Reading ink and preparation method and application thereof

Abstract

The invention provides point-reading ink as well as a preparation method and application thereof. The click-to-read ink comprises the following raw materials in percentage by mass: 40 to 50 weight percent of modified phenolic resin oil, 20 to 30 weight percent of soybean oil, 2 to 3 weight percent of drier, 0.5 to 1 weight percent of polyethylene wax, 1 to 1.5 weight percent of anti-skinning agent, 10 to 15 weight percent of nano calcium carbonate, 0.5 to 1.5 weight percent of heat stabilizer, 0.5 to 1 weight percent of black pigment and 4 to 5 weight percent of metal pigment. In order to ensure the sensitive recognition performance of the touch-and-talk code ink, one or two or even multiple metal materials are added into the touch-and-talk code ink, so that the certain conductivity of the ink is ensured, and the sensitive read-write effect of the touch-and-talk pen is ensured. The use amount of the carbon black material in the ink formula is greatly reduced, the color density of the ink is greatly reduced, and the ground color of a book is reduced, so that the book is more beautiful, and the reading pleasure of a reader is improved.

Description

Technical Field

[0001] The present application relates to the technical field of inks, and in particular to a point-reading ink and a preparation method thereof, printed products, and the application of the point-reading ink in point-reading books. Background Art

[0002] At present, the common point reading inks on the market are all black. The black point reading code transmits the point reading information identification to the point reading pen through the conductive properties of carbon black. After the chip of the point reading pen reads and writes the information, it sends out a pre-programmed voice, thus completing the reading and writing effect of the entire point reading ink.

[0003] With the differentiated competition of functional products in the market, the differentiated competition in many product segments, including materials, is also becoming increasingly fierce. Black, as a commonly used ink for point-reading codes, has always affected the aesthetics of reading materials and the pleasure of readers due to its too dark background color.

[0004] Many ink suppliers have been working hard to improve the problem of too dark ink for point reading codes. However, when many products are printed, the color of the point reading codes becomes lighter and the point reading pen cannot recognize the information of the point reading codes. Therefore, up to now, the point reading inks on the market are mainly black.

[0005] The contents of the background technology section are merely the technologies known to the inventors and do not necessarily represent the prior art in the field. Summary of the invention

[0006] In view of at least one problem of the above-mentioned prior art, the first object of the present application is to provide a point reading ink, comprising the following raw materials in percentage by mass:

[0007] 40-50wt% modified phenolic resin oil, 20-30wt% soybean oil, 2-3wt% drying agent, 0.5-1wt% polyethylene wax, 1-1.5wt% anti-skinning agent, 10-15wt% nano calcium carbonate, 0.5-1.5wt% heat stabilizer, 0.5-1wt% black pigment and 4-5wt% metal pigment.

[0008] In some embodiments of the present application, the black pigment is Evonik Degussa SPECIAL BLACK 4A model pigment.

[0009] In some embodiments of the present application, the metal pigment is selected from one or more of aluminum, copper, zinc, silver, iron and oxides thereof.

[0010] In some embodiments of the present application, the particle size of the nano calcium carbonate is 5000-12000 mesh.

[0011] In some embodiments of the present application, the modified phenolic resin oil includes one or more of fatty acid modified phenolic resin, rosin modified phenolic resin, polyamide modified phenolic resin, soybean oil modified phenolic resin, epoxy modified phenolic resin and drying oil modified phenolic resin.

[0012] In some embodiments of the present application, the particle size of the point-reading ink is less than 5 μm.

[0013] The second object of the present application is to provide a method for preparing any of the above-mentioned inks, comprising the following steps:

[0014] S1: Mixing and stirring the modified phenolic resin oil, soybean oil, drying agent, polyethylene wax, anti-skinning agent, nano calcium carbonate, heat stabilizer, black pigment and metal pigment, and then leaving the mixture for a predetermined time to fully wet the mixed pigment; and

[0015] S2: Grinding the mixed pigment after being placed for the predetermined time, so that the mixed pigment reaches a predetermined fineness.

[0016] In some embodiments of the present application, the stirring time is 30 to 50 minutes, and the predetermined time is greater than 4 hours.

[0017] The third object of the present application is to provide a printed product, comprising a substrate and an ink layer, wherein the ink layer is formed by printing any of the above-mentioned point reading inks on the substrate.

