Dyne ink, method for preparing the same, and use thereof

Abstract

This invention provides a dyne pen ink, its preparation method, and its application. The dyne pen ink comprises ether compounds selected from ethyl carbitol and / or butyl carbitol. Through the design of the dyne pen ink components, this invention provides a novel, more environmentally friendly dyne pen ink with a 2-second observation time, without using toxic, carcinogenic, teratogenic, and reproductively toxic ethylene glycol ethyl ether. Furthermore, the dyne pen ink provided by this invention significantly improves abnormal shrinkage in smaller sizes (22-33), resulting in more accurate dyne values ​​obtained from testing, and the testing process does not significantly impact the health of the testers.

Description

Technical Field

[0001] This invention belongs to the field of dyne pen ink technology, specifically relating to a dyne pen ink, its preparation method and application, and more specifically to a dyne pen ink with a dyne value of 22-58, its preparation method and application. Background Technology

[0002] A dyne pen, also known as a surface tension tester, corona treatment pen, or plastic film surface tension tester, is a tool for testing the corona discharge (dynes) of a thin film surface. It is specifically designed to determine the effect of corona treatment on a film. Dyne pens come in dozens of different tension levels, accurately testing whether the surface tension of a plastic film reaches the pen's specified value. This allows users to clearly understand whether the film is suitable for printing, lamination, or vacuum metallization, thereby effectively controlling quality and reducing losses caused by substandard materials. Using a surface tension tester, subtle changes in the surface energy, hydrophilicity, and wettability of different solids can be easily analyzed.

[0003] When using a dyne pen for testing, a standard value is typically chosen as a starting point, such as 38 mN / m. During the test, if the pen wets the substrate surface within 2 seconds without shrinking, the substrate's surface tension is greater than or equal to the selected value. A second test with a higher value is then performed, and so on, until the surface shrinks into a droplet (spherical shape) within 2 seconds. The value from the previous test is then considered the substrate's surface energy and used for comparative analysis. If the surface shrinks into a droplet (spherical shape) on the first test, a second test with a lower value is performed, continuing until the surface is wet. This method accurately measures the substrate's surface tension and wettability, determining whether the substrate's surface parameters meet requirements before operation, allowing for adjustments as needed.

[0004] In the existing technology, dyne pen inks are mainly divided into two categories. One category is ink with a dyne value of 28-44 and an observation time of 4 seconds. However, the observation time of dyne pens made from this ink is 4 seconds, which is relatively long. The other category is ink with a dyne value of 30-58 and an observation time of 2 seconds, as specified in the above-mentioned test standard. This ink contains ethylene glycol ethyl ether, which is highly toxic, carcinogenic, teratogenic, and has reproductive toxicity to both men and women. It is also a flammable substance, and its transportation is controlled by the state. Dyne pens made from this ink will not only be subject to material control and transportation restrictions during use, but more importantly, it will have long-term adverse effects on the health of those who come into contact with it.

[0005] In addition, other small-sized dyne pen inks in the existing technology are made by mixing ethanol or isopropanol with ethylene glycol ethyl ether to form dyne solutions (i.e., dyne pen inks) in the range of numbers 22-30. These dyne solutions are extremely sensitive to shrinkage and are very likely to shrink abnormally after drawing lines. For example, a substrate with other formulations of number 28 that does not shrink after drawing lines indicates that the substrate's dyne value is greater than 28. However, when tested with a dyne solution in this range, such as number 26, shrinkage is highly probable. In principle, if the dyne value of the dyne solution is lower than that of the substrate, the dyne solution should not shrink, or it should spread out or flatten after drawing lines. Therefore, these small-sized dyne pen inks often fail to reflect the dyne value of the pen body (such as the number range of 22-30).

