Polymer dye blooming ink and preparation method thereof

Abstract

The invention discloses macromolecular dye blooming ink which comprises the following components: at least one water-based macromolecular dye, the addition amount of each water-based macromolecular dye is 0.5-30wt%; the addition amount of the bactericidal and mildew-proof agent is 0.1-0.3 wt%. Glycerol, the addition amount of which is 11-13wt%; the addition amount of the propylene glycol is 2-4wt%; ethylene glycol, the addition amount of which is 4-6 wt%; at least one surfactant, the addition amount of which is 0.1-0.3 wt%; and the balance of solvent. The water-based polymer dye disclosed by the invention is not easy to permeate into internal pore channels of paper, is high in hydrophilicity, can have relatively excellent solubility in water, has a film-forming property, and can weaken the binding force between the dye and paper fibers or porous surfaces, so that the ink shading effect is ensured; the selected gemini organosilicon structure surfactant has the properties of wetting, reducing static and dynamic surface tension and the like, so that the ink can achieve an excellent shading effect and a writing effect, is smooth in ink outlet, and is suitable for drawing, especially watercolor painting, Chinese painting and illustration creation.

Description

Technical Field

[0001] The present invention relates to the technical field of inks for painting and writing on paper, and particularly to a polymer dye bleedable ink suitable for painting watercolor paintings, Chinese ink paintings, illustrations, and writing soft brush calligraphy, and a production method thereof. Background Art

[0002] Polymer dye painting ink is an ink used for watercolor pens, marker pens, bleedable ink pens, art pens, scientific brushes, dip pens, etc. for painting. Polymer dye painting ink can be used in dry painting for single-color overlay to deepen the color, or for multi-color overlay to change the hue. After overlay, the color transition is natural, and the rigid brush touch can be eliminated. At the same time, it can also be used in wet painting to bleed and mix two or more colors. Polymer dye painting ink can be bled with water to make the color lighter or darker or the hue transition, and present rich watercolor textures that meet the needs of professional watercolor painting.

[0003] Water-soluble does not equal bleedable. Water-soluble only means that the original brushstrokes dissolve in water. The bleedable effect requires different degrees of mutual fusion and diffusion between colors or between color and water while the brushstrokes dissolve in water, forming a layered water pattern or color texture. There are many types of watercolor pens and marker pens on the market currently, mainly for filling colors. After bleeding with water, the color has no light or dark or color transition, no watercolor texture, and even only the line traces of the color spreading to the surrounding to form an outer contour will appear, failing to achieve the rendering effect of watercolor paintings. In the single-color overlay of dry painting with some watercolor pens and water-based marker pens, the color cannot be deepened. When two or more colors are overlaid, the color mixing is not good, and there is no sense of layering in the hue transition. Even when overlaid, the ink will spread and damage the original shape.

[0004] Chinese Patent CN117701069A discloses a watercolor ink capable of bleeding and not breaking the paper during multiple color overlays and a preparation method thereof. A small amount of methyl ethyl ketone is used as a functional water-based solvent, which can wrap the selected dye of the present invention to form macromolecules, making the dye more difficult to penetrate into the paper. Thus, the present invention can bleed on watercolor paper, copy paper, writing paper, and gouache paper, and at the same time, it will not break the paper during multiple color overlays, which is particularly suitable for painting creation. This patent solves the problem of paper breakage during multiple color overlays. However, the acid dye is selected in its scheme, and a water-soluble resin also needs to be added. In fact, the acid dye will combine with the paper fibers, and this combination will leave traces, thus affecting the bleeding effect. At the same time, adding a water-soluble resin easily affects the writing smoothness and cap-off time. At the same time, high-speed stirring at 1800 - 2000 rpm / min is required during production, with high energy consumption. Summary of the Invention