[0018] The fourth object of the present application is to provide the use of any of the above-mentioned point-reading inks in point-reading books.

[0019] In order to ensure the sensitive recognition performance of the point reading code ink, the present invention adds one or two or even multiple metal materials to ensure a certain conductivity of the ink, thereby ensuring the sensitive reading and writing effect of the point reading pen. The present invention greatly reduces the amount of carbon black material used in the ink formula, greatly reduces the color density of the ink, reduces the background color of the reader, makes the reader more beautiful and improves the pleasure of reading.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0022] Figure 1 The figure is a schematic diagram of a process flow for preparing ink according to an embodiment of the present invention.

[0023] Figure 2 and Figure 3 The printed product produced according to the embodiment of the present invention is shown.

[0024] Figure 4 and Figure 5 Shown is a print made in a comparative example of the present invention. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0026] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0027] As used herein, "about" or "approximately" includes the stated value and means within an acceptable range of deviation from the particular value as determined by one skilled in the art, taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "about" can mean within one or more standard deviations, or within ±30%, ±20%, ±10%, or ±5% of the stated value.

[0028] The following is a more detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples, so that the scheme of the present invention and its advantages in various aspects can be better understood. However, the specific implementation and examples described below are only for the purpose of illustration, rather than for limiting the present invention.

[0029] The point-reading ink provided in the present application comprises the following raw materials: modified phenolic resin oil, soybean oil, a drying agent, polyethylene wax, an anti-skinning agent, nano-calcium carbonate, a heat stabilizer, a black pigment and a metallic pigment.

[0030] Wherein, the content of modified phenolic resin oil is 40~50wt%.In some embodiments of the present application, its content can be 40wt%, 42wt%, 44wt%, 46wt%, 48wt% or 50wt%.Alternatively, modified phenolic resin includes one or more of fatty acid modified phenolic resin, rosin modified phenolic resin, polyamide modified phenolic resin, soybean oil modified phenolic resin, epoxy modified phenolic resin and drying oil modified phenolic resin.Further optionally, the modified phenolic resin oil used in the present application is rosin modified phenolic resin oil, for example, rosin modified PTBP p-tert-butylphenol resin oil, rosin modified POP p-tert-octylphenol resin oil and rosin modified bisphenol A resin, etc.

[0031] The content of soybean oil is 8-12 wt%. In some embodiments of the present application, the content may be 8 wt%, 9 wt%, 10 wt%, 11 wt% or 12 wt%. Optionally, soybean oil is a bio-based degradable material.

[0032] The content of the drying agent is 2-3 wt %. In some embodiments of the present application, the content of the drying agent may be 2 wt %, 2.2 wt %, 2.4 wt %, 2.6 wt %, 2.8 wt % or 3 wt %. Optionally, the drying agent is manganese isooctanoate.

[0033] The content of polyethylene wax is 0.5-1 wt%. Polyethylene wax mainly plays a role of wear resistance in the present invention. In some embodiments of the present application, the content of polyethylene wax can be 0.5 wt% or 1 wt%.

[0034] The content of the anti-skinning agent is 1-1.5 wt %. In some embodiments of the present application, the content of the anti-skinning agent may be 1 wt % or 1.5 wt %. Optionally, the anti-skinning agent is o-methyl hydroquinone.

[0035] The content of nano calcium carbonate is 10-15wt%. In some embodiments of the present application, the content of nano calcium carbonate may be 10wt%, 11wt%, 12wt%, 13wt%, 14wt% or 15wt%. Optionally, the particle size of nano calcium carbonate is 5000-12000 mesh.

[0036] The content of the heat stabilizer is 0.5-1.5 wt%. The heat stabilizer in the present invention mainly plays the role of improving the adhesion of the ink. In some embodiments of the present application, the content of the heat stabilizer can be 0.5 wt%, 1 wt% or 1.5 wt%.

[0037] The pigments used in this application include black pigments and metallic pigments. The content of black pigment is 0.5-1wt%. In some embodiments of this application, the content of black pigment may be 0.5wt%, 0.6wt%, 0.7wt%, 0.8wt%, 0.9wt% or 1wt%. Optionally, the black pigment is Evonik Degussa SPECIAL BLACK 4A model pigment. The black pigment used in this application is small, which greatly reduces the color density of the ink and the background color of the book, making the book more beautiful and improving the pleasure of the reader.

