A device for testing ink anti-sedimentation performance and a method for using the same

Abstract

The present invention discloses an ink anti-sedimentation performance testing device and a method for using the same. The present invention provides a first cross bar with a through hole on it, which can accurately measure the distance and time of a first ball falling, solves the problem of being unable to accurately measure the distance and time of the first ball falling under adverse conditions such as poor light and light refraction, and solves the problem that the prior art cannot measure the specific distance that the first ball falls in an ink sample and the time required to fall the specific distance, and can effectively avoid damage to the bottom of a container containing the ink sample caused by the high-speed fall of the first ball in traditional measurements; a second ball is provided, which can effectively reduce the effect of gravity on the first ball, greatly reduce the speed of the first ball falling, and increase the time required for the first ball to fall a certain distance in the ink sample, thereby increasing the accuracy of the measurement result of the present invention device and improving the detection efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of printing ink detection, and in particular to an ink anti-sedimentation performance testing device and a use method thereof. Background Art

[0002] Ink is an important material used for printing packaging materials. It prints patterns and texts on substrates. Ink includes main components and auxiliary components, which are evenly mixed and repeatedly rolled to form a viscous colloidal fluid. The precipitation phenomenon of ink is almost similar to the acidification. Most of them are caused by one or several resins in the ink system not being completely soluble in each other when mixed, or one of them is not dissolved at all (such as turbidity). In the printing process of packaging printing ink, using a single solvent or using the wrong solvent can also cause floating color, light color, and inconsistent ink film. The main reasons for the precipitation phenomenon of ink are: 1. The ink has expired; 2. Precipitation occurs because the pigment forms large floccules; 3. The ink itself is relatively thick, with high concentration and low viscosity, and it is not a good plastic fluid; 4. In addition to stratification, precipitation, and precipitation during storage, the binder in the ink system is unstable; 5. Adding bad diluents or ink oil during packaging printing, etc.

[0003] After the ink has been stored for a period of time, the viscosity of the upper part of the container is low, and the color and concentration are lighter; the viscosity of the lower part is high, and the color and concentration are also darker. Due to the poor dispersion of the pigment in the binder and the excessive relative density of the pigment or filler, precipitation is prone to occur after long-term storage. In severe cases, there is even sediment at the bottom of the container that is difficult to stir. For ink that is easy to precipitate, the ink at the bottom of the container cannot be effectively utilized, which often increases the cost of ink use for printing companies and the color deviation of printed products. As for whether the ink is prone to precipitation, there is no effective method in the industry to measure and evaluate whether it is easy to precipitate, and there are few reports on related ink anti-precipitation test methods. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide an ink anti-precipitation performance testing device with simple structure and strong practicality and an ink anti-precipitation performance testing method with high detection efficiency and good test result accuracy.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is: an ink anti-sedimentation performance testing device, comprising a base, a support rod, a first cross bar and a second cross bar, the upper surface of the base is provided with a vertical support rod, the first cross bar and the second cross bar are both horizontally arranged on the support rod, the second cross bar is located at the top of the support rod, the second cross bar is located above the first cross bar, left and right pulleys are fixed on the second cross bar, a thin rope is wound between the two pulleys, a first round bead is hung at the left end of the thin rope, and a second round bead is hung at the right end of the thin rope, a through hole is opened on the first cross bar, the through hole is located directly above the second round bead, the thin rope passes through the through hole, so that the thin rope can move up and down in the through hole along the vertical direction, the outer diameter of the second round bead is larger than the diameter of the through hole, and the mass of the first round bead is larger than the mass of the second round bead.

[0006] Furthermore, the first cross bar is slidably connected to the support bar.

[0007] Furthermore, it also includes a barrel body for containing the sample to be tested.

[0008] Furthermore, a notch connected to the through hole is provided on the first crossbar, and the notch is used to allow the thin rope to enter and exit the through hole in the first crossbar laterally.

[0009] Furthermore, a groove is provided on the pulley.

[0010] Furthermore, a sound-generating device is provided on the first cross bar above the second round bead, and the sound-generating device is used for colliding with the second round bead and generating a sound.