[0005] To solve the problems that existing smudgeable inks use acid dyes which will combine with paper fibers and leave traces during painting, and that water-soluble resins are likely to affect the writing fluency and require high-speed stirring during production with high energy consumption, the present invention provides a polymer dye smudgeable ink without adding water-soluble resins and its production method. It uses water-based washable polymer dyes. These water-based washable polymer dyes have high-molecular polymers grafted onto the chromophore groups. The polymer has a large molecular weight and is difficult to penetrate into the paper fibers. Therefore, it has the characteristics of stable color, resistance to migration, and film-forming property. Moreover, the grafted high-molecular polymer contains sulfonic acid group hydrophilic groups, making the smudgeable ink hydrophilic. The water smudging effect is natural and the diffusion is moderate. The polymer dye painting ink made from it has a natural color transition, rich layering and watercolor texture. At the same time, without adding water-soluble resins, the writing is fluent and can meet the requirements of beginners and professional painters.

[0006] To achieve the above object, the present invention provides a polymer dye smudgeable ink, which is characterized by comprising the following components: At least one water-based polymer dye, and the addition amount of each water-based polymer dye is 0.5 - 30 wt%; A bactericidal and mildew-proof agent, with an addition amount of 0.1 - 0.3 wt%; Glycerol, with an addition amount of 11 - 13 wt%; Propylene glycol, with an addition amount of 2 - 4 wt%; Ethylene glycol, with an addition amount of 4 - 6 wt%; At least one surfactant, with an addition amount of 0.1 - 0.3 wt%; the balance is solvent.

[0007] As a humectant, glycerol has good water solubility, good compatibility with many organic components, a very high boiling point, slow volatility, and strong water absorption, so that the water-based polymer dye can be better dispersed in the ink medium to ensure the smudging effect; Propylene glycol can be used as an antifreeze agent and also has a moisturizing effect; Ethylene glycol can improve the writing fluency, and also has a moisturizing effect and a certain bactericidal and antiseptic effect.

[0008] Preferably, the water-based polymer dye has a high-molecular polymer grafted onto the chromophore group, so that the water-based polymer dye has film-forming property. The grafted high-molecular polymer contains sulfonic acid group hydrophilic groups, making the water-based polymer dye have good hydrophilic properties.

[0009] The film-forming property allows the dye to adhere to the paper surface and form a thin film, thereby weakening the binding force between the dye and the paper fibers and making it difficult to penetrate into the paper, thus enhancing the ink smudging effect; It has good hydrophilicity. When water is used for blending, the effect is natural and the diffusion is moderate. The polymer dye painting ink made from it has a natural color transition, rich layering and watercolor texture. At the same time, the writing is smooth, meeting the requirements of beginners and professional painters.

[0010] Preferably, the water-based polymer dye is a water-washable series of polymer dyes, and the water-washable series of polymer dyes are selected from TPW~2114 scarlet, TPW~2100 orange-red, TPW~2276 light yellow, TPW~2388 bright blue, TPW~2285 orange-yellow, TPW~2142 pink, TPW~2125 rose red, TPW~2162 magenta, TPW~2700 dark black.

[0011] Preferably, the bactericidal and mildew-proof agent is at least one of sorbic acid and phenoxyethanol.

[0012] Bacteria and molds are likely to grow in the water-based system, so a bactericidal and mildew-proof agent needs to be added. The bactericidal and mildew-proof agent can meet the requirements of sterilization and anti-corrosion, and at the same time does not affect various properties in the ink system.

[0013] Preferably, the surfactant is a gemini-structured organosilicon surfactant.

[0014] The gemini-structured organosilicon surfactant has good water solubility and properties such as wetting, reducing static and dynamic surface tensions, enabling the ink to achieve excellent blending effects and writing effects, with smooth ink output.

[0015] Preferably, the solvent is deionized water.

