Anti-layering multicolor propylene mark pen

Abstract

The invention relates to the technical field of mark pens, in particular to an anti-layering multicolor propylene mark pen which solves the problems that when the mark pen is used, ink is often settled or condensed due to the fact that the mark pen is not used for a long time, the mark pen cannot be used for writing, and the ink cannot be continuously added into the mark pen after the ink is used up. An ink bin is arranged in the mark pen shell, and the ink bin is filled with layering-resistant multi-color propylene ink. The anti-layering multicolor propylene ink comprises the following components in percentage by mass: 15-22% of titanium dioxide, 0-6% of color paste, 50-60% of acrylic resin, 30-50% of water, 0.5-3% of water-soluble resin, 0.03-2% of a surfactant, 7-12% of other auxiliaries, 3-6% of an interphase regulator and 2-3% of a penetrant. Through the synergistic effect of the penetrant, the high-molecular polymer and the like added into the anti-layering multicolor propylene ink, the problem of edge permeation generated in the permeation process is solved.

Description

Technical Field

[0001] The invention relates to the technical field of marker pens, in particular to a multi-color acrylic marker pen that resists delamination. Background Art

[0002] Marker pen, also known as marker pen. It is a kind of colored drawing pen used for writing or drawing. It contains ink and usually comes with a cap. It usually has a hard or soft pen head and a double head, one small head and the other large head.

[0003] The color paste of the marker pen is volatile and is used for quick one-time drawing. It is often used in designing objects, advertising slogans, posters or other art creations. It can draw thicker lines with little variation. The box-head pen is a type of marker pen. Markers are also divided into water-based and oil-based inks. Water-based inks are similar to colored pens and do not contain oil essence. Oil-based inks contain oil essence, so they have a more irritating smell and are more volatile. If the paint on a toy falls off, you can use a marker pen to recolor it.

[0004] When using existing markers, the ink often settles or condenses due to long-term non-use, which makes the marker unable to write, and the ink cannot be added to the inside after it is used up; therefore, it does not meet the existing needs. In this regard, we propose a multi-color acrylic marker that resists delamination. Summary of the invention

[0005] The object of the present invention is to provide a multi-color acrylic marker pen that resists delamination, so as to solve the problems that the marker pen proposed in the above background technology often causes ink sedimentation or condensation due to long-term non-use, thereby causing the marker pen to be unable to write, and ink cannot be added to the inside after the ink is used up.

[0006] To achieve the above object, the present invention provides the following technical solution: an anti-delamination multi-color acrylic marker, comprising a marker housing, an ink tank is provided inside the marker housing, and the ink tank is filled with anti-delamination multi-color acrylic ink, wherein the anti-delamination multi-color acrylic ink comprises the following components by mass percentage:

[0007] Titanium dioxide 15-22%, color paste 0-6%, dispersant 0.8-2%, thickener 2-4%, acrylic resin 15-38%, deionized water 20-50%, emulsifier 4-5%, defoamer 5.5-9%, water-soluble resin 0.5-3%, surfactant 0.03-2%, polymer additive 4-6%, film-forming additive 3-6%, phase regulator 3-6%, penetrant 2-3%.

[0008] Preferably, the anti-stratification multi-color acrylic ink includes the following components in mass percentage: 20% titanium dioxide, 4% color paste, 1.5% dispersant, 3% thickener, 20% acrylic resin, 23.5% deionized water, 4% emulsifier, 6% defoamer, 2% water-soluble resin, 1% surfactant, 3% polymer additive, 4% film-forming additive, 5% phase regulator, and 3% penetrant.

[0009] Preferably, the dispersant is wrapped on the surface of titanium dioxide by surface activity or physical adsorption, the particle size of the titanium dioxide is in the range of 40-60nm, and the density of the titanium dioxide is 4170kg / m 3 The fluid viscosity of the anti-delamination multi-color acrylic ink is 1cp, the titanium dioxide is surface treated with fluorine gas during preparation, and the dispersant contains at least one of the following components: polyacrylate, polyethylene glycol and polyoxyethylene ether.

[0010] Preferably, the water-soluble resin comprises at least one of the following components: acrylic emulsion and polyamine resin.

[0011] Preferably, the phase regulator comprises an amphiphilic polymer and polyvinyl alcohol, the amphiphilic polymer comprises at least one of the following components: octylphenol polyoxyethylene ether and ammonium polyacrylate, and the penetrant is sodium salt of dioctyl sulfonate succinate.