[0006] Therefore, providing a new type of environmentally friendly dyne pen ink with a 2-second observation time to solve the above problems has become an urgent technical issue. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the present invention aims to provide a dyne pen ink, its preparation method, and its application. Through the design of the dyne pen ink components, the present invention achieves a novel, more environmentally friendly dyne pen ink with a 2-second observation time, without using ethylene glycol ethyl ether. Furthermore, the dyne pen ink provided by the present invention significantly improves abnormal shrinkage in smaller sizes (sizes 22-33), resulting in dyne values ​​obtained from testing that are closer to the dyne values ​​in the formulation of ethylene glycol ethyl ether and formamide as specified in the national standard (GB / T 14216-2008). Moreover, the testing process does not pose a significant health risk to testers.

[0008] To achieve this objective, the present invention adopts the following technical solution: In a first aspect, the present invention provides a dyne pen ink, the dyne pen ink comprising an ether compound selected from ethyl carbitol (diethylene glycol monoethyl ether) and / or butyl carbitol (diethylene glycol butyl ether).

[0009] This invention, through the design of dyne pen ink components, yields a novel, more environmentally friendly dyne pen ink with a 2-second observation time, without the use of ethylene glycol ethyl ether. This dyne pen ink produces excellent lines, exhibits high solubility of its components, is not easily separated, has good and stable film-forming properties, clear edges, and is easy to observe and judge. Furthermore, its shrinkage characteristics are consistent with the formulation in the national standard (GB / T 14216-2008, the same below) (a formulation of ethylene glycol ethyl ether and formamide), allowing for accurate reading of dyne values ​​with a high degree of consistency with the standard.

[0010] Meanwhile, the dyne pen ink provided by this invention significantly improves the abnormal shrinkage situation in the small size range (22-33 size range), so that the dyne value obtained by the test of the dyne pen ink is closer to the dyne value in the national standard formula of ethylene glycol ethyl ether and formamide, and the test process will not have a significant impact on the health of the test personnel.

[0011] In this invention, specific ether compounds (ethyl carbitol and / or butyl carbitol) are used to replace ethylene glycol ethyl ether, which is toxic, carcinogenic, teratogenic, and has reproductive toxicity to both men and women. The reason it can replace ethylene glycol ethyl ether is that: ① Ether compounds have low viscosity, similar to ethylene glycol ethyl ether; ② They have high solubility with other components, so in actual use, there will be no water-oil separation, resulting in stable ink marks, clear edges, and easy observation after drawing, thus helping to obtain stable and reliable results; ③ Their dyne values ​​are similar; ④ When combined with other components (such as 1,2-propanediol), through the interaction of each component, shrinkage characteristics similar to ethylene glycol ethyl ether are achieved.

[0012] The following are preferred technical solutions of the present invention, but are not intended to limit the technical solutions provided by the present invention. The purpose and beneficial effects of the present invention can be better achieved and realized through the following preferred technical solutions.

[0013] As a preferred embodiment of the present invention, the dyne value of the dyne pen ink is 22-58, for example, it can be 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 36, 38, 40, 44, 46, 49, 50, 52, 55 or 58, etc.

[0014] As a preferred embodiment of the present invention, the dyne pen ink further includes alcohol compounds and / or water.

[0015] Preferably, the alcohol compound is selected from any one or a combination of at least two of ethanol, propanol, n-butanol or isobutanol, and more preferably ethanol.

[0016] As a preferred embodiment of the present invention, the dyne pen ink comprises an ether compound as described in the first aspect, optionally ethanol, and optionally water; The dyne value of the dyne pen ink is 22-33.

[0017] In this invention, by combining ether compounds (using diethylene glycol monoethyl ether and / or diethylene glycol butyl ether) with optional alcohol compounds and optional water, high-performance, small-size (22-33) dyne pen inks can be obtained. The small-size dyne pen inks provided by this invention can significantly improve abnormal shrinkage and best reflect the dyne value of the 22-33 size range; at the same time, compared to existing dyne pen inks using ethylene glycol ethyl ether, they also have environmentally friendly characteristics.