[0016] The present invention also provides a preparation method for the above-mentioned polymer dye blendable ink, which is characterized by including the following steps: adding glycerol, propylene glycol, ethylene glycol, surfactant, bactericidal and mildew-proof agent and solvent into a beaker and stirring evenly, then adding the water-based polymer dye under low-speed stirring at 300~500 rpm / min, maintaining low-speed stirring at 500 rpm / min until evenly mixed, and finally stopping stirring. After filtration, the finished polymer dye blendable ink is obtained.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The water-based polymer dye of the present invention is not easily penetrated into the internal pores of the paper. It has strong hydrophilicity, has excellent solubility in water, and has film-forming properties, which can weaken the binding force between the dye and the paper fiber or porous surface, thus ensuring the blending effect of the ink; combined with the selected gemini organosilicon structure surfactant having properties such as wetting, reducing static and dynamic surface tensions, the polymer dye painting ink can achieve excellent blending effects, with a natural color transition, rich layering and watercolor texture. At the same time, the ink output is smooth and suitable for painting, especially for watercolor painting, Chinese painting and illustration creation.

[0018] 2. The ink production process of the present invention is simple and convenient. The selected materials are all materials with good water solubility. No water-soluble resin is added, and high-speed dispersion is not required. The finished product can be obtained by stirring evenly at a low speed of 300-500 rpm / min, which greatly reduces the energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a test chart of the bleeding effect of the blue marker pen made in Example 3 of the present invention; Figure 2 It is a test chart of the bleeding effect of the blue marker pen made in Comparative Example 3; Figure 3 It is a test chart of the single-color overlay depth effect of the dark gray marker pen made in Example 4 of the present invention; Figure 4 It is a test chart of the single-color overlay depth effect of the dark gray marker pen made in Comparative Example 4; Figure 5 It is a test chart of the two-color overlay mixing effect of the red, yellow, and blue marker pens made in Examples 1-3 of the present invention; Figure 6 It is a test chart of the two-color overlay mixing effect of the red, yellow, and blue marker pens made in Comparative Examples 1-3; Figure 7 It is a test chart of the degree of paper breakage after multiple overlays of the dark gray marker pen made in Example 4 of the present invention.

[0020] Figure 8 It is a test chart of the degree of paper breakage after multiple overlays of the dark gray marker pen made in Comparative Example 4. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0022] 11 g of glycerol, 3 g of propylene glycol, 5 g of ethylene glycol, 0.2 g of gemini silane surfactant, 0.1 g of phenoxyethanol preservative, and 70.7 g of deionized water are added to a beaker and stirred evenly. Then, 10 g of water-based washable series polymer dye TPW-2114 scarlet is added under low-speed stirring at 300-500 rpm / min, and the mixture is stirred evenly at a low speed of 500 rpm / min. After filtration, the finished polymer scarlet bleedable ink is obtained. Embodiment

[0023] Add 12 g of glycerol, 4 g of propylene glycol, 4 g of ethylene glycol, 0.3 g of gemini silane surfactant, 0.2 g of sorbic acid preservative, and 59.5 g of deionized water into a beaker and stir evenly. Then, add 20 g of the water-based washable series polymer dye TPW-2276 light yellow under low-speed stirring at 300 - 500 rpm / min, keep stirring evenly at 500 rpm / min, and obtain the finished polymer yellow bleeding ink after filtration. Example

[0024] Add 12 g of glycerol, 3 g of propylene glycol, 5 g of ethylene glycol, 0.3 g of gemini silane surfactant, 0.3 g of sorbic acid preservative, and 67.4 g of deionized water into a beaker and stir evenly. Then, add 12 g of the water-based washable series polymer dye TPW-2388 bright blue under low-speed stirring at 300 - 500 rpm / min, keep stirring evenly at 500 rpm / min, and obtain the finished polymer blue bleeding ink after filtration. Example

[0025] Add 13 g of glycerol, 2 g of propylene glycol, 6 g of ethylene glycol, 0.3 g of gemini silane surfactant, 0.1 g of sorbic acid preservative, 0.2 g of phenoxyethanol preservative, and 62.4 g of deionized water into a beaker and stir evenly. Then, add 4 g of the water-based washable series polymer dye TPW-2114 scarlet, 5 g of TPW-2276 light yellow, and 7 g of TPW-2388 bright blue under low-speed stirring at 300 - 500 rpm / min, keep stirring evenly at 500 rpm / min, and obtain the finished polymer dark gray bleeding ink after filtration.