[0038] The content of the metal pigment is 4-5wt%. In some embodiments of the present application, the content of the metal pigment may be 4wt%, 4.2wt%, 4.4wt%, 4.6wt%, 4.8wt% or 5wt%. Optionally, the metal pigment is selected from one or more of aluminum, copper, silver, zinc and iron and their oxides. Due to the addition of metal materials, a certain conductivity of the ink is guaranteed, thereby ensuring the sensitive reading and writing effect of the point reading pen.

[0039] Optionally, in order to achieve better printing effect, the particle size of the point reading ink is less than 5 μm.

[0040] Figure 1 A method for preparing the above-mentioned point reading ink provided in an embodiment of the present application is shown, comprising the following steps S1 and S2.

[0041] S1: Modified phenolic resin oil, soybean oil, drier, polyethylene wax, anti-skinning agent, nano calcium carbonate, heat stabilizer, black pigment and metal pigment are mixed and stirred evenly and then placed for a predetermined time to allow the mixed pigment to be fully wetted.

[0042] Optionally, a planetary mixer is used for stirring. Further optionally, the stirring time is 30 to 50 minutes. In some specific embodiments, the stirring time can be 30 minutes, 35 minutes, 40 minutes, 45 minutes or 50 minutes.

[0043] Optionally, the predetermined time is greater than 4 hours. The mixed pigment is allowed to stand for more than 4 hours to be fully moistened before grinding.

[0044] S2: Grinding the mixed pigment after being placed for a predetermined time to make the mixed pigment reach a predetermined fineness.

[0045] Optionally, a three-roll mill is used to grind at least 2 times so that the mixed pigment reaches a predetermined fineness. The pressure of the three-roll mill can be set according to the fineness requirement, and the fineness can be detected using a fineness meter. Optionally, the predetermined fineness is <5 μm.

[0046] Optionally, the prepared ink is subjected to a three-roll mill to remove air bubbles and is then ready for packaging.

[0047] The present application further provides a printed product, which includes a substrate and an ink layer, wherein the ink layer is formed by printing any of the above-mentioned inks on the substrate. The ink can be printed on the surface of the substrate by offset printing.

[0048] The present invention also provides the application of the above-mentioned point-reading ink in point-reading books. Since the content of black pigment is very small, the point-reading books provided by the present application have relatively high aesthetics and enhance the pleasure of readers in reading.

[0049] The present invention is described below with reference to specific embodiments. The process condition values ​​taken in the following embodiments are all exemplary, and the possible numerical ranges are as shown in the above invention content. For process parameters not specifically noted, conventional techniques can be used. Unless otherwise specified, the detection methods used in the following embodiments are conventional detection methods in the industry. Unless otherwise specified, the reagents and instruments used in the technical solutions provided by the present invention can be purchased from conventional channels or the market.

[0050] Example

[0051] This embodiment prepares a printed product, and its substrate uses Golden Sun 157g double copper paper. The specific preparation steps are as follows:

[0052] First, modified phenolic resin oil, soybean oil, drier, polyethylene wax, anti-skinning agent, nano calcium carbonate, heat stabilizer, black pigment and metal pigment were mixed and stirred evenly according to the mass percentage in Table 1 to obtain a mixed pigment. The mixed pigment was then placed for 6 hours to fully wet the mixed pigment. The mixed pigment was then ground in a three-roll mill to obtain a fineness of less than 5 μm to obtain the desired ink.

[0053] Use IGT quantitative instrument to measure 0.15CC of the stirred ink, add it to the ink roller of Caibang CB225A color display instrument, start the ink distribution for 70 to 90 seconds, use the substrate as the base material, and roll the ink evenly before displaying the sample. After drying, use X-rite CI7800 to detect the display sample, and set the color difference value to △E<1 to pass. Measurement settings: measurement mode M1, light source / viewing angle D50 / 2°, △E method CIE△2000. The results are shown in Table 2. At the same time, the fineness plate, viscosity meter and fluidity meter are used to measure the fineness, viscosity and fluidity of the ink. Finally, the drying experiment is used to determine its dryness. The viscosity test of the ink is the force required for the separation between the metal ink roller and the rubber ink roller, and the force measured by the instrument is the relative size. The measurement results are shown in Table 2.

[0054] Then fold the sample in half and check if there are any cracks. The result shows no cracks.

