CN109575684B - Stable watercolor ink, preparation method thereof and watercolor pen - Google Patents
Stable watercolor ink, preparation method thereof and watercolor pen Download PDFInfo
- Publication number
- CN109575684B CN109575684B CN201811611801.6A CN201811611801A CN109575684B CN 109575684 B CN109575684 B CN 109575684B CN 201811611801 A CN201811611801 A CN 201811611801A CN 109575684 B CN109575684 B CN 109575684B
- Authority
- CN
- China
- Prior art keywords
- ink
- stable
- watercolor
- essence
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/16—Writing inks
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention provides stable watercolor ink, a preparation method thereof and a watercolor pen, which comprise the following components: 0.1-10 parts of colorant, 10-20 parts of humectant, 0.1-1 part of chelating thickener, 0.05-0.1 part of essence, 0.001-0.8 part of essence stabilizer, 0.1-1 part of preservative, 65-85 parts of solvent and a proper amount of pH regulator. All raw materials of the stable watercolor ink are food additives, belong to the Chinese food additive standard catalogue, meet the national standard, do not contain heavy metal, are safe and environment-friendly, and have high stability by adding a chelating thickener to chelate free ions and phenolic compounds in water. By adding essence, an essence stabilizer, a preservative and the like, the time of fragrance in the ink is prolonged, and the problem of reducing the stability of the system after the essence is added is solved, so that the ink can still be normally used in transportation, long-time storage and other extreme weather or environments.
Description
Technical Field
The invention relates to stable watercolor ink, in particular to stable watercolor ink, a preparation method thereof and a watercolor pen.
Background
Although stationery is small, due to close contact with students and close association with physical and mental health of the students, in recent years, the message of toxic stationery is endless, and 97.4 percent of marking pens in 2015, 11-month and 29-month reports on quality of every week, which reports 'stationery recessive crisis', seriously affect the use safety of the students. With the increasing awareness of safety and environmental protection and the increasing requirements for the healthy growth environment of children, the safe and nontoxic writing tools successfully attract the eyes of consumers, and become one of the preferred conditions for the consumers to buy stationery products. The water color pen, as a drawing tool commonly used by students, has the advantages of sufficient moisture, rich color, bright color and the like, is deeply loved by the majority of children, and is well concerned by the children art market.
At present, the research and application of food-grade watercolor ink at home and abroad are in the first sight, companies such as oriental cherry, schderian and the like successively provide food-grade watercolor ink with a colorant, the watercolor ink is popularized in markets at home and abroad, market feedback is good, the research on the ink at home is still in the initial stage, and the product of the brand at home is not provided, so that the development of safe and stable food-grade watercolor ink is very important. In addition, the food-grade watercolor ink with the fragrant smell can attract the eyes of consumers and is deeply favored by the consumers, in addition, the fragrant smell of the ink is mainly caused by adding essence which is prepared by mixing a plurality of spices, wherein the essence contains a plurality of natural or synthetic fragrant raw materials, the main components of the fragrant raw materials are aldehydes, esters, phenols and the like, and due to the special chemical structure and poor stability of the fragrant raw materials, the fragrant raw materials are easily influenced by the outside, if light, heat, oxygen and the like can generate physical and chemical reactions, the original fragrance can be volatilized, even unpleasant smell can be generated, and the change of the essence can cause the change of the ink quality such as the change of color and the change of the smell, and the sale and the use of end products can be influenced. Therefore, when adding the essence, not only the proper fragrance is selected, but also the influence of the selected essence on the product quality and the use effect is considered.
For a food-grade aromatic watercolor ink, the characteristics of safety and environmental protection after mixing cannot be changed, and the watercolor ink must be safe and stable during transportation, long-time storage and use in other extreme weather or environments, so that the characteristics of safety, environmental protection, harmlessness and fragrance of the ink must be stable and durable, and therefore, the development of a stable watercolor ink is indispensable.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide stable watercolor ink with bright color, safety, environmental protection and aromatic smell, a preparation method thereof and a watercolor pen containing the stable watercolor ink.