[0012] Preferably, the method for preparing the anti-stratification multi-color acrylic ink comprises the following steps:

[0013] Step (A), pouring acrylic resin, phase regulator, water-soluble resin and deionized water into a first stirring device, and maintaining the stirring speed at 1200r / min, the stirring time at 25min, and the temperature at 30°C, a uniform resin solution can be obtained, and charged groups can be introduced into the acrylic resin structure to reduce the aggregation of titanium dioxide through electrostatic repulsion, and the charged particles can prevent the attraction between particles and reduce the aggregation of particles through the repulsion of like charges;

[0014] Step (B), pouring a color paste of the desired color, a surfactant, a thickener, titanium dioxide coated with a dispersant and deionized water into a second stirring device, and maintaining the stirring speed at 4800r / min, the stirring time at 50min, and the temperature at 30°C to obtain a uniform and stable pigment dispersion liquid to ensure that the particles of the ink system are dispersed, and the dispersant is wrapped on the surface of the titanium dioxide through surface activity or physical adsorption to prevent the precipitation and agglomeration of the titanium dioxide particles and form a stable dispersion system;

[0015] Step (C), mixing the resin solution and the pigment dispersion liquid, pouring them into a third stirring device, and maintaining the stirring speed at 3000 r / min, the time for 60 min, the temperature at 30° C., and sequentially adding a polymer additive, a defoamer and an emulsifier during the stirring process;

[0016] Step (D), during step (C), film-forming aids and penetrants are added to adjust the physical and chemical properties of the finished ink. After the finished ink is filtered to remove impurities through a filtering device, the ink is stored through filling and then added to the ink tank through a filling device.

[0017] Preferably, ink adding holes are provided on the top and bottom surfaces of the inner wall of the ink tank, four fixing rods are fixedly installed at positions near the ink adding holes inside the ink tank, the ends of the fixing rods are fixedly connected to a fixing platform, a curved top plate is slidably installed on the surface of the fixing platform facing the ink adding holes, the surface of the curved top plate is fitted with the surface of the ink adding holes, a spring groove is provided on the bottom surface of the curved top plate, a lifting groove is provided on the surface of the fixed platform, the curved top plate is slidably inserted into the interior of the lifting groove, and micro springs are movably installed between the curved top plate and the interior of the lifting groove.

[0018] Preferably, the top and bottom surfaces of the marker pen housing are provided with housing outer grooves, movable flaps are rotatably installed inside the housing outer grooves, the ink filling holes pass through the inner surface of the housing outer grooves, a plugging head is fixedly installed at the center of one side of the movable flap facing the ink filling hole, the plugging head is movably inserted into the interior of the ink filling hole, and the plugging head is made of flexible material.

[0019] Preferably, the inner surface of the outer groove of the shell is provided with two bracket receiving grooves, and the inside of the bracket receiving groove is rotatably installed with a movable bracket, the surface of the movable flip cover is provided with two limiting grooves, one end of the movable bracket is movably inserted into the inside of the limiting groove, and the two ends of the marker pen shell are respectively movably installed with a wide pen head and a thin pen head, and the two ends of the inside of the marker pen shell are fixedly installed with an ink absorption rod, one end of the ink absorption rod is connected to the wide pen head and the thin pen head, and the other end of the ink absorption rod is movably inserted into the inside of the ink tank.

[0020] Preferably, an ink observation window is provided on the front side surface of the marker pen housing, a transparent plastic is fixedly installed inside the ink observation window, a plurality of balls are provided inside the ink tank, the diameter of the balls is larger than the diameter of the ink filling hole, pen caps are movably installed on both ends of the marker pen housing, plastic convex rings are fixedly installed inside the pen caps, annular grooves are provided on the outer surfaces of both ends of the marker pen housing, and the plastic convex rings are movably inserted into the inside of the annular grooves.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention solves the edge seepage problem caused by the penetration process by adding penetrants, high molecular polymers and the like to the anti-stratification multi-color acrylic ink components, and can prevent the precipitation and agglomeration of titanium dioxide particles and form a stable dispersion system by wrapping the dispersant on the surface of titanium dioxide through surface activity or physical adsorption. In addition, charged groups are introduced into the acrylic resin structure to reduce the aggregation of titanium dioxide through electrostatic repulsion. Charged particles prevent attraction between particles and reduce particle aggregation through the repulsion of like charges.