[0011] Furthermore, the sound-generating device is a drum or a metal sheet.

[0012] Furthermore, the thin rope is provided with a scale.

[0013] The present invention also provides a method for using the ink anti-sedimentation performance testing device, comprising the following steps:

[0014] (1) Low temperature storage: Place the ink sample in a sealed container and store it at 3.5°C-4.5°C for 6-8 days;

[0015] (2) Stand at room temperature: Stand at 22℃-25℃ for 3h-5h;

[0016] (3) Sample testing: 1) Static ink measurement: Open the container and adjust the position of the second ball so that the string can move upward in the through hole for a distance A. At the same time, adjust the position of the container so that the first ball contacts the surface of the ink sample. Measure and record the time 1 required for the first ball to drop vertically when the ink sample drops vertically for a distance A. 2) Uniform ink measurement: Stir the ink sample after the static ink measurement evenly and let it stand for another 8-12 minutes. Use the method in step 1) to measure and record the time 2 required for the first ball to drop vertically when the ink sample drops vertically for a distance A.

[0017] (4) Calculate the ratio of time 1 to time 2.

[0018] Furthermore, in step (3), the vertical falling distance A of the first ball in the ink sample is 0.2 to 0.8 times the depth of the ink sample.

[0019] The beneficial effects of the above technical solution adopted by the present invention are as follows: the present invention provides an ink anti-sedimentation performance testing device and a method of using the same. The device of the present invention is provided with a first cross bar and a through hole is opened on the cross bar. The first cross bar plays a role in limiting the vertical descent of the first ball in the ink sample. When used in conjunction with a stopwatch, the device of the present invention can accurately measure the descent distance and time of the first ball, thereby solving the problem that the descent distance and time of the first ball cannot be accurately measured under adverse conditions such as poor light and light refraction, and also solves the problem that the prior art cannot measure the descent distance of the first ball in the ink sample and the time required for the descent distance, and at the same time can effectively avoid the damage to the bottom of the container containing the ink sample caused by the high-speed descent of the first ball in traditional measurements, thereby greatly increasing the service life of the equipment; the device of the present invention is provided with a second ball, which can effectively reduce the effect of gravity on the first ball, greatly reduce the descent speed of the first ball, and increase the time required for the first ball to descend a certain distance in the ink sample, thereby increasing the accuracy of the measurement result of the device of the present invention and improving the detection efficiency.

[0020] The present invention discloses an ink anti-sedimentation performance testing device and a method for using the device. The first cross bar of the device is slidably connected to a support bar, which can align the liquid level of an ink sample to be tested, thereby further improving the measurement accuracy. The first cross bar is provided with a notch connected to a through hole, thereby facilitating the replacement of a thin rope and round balls at both ends of the thin rope. The pulley is provided with a groove, thereby effectively preventing the thin rope from falling off the pulley, thereby being highly practical. The first cross bar is provided with a sounding device, thereby determining whether to stop the test timing according to the sound, thereby greatly improving the user experience of the device of the present invention. The thin rope is provided with a scale, thereby facilitating the setting and reading of the vertical falling distance of the first round ball in the ink sample.

[0021] The present invention provides an ink anti-precipitation performance testing device and a use method thereof. According to the testing method of the present invention, the ink sample is first sealed and allowed to stand at low temperature. When the ink sample is allowed to stand at low temperature, precipitation can be promoted in the ink sample to determine whether the ink is prone to precipitation. The ink sample is sealed and the temperature of the low-temperature storage is reasonably set, which can effectively avoid the "skinning" phenomenon on the ink surface during the standing process, greatly increasing the accuracy of the measurement. The ink is usually used at room temperature, and the ink sample is tested after standing at room temperature, so that the use status and performance of the ink in a normal state can be obtained, thereby increasing the accuracy of the measurement result.