[0018] As a preferred embodiment of the present invention, the dyne pen ink further includes a diol compound and formamide, and the dyne pen ink also includes other alcohols selected from aqueous solutions of polyethylene glycol and / or glycerol.

[0019] Preferably, the diol compound is selected from 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,3-butanediol, or any one or a combination of at least two of dipropanediol, and more preferably 1,2-propanediol.

[0020] This invention utilizes ether compounds (diethylene glycol monoethyl ether and / or diethylene glycol butyl ether) and aqueous solutions of polyethylene glycol / glycerol, along with diol compounds, to replace ethylene glycol ethyl ether in existing technologies or standard tests. Through the synergistic effect of ether compounds (diethylene glycol monoethyl ether and / or diethylene glycol butyl ether), aqueous solutions of polyethylene glycol / glycerol, diol compounds, and formamide, it achieves the characteristics of dyne pen ink in testing standards, such as good line drawing effect, high solubility of each component liquid making it difficult to separate, good ink film-forming properties, stability, clear edges, and easy observation and judgment, while also achieving environmental protection goals.

[0021] As a preferred embodiment of the present invention, the number average molecular weight of the polyethylene glycol is 100-600 (for example, it can be 100, 200, 300, 400 or 600, etc.), preferably 200-400.

[0022] In this invention, the performance of dyne pen ink is further optimized by using polyethylene glycol with a specific number-average molecular weight.

[0023] In this invention, there are no special restrictions on the mass concentration of glycerol in the aqueous solution of glycerol, and it can be designed according to actual needs.

[0024] As a preferred embodiment of the present invention, the dyne pen ink comprises the following components in parts by weight: The first aspect comprises 0.5-80 parts of ether compounds, 0.1-50 parts of other alcohols, 0.1-50 parts of diol compounds, and 2-99 parts of formamide; wherein the ether compounds are selected from ethyl carbitol and / or butyl carbitol.

[0025] In this invention, the weight percentage of the ether compound in the dyne pen ink can be 0.5 parts, 1 part, 5 parts, 10 parts, 20 parts, 30 parts, 40 parts, 50 parts, 60 parts, 70 parts, or 80 parts, etc.

[0026] The weight percentages of other alcohols in the dyne pen ink can be 0.1, 0.5, 1, 5, 10, 15, 20, 25, 30, 35, 40, 45, or 50 parts, etc.

[0027] The weight percentage of the diol compound in the dyne pen ink can be 0.1 parts, 0.5 parts, 1 part, 5 parts, 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, or 50 parts, etc.

[0028] The formamide in the dyne pen ink can be in the following weight proportions: 2 parts, 4 parts, 6 parts, 10 parts, 20 parts, 30 parts, 40 parts, 50 parts, 60 parts, 70 parts, 80 parts, 90 parts, or 99 parts.

[0029] It should be noted that the dosage ratio of ether compounds, polyethylene glycol, 1,2-propanediol and formamide can be adjusted according to the actual dyne value requirements to meet the dyne value requirements.

[0030] As a preferred embodiment of the present invention, the dyne value of the dyne pen ink is 34-58, for example, it can be 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56 or 58, etc.

[0031] For dyne pen inks with larger dyne values ​​(34-58), this invention utilizes ether compounds (diethylene glycol monoethyl ether and / or diethylene glycol butyl ether) and aqueous solutions of polyethylene glycol / glycerol, along with diol compounds, to replace ethylene glycol ethyl ether in existing technologies or standard tests. Through the interaction of ether compounds, polyethylene glycol, diol compounds, and formamide, this invention achieves the characteristics of dyne pen inks in the testing standards, such as good line drawing effect, high solubility of each component liquid, difficulty in separation, good ink film formation, stability, clear edges, and easy observation and judgment, while also achieving the goal of environmental protection.