[0023] 2. The present invention cooperates with the ink observation window and the ink adding hole so that when the device is in use, the ink content inside the ink tank can be observed through the ink observation window. When the ink content is low and the device cannot be used, the device can be continued to be used by adding ink to the ink tank through the ink adding hole, thereby increasing the service life of the device;

[0024] 3. The present invention cooperates with the plugging head and the curved top plate so that when the device adds ink to the ink tank, the movable cover must first be rotated outward from the outer groove of the shell, and then the movable bracket is pulled out to support the movable cover to prevent the movable cover from rotating back to the outer groove of the shell. At this time, a straw must be inserted into the ink adding hole so that the straw is against the surface of the curved top plate, and the curved top plate is pressed down and retracted into the lifting groove to open the gap between the ink adding hole and the ink tank. At this time, ink can be added to the inside through the straw, so that the movable cover is prevented from leaking ink due to accidental opening when the device is in use;

[0025] 4. The present invention provides a ball so that when the device is in use, the user can grab the device by hand and shake the device at will, causing the ball to shake inside the ink tank and hit the ink. This can prevent the ink from condensing inside the ink tank and causing the device to become unusable when the device is not used for a long time. The ink inside the ink tank can be hit and stirred by the ball to prevent the ink from condensing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 A cross-sectional front view of the present invention as a whole;

[0028] Figure 3 It is a cross-sectional front view of the position of the movable support of the present invention;

[0029] Figure 4 A sectional side view of the present invention as a whole;

[0030] Figure 5 For the present invention Figure 4 Schematic diagram of the local structure of part A;

[0031] Figure 6 Schematic diagram of the effect of the titanium dioxide particle size on the ink settling velocity of the present invention;

[0032] Figure 7 It is a schematic diagram of the effect of the viscosity of titanium dioxide on the sedimentation velocity of ink of the present invention;

[0033] Figure 8 It is a schematic diagram of the effect of the density of titanium dioxide on the sedimentation velocity of ink of the present invention;

[0034] Fig. 9 This is a transmission electron microscope image of the multi-color acrylic ink that resists delamination of the present invention.

[0035] In the figure: 1. Mark pen body; 2. Pen cap; 3. Ink observation window; 4. Outer groove of the body; 5. Movable flip cover; 6. Ink filling hole; 7. Plug head; 8. Movable bracket; 9. Wide pen tip; 10. Thin pen tip; 11. Ink absorption rod; 12. Ink tank; 13. Ball; 14. Bracket storage slot; 15. Fixed rod; 16. Fixed platform; 17. Lifting slot; 18. Micro spring; 19. Arc top plate; 20. Limiting slot; 21. Plastic convex ring; 22. Circular ring slot. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] See also Figures 1 to 9 The present invention provides an embodiment: a multi-color acrylic marker pen with anti-delamination, comprising a marker pen housing 1, an ink tank 12 is provided inside the marker pen housing 1, and the ink tank 12 is filled with multi-color acrylic ink with anti-delamination, and the multi-color acrylic ink with anti-delamination includes the following components by mass percentage:

[0038] Titanium dioxide 15-22%, color paste 0-6%, dispersant 0.8-2%, thickener 2-4%, acrylic resin 15-38%, deionized water 20-50%, emulsifier 4-5%, defoamer 5.5-9%, water-soluble resin 0.5-3%, surfactant 0.03-2%, polymer additive 4-6%, film-forming additive 3-6%, phase regulator 3-6%, penetrant 2-3%.

[0039] The anti-delamination multi-color acrylic ink includes the following components in percentage by mass: 20% titanium dioxide, 4% color paste, 1.5% dispersant, 3% thickener, 20% acrylic resin, 23.5% deionized water, 4% emulsifier, 6% defoamer, 2% water-soluble resin, 1% surfactant, 3% polymer additive, 4% film-forming additive, 5% phase regulator, and 3% penetrant.

[0040] Since the movement of the color paste particles in the ink is affected by the combined action of Brownian motion and external force, the sedimentation performance of the color paste particles will be affected;

[0041] The characteristics of Brownian motion are randomness, continuity, temperature dependence, and also related to particle size and fluid viscosity. In theory, Brownian motion can occur at any temperature except absolute zero and continue forever; the higher the temperature, the smaller the particles, and the lower the viscosity, the more obvious the Brownian motion. In physics, Brownian motion can be described by Einstein's diffusion equation:

[0042]

[0043] Where D is the particle diffusion velocity; kB is the Boltzmann constant; T is the absolute temperature; η is the viscosity; r is the particle radius;

[0044] Brownian motion is an intrinsic motion of the system. This irregular thermal motion mainly affects the merging and dispersion behavior between particles, thereby indirectly affecting the particle sedimentation behavior.