[0022] The testing method of the present invention is aimed at the gap in the industry's method for measuring and evaluating the anti-sedimentation of ink. The principle is: when the ink is fully stirred and evenly distributed, the pigment, filler, binder and other substances in the ink are evenly distributed on each point, and the density of each point is the same. Therefore, the buoyancy at different heights is the same. After the ink has been left to stand for a period of time, the pigment, filler, binder and other substances in the ink gradually sink, and the solid content ratio of the upper ink is lower than that of the lower ink, and the more obvious it is as it goes down, that is, the density of the ink increases from top to bottom. Therefore, as the ball sinks into the ink from top to bottom, the buoyancy it is subjected to increases successively. The testing method of the present invention evaluates the anti-sedimentation property of the ink by comparing the sinking time of the ball in the upper half of the stationary ink and the uniform ink. By measuring the ratio of the sinking time of the ball in the stationary ink and the uniform ink measurement, the anti-sedimentation property of the ink is evaluated by the time ratio. The closer the ratio is to 100%, the better the anti-sedimentation property is. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the first cross bar of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but they do not constitute any limitation to the present invention.

[0026] like Figure 1 , Figure 2As shown, an ink anti-precipitation performance testing device comprises a base 1, a support rod 2, a first cross bar 3 and a second cross bar 4. A vertical support rod 2 is provided on the upper surface of the base 1. The first cross bar 3 and the second cross bar 4 are both laterally arranged on the support rod 2. The second cross bar 4 is located at the top of the support rod 2. The second cross bar 4 is located above the first cross bar 3. Left and right pulleys 5 are fixed on the second cross bar 4. A thin rope 6 is wound between the two pulleys 5. A first round bead 7 is hung at the left end of the thin rope 6, and a second round bead 8 is hung at the right end of the thin rope 6. A through hole 31 is opened on the first cross bar 3. The through hole 31 is located just above the second round bead 8. The thin rope 6 passes through the through hole 31 so that the thin rope 6 can move up and down in the through hole 31 in the vertical direction. The outer diameter of the second round bead 8 is larger than the diameter of the through hole 31. The mass of the first round bead 7 is larger than the mass of the second round bead 8. The first cross bar 3 is slidably connected to the support rod 2 by one or more of a buckle, a hoop, a pin or a height adjustment nut, and also includes a barrel body 9 for containing the sample to be tested. The first cross bar 3 is provided with a notch 32 connected to the through hole 31, and the notch 32 is used to allow the thin rope 6 to laterally enter and exit the through hole 31 in the first cross bar 3. The pulley 5 is provided with a groove. A sound-making device 33 is provided on the first cross bar above the second round ball 8, and the sound-making device 33 is used to collide with the second round ball 8 and make a sound. The sound-making device 33 is a hollow circular arc body made of copper. The sound-making device 33 is installed in the through hole 31. The bottom of the sound-making device 33 is flush with the lower surface of the first cross bar 3. The sound-making device 33 is provided with a small hole 331 that runs through the sound-making device 33, so that the thin rope 6 can move up and down in the small hole 331 in the vertical direction. The thin rope 6 is provided with a scale.

[0027] The present invention also provides a method for using an ink anti-sedimentation performance testing device, comprising the following steps:

[0028] (1) Low temperature storage: put the ink sample into the barrel 9, seal the barrel 9, and store it at 3.5°C-4.5°C for 6-8 days;

[0029] (2) Stand at room temperature: Stand at 22℃-25℃ for 3h-5h;

[0030] (3) Sample testing: 1) Static ink measurement: open the barrel 9, adjust the position of the second ball 8 so that the string 6 can move upward in the through hole 31 for a distance A, and adjust the position of the barrel 9 so that the first ball 8 contacts the surface of the ink sample, and measure and record the time 1 required for the first ball 8 to fall vertically when the ink sample falls for a distance A; 2) Uniform ink measurement: stir the ink sample after the static ink measurement, and then let it stand for 8-12 minutes. Use the method in step 1) to measure and record the time 2 required for the first ball 8 to fall vertically when the ink sample falls for a distance A;

[0031] (4) Calculate the ratio of time 1 to time 2.

[0032] Furthermore, in the step (3), the vertical falling distance A of the first ball 8 in the ink sample is 0.2 to 0.8 times the depth of the ink sample.