[0026] Comparative Example 1 Add 12 g of glycerol, 5 g of propylene glycol, 0.3 g of surfactant, 0.3 g of sorbic acid preservative, and 72.4 g of deionized water into a beaker and stir evenly. Then, add 10 g of Acid Red 18# under low-speed stirring at 500 - 800 rpm / min, keep stirring evenly at 500 rpm / min, and obtain the finished red ink after filtration.

[0027] Comparative Example 2 Add 12 g of glycerol, 5 g of ethylene glycol, 0.3 g of surfactant, 0.3 g of phenoxyethanol preservative, and 67.4 g of deionized water into a beaker and stir evenly. Then, add 15 g of Acid Yellow 19# under low-speed stirring at 500 - 800 rpm / min, keep stirring evenly at 500 rpm / min, and obtain the finished yellow ink after filtration.

[0028] Comparative Example 3 Add 12g of glycerin, 5g of propylene glycol, 0.3g of surfactant, 0.3g of phenoxyethanol preservative, and 72.4g of deionized water into a beaker and stir evenly. Then, add 10g of acid blue 27# under low-speed stirring at 500-800rpm / min, keep stirring evenly at a low speed of 500rpm / min, and filter to obtain the finished blue ink.

[0029] Comparative Example 4 Add 12g of glycerol, 3g of propylene glycol, 5g of ethylene glycol, 0.3g of surfactant, 0.3g of phenoxyethanol preservative, and 63.4g of deionized water into a beaker and stir evenly. Then, add 4g of acid red 18#, 5g of acid yellow 19#, and 7g of acid blue 27# under low-speed stirring at 500-800rpm / min, keep stirring evenly at a low speed of 500rpm / min, and filter to obtain the finished dark gray ink.

[0030] Performance test: Mark pens were made with the inks prepared in Examples 1-4 and Comparative Examples 1-4 (the pen components include a water storage coil core, a nylon pen head and a plastic pen shell, and the ink filling volume of each pen is 1.7g). The prepared marker pens were respectively subjected to the following tests: 1. Blooming effect test: (1) Use the blue markers prepared in Example 3 and Comparative Example 3 to draw three color blocks of about 5.5 cm in length and about 2.0 cm in width on 230g watercolor paper, namely (A1) dark color block, repeated three layers of single color superposition; (B1) single layer color block, flat painting with the side peak of the pen tip; (C1) light color block, dipping the pen tip in water to dilute the ink color and then flat painting with the side peak of the pen tip. After the color block is left for 5 minutes, use a colorless watercolor brush dipped in water to smudge it, and draw a stroke of clear water at the bottom of the color block. After the color block is completely dry, observe whether it is completely water-soluble; whether it presents a watercolor texture; and whether there is a transition between light and dark colors.

[0031] (2) The blur effect is expressed by 0-5: 0-The color block is completely water-soluble, with obvious water-ripple texture and layered color transition; 1-The color block is completely water-soluble, with slight water-mark texture and layered color depth transition; 2- After the color block is dissolved in water, it still retains about 25% of the original brushstroke depth, with slight water marks and slight color transition; 3-After the color block is dissolved in water, it still retains about 50% of the original brushstroke depth, with slight water marks, only color depth contrast, and no color transition; 4-The color block is completely water-soluble, the color has no transition and spreads to the surroundings to form a clear outer contour line; 5-The color block remains unchanged from before water application.

[0032] Example 3 Blooming test results are shown in Figure 1 ,Figure 1 Among them, A1, B1, and C1 are the effect diagrams before water-dipping and smudging, and A2, B2, and C2 are the effect diagrams after water-dipping and smudging of the corresponding color patches. 1) It can be seen from the three color patches of A1, B1, and C1 that the ink superposition in the embodiments of this patent can deepen the depth of the color patches; and the ink has good hydrophilicity. Dipping the pen tip in water can fade the color without making the pen tip unable to draw color in a short time.