[0045] The external forces that affect the sedimentation of particles in ink mainly include gravity and mechanical force. Gravity causes the particles to sink, while mechanical force prevents the aggregation of particles by enhancing dispersion or demulsifies the system, causing the particles to settle faster. The sedimentation force during ink storage mainly comes from gravity, which can be described by the Stokes equation:

[0046]

[0047] Where v is the particle settling velocity; g is the gravitational acceleration; ρ1 and ρ2 are the densities of the particle and liquid phase, respectively; r is the particle radius; μ is the fluid phase viscosity;

[0048] From formula 2, we can see that the larger the particle size, the faster the sedimentation rate; the greater the viscosity, the slower the sedimentation rate; the closer the density of the particle and the fluid phase, the closer the sedimentation rate is to zero. Therefore, reducing the particle size of titanium dioxide, increasing the viscosity of the fluid phase, or reducing the density difference between the two phases can affect the sedimentation rate. Please refer to Figures 6 to 8 :

[0049] in Figure 6 The relationship between the settling time and the particle diameter when the fixed viscosity of titanium dioxide is 1cp and the density is 4170kg / m3;

[0050] Figure 7 The relationship between sedimentation time and viscosity when the particle diameter of titanium dioxide is fixed at 100nm and the density is 4170kg / m3;

[0051] Figure 8 This is the relationship between sedimentation time and particle density when the fixed viscosity of titanium dioxide is 1cp and the particle diameter is 100nm.

[0052] The acrylic resin can be an amphiphilic acrylic resin, which can reasonably balance the affinity of the acrylic resin to the water phase and the affinity to the titanium dioxide phase. At this time, the acrylic resin plays a "bridge" role, connecting the titanium dioxide phase and the water phase, effectively increasing the movement resistance of the titanium dioxide to leave the water phase and sink, which helps to disperse the titanium dioxide in the aqueous medium.

[0053] When acrylic resin forms a three-dimensional network structure in ink, acrylic resin with a relatively high molecular weight can significantly increase the resistance of titanium dioxide to sinking. However, while high molecular weight resin improves the dispersibility and stability of titanium dioxide, it also increases the flow resistance of ink through the pen tip when writing. Generally, acrylic resin with a wider molecular weight distribution or stronger shear thinning performance can reconcile the contradiction between the two, so acrylic resin with a relatively strong molecular weight distribution or shear thinning performance is selected as the preparation material.

[0054] The cross-linked structure is beneficial to increase the sedimentation resistance of titanium dioxide. Commonly used cross-linked monomers for acrylic resins include glycidyl methacrylate, N-hydroxymethyl acrylamide, hydroxyethyl methacrylate, vinyl triisopropoxy silane, diacetone acrylamide-adipic acid dihydrazide, etc. However, cross-linking also increases the viscosity of the system and deteriorates the fluidity. For ink systems, lightly cross-linked or physically cross-linked acrylic resins should generally be selected. This cross-linking method allows the acrylic resin to form a three-dimensional network structure in the system when it is stationary, increasing the sedimentation resistance of titanium dioxide, while when the system flows, the cross-linking points are disconnected.

[0055] The dispersant is wrapped on the surface of titanium dioxide through surface activity or physical adsorption. The particle size of titanium dioxide is in the range of 40-60nm and the density of titanium dioxide is 4170kg / m 3 The fluid viscosity of the anti-delamination multi-color acrylic ink is 1 cp, the titanium dioxide is surface treated by fluorine gas during preparation, and the dispersant contains at least one of the following components: polyacrylate, polyethylene glycol and polyoxyethylene ether.

[0056] By limiting the particle size of titanium dioxide to 40-60 nm and making the fluid viscosity 1 cp, the sedimentation tendency of titanium dioxide can be effectively reduced according to Formula 2.

[0057] Titanium dioxide is surface treated or hydrophilic-lipophilic modified to make it more hydrophilic or acrylic resin-friendly.

[0058] By using dispersants, the aggregation of titanium dioxide can be effectively reduced, and the rheology and storage stability of the ink can be improved.