[0032] In a second aspect, the present invention provides a method for preparing dyne pen ink as described in the first aspect, the method comprising the following steps: The components of the dyne pen ink are mixed evenly to obtain the dyne pen ink.

[0033] Thirdly, the present invention provides an application of dyne pen ink as described in the first aspect, wherein the dyne pen ink is used to prepare dyne pens.

[0034] In this invention, the dyne values ​​of the components used to prepare dyne pen ink are ordered as follows: water > glycerol aqueous solution > formamide > polyethylene glycol > diol compound > ethyl carbitol > butyl carbitol > alcohol compound.

[0035] In this invention, dyne pen inks with a small dyne value (22-33) are obtained by combining ether compounds, optionally alcohol compounds, and optionally water; dyne pen inks with a large dyne value (34-58) are obtained by combining ether compounds, polyethylene glycol, diol compounds, formamide, and optionally water. In this invention, the components and amounts of the dyne pen ink can be adjusted according to the actual dyne value requirements.

[0036] It should also be noted that, since the components of the dyne pen ink provided by this invention (such as formamide, aqueous solutions of polyethylene glycol / glycerol, diol compounds, ethyl carbitol, butyl carbitol, and alcohol compounds, etc.) have a certain degree of hygroscopicity, the dyne pen ink prepared by this invention may contain a certain amount of water.

[0037] Compared with the prior art, the present invention has the following beneficial effects: This invention, through the design of dyne pen ink components, has yielded a novel, more environmentally friendly dyne pen ink with an observation time of 2 seconds, without the use of ethylene glycol ethyl ether. This dyne pen ink has good line drawing effect, does not separate into liquids, has good ink film-forming properties, is stable, has clear edges, and is easy to observe and judge. Detailed Implementation

[0038] To facilitate understanding of the present invention, the following embodiments are provided. Those skilled in the art should understand that these embodiments are merely illustrative and should not be construed as limiting the scope of the invention.

[0039] The sources of some components in the examples and comparative examples are shown in Table 1 below: Table 1 Example 1 This embodiment provides a dyne pen ink with a dyne value of 24, which is composed of the following components in parts by weight: 67 parts butylcarbidol, 32 parts ethanol and 1 part water.

[0040] The preparation method of the dyne pen ink with a dyne value of 24 is as follows: Butylcarbidol, ethanol and water were mixed evenly to obtain dyne pen ink with a dyne value of 24.

[0041] Example 2 This embodiment provides a dyne pen ink with a dyne value of 26, which is composed of the following components in parts by weight: 65.5 parts butyl carbitol, 32 parts ethanol and 2.5 parts water.

[0042] The preparation method of the dyne pen ink with a dyne value of 26 is as follows: Ethyl carbitol, ethanol and water were mixed evenly to obtain dyne pen ink with a dyne value of 26.

[0043] Example 3 This embodiment provides a dyne pen ink with a dyne value of 30, which is composed of the following components in parts by weight: 40 parts of ethyl carbitol and 60 parts of butyl carbitol.

[0044] The preparation method of the dyne pen ink with a dyne value of 30 is as follows: Ethyl carbitol and butyl carbitol were mixed evenly to obtain dyne pen ink with a dyne value of 30.

[0045] Example 4 This embodiment provides a dyne pen ink with a dyne value of 34, which is composed of the following components in parts by weight: 4 parts formamide, 19 parts polyethylene glycol 200, 5 parts 1,2-propanediol, and 72 parts ethyl carbitol.

[0046] The preparation method of the dyne pen ink with a dyne value of 34 is as follows: Formamide, polyethylene glycol 200, 1,2-propanediol, ethyl carbitol, and butyl carbitol were mixed evenly to obtain dyne pen ink with a dyne value of 34.

[0047] Example 5 This embodiment provides a dyne pen ink with a dyne value of 40, which is composed of the following components in parts by weight: 43 parts formamide, 11 parts polyethylene glycol 200, 3 parts 1,2-propanediol, and 43 parts ethyl carbitol.