[0033] 2) There are thick and heavy fluff-like water patterns on the left side of A2, and the depth levels of the entire color patch are richer. The fluff-like water patterns at the lower left and right corners of B2 are good manifestations, and the depth levels of the entire color patch are rich. There are light fluff-like water patterns at the lower right corner of C2. Although the depth levels of the color are weaker than those of A2 and B2, the color transition can still be seen. It shows that A1, B1, and C1 are all completely water-soluble after smudging, and the smudging effects of A2, B2, and C2 are all judged to be 0, and the smudging effect is good.

[0034] The smudging test results of the comparative example are shown in Figure 2 , Figure 2 Among them, A11, B11, and C11 are the effect diagrams before water-dipping and smudging, and A21, B21, and C21 are the effect diagrams after water-dipping and smudging of the corresponding color patches.

[0035] As shown in A11, the compatibility between inks is weak. The deep lines where the edges of the brushstrokes coincide during single-layer superposition still exist after three-layer superposition. When the ink is horizontally applied and superposed, a uniform and flat color patch is not formed, presenting abrupt and rigid dark lines; 2. As shown in C11, the ink has poor hydrophilicity. Although the color fades after dipping the pen tip in water, the brushstrokes are uneven, and it is difficult to control the dryness and wetness of the brushstrokes and the depth of the color; 3. As shown in A21, although the color patch is water-soluble, it is not completely water-soluble, and there is no watercolor texture and no depth transition after drawing a stroke of clear water at the bottom of the color patch, only a weak diffusion. As shown in B21, the color patch is not completely water-soluble either, with a slight watercolor texture and color transition, and the effect of C21 is similar. The smudging test concludes that this ink cannot be completely water-soluble and has no smudging effect 2. Monochromatic superposition depth effect test: (1) Use the dark gray markers prepared in Example 4 and Comparative Example 4 respectively to draw a cube on 230g watercolor paper according to the requirements of light and dark contrast in sketching. For the bright surface, use the wet painting method of dipping the pen tip in water to fade and water-soluble smudging; for the dark part, the reflective surface, background, and foreground are first smudged with the wet painting method and then superposed with the dry painting method; for the light-dark boundary line and shadow, use the dry painting method for superposition (11-layer superposition). Observe whether the color depth of the picture is deepened compared with the original color.

[0036] (2) The monochromatic superposition depth is represented by 0-4.

[0037] 0 - The color is significantly deepened, with rich layers. There is no ink diffusion at the overlapping areas to damage the original shape, and there are no abrupt brushstrokes. 1 - The color is significantly deepened, with rich layers, and there are abrupt brushstrokes. 2 - The color is deepened and has a sense of hierarchy. Ink diffusion occurs at the overlapping areas, damaging the original shape. 3 - The color is deepened again, and the color transition is not natural. 4 - The color is not deepened.

[0038] The test results of the monochromatic overlay depth effect in Example 1 are shown in Figure 3 : (1) Compared with the original color in the upper right corner, the colors of the foreground, the light-dark boundary line, the shadow, and the rear and right backgrounds are all significantly deepened. Especially in the shadow area with 11 layers of overlay, it is the most obvious, and the color is very close to dark black, reaching a saturated level. (2) The transition from the light-dark boundary line to the specular surface is natural and has rich layers. There is no uncontrollable ink diffusion at the overlapping areas of the cube's edges, affecting the shape. (3) Except for the deliberately retained brushstrokes at the left and right backgrounds, there are no abrupt brushstrokes at other overlapping areas. (4) According to the test of the monochromatic overlay depth effect on different structural surfaces, the monochromatic overlay effect is all "0". (5) After first using the wet painting method to blend the dark specular surface, background, and foreground, and then using the dry painting method to repeatedly overlay the depth, the paper surface is not damaged. Similarly, when using the dry painting method to overlay the depth on the light-dark boundary line and the shadow, the paper surface is also not damaged.