[0059] The sedimentation rate of titanium dioxide can be reduced by adding thickeners. Due to the requirements of ink usage characteristics, it is hoped that the thickener will form a three-dimensional network structure in a static state to help stabilize the dispersion system; and under shearing, the structure is destroyed and the viscosity is reduced to ensure smooth writing. Thixotropic thickeners or hydrogen bond thickeners are selected as thickeners.

[0060] The aggregation of titanium dioxide can be reduced by introducing charged groups into the acrylic resin structure through electrostatic repulsion.

[0061] The water-soluble resin comprises at least one of the following components: an acrylic emulsion and a polyamine resin.

[0062] The phase regulator comprises an amphiphilic polymer and polyvinyl alcohol, the amphiphilic polymer comprises at least one of the following components: octylphenol polyoxyethylene ether and ammonium polyacrylate, and the penetrant is sodium salt of dioctyl sulfonated succinate.

[0063] The preparation method of anti-stratification multi-color acrylic ink comprises the following steps:

[0064] Step (A), pouring acrylic resin, phase regulator, water-soluble resin and deionized water into a first stirring device, and maintaining the stirring speed at 1200r / min, the stirring time at 25min, and the temperature at 30°C, a uniform resin solution can be obtained, and charged groups can be introduced into the acrylic resin structure to reduce the aggregation of titanium dioxide through electrostatic repulsion, and the charged particles can prevent the attraction between particles and reduce the aggregation of particles through the repulsion of like charges;

[0065] Step (B), pouring a color paste of the desired color, a surfactant, a thickener, titanium dioxide coated with a dispersant and deionized water into a second stirring device, and maintaining the stirring speed at 4800r / min, the stirring time at 50min, and the temperature at 30°C to obtain a uniform and stable pigment dispersion liquid to ensure that the particles of the ink system are dispersed, and the dispersant is wrapped on the surface of the titanium dioxide through surface activity or physical adsorption to prevent the precipitation and agglomeration of the titanium dioxide particles and form a stable dispersion system;

[0066] Step (C), mixing the resin solution and the pigment dispersion liquid, pouring them into a third stirring device, and maintaining the stirring speed at 3000 r / min, the time for 60 min, the temperature at 30° C., and sequentially adding a polymer additive, a defoamer and an emulsifier during the stirring process;

[0067] Step (D), during step (C), film-forming aids and penetrants are added to adjust the physical and chemical properties of the finished ink. After the finished ink is filtered to remove impurities through a filtering device, the ink is stored through filling and then added to the ink tank 12 through a filling device.

[0068] The top and bottom surfaces of the inner wall of the ink tank 12 are provided with ink adding holes 6, and four fixing rods 15 are fixedly installed at the positions near the ink adding holes 6 inside the ink tank 12. The ends of the fixing rods 15 are fixedly connected to fixing platforms 16, and the fixed platforms 16 are slidably installed with arc top plates 19 on the side surface facing the ink adding holes 6. The surface of the arc top plates 19 fits the surface of the ink adding holes 6, and the bottom surface of the arc top plates 19 is provided with spring grooves. The surface of the fixing platforms 16 is provided with lifting grooves 17, and the arc top plates 19 are slidably inserted into the inside of the lifting grooves 17. Micro springs 18 are movably installed between the arc top plates 19 and the inside of the lifting grooves 17.

[0069] The top and bottom surfaces of the marker pen housing 1 are both provided with a housing outer groove 4, and a movable flap 5 is rotatably installed inside the housing outer groove 4. The ink filling holes 6 all penetrate the inner surface of the housing outer groove 4, and a plugging head 7 is fixedly installed at the center of one side of the movable flap 5 facing the ink filling hole 6. The plugging head 7 is movably inserted into the inside of the ink filling hole 6, and the plugging head 7 is made of flexible material.

[0070] Two bracket receiving grooves 14 are provided on the inner surface of the outer groove 4 of the shell, and movable brackets 8 are rotatably installed inside the bracket receiving grooves 14. Two limiting grooves 20 are provided on the surface of the movable flip cover 5, and one end of the movable bracket 8 is movably inserted into the inside of the limiting groove 20. A wide pen head 9 and a thin pen head 10 are movably installed at both ends of the marker pen shell 1, and an ink absorption rod 11 is fixedly installed at both ends of the inside of the marker pen shell 1. One end of the ink absorption rod 11 is connected to the wide pen head 9 and the thin pen head 10, and the other end of the ink absorption rod 11 is movably inserted into the inside of the ink tank 12.