[0048] The preparation method of the dyne pen ink with a dyne value of 40 is as follows: Formamide, polyethylene glycol 200, 1,2-propanediol, and ethyl carbitol were mixed evenly to obtain dyne pen ink with a dyne value of 40.

[0049] Example 6 This embodiment provides a dyne pen ink with a dyne value of 50, which is composed of the following components in parts by weight: Formamide 85 parts, polyethylene glycol 200 3 parts, 1,2-propanediol 0.8 parts, ethyl carbitol 11.2 parts.

[0050] The preparation method of the dyne pen ink with a dyne value of 50 is as follows: Formamide, polyethylene glycol 200, 1,2-propanediol, and ethyl carbitol were mixed evenly to obtain dyne pen ink with a dyne value of 50.

[0051] Example 7 This embodiment provides a dyne pen ink with a dyne value of 40, which is composed of the following components in parts by weight: 43 parts formamide, 11 parts polyethylene glycol 300, 3 parts 1,2-propanediol, and 43 parts ethyl carbitol.

[0052] The preparation method of the dyne pen ink with a dyne value of 40 is as follows: Formamide, polyethylene glycol 300, 1,2-propanediol, and ethyl carbitol were mixed evenly to obtain dyne pen ink with a dyne value of 40.

[0053] Example 8 This embodiment provides a dyne pen ink with a dyne value of 40, which is composed of the following components in parts by weight: 43 parts formamide, 11 parts polyethylene glycol 400, 3 parts 1,2-propanediol, and 43 parts ethyl carbitol.

[0054] The preparation method of the dyne pen ink with a dyne value of 40 is as follows: Formamide, polyethylene glycol 400, 1,2-propanediol, and ethyl carbitol were mixed evenly to obtain dyne pen ink with a dyne value of 40.

[0055] Example 9 This embodiment provides a dyne pen ink with a dyne value of 40, which is composed of the following components in parts by weight: 43 parts formamide, 11 parts polyethylene glycol 600, 3 parts 1,2-propanediol, and 43 parts ethyl carbitol.

[0056] The preparation method of the dyne pen ink with a dyne value of 40 is as follows: Formamide, polyethylene glycol 600, 1,2-propanediol, and ethyl carbitol were mixed evenly to obtain dyne pen ink with a dyne value of 40.

[0057] The performance of dyne pen inks with different dyne values ​​provided in the above embodiments was tested, and the specific test methods are as follows: Characterizing the accuracy of dyne values: Draw a line on the surface of the test substrate and observe whether the dyne pen ink shrinks 2 seconds after drawing the line. Use the national standard (GB / T 14216-2008) as a reference sample. If the shrinkage is the same as the formula in the national standard, it means that the dyne value of the dyne pen ink is the same as that of the test substrate. Based on the accuracy of commercially available dyne pens of ±1, the shrinkage time of the dyne pen ink after drawing the line should be within 1 second, that is, within 2 seconds ± 1 second. This is considered to meet the accuracy standard and is recorded as "accurate".

[0058] Film-forming properties of dyne ink: The dyne ink to be tested is evenly coated onto a solid surface (a smooth, non-hygroscopic solid surface) using a felt pen with a blade tip. If the dyne ink to be tested can spread evenly on the solid surface and form a continuous, uniform, clear, and smooth ink mark, then the film-forming properties of the dyne ink are considered "excellent".

[0059] Ink stain stability: Draw a line on the surface of the test substrate using the dyne pen ink to be tested. If no components separate within 2 seconds and the ink stain edge is clear, the ink stain stability is considered good and is recorded as "stable".

[0060] Stability of dyne solution: Test the dyne value of the prepared dyne solution and record the dyne value; then put it into a specific glass container, seal it well, and let it stand for half a year. After half a year, test the dyne value again. If the change in dyne value is ≤±1, and the film-forming properties and ink stain stability still meet the standards, it is recorded as "stable".