[0039] The test results of the monochromatic overlay depth effect in the comparative example are shown in Figure 4 : 1. Compared with the original color in the upper right corner, the colors of the foreground, the light-dark boundary line, the shadow, and the rear and right backgrounds are all significantly deepened. The shadow area with 11 layers of overlay reaches the most saturated state of this color, and the hue is also close to dark black. After repeatedly overlaying 11 layers on the same wet paper, the paper surface is damaged and fuzz appears. 2. The light-colored brushstrokes in the background are painted when the paper is wet, but they are only faded and not completely water-soluble, and the brushstrokes are abrupt. When a dark color is overlaid above the left background, the original color block is not completely dry, and color dispersion and graying occur after overlaying. 3. The hydrophilicity of the ink is not good, and there are still incompletely water-soluble brushstrokes remaining in the bright part. The transition from the light-dark boundary line to the specular surface is not natural, presenting abrupt brushstrokes. Although the overlay has deepened, the ink does not blend between the upper and lower layers, so there is no color transition between light and dark, and there is a sharp contrast between light and dark.

[0040] 3. Test of the two-color overlay color mixing effect: (1) Use the red, yellow, and blue marker pens prepared in Examples 1-3 and Comparative Examples 1-3 respectively to perform dry-brush overlay mixing on 230g watercolor paper. For the red color, draw a color block from the upper left to the lower right, and then overlay with yellow from the lower right to the upper left, with fewer overlay times as you go up; in the same way, for the yellow color, draw a color block from the upper left to the lower right, and then overlay with blue from the lower right to the upper left, with fewer overlay times as you go up.

[0041] (2) Use wet-brush overlay mixing. First, evenly coat the paper with clear water to form a rectangle, and then successively overlay with red, yellow, and blue colors.

[0042] (3) Observe the color mixing situation after dry-brush and wet-brush overlay, and check whether there are intermediate colors with rich layers and natural transitions.

[0043] (4) The two-color overlay mixing situation is represented by 0-4.

[0044] 0 - Presented rich color changes according to different overlay times; 1 - The colors showed layered changes, but there were abrupt brushstroke marks. 2 - The colors changed, and ink diffusion occurred at the overlay area. 3 - The color fusion effect was not good, showing slight changes. 4 - The colors did not change.

[0045] The test results of the two-color overlay mixing effect in Examples 1-3 of the present invention are shown in Figure 5 : 1) As can be seen from Figure 5 (E), 5(F), different numbers of overlay times of the primary colors at the lower right towards the other end result in different hues of the intermediate colors, presenting rich color changes. The inks blend at the overlay area, without hard and abrupt brushstrokes, and there is no uncontrollable ink diffusion. Figure 5 In (G), lighter color blocks appeared between red and yellow, and between yellow and blue, which were the fading effects of the ink blending with the underlying clear water. With the help of water, the ink blending was more natural, better weakening the brush touch; 2) According to the two-color overlay mixing effect test of dry and wet brush methods, the two-color overlay effect is "0" for both.

[0046] The test results of the two-color overlay mixing effect in Comparative Examples 1-3 are shown in Figure 6 : 1. As can be seen from Figure 6 (E2), 6(F2), the ink solubility between inks is weak, the inks do not blend with each other, and the hard brushstrokes are still retained. Although there is a slight hue change when the two colors are overlaid, the color does not show hue changes with the increase or decrease of the overlay times. Therefore, there is no rich color layering, and the paper surface is damaged and fuzzed in the area with more overlay times; 2. From Figure 6 (G2) It can be seen that with the help of water, the harsh edges of the original color blocks are weakened when the colors are superimposed, but the colors become lighter and there is no richer color change.

[0047] 4. Multiple superposition of paper tearing degree test: (1) Use the dark gray marker pen prepared in Example 4 and Comparative Example 4 to paint a 2*3 cm color block on the upper seam of 230 g watercolor paper, 80 g copy paper, 120 g white cardboard, and semi-raw rice paper, respectively. Then, 3, 5, 10, and 15 layers are repeatedly superimposed on the color block every 1 minute to compare the degree of damage of the paper.

[0048] (2) The paper damage is indicated by 0-4, where 0 is no damage, 2 is slightly damaged, 3 is relatively damaged, and 4 is severely damaged.