[0071] An ink observation window 3 is provided on the front side surface of the marker pen housing 1, and a transparent plastic is fixedly installed inside the ink observation window 3. A plurality of balls 13 are provided inside the ink tank 12, and the diameter of the balls 13 is larger than the diameter of the ink filling hole 6. Pen caps 2 are movably installed at both ends of the marker pen housing 1, and plastic convex rings 21 are fixedly installed inside the pen caps 2. Circular grooves 22 are provided on the outer surfaces of both ends of the marker pen housing 1, and the plastic convex rings 21 are movably inserted into the inside of the circular grooves 22.

[0072] When the multi-color acrylic marker pen with anti-layering is used, the ink content in the ink tank 12 can be observed through the ink observation window 3. When the ink content is low and the device cannot be used, the device can be continued to be used by adding ink to the ink tank 12 through the ink adding hole 6, thereby increasing the service life of the device.

[0073] When the device is adding ink to the ink tank 12, the movable flap 5 must be first rotated outward from the outer groove 4 of the shell, and then the movable bracket 8 must be pulled out to support the movable flap 5 to prevent the movable flap 5 from rotating back to the outer groove 4 of the shell. At this time, a straw must be inserted into the ink filling hole 6 so that the straw is against the surface of the curved top plate 19, and the curved top plate 19 is pressed down and retracted into the lifting groove 17, thereby opening the gap between the ink filling hole 6 and the ink tank 12. At this time, ink can be added to the inside through the straw to prevent the movable flap 5 from leaking due to accidental opening when the device is in use.

[0074] When the device is not used for a long time, you can grab the device with your hands and shake it at will, so that the ball 13 will shake inside the ink tank 12 and hit the ink. This can prevent the ink from condensing inside the ink tank 12 and making the device unusable when the device is not used for a long time. The ball 13 can be used to impact and stir the ink inside the ink tank 12 to prevent the ink from condensing.

[0075] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A multi-color acrylic marker pen with anti-delamination properties, comprising a marker pen housing (1), wherein an ink tank (12) is provided inside the marker pen housing (1), and the ink tank (12) is filled with multi-color acrylic ink with anti-delamination properties, characterized in that: The anti-stratification multi-color acrylic ink comprises the following components by mass percentage: 15-22% titanium dioxide, 0-6% color paste, 0.8-2% dispersant, 2-4% thickener, 15-38% acrylic resin, 20-50% deionized water, 4-5% emulsifier, 5.5-9% defoamer, 0.5-3% water-soluble resin, 0.03-2% surfactant, 4-6% polymer additive, 3-6% film-forming additive, 3-6% interphase regulator and 2-3% penetrant.

2. The anti-delamination multi-color acrylic marker according to claim 1, characterized in that: The anti-stratification multi-color acrylic ink includes the following components by mass percentage: 20% titanium dioxide, 4% color paste, 1.5% dispersant, 3% thickener, 20% acrylic resin, 23.5% deionized water, 4% emulsifier, 6% defoamer, 2% water-soluble resin, 1% surfactant, 3% polymer additive, 4% film-forming additive, 5% interphase regulator, and 3% penetrant.

3. The multi-color acrylic marker pen with anti-delamination properties according to claim 1, characterized in that: The dispersant is wrapped on the surface of titanium dioxide through surface activity or physical adsorption. The particle size of the titanium dioxide is in the range of 40-60nm, and the density of the titanium dioxide is 4170kg / m 3 The fluid viscosity of the anti-delamination multi-color acrylic ink is 1cp, the titanium dioxide is surface treated with fluorine gas during preparation, and the dispersant contains at least one of the following components: polyacrylate, polyethylene glycol and polyoxyethylene ether.

4. The anti-delamination multi-color acrylic marker according to claim 1, characterized in that: The water-soluble resin comprises at least one of the following components: acrylic emulsion and polyamine resin.

5. The multi-color acrylic marker pen with anti-delamination properties according to claim 1, characterized in that: The phase regulator comprises an amphiphilic polymer and polyvinyl alcohol, wherein the amphiphilic polymer comprises at least one of the following components: octylphenol polyoxyethylene ether and ammonium polyacrylate, and the penetrant is sodium salt of dioctyl sulfonate succinate.