The invention provides a stable watercolor ink, which comprises an ink mixed base material, an aromatic component and a chelating thickener;
further, the ink mix base, the fragrance component, and the chelating thickener are all food grade and do not contain heavy metals;
further, the ink mixing base comprises a colorant, a humectant, a preservative, a solvent and a pH regulator;
the aromatic component comprises essence and an essence stabilizer;
further, the stable watercolor ink comprises the following components in parts by weight:
0.1 to 10 parts by weight of the colorant;
10-20 parts of humectant;
0.1-1 part by weight of the preservative;
65-85 parts by weight of the solvent;
0.05 to 0.1 weight portion of essence;
0.001-0.8 part by weight of the essence stabilizer;
0.1-4 parts by weight of the chelating thickener; preferably, the chelating thickener is 0.1 to 1 part by weight;
and a proper amount of the pH regulator, so that the final pH of the stable watercolor ink reaches 4-8;
further, the colorant comprises at least one selected from natural edible toner powder or artificial edible pigment;
the humectant comprises an organic matter containing hydrophilic group carboxyl or hydroxyl;
the organic matter containing hydrophilic carboxyl or hydroxyl comprises at least one of glycerol, propylene glycol, polyethylene glycol, sorbitol and 1,2,3,4, 5-pentanol;
the preservative comprises at least one of benzoic acid and sodium salt thereof, sorbic acid and potassium salt thereof, sodium dehydroacetate, calcium propionate, natamycin and sodium acetate, or a mixture of two or more of the two;
the solvent is water, and preferably, the water is deionized water;
the pH regulator comprises at least one selected from citric acid, lactic acid and acetic acid;
the essence comprises food-grade water-soluble essence;
the essence stabilizer comprises at least one of vanillin, ethyl vanillin, maltol and ethyl maltol;
further, the chelating thickener comprises a combination of modified xanthan gum and a food grade thickener;
further, the food-grade thickener is cellulose ether or biological polysaccharide, preferably, the cellulose ether or biological polysaccharide comprises at least one selected from methylcellulose, carboxymethylcellulose, hydroxyethyl cellulose and sodium alginate;
further, the weight ratio of the modified xanthan gum to the food-grade thickener is 1:2-1: 9;
further, the content of the modified xanthan gum is 0.1-0.33 weight part;
further, the modified xanthan gum is obtained by grafting and copolymerizing xanthan gum with polyacrylamide.
The invention also provides a preparation method of the stable watercolor ink, which comprises the following steps:
adding a humectant, a chelating thickener and a solvent into a reaction kettle in sequence, and then stirring at room temperature;
adding a colorant into the mixture obtained in the step (b), and stirring the mixture at constant temperature;
slowly adding essence, essence stabilizer and preservative in sequence, and stirring;
adding a proper amount of pH regulator to make the final pH of the ink system reach 4-8;
finally, filtering to remove impurities in the system and discharging to obtain stable watercolor ink;
further, the stirring time in the step (a) is 0.5-1 hour;
the stirring time in the step (b) is 0.5 to 1 hour;
the stirring time in the step (c) is 0.5 to 1 hour;
further, the solvent is deionized water.
The invention also provides a water color pen, which comprises stable water color ink and is characterized in that the stable water color ink is the stable water color ink or the stable water color ink prepared by the preparation method;
further, the preparation method of the water color pen comprises the step of filling 2g of the stable water color ink into the core to prepare the water color pen.
Compared with the prior art, the stable watercolor ink has the following advantages:
1. all raw materials in the stable watercolor ink belong to the category of food additives, and the ink is safe, non-toxic, harmless and environment-friendly from the raw materials.
2. The food-grade water-soluble essence is added into the ink system, so that the ink has aromatic smell, the interestingness is increased, the consumption desire of consumers is improved, and the painting fun of children is increased.
3. The essence stabilizer is added in the ink system, so that the fragrance retention time of the food-grade water-soluble essence in the ink is prolonged.
4. The stable watercolor ink of the present invention is useful in transportation, long term storage, and other extreme weather or environments.
5. The chelating thickener is used in the ink system, so that ions and phenolic substances in the ink can be chelated, and the system stability is improved.
Detailed Description
The technical solution of the present invention is further explained below according to specific embodiments. The scope of protection of the invention is not limited to the following examples, which are set forth for illustrative purposes only and are not intended to limit the invention in any way.
The stable watercolor ink comprises an ink mixing base material, an aromatic component and a chelating thickener. The stable watercolor ink comprises 75.2 to 118 parts by weight of the ink mixed base material, 0.05 to 0.9 part by weight of the aromatic component and 0.1 to 4 parts by weight of the chelating thickener.
In the stable watercolor ink, all the raw materials are food additives, all the raw materials belong to the Chinese food additive standard catalog, meet the national standard, do not contain heavy metals, and are safe and environment-friendly. The ink mix base, the fragrance component, and the chelating thickener are all food grade and do not contain heavy metals.
Further, the ink mixing base comprises a colorant, a humectant, a pH regulator, a preservative and a solvent; the aromatic components include essence and an essence stabilizer.
In the stable watercolor ink of the present invention, the chelating thickener is not more than 5% of the total weight of the stable watercolor ink.
The stable watercolor ink of the present invention comprises: 0.1-10 parts of a coloring agent, 10-20 parts of a humectant, 0.1-4 parts of a chelating thickener, 0.05-0.1 part of essence, 0.001-0.8 part of an essence stabilizer, 0.1-1 part of a preservative, 65-85 parts of a solvent and a proper amount of a pH regulator, so that the final pH value of an ink system reaches 4-8.