[0033] The method for using the ink anti-precipitation performance testing device is used to test the precipitation performance of commonly used white alcohol-soluble gravure printing ink, yellow alcohol-soluble gravure printing ink, red alcohol-soluble gravure printing ink, blue alcohol-soluble gravure printing ink, black alcohol-soluble gravure printing ink, bright red alcohol-soluble gravure printing ink, light yellow alcohol-soluble gravure printing ink and rose-red alcohol-soluble gravure printing ink:

[0034] Example 1: A method for using an ink anti-sedimentation performance testing device, comprising the following steps:

[0035] (1) Low-temperature standing: Place the white alcohol-soluble gravure printing ink sample into the barrel 9, seal the barrel 9, and stand it at 3.5°C for 6 days;

[0036] (2) Stand at room temperature: Stand at 22°C for 3 hours;

[0037] (3) Sample testing: 1) Static ink measurement: open the barrel 9, adjust the position of the second ball 8 so that the string 6 can move upward in the through hole 31 for a distance A, which is 0.2 times the depth of the ink sample. At the same time, adjust the position of the barrel 9 so that the first ball 8 contacts the surface of the ink sample. Measure and record the time 1 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A. 2) Uniform ink measurement: stir the ink sample after the static ink measurement, and let it stand for another 8 minutes. Use the method in step 1) to measure and record the time 2 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A.

[0038] (4) Calculate the ratio of time 1 to time 2.

[0039] Example 2: A method for using an ink anti-sedimentation performance testing device, comprising the following steps:

[0040] (1) Low-temperature standing: Place the yellow alcohol-soluble gravure printing ink sample into the barrel 9, seal the barrel 9, and stand it at 4.5°C for 8 days;

[0041] (2) Stand at room temperature: Stand at 25°C for 5 hours;

[0042] (3) Sample testing: 1) Static ink measurement: open the barrel 9, adjust the position of the second ball 8, so that the string 6 can move upward in the through hole 31 for a distance A, which is 0.8 times the depth of the ink sample. At the same time, adjust the position of the barrel 9 so that the first ball 8 contacts the surface of the ink sample. Measure and record the time 1 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A. 2) Uniform ink measurement: stir the ink sample after the static ink measurement, and let it stand for 12 minutes. Use the method in step 1) to measure and record the time 2 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A.

[0043] (4) Calculate the ratio of time 1 to time 2.

[0044] Example 3: A method for using an ink anti-sedimentation performance testing device, comprising the following steps:

[0045] (1) Low-temperature standing: Place the red alcohol-soluble gravure printing ink sample into the barrel 9, seal the barrel 9, and stand it at 4°C for 7 days;

[0046] (2) Stand at room temperature: Stand at 23°C for 4 hours;

[0047] (3) Sample testing: 1) Static ink measurement: open the barrel 9, adjust the position of the second ball 8 so that the string 6 can move upward in the through hole 31 for a distance A, which is 0.5 times the depth of the ink sample. At the same time, adjust the position of the barrel 9 so that the first ball 8 contacts the ink sample liquid surface, and measure and record the time 1 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A; 2) Uniform ink measurement: stir the ink sample after the static ink measurement, and let it stand for 10 minutes. Use the method in step 1) to measure and record the time 2 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A;

[0048] (4) Calculate the ratio of time 1 to time 2.

[0049] Example 4: A method for using an ink anti-sedimentation performance testing device, comprising the following steps:

[0050] (1) Low-temperature standing: put the blue alcohol-soluble gravure printing ink sample into the barrel 9, seal the barrel 9, and stand it at 3.8°C for 7 days;

[0051] (2) Stand at room temperature: Stand at 24°C for 4 hours;

[0052] (3) Sample testing: 1) Static ink measurement: open the barrel 9, adjust the position of the second ball 8 so that the string 6 can move upward in the through hole 31 for a distance A, which is 0.6 times the depth of the ink sample. At the same time, adjust the position of the barrel 9 so that the first ball 8 contacts the surface of the ink sample. Measure and record the time 1 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A. 2) Uniform ink measurement: stir the ink sample after the static ink measurement, and let it stand for another 9 minutes. Use the method in step 1) to measure and record the time 2 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A.

[0053] (4) Calculate the ratio of time 1 to time 2.