[0061] The performance test results are shown in Table 2 below: Table 2 As can be seen from the above, this invention, through the design of the components of dyne pen ink, has obtained a novel, more environmentally friendly dyne pen ink with an observation time of 2 seconds without using ethylene glycol ethyl ether. This dyne pen ink has good line drawing effect, high solubility between liquid components, no oil-water separation after coating, good ink film formation, stability, clear edges, and is easy to observe and judge.

[0062] As shown in Examples 5 and 7-9, the higher the number-average molecular weight of polyethylene glycol (PEG), the slower the ink shrinkage. Therefore, compared to Example 5, in the same dyne value ink system, the dyne pen inks prepared using PEG with different number-average molecular weights have slower shrinkage, resulting in inaccurate characterization dyne values. However, if the speed of ink shrinkage is ignored, the measured dyne value is the same as in Example 5. In other words, compared to Example 5, in the same dyne value ink system, the actual dyne values ​​of dyne pen inks prepared using PEG with different number-average molecular weights are accurate and the same, but the characterization dyne values ​​are inaccurate. Therefore, when preparing dyne pen inks using PEG with different number-average molecular weights, in order to obtain faster ink shrinkage and accurate actual and characterization dyne values, the composition of the dyne pen ink can be adjusted according to the actual situation.

[0063] The applicant declares that the detailed process flow of this invention is illustrated by the above embodiments, but this invention is not limited to the above detailed process flow, that is, it does not mean that this invention must rely on the above detailed process flow to be implemented. Those skilled in the art should understand that any improvements to this invention, equivalent substitutions of raw materials for the product of this invention, addition of auxiliary components, and selection of specific methods, etc., all fall within the protection scope and disclosure scope of this invention.

Claims

1. A dyne pen ink, characterized in that, The dyne pen ink comprises ether compounds selected from ethyl carbitol and / or butyl carbitol.

2. The dyne pen ink according to claim 1, characterized in that, The dyne value of the dyne pen ink is 22-58.

3. The dyne pen ink according to claim 1 or 2, characterized in that, The dyne pen ink also includes alcohol compounds and / or water; Preferably, the alcohol compound is selected from any one or a combination of at least two of ethanol, propanol, n-butanol or isobutanol, and more preferably ethanol.

4. The dyne pen ink according to claim 3, characterized in that, The dyne pen ink comprises the ether compound as described in claim 1, optionally an alcohol compound, and optionally water; The dyne value of the dyne pen ink is 22-33.

5. The dyne pen ink according to claim 1, characterized in that, The dyne pen ink also includes diol compounds and formamide, and the dyne pen ink also includes other alcohols selected from aqueous solutions of polyethylene glycol and / or glycerol; Preferably, the diol compound is selected from any one or a combination of at least two of 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,3-butanediol or dipropylene glycol, and more preferably 1,2-propanediol.

6. The dyne pen ink according to claim 5, characterized in that, The number average molecular weight of the polyethylene glycol is 100-600, preferably 200-400.

7. The dyne pen ink according to claim 5, characterized in that, The dyne pen ink comprises the following components in parts by weight: The ether compound as described in claim 1 comprises 0.5-80 parts, other alcohols 0.1-50 parts, diol compounds 0.1-50 parts, and formamide 2-99 parts; wherein the ether compound is selected from ethyl carbitol and / or butyl carbitol.

8. The dyne pen ink according to claim 5, characterized in that, The dyne value of the dyne pen ink is 34-58.

9. A method for preparing dyne pen ink as described in any one of claims 1-8, characterized in that, The preparation method of the dyne pen ink includes the following steps: The components of the dyne pen ink are mixed evenly to obtain the dyne pen ink.

10. An application of dyne pen ink as described in any one of claims 1-8, characterized in that, The dyne pen ink is used to manufacture dyne pens.

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