Preferably, the stable watercolor ink comprises the following components in parts by weight: 0.1-10 parts of a coloring agent, 10-20 parts of a humectant, 0.1-1 part of a chelating thickener, 0.05-0.1 part of essence, 0.001-0.8 part of an essence stabilizer, 0.1-1 part of a preservative, 65-85 parts of a solvent and a proper amount of a pH regulator, so that the final pH value of an ink system reaches 4-8.
In the stable water color ink of the present invention, the colorant is one or a mixture of several natural edible color powder or synthetic edible color, and is not particularly limited, and exemplary colorants may be FD & C Yellow5 and FD & C Blue 2.
In the stable watercolor ink, the humectant is an organic substance containing hydrophilic group carboxyl or hydroxyl, such as one or a mixture of more of glycerin, propylene glycol, polyethylene glycol, sorbitol and 1,2,3,4, 5-pentanol.
In the stable watercolor ink of the invention, the pH regulator comprises at least one selected from citric acid, lactic acid and acetic acid. The stable watercolor ink comprises a proper amount of the pH regulator, so that the final pH of the stable watercolor ink reaches 4-8. In one embodiment, the pH adjuster is added in an amount of 0.1 to 2 parts by weight.
In the stable watercolor ink, the preservative comprises at least one selected from benzoic acid and sodium salts thereof, sorbic acid and potassium salts thereof, sodium dehydroacetate, calcium propionate, natamycin and sodium acetate, or a mixture of two or more.
The stable watercolor ink can use two or more preservatives, so that the single preservative has short efficacy time and the risk of inhibiting single strain. The preservative is a mixture of two or more of benzoic acid and sodium salt thereof, sorbic acid and potassium salt thereof, sodium dehydroacetate, calcium propionate, natamycin and sodium acetate.
In one embodiment of the invention, the preservative is a combination of sodium benzoate and sodium dehydroacetate; in another embodiment of the invention, the preservative is a combination of sodium dehydroacetate and potassium sorbate.
In the stable water color ink of the present invention, the essence includes food-grade water-soluble essence, and is not particularly limited, and exemplary food-grade water-soluble essence includes at least one selected from a vanilla type essence, a blueberry type essence, a green apple type essence, a rose type essence, a peach type essence, and the like.
In the stable watercolor ink, the essence stabilizer comprises at least one of vanillin, ethyl vanillin, maltol and ethyl maltol.
The chelating thickener in the stable watercolor ink of the present invention comprises a combination of a modified xanthan gum and a food grade thickener.
The food-grade thickener is cellulose ether or biological polysaccharide, such as methylcellulose, carboxymethyl cellulose, hydroxyethyl cellulose, sodium alginate, xanthan gum, etc.
In one embodiment of the stable watercolor ink of the present invention, the chelating thickener is a mixture of one or two of cellulose ether or biological polysaccharide, such as methylcellulose, carboxymethylcellulose, hydroxyethyl cellulose, sodium alginate, and the like, and modified xanthan gum.
In the stable water color ink, the modified xanthan gum is obtained by grafting and copolymerizing the xanthan gum with polyacrylamide, and the molecular weight of the modified xanthan gum is more than or equal to 2 multiplied by 106The degree of polymerization N is more than or equal to 103. The modified xanthan gum is light yellow powder and is prepared by modification of Jinjiu chemical Co. Xanthan gum is a cell produced by fermenting Xanthomonas campestrisThe outer polysaccharide polymer has the advantages of biodegradability, biocompatibility, no toxicity, reproducibility and the like, and the modified xanthan gum has the characteristics of grafted chemicals through graft copolymerization modification. Through modification, the xanthan gum has a chelation effect, so that ions and phenolic substances in the printing ink can form precipitates through the chelation effect, and the stability of a system is improved.
The modified xanthan gum has high viscosity, good thixotropy and emulsion stability at low concentration, and the addition amount of the modified xanthan gum in the general aqueous ink is 0.1-0.5 part by weight, and the viscosity range is 2-100 cps.
In the stable watercolor ink, the weight ratio of the modified xanthan gum to the cellulose ether or the biological polysaccharide is 1:2-1:9, so that the thickening effect and the chelating effect can be achieved. In one embodiment of the present invention, the modified xanthan gum is present in an amount of 0.1 to 0.33 parts by weight; the stable watercolor ink has obvious thickening effect and can chelate ions and phenolic substances in toner and essence in a system; and the viscosity of the system is proper, so that the ink output of the finished pen and the quality and hand feeling of the writing stitches are not influenced.
In one embodiment of the present invention, the weight ratio of the modified xanthan gum to the cellulose ether or biopolysaccharide is 1:3.
In another embodiment of the present invention, the weight ratio of the modified xanthan gum to the cellulose ether or biopolysaccharide is 1:3.5.
