Easy-to-clean colored ink and preparation method thereof

Abstract

The present application proposes an easy-to-clean colored ink and a preparation method thereof, and relates to the field of ink technology. The easy-to-clean colored ink comprises: animal gelatin, mineral pigment, water, sodium chloride, nonionic surfactant, film former, water-soluble acrylic resin, dispersant, defoamer and bactericidal preservative. The preparation method is: heat water, add animal gelatin and stir evenly, add sodium chloride, water-soluble acrylic resin and bactericidal preservative after cooling to room temperature, add mineral pigment powder, film former, dispersant and defoamer after stirring again, disperse evenly, and filter to obtain the easy-to-clean colored ink. The present application uses animal gelatin as a gum base, water as a solvent, and mineral powder as a pigment, and then adds surfactants, film formers, cosolvents, dispersants, defoamers and bactericidal preservatives and other additives to prepare the color pigment of the present application, which has the advantages of no color distortion, strong water solubility, and easy cleaning.

Description

Technical Field

[0001] The present application relates to the field of ink technology, and in particular to an easy-to-clean colored ink and a preparation method thereof. Background Art

[0002] Ink is a unique traditional product in my country with a long history of thousands of years. Colored ink can replace traditional watercolors and Chinese painting pigments, and can also be more conveniently used for splashing colors and water-bumping powder. In other words, Chinese painting cannot do without ink. Therefore, people have never stopped researching ink. For example, Chinese patent CN102492332A discloses a new ink composition and its preparation method, which adds a brightener to ordinary ink, effectively improves the brightness of the ink, and is supplemented with an oxidant to improve the adhesion of the ink; For example, Chinese patent CN114574034A discloses an ink that is resistant to oxidation and corrosion after writing, which adds phlogopite and preservatives to the ink, so that the ink has good moisture resistance, and the fonts in a humid environment are durable and can be stored stably for a long time. The above patent scheme makes the ink more functional by adding or replacing raw materials in the formula of traditional ink.

[0003] It is very common for calligraphy and painting creators to accidentally stain their clothes with ink. Usually, the ink is cleaned with water starch, but due to the large number of chemical additives in the current functional ink, the carbon element contained, and the hydrophilic and hydrophobic properties of the raw materials, the ink marks are difficult to completely wash off, leaving ugly marks. At present, there are relatively few studies on easy-to-clean inks. Therefore, it is of great application value to develop an ink that is easy to clean and convenient to use. Summary of the invention

[0004] The purpose of the present application is to provide an easy-to-clean color ink, which has the advantages of good water solubility and easy cleaning.

[0005] Another object of the present application is to provide a method for preparing easy-to-clean colored ink, which has the advantages of being simple and convenient.

[0006] In order to solve the above technical problems, the technical solution adopted in this application is:

[0007] On the one hand, the present application provides an easy-to-clean colored ink, comprising the following raw materials in parts by weight: 30-50 parts of animal gelatin, 10-20 parts of mineral pigments, 20-40 parts of water, 2-5 parts of sodium chloride, 1-2 parts of non-ionic surfactants, 2-5 parts of film-forming agents, 2-5 parts of water-soluble acrylic resins, 1-3 parts of dispersants, 0.5-1.5 parts of defoaming agents, and 0.5-5 parts of bactericidal preservatives.

[0008] On the other hand, the present application provides a method for preparing an easily washable colored ink, comprising the following steps:

[0009] Heat water, add animal gelatin and stir evenly, add sodium chloride, water-soluble acrylic resin and bactericidal preservative after cooling to room temperature, stir again and add mineral pigment powder, film-forming agent, dispersant and defoaming agent, disperse evenly, filter and obtain the easy-to-clean colored ink.

[0010] Compared with the prior art, the embodiments of the present application have at least the following advantages or beneficial effects:

[0011] The present application uses animal gelatin as the gum base, water as the solvent, and mineral powder as the pigment, and then adds surfactants, film-forming agents, co-solvents, dispersants, defoaming agents, bactericidal preservatives and other auxiliary agents to prepare the color pigment of the present application, which has the advantages of no color distortion and easy cleaning.

[0012] Specifically, the present application adds a non-ionic surfactant, which reduces the overall surface tension of the colored ink. Combined with the sodium chloride electrolyte, the colored ink can be easily transferred to the surface of other materials, making the use of the ink convenient. When the colloidal substance in the ink dries on the surface of clothing, the water-soluble acrylic resin added in the present application can be dispersed and filled into the particle gaps of the gum base in the ink. When washing with water, the water-soluble acrylic resin greatly improves the water solubility of the entire ink, making the ink easy to wash off without leaving any traces. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below. If the specific conditions are not specified in the embodiments, they are carried out according to the conventional conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0014] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to specific embodiments.