6. The multi-color acrylic marker pen with anti-delamination properties according to claim 1, characterized in that: The method for preparing the anti-stratification multi-color acrylic ink comprises the following steps: Step (A), pouring acrylic resin, phase regulator, water-soluble resin and deionized water into a first stirring device, and maintaining the stirring speed at 1200r / min, the stirring time at 25min, and the temperature at 30°C, a uniform resin solution can be obtained, and charged groups can be introduced into the acrylic resin structure to reduce the aggregation of titanium dioxide through electrostatic repulsion, and the charged particles can prevent the attraction between particles and reduce the aggregation of particles through the repulsion of like charges; Step (B), pouring a color paste of the desired color, a surfactant, a thickener, titanium dioxide coated with a dispersant and deionized water into a second stirring device, and maintaining the stirring speed at 4800r / min, the stirring time at 50min, and the temperature at 30°C to obtain a uniform and stable pigment dispersion liquid to ensure that the particles of the ink system are dispersed, and the dispersant is wrapped on the surface of the titanium dioxide through surface activity or physical adsorption to prevent the precipitation and agglomeration of the titanium dioxide particles and form a stable dispersion system; Step (C), mixing the resin solution and the pigment dispersion liquid, pouring them into a third stirring device, and maintaining the stirring speed at 3000 r / min, the time for 60 min, the temperature at 30° C., and sequentially adding a polymer additive, a defoamer and an emulsifier during the stirring process; Step (D), during step (C), a film-forming aid and a penetrant are added to adjust the physical and chemical properties of the finished ink, the finished ink is filtered through a filtering device to remove impurities, the ink is stored through filling, and then added to the ink tank (12) through a filling device.

7. The anti-delamination multi-color acrylic marker according to claim 1, characterized in that: The top and bottom surfaces of the inner wall of the ink tank (12) are both provided with ink adding holes (6), and four fixing rods (15) are fixedly installed at positions near the ink adding holes (6) inside the ink tank (12), and the ends of the fixing rods (15) are fixedly connected to a fixing platform (16), and a curved top plate (19) is slidably installed on the side surface of the fixing platform (16) facing the ink adding holes (6), and the surface of the curved top plate (19) is in contact with the surface of the ink adding holes (6), and a spring groove is provided on the bottom surface of the curved top plate (19), and a lifting groove (17) is provided on the surface of the fixing platform (16), and the curved top plate (19) is slidably inserted into the inside of the lifting groove (17), and a micro spring (18) is movably installed between the curved top plate (19) and the inside of the lifting groove (17).

8. The anti-delamination multi-color acrylic marker according to claim 7, characterized in that: The top and bottom surfaces of the marker pen housing (1) are both provided with housing outer grooves (4), the interior of the housing outer grooves (4) is rotatably provided with movable flaps (5), the ink filling holes (6) are all penetrated through the inner surface of the housing outer grooves (4), a plugging head (7) is fixedly provided at the center of one side of the movable flaps (5) facing the ink filling holes (6), the plugging heads (7) are all movably inserted into the interior of the ink filling holes (6), and the plugging heads (7) are made of flexible material.

9. The anti-delamination multi-color acrylic marker according to claim 8, characterized in that: The inner surface of the outer groove (4) of the shell is provided with two bracket receiving grooves (14), and the inside of the bracket receiving groove (14) is rotatably installed with a movable bracket (8). The surface of the movable flip cover (5) is provided with two limit grooves (20), and one end of the movable bracket (8) is movably inserted into the inside of the limit groove (20). The two ends of the marker pen shell (1) are movably installed with a wide pen head (9) and a thin pen head (10), respectively. The two ends of the marker pen shell (1) are fixedly installed with an ink absorption rod (11), one end of the ink absorption rod (11) is connected to the wide pen head (9) and the thin pen head (10), and the other end of the ink absorption rod (11) is movably inserted into the inside of the ink tank (12).

10. The anti-delamination multi-color acrylic marker according to claim 9, characterized in that: The front surface of the marker pen housing (1) is provided with an ink observation window (3), and transparent plastic is fixedly installed inside the ink observation window (3). A plurality of balls (13) are provided inside the ink storage chamber (12), and the diameter of the balls (13) is larger than the diameter of the ink filling hole (6). Pen caps (2) are movably installed at both ends of the marker pen housing (1), and plastic convex rings (21) are fixedly installed inside the pen caps (2). Circular grooves (22) are provided on the outer surfaces of both ends of the marker pen housing (1), and the plastic convex rings (21) are movably inserted into the inside of the circular grooves (22).

Images