[0054] Example 5: A method for using an ink anti-sedimentation performance testing device, comprising the following steps:

[0055] (1) Low-temperature standing: Place the black alcohol-soluble gravure printing ink sample into the barrel 9, seal the barrel 9, and stand it at 3.7°C for 6.5 days;

[0056] (2) Stand at room temperature: Stand at 25°C for 3.5 hours;

[0057] (3) Sample testing: 1) Static ink measurement: open the barrel 9, adjust the position of the second ball 8 so that the string 6 can move upward in the through hole 31 for a distance A, which is 0.6 times the depth of the ink sample. At the same time, adjust the position of the barrel 9 so that the first ball 8 contacts the surface of the ink sample. Measure and record the time 1 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A. 2) Uniform ink measurement: stir the ink sample after the static ink measurement, and let it stand for 10 minutes. Use the method in step 1) to measure and record the time 2 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A.

[0058] (4) Calculate the ratio of time 1 to time 2.

[0059] Example 6: A method for using an ink anti-sedimentation performance testing device, comprising the following steps:

[0060] (1) Low-temperature standing: Place the bright red alcohol-soluble gravure printing ink sample into the barrel 9, seal the barrel 9, and stand it at 4.2°C for 7 days;

[0061] (2) Stand at room temperature: Stand at 23°C for 4.5 hours;

[0062] (3) Sample testing: 1) Static ink measurement: open the barrel 9, adjust the position of the second ball 8 so that the string 6 can move upward in the through hole 31 for a distance A, which is 0.7 times the depth of the ink sample. At the same time, adjust the position of the barrel 9 so that the first ball 8 contacts the surface of the ink sample. Measure and record the time 1 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A. 2) Uniform ink measurement: stir the ink sample after the static ink measurement, and let it stand for another 9 minutes. Use the method in step 1) to measure and record the time 2 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A.

[0063] (4) Calculate the ratio of time 1 to time 2.

[0064] Example 7: A method for using an ink anti-sedimentation performance testing device, comprising the following steps:

[0065] (1) Low-temperature standing: Place the light yellow alcohol-soluble gravure printing ink sample into the barrel 9, seal the barrel 9, and stand it at 3.9°C for 6.8 days;

[0066] (2) Stand at room temperature: Stand at 23°C for 4 hours;

[0067] (3) Sample testing: 1) Static ink measurement: open the barrel 9, adjust the position of the second ball 8 so that the string 6 can move upward in the through hole 31 for a distance A, which is 0.7 times the depth of the ink sample. At the same time, adjust the position of the barrel 9 so that the first ball 8 contacts the surface of the ink sample. Measure and record the time 1 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A. 2) Uniform ink measurement: stir the ink sample after the static ink measurement, and let it stand for another 9 minutes. Use the method in step 1) to measure and record the time 2 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A.

[0068] (4) Calculate the ratio of time 1 to time 2.

[0069] Example 8: A method for using an ink anti-sedimentation performance testing device, comprising the following steps:

[0070] (1) Low-temperature standing: Put the rose-red alcohol-soluble gravure printing ink sample into the barrel 9, seal the barrel 9, and stand it at 3.9°C for 7 days;

[0071] (2) Stand at room temperature: Stand at 23°C for 4 hours;

[0072] (3) Sample testing: 1) Static ink measurement: open the barrel 9, adjust the position of the second ball 8 so that the string 6 can move upward in the through hole 31 for a distance A, which is 0.5 times the depth of the ink sample. At the same time, adjust the position of the barrel 9 so that the first ball 8 contacts the surface of the ink sample. Measure and record the time 1 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A. 2) Uniform ink measurement: stir the ink sample after the static ink measurement, and let it stand for another 9 minutes. Use the method in step 1) to measure and record the time 2 required for the first ball 8 to drop vertically when the ink sample drops vertically for a distance A.

[0073] (4) Calculate the ratio of time 1 to time 2.

[0074] Table 1 below gives the repeatability and reproducibility test results of the alcohol-soluble gravure printing ink test experiments of Examples 1-8:

[0075]

[0076] From the repeatability and reproducibility test results of the alcohol-soluble gravure printing ink test experiments of Examples 1-8, it can be seen that the anti-sedimentation performance of the ink can be accurately evaluated using the device and the use method of the present invention, and the repeatability and reproducibility are good.