[0015] The invention discloses an easy-to-clean colored ink, comprising the following raw materials in parts by weight: 30-50 parts of animal gelatin, 10-20 parts of mineral pigment, 20-40 parts of water, 2-5 parts of sodium chloride, 1-2 parts of nonionic surfactant, 2-5 parts of film-forming agent, 2-5 parts of water-soluble acrylic resin, 1-3 parts of dispersant, 0.5-1.5 parts of defoaming agent and 0.5-5 parts of bactericidal preservative.

[0016] The present application uses animal gelatin as the gum base, water as the solvent, and mineral powder as the pigment, and then adds surfactants, film-forming agents, co-solvents, dispersants, defoaming agents, bactericidal preservatives and other auxiliary agents to prepare the color pigment of the present application, which has the advantages of no color distortion and easy cleaning.

[0017] Specifically, the present application adds a non-ionic surfactant, which reduces the overall surface tension of the colored ink. Combined with the sodium chloride electrolyte, the colored ink can be easily transferred to the surface of other materials. After the gum base in the ink dries on the surface of clothing, the water-soluble acrylic resin in the present application can be dispersed and filled into the particle gaps of the gum base in the ink. When washed with water, its water solubility is greatly improved, so that the entire ink can be easily washed away without leaving any traces.

[0018] The mineral pigments in the present application include cinnabar, hematite, limonite, realgar, orpiment, gold, malachite, cuprate, azurite, lapis lazuli, gypsum, kaolin, calcite, aragonite, mica, talc, graphite, pyrolusite and the like.

[0019] In some embodiments of the present application, the above-mentioned colored ink includes the following raw materials in parts by weight: 40 parts of animal gelatin, 15 parts of mineral pigments, 30 parts of water, 3 parts of sodium chloride, 2 parts of non-ionic surfactant, 3 parts of film-forming agent, 3 parts of water-soluble acrylic resin, 2 parts of dispersant, 1 part of defoaming agent and 2 parts of bactericidal preservative.

[0020] In some embodiments of the present application, the nonionic surfactant is an alkylphenol polyether or a fatty acid methyl ester ethoxylate.

[0021] In some embodiments of the present application, the film-forming agent is at least one of sorbitan monostearate and glyceryl monostearate.

[0022] In some embodiments of the present application, the dispersant is at least one of sucrose ester, diffusant NB and sulfonated castor oil.

[0023] In some embodiments of the present application, the above-mentioned bactericidal preservative is at least one of isothiazolinone and phenol.

[0024] A method for preparing easy-to-clean colored ink comprises the following steps:

[0025] Heat water, add animal gelatin and stir evenly, add sodium chloride, water-soluble acrylic resin and bactericidal preservative after cooling to room temperature, stir again and add mineral pigment powder, film-forming agent, dispersant and defoaming agent, disperse evenly, filter and obtain the easy-to-clean colored ink.

[0026] In some embodiments of the present application, the heating temperature is 50-70°C.

[0027] In some embodiments of the present application, the mineral pigment powder is sized 400-500 mesh.

[0028] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0029] Example 1

[0030] An easy-to-clean colored ink, the preparation method of which comprises the following steps:

[0031] Weigh the raw materials: 400g of animal gelatin (bone glue), 150g of mineral pigment (malachite, i.e. malachite), 300g of water, 30g of sodium chloride, 20g of non-ionic surfactant (alkylphenol polyether), 30g of film-forming agent (glyceryl monostearate), 30g of water-soluble acrylic resin, 20g of dispersant (diffuser NB), 10g of defoaming agent and 20g of bactericidal preservative (isothiazolinone).

[0032] Place water in a heating container, heat it to 60°C, add animal gelatin, melt it and stir it evenly to obtain mucus, stop heating, cool it to room temperature while stirring, add sodium chloride, water-soluble acrylic resin and bactericidal preservative, continue stirring until uniform, add mineral pigment powder ground through a 400-mesh sieve, film-forming agent, dispersant and defoaming agent, disperse them evenly, and filter through a 400-mesh sieve to obtain the easy-to-clean colored ink of this embodiment.

[0033] Example 2

[0034] An easy-to-clean colored ink, the preparation method of which comprises the following steps:

[0035] Weigh the raw materials: 450g of animal gelatin (bone glue), 200g of mineral pigment (orpiment, i.e. orange-lemon yellow), 400g of water, 50g of sodium chloride, 10g of non-ionic surfactant (alkylphenol polyether), 20g of film-forming agent (sorbitan oleate), 30g of water-soluble acrylic resin, 15g of dispersant (sulfonated castor oil), 10g of defoaming agent and 15g of bactericidal preservative (isothiazolinone).

