, calculating the temperature transformation threshold value space WD of the solvent corresponding to the thermal sensitive color-changing coating according to the following formula (3)

In the formula (3), the circumferential ratio is a natural constant, the temperature threshold of the solvent corresponding to the thermochromic coating, which is sensitive to the environment, indicates that the current configuration of the solvent is in a proper normal-temperature range when the value range of WD is 0-45 ℃, indicates that the current configuration of the solvent is in a proper high-temperature range when the value range of WD is 46-100 ℃, and finally, according to the calculation result of WD, the operation of automatically configuring and forming the thermochromic coating based on the use environment is realized, and finally, the thermochromic coating formed by configuration is coated on the first flexible substrate film;

step T3, coating an antibacterial coating on the second flexible substrate film layer to obtain an antibacterial layer;

step T4 of coating an ultraviolet-ray transmission-suppressing paint on the third flexible substrate film layer to obtain a transmission-suppressing layer;

step T5, forming a packaging layer;

and T6, laminating the substrate layer, the heat-sensitive functional layer, the antibacterial layer, the transmission inhibition layer and the packaging layer from bottom to top to prepare the heat-sensitive paper with improved sun-proof and antibacterial performance.

The manufacturing method of the other heat-sensitive paper for improving the sun-proof and bacteriostatic performance is different from the manufacturing method of the heat-sensitive paper for improving the sun-proof and bacteriostatic performance in that the base material layer, the heat-sensitive functional layer, the antibacterial layer, the transmission inhibiting layer and the packaging layer are pressed in a pressing mode, so that the situation that the heat-sensitive paper is separated in the use process is avoided, and the combination stability of the layers is improved.

According to the content of the embodiment, the base material layer, the thermosensitive functional layer, the antibacterial layer, the transmission inhibiting layer and the packaging layer are sequentially stacked from bottom to top to form the thermosensitive paper with the multilayer composite structure, and the antibacterial layer and the transmission inhibiting layer of the thermosensitive paper can respectively and effectively resist the corrosion of bacteria in the external environment on the thermosensitive functional layer to the thermosensitive color-changing coating and effectively reduce the photobleaching and color-fading effects of ultraviolet components in the external environment on the thermosensitive color-changing coating, so that the thermosensitive color development durability and the color development definition of the thermosensitive paper are improved to the maximum extent.

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.