[0055] Use 3M610 tape to compact the ink printed surface of the sample, pull it up vertically 90 degrees quickly, and observe whether there is ink loss. The result shows that there is no ink loss.

[0056] Finally, the ink was printed onto the substrate surface by offset printing, and two patterns were printed, such as Figure 2 and Figure 3 shown.

[0057] Table 1 Raw materials used in the examples

[0058]

[0059] Table 2 Performance parameters of ink in the examples

[0060]

[0061]

[0062] Comparative Example

[0063] Modified phenolic resin oil, soybean oil, drier, polyethylene wax, anti-skinning agent, nano calcium carbonate, heat stabilizer, and black pigment were mixed and stirred evenly according to the mass percentage in Table 3 to obtain a mixed pigment. The mixed pigment was then placed for 6 hours to allow the mixed pigment to be fully wetted. The mixed pigment was then ground in a three-roll mill to obtain a fineness of less than 5 μm to obtain the desired ink.

[0064] The ink was tested as in the example, and the results are shown in Table 4.

[0065] Then fold the sample in half and check if there are any cracks. The result shows that there are cracks.

[0066] Use 3M610 tape to compact the ink printed surface of the sample, pull it up vertically at 90 degrees quickly, and observe whether there is ink falling off. The result shows that there is ink falling off.

[0067] Finally, the ink is printed onto the surface of the substrate by offset printing, and the pattern is the same as in the embodiment, such as Figure 4 and Figure 5 shown.

[0068] Table 3 Raw materials used in comparative examples

[0069]

[0070]

[0071] Table 4 Comparative Example Ink Performance Parameters

[0072]

[0073] from Figure 2-Figure 5 It can be seen that the color of the printed product provided by the present application is lighter, while the color of the printed product provided by the comparative example is very dark. The present invention adds one or two or even multiple metal materials to ensure a certain conductivity of the ink, thereby ensuring the sensitive reading and writing effect of the point reading pen. The present invention greatly reduces the amount of carbon black material used in the ink formula, greatly reduces the color density of the ink, reduces the background color of the reading book, makes the reading book more beautiful and improves the pleasure of the reader.

[0074] As can be seen from Table 2, the printing adaptability of the point reading ink provided by this application is also very good.

[0075] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A point reading ink, characterized in that: The following raw materials are included in mass percentage: 40-50wt% modified phenolic resin oil, 20-30wt% soybean oil, 2-3wt% drying agent, 0.5-1wt% polyethylene wax, 1-1.5wt% anti-skinning agent, 10-15wt% nano calcium carbonate, 0.5-1.5wt% heat stabilizer, 0.5-1wt% black pigment and 4-5wt% metal pigment.

2. The point reading ink according to claim 1, characterized in that: The black pigment is Evonik Degussa SPECIAL BLACK 4A pigment.

3. The point reading ink according to claim 1, characterized in that: The metal pigment is selected from one or more of aluminum, copper, zinc, silver, iron and oxides thereof.

4. The point reading ink according to claim 1, characterized in that: The particle size of the nano calcium carbonate is 5000-12000 meshes.

5. The point reading ink according to claim 1, characterized in that: The modified phenolic resin oil includes one or more of fatty acid modified phenolic resin, rosin modified phenolic resin, polyamide modified phenolic resin, soybean oil modified phenolic resin, epoxy modified phenolic resin and drying oil modified phenolic resin.

6. The point reading ink according to claim 1, characterized in that: The particle size of the point-reading ink is less than 5 μm.

7. A method for preparing the ink according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: Mixing and stirring the modified phenolic resin oil, soybean oil, drying agent, polyethylene wax, anti-skinning agent, nano calcium carbonate, heat stabilizer, black pigment and metal pigment, and then leaving the mixture for a predetermined time to fully wet the mixed pigment; and S2: Grinding the mixed pigment after being placed for the predetermined time, so that the mixed pigment reaches a predetermined fineness.

8. The preparation method according to claim 5, characterized in that: The stirring time is 30 to 50 minutes, and the predetermined time is greater than 4 hours.

9. A printed product, characterized in that: The invention comprises a substrate and an ink layer, wherein the ink layer is formed by printing the point reading ink described in any one of claims 1 to 6 on the substrate.

10. Use of the point-reading ink according to any one of claims 1 to 6 in point-reading books.

Images