[0036] Place water in a heating container, heat it to 65°C, add animal gelatin, melt it and stir it evenly to obtain mucus, stop heating, cool it to room temperature while stirring, add sodium chloride, water-soluble acrylic resin and bactericidal preservative, continue stirring until uniform, then add mineral pigment powder ground through a 450-mesh sieve, film-forming agent, dispersant and defoaming agent, disperse them evenly, and filter them through a 400-mesh sieve to obtain the easy-to-clean colored ink of this embodiment.

[0037] Example 3

[0038] An easy-to-clean colored ink, the preparation method of which comprises the following steps:

[0039] Weigh the raw materials: 450g of animal gelatin (bone glue), 100g of mineral pigment (orpiment, i.e. orange-lemon yellow), 250g of water, 50g of sodium chloride, 12g of non-ionic surfactant (fatty acid methyl ester ethoxylate), 20g of film-forming agent (sorbitan oleate), 50g of water-soluble acrylic resin, 10g of dispersant (sulfonated castor oil), 15g of defoaming agent and 15g of bactericidal preservative (phenol).

[0040] Place water in a heating container, heat it to 65°C, add animal gelatin, melt it and stir it evenly to obtain mucus, stop heating, cool it to room temperature while stirring, add sodium chloride, water-soluble acrylic resin and bactericidal preservative, continue stirring until uniform, add mineral pigment powder ground through a 400-mesh sieve, film-forming agent, dispersant and defoaming agent, disperse them evenly, and filter through a 400-mesh sieve to obtain the easy-to-clean colored ink of this embodiment.

[0041] Example 4

[0042] An easy-to-clean colored ink, the preparation method of which comprises the following steps:

[0043] Weigh the raw materials: 450g of animal gelatin (bone glue), 100g of mineral pigment (lapis lazuli), 250g of water, 30g of sodium chloride, 15g of non-ionic surfactant (fatty acid methyl ester ethoxylate), 50g of film-forming agent (glyceryl monostearate), 35g of water-soluble acrylic resin, 10g of dispersant (sucrose ester), 10g of defoaming agent and 12g of bactericidal preservative (isothiazolinone).

[0044] Place water in a heating container, heat it to 60°C, add animal gelatin, melt it and stir it evenly to obtain mucus, stop heating, cool it to room temperature while stirring, add sodium chloride, water-soluble acrylic resin and bactericidal preservative, continue stirring until uniform, add mineral pigment powder ground through a 500-mesh sieve, film-forming agent, dispersant and defoaming agent, disperse them evenly, and filter them through a 400-mesh sieve to obtain the easy-to-clean colored ink of this embodiment.

[0045] Comparative Example 1

[0046] The difference between this comparative example and Example 1 is only that sodium chloride is not added in this comparative example.

[0047] A color ink, the preparation method of which comprises the following steps:

[0048] Weigh the raw materials: 400g of animal gelatin (bone glue), 150g of mineral pigment (malachite, i.e. malachite green), 300g of water, 20g of non-ionic surfactant (alkylphenol polyether), 30g of film-forming agent (glyceryl monostearate), 30g of water-soluble acrylic resin, 20g of dispersant (diffuser NB), 10g of defoaming agent and 20g of bactericidal preservative (isothiazolinone).

[0049] Place water in a heating container, heat to 60°C, add animal gelatin, melt it and stir it evenly to obtain mucus, stop heating, cool to room temperature while stirring, add water-soluble acrylic resin and bactericidal preservative, continue stirring until evenly mixed, then add mineral pigment powder ground through a 400-mesh sieve, film-forming agent, dispersant and defoaming agent, and disperse evenly to obtain the colored ink of this comparative example.

[0050] Comparative Example 2

[0051] The only difference between this comparative example and Example 1 is that no water-soluble acrylic resin is added in this comparative example.

[0052] A color ink, the preparation method of which comprises the following steps:

[0053] Weigh the raw materials: 400g animal gelatin (bone glue), 150g mineral pigment (malachite, i.e. malachite), 300g water, 30g sodium chloride, 20g non-ionic surfactant (alkylphenol polyether), 30g film-forming agent (glyceryl monostearate), 20g dispersant (diffuser NB), 10g defoaming agent and 20g bactericidal preservative (isothiazolinone).

[0054] Place water in a heating container, heat to 60°C, add animal gelatin, melt it and stir it evenly to obtain mucus, stop heating, cool to room temperature while stirring, add sodium chloride and a bactericidal preservative, continue stirring until evenly mixed, then add mineral pigment powder ground through a 400-mesh sieve, a film-forming agent, a dispersant and a defoaming agent, and disperse evenly to obtain the colored ink of this comparative example.