[0049] Example 1 Multiple stacking paper breaking degree test results are shown in Figure 7 : (1) From Figure 7 In (I), it can be seen that on four kinds of papers with different processes and thicknesses, after 1-15 layers of side seam flat coating are stacked, the paper surface is not damaged, and when the number of coatings gradually increases, the color depth is seen to deepen and reach a saturated state; according to the multiple stacking paper damage degree test of four different papers, the test results are all "0"; (2) Among them, the thinnest paper is semi-cooked Xuan paper. Figure 7 (H) It can be seen that placing paper on copy paper, gray cardboard and wool blanket shows its thin and light characteristics. Raw rice paper and semi-raw rice paper are mostly used for large and small freehand brushwork, pursuing the effect of ink smudge on paper, and all use brushes for painting. Therefore, the pen force of the nylon pen head in this experiment is lighter than others. Figure 7 (J) shows the 15th layer of semi-cooked rice paper. The paper is a little wavy when wet, but the surface is not fuzzy or damaged. Comparative Example 1 Multiple stacking paper breaking degree test results are shown in Figure 8 : 1. From Figure 8 (I2), 8 (J2) show that after the last 15 layers of stacking, only the 230g watercolor paper was intact, and the other papers were damaged to varying degrees. The 80g copy paper began to fuzz when the 12th layer was stacked, and there was more ink at the end of the color block, so it was damaged and close to a hole after the 15th layer was stacked. The 120 white cardboard had fuzz on the surface after the 14th layer was stacked. The semi-raw rice paper had wrinkles after the 3rd layer was stacked, and the fuzzing on the surface became more severe after the 4th layer was stacked. After the 8th layer was stacked, the fuzzing was serious and close to a hole, so the stacking test could not be continued; 2. The color superposition of watercolor paper is better, but the rigid and clear brushstrokes can be seen in the color blocks with different superposition layers. After superposition of more than 3 layers, the ink on copy paper and white cardboard turns gray and uneven traces appear. The above situation occurs when rice paper is laid with a single layer of color, and it becomes more serious after 3-layer superposition.

[0050] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A polymer dye-diffusing ink, characterized in that, It comprises the following components: At least one water-based polymer dye, and the addition amount of each water-based polymer dye is 0.5-30 wt%; A bactericidal and mildew-proof agent, and the addition amount is 0.1-0.3 wt%; Glycerol, and the addition amount is 11-13 wt%; Propylene glycol, and the addition amount is 2-4 wt%; Ethylene glycol, and the addition amount is 4-6 wt%; At least one surfactant, and the addition amount is 0.1-0.3 wt%; the balance is solvent.

2. The polymer dye-diffusable ink according to claim 1, characterized in that: The water-based polymer dye has a polymer grafted on the chromophore group, so that the water-based polymer dye has film-forming property, and the grafted polymer contains a sulfonic acid group hydrophilic group, so that the water-based polymer dye has good hydrophilic property.

3. The polymeric dye-diffusable ink according to claim 2, wherein: The water-based polymer dye is a water-based washable series polymer dye, and the water-based washable series polymer dyes are selected from TPW-2114 scarlet, TPW-2100 orange red, TPW-2276 light yellow, TPW-2388 bright blue, TPW-2285 orange yellow, TPW-2142 pink, TPW-2125 rose red, TPW-2162 magenta, TPW-2700 black red.

4. A polymer dye-diffusable ink according to claim 1, characterized in that: The bactericidal and mildew-proof agent is at least one of sorbic acid and phenoxyethanol.

5. A polymer dye-diffusable ink according to claim 1, characterized in that: The surfactant is a gemini structure silicone surfactant.

6. The polymer dye-diffusable ink according to claim 1, wherein: The solvent is deionized water.

7. A method for preparing a polymer dye-stainable ink according to any one of claims 1 to 6, characterized in that, It comprises the following steps: adding all the humectant, surfactant, bactericidal and mildew-proof agent and solvent into a beaker and stirring evenly, then adding the water-based polymer dye under low-speed stirring at 300-500 rpm / min, keeping stirring evenly at a low speed of 500 rpm / min, finally stopping stirring, and filtering to obtain the finished polymer dye smudgeable ink.

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