[0077] The method of using the above-mentioned ink anti-sedimentation performance testing device is also used to test the sedimentation performance of iron printing ink, ordinary UV white ink and ordinary UV black ink, ester gold powder ink, and new water-based UV yellow ink and new water-based UV blue ink, and cloth printing yellow ink that are not easy to precipitate and are commonly used on the market.

[0078] Table 2 below gives the repeatability and reproducibility test results of the test experiments of the tinplate ink, ordinary UV white ink, ordinary UV black ink, new water-based UV yellow ink, new water-based UV blue ink, yellow printing ink, and ester gold powder ink of Examples 1-7:

[0079]

[0080] From Table 1 and Table 2, it can be seen that the ratio of time 1 to time 2 of commonly used inks that are easy to precipitate is in the range of 45%-65%, while the ratio of time 1 to time 2 of inks that are not easy to precipitate is in the range of 70%-90%; the anti-precipitation performance of ink can be judged by testing the precipitation performance of ink, which has a certain guiding role in the production, use and performance evaluation of ink.

[0081] The above shows and describes the basic principles and main features of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for using an ink anti-sedimentation performance testing device, characterized in that: The following steps are involved: (1) Low temperature storage: Place the ink sample in a sealed container and store it at 3.5°C to 4.5°C for 6 to 8 days; (2) Stand at room temperature: Stand at 22°C-25°C for 3h-5h; (3) Use the ink anti-precipitation performance test device to test the samples: The ink anti-precipitation performance testing device comprises a base, a support rod, a first cross bar and a second cross bar, the upper surface of the base is provided with a vertical support rod, the first cross bar and the second cross bar are both arranged horizontally on the support rod, the second cross bar is located at the top of the support rod, the second cross bar is located above the first cross bar, left and right pulleys are fixed on the second cross bar, a thin rope is wound between the two pulleys, a first round bead is hung at the left end of the thin rope, and a second round bead is hung at the right end of the thin rope, a through hole is opened on the first cross bar, the through hole is located just above the second round bead, the thin rope passes through the through hole, so that the thin rope can move up and down in the through hole along the vertical direction, the outer diameter of the second round bead is larger than the diameter of the through hole, and the mass of the first round bead is larger than the mass of the second round bead; The first cross bar is slidably connected to the support bar; Also included is a barrel for containing the sample to be tested; 1) Static ink measurement: open the container, adjust the position of the second ball so that the string can move upward in the through hole for a distance A, and adjust the position of the container so that the first ball contacts the surface of the ink sample. Measure and record the time 1 required for the first ball to vertically drop the ink sample for a distance A; 2) Uniform ink measurement: Stir the ink sample after the static ink measurement evenly, and then let it stand for 8-12 minutes. Use the method in step 1) to measure and record the time 2 required for the first ball to fall vertically when the ink sample has a vertical drop distance of A; (4) Calculate the ratio of time 1 to time 2. The closer the ratio is to 100%, the better the anti-precipitation property of the sample.

2. The method for using the ink anti-sedimentation performance testing device according to claim 1, characterized in that: The first crossbar is provided with a notch connected to the through hole, and the notch is used to allow the thin rope to enter and exit the through hole in the first crossbar laterally.

3. The method for using the ink anti-sedimentation performance testing device according to claim 1, characterized in that: The pulley is provided with a groove.

4. The method for using the ink anti-sedimentation performance testing device according to claim 1, characterized in that: A sound-generating device is arranged on the first cross bar above the second round bead, and the sound-generating device is used for colliding with the second round bead and making a sound.

5. The method for using the ink anti-sedimentation performance testing device according to claim 4, characterized in that: The sound-generating device is a drum or a metal sheet.

6. The method for using the ink anti-sedimentation performance testing device according to claim 1, characterized in that: The thin rope is provided with scales.

7. The method for using the ink anti-sedimentation performance testing device according to claim 1, characterized in that: In the step (3), the vertical falling distance A of the first ball in the ink sample is 0.2 to 0.8 times the depth of the ink sample.

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