[0055] Experimental Example 1

[0056] The viscosity, surface tension and fineness of the colored inks prepared in Examples 1-4 and Comparative Examples 1-2 were tested, and the results are shown in Table 1.

[0057] Table 1

[0058]

[0059]

[0060] As can be seen from Table 1, the color inks produced in the examples of the present application and comparative examples 1-2 meet the current relevant regulations on ink in terms of viscosity, surface tension and fineness. Compared with Example 1, the sodium chloride is reduced in Comparative Example 1, and its surface tension has a significant change.

[0061] Experimental Example 2

[0062] The colored inks prepared in Examples 1-4 and Comparative Examples 1-2 were applied to skin, cotton clothing, latex paint walls, plaster white walls, and floors (the application area and ink dosage of each experimental example were the same). After 12 hours at room temperature, the cotton clothing was soaked in clean water for 1 minute, and the others were gently scrubbed with clean water for 20 seconds. The surface residue was observed and scored, where 0 means no trace at all and 5 means no change in the trace. The results are shown in Table 2.

[0063] Table 2

[0064]

[0065]

[0066] As can be seen from Table 2, on materials such as skin, cotton clothing, latex paint walls, plaster white walls and floors, the easy-to-clean colored inks prepared in Examples 1-4 of the present application are very easy to clean, and no additional cleaning agents are required, and no traces are left after washing. In Comparative Example 1, sodium chloride is lacking, and the surface tension of its ink is greater, making it difficult to wash; in Comparative Example 2, water-soluble acrylic resin is reduced, and its water solubility is reduced, and the cleaning ability on certain materials is greatly weakened.

[0067] In summary, the easy-to-clean colored ink and preparation method thereof according to the embodiment of the present application have the following advantages:

[0068] The present application uses animal gelatin as the gum base, water as the solvent, and mineral powder as the pigment, and then adds surfactants, film-forming agents, co-solvents, dispersants, defoaming agents, bactericidal preservatives and other auxiliary agents to prepare the color pigment of the present application, which has the advantages of no color distortion and easy cleaning.

[0069] Specifically, the present application adds a non-ionic surfactant, which reduces the overall surface tension of the colored ink. Combined with the sodium chloride electrolyte, the colored ink can be easily transferred to the surface of other materials. After the gum base in the ink dries on the surface of clothing, the water-soluble acrylic resin in the present application can be dispersed and filled into the particle gaps of the gum base in the ink. When washed with water, its water solubility is greatly improved, so that the entire ink can be easily washed away without leaving any traces.

[0070] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present application.

Claims

1. An easy-to-clean colored ink, characterized in that: The invention comprises the following raw materials in parts by weight: 30-50 parts of animal gelatin, 10-20 parts of mineral pigment, 20-40 parts of water, 2-5 parts of sodium chloride, 1-2 parts of non-ionic surfactant, 2-5 parts of film-forming agent, 2-5 parts of water-soluble acrylic resin, 1-3 parts of dispersant, 0.5-1.5 parts of defoaming agent and 0.5-5 parts of bactericidal preservative; the non-ionic surfactant is alkylphenol polyether or fatty acid methyl ester ethoxylate.

2. The easy-to-clean colored ink according to claim 1, characterized in that: The colored ink comprises the following raw materials in parts by weight: 40 parts of animal gelatin, 15 parts of mineral pigments, 30 parts of water, 3 parts of sodium chloride, 2 parts of non-ionic surfactant, 3 parts of film-forming agent, 3 parts of water-soluble acrylic resin, 2 parts of dispersant, 1 part of defoaming agent and 2 parts of bactericidal preservative.

3. The easy-to-clean colored ink according to claim 1 or 2, characterized in that: The film-forming agent is at least one of sorbitol behenate and glyceryl monostearate.

4. The easy-to-clean colored ink according to claim 1 or 2, characterized in that: The dispersant is at least one of sucrose ester, diffusing agent NB and sulfonated castor oil.

5. The easy-to-clean colored ink according to claim 1 or 2, characterized in that: The bactericidal preservative is at least one of isothiazolinone and phenol.

6. A method for preparing the easy-to-clean colored ink according to any one of claims 1 to 5, characterized in that: The following steps are involved: Heat water, add animal gelatin and stir evenly, add sodium chloride, water-soluble acrylic resin and bactericidal preservative after cooling to room temperature, stir again and add mineral pigment powder, film-forming agent, dispersant and defoaming agent, disperse evenly, filter and obtain the easy-to-clean colored ink.

7. The method for preparing the easy-to-clean colored ink according to claim 6, characterized in that: The heating temperature is 50-70°C.

8. The method for preparing the easy-to-clean colored ink according to claim 6, characterized in that: The mineral pigment powder is 400-500 mesh.

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