In the stable watercolor ink, the solvent is water, and the water is deionized water.
The stable watercolor ink raw materials belong to the Chinese food additive catalogue, so that the safety and the non-toxicity of the raw materials are ensured; by adding the essence and the essence stabilizer and controlling the type and the dosage of the essence and the essence stabilizer, the ink has aromatic smell, and the time for the ink to emit the aromatic smell is prolonged; the single preservative is added to reduce the efficacy time of the single preservative, inhibit the risk of single strain; the stable watercolor ink disclosed by the invention relieves the problem that the stability of the stable watercolor ink is reduced after the essence is added, so that the ink has good writing performance, bright and full color, long intermittent writing time, long-term storage and normal use under other extreme conditions.
The invention relates to a preparation method of stable watercolor ink, which comprises the following steps:
adding a humectant, a thickening agent and deionized water into a reaction kettle in sequence, and then stirring for 0.5-1 hour at room temperature;
adding a colorant into the mixture obtained in the step (b), and stirring the mixture for 0.5 to 1 hour at constant temperature;
slowly adding essence, essence stabilizer and preservative in sequence, and stirring for 0.5-1 hour;
adding a proper amount of pH regulator to make the final pH of the ink system reach 4-8;
and (e) finally, filtering to remove micron-sized large-particle impurities in the system, and discharging to obtain the stable watercolor ink.
The invention also provides a water color pen which comprises the stable water color ink and is manufactured by filling 2g of the stable water color ink into the core-spun material.
Unless otherwise defined, all terms used herein have the meanings that are commonly understood by those skilled in the art.
Drawings
FIG. 1 depicts the results of the particle size test for the stable watercolor ink obtained in example 1.
FIG. 2 depicts the results of the particle size test for the stable watercolor ink obtained in example 2.
FIG. 3 depicts the results of the particle size test of the watercolor ink obtained in comparative example 1.
FIG. 4 depicts the results of particle size testing of the watercolor ink obtained in comparative example 2.
FIG. 5 depicts the results of a particle size test of the watercolor ink obtained in comparative example 3.
The present invention will be described in further detail with reference to examples.
Examples
Examples 1-2 stable watercolor inks were prepared according to the methods of the present invention based on the raw material formulations set forth in tables 1 and 2, respectively, and watercolor pens containing the stable watercolor inks were further prepared.
The stable watercolor inks prepared in examples 1-2 were subjected to an ink particle size test and a long-term use test of the prepared watercolor pens, respectively.
Example 1
The composition of a stable watercolor ink is shown in table 1:
TABLE 1
The preparation method of the stable watercolor ink comprises the following steps: the preparation method comprises the steps of sequentially adding deionized water, polyethylene glycol, modified xanthan gum and carboxymethyl cellulose into a reaction kettle, stirring for 0.5 hour at room temperature, then adding FD & C Yellow5, stirring for 0.6 hour at constant temperature, sequentially and slowly adding green apple essence, ethyl maltol, sodium benzoate and sodium dehydroacetate, stirring for 0.5 hour, finally adding a proper amount of citric acid to enable the pH value of an ink system to be 5, filtering to remove micron-sized large-particle impurities in the system, and discharging to obtain the stable watercolor ink.
The ink was subjected to a particle size test, the results of which are shown in FIG. 1, and the particle size of the ink was 0.04-0.1 microns.
Long-term use test: 2g of ink is poured into the core-spun core to prepare a water color pen, intermittent test is carried out under the constant temperature and humidity environment (the temperature is 25 ℃, the humidity is 50 percent), normal writing can still be carried out after the cap is opened for 20 days, and the trace emits the taste of green apples; when the writing brush is placed in an environment of 50 ℃ for 1 year, the core-spun of the writing brush head does not mildew, the writing brush is opened normally, the length of the drawn line reaches 275m, and the trace emits fragrance of green apples. The writing brush is placed for 2 years at normal temperature, the pen is opened normally, the core-spun pen point does not mildew, the length of the drawn line is 290m, and the trace emits fragrance of green apples.
Example 2
The composition of a stable watercolor ink is shown in Table 2:
TABLE 2
The preparation method of the stable watercolor ink comprises the following steps: the preparation method comprises the steps of sequentially adding deionized water, polyethylene glycol, sorbitol, modified xanthan gum and sodium alginate into a reaction kettle, stirring at room temperature for 1 hour, then adding FD & C Blue 2, stirring at constant temperature for 0.5 hour, sequentially adding vanilla essence, ethyl vanillin, sodium dehydroacetate and potassium sorbate, stirring for 0.5 hour, finally adding a proper amount of lactic acid to enable the pH of an ink system to be 6, filtering to remove micron-sized large-particle impurities in the system, and discharging to obtain the stable watercolor ink.
The ink was tested for particle size, the results of which are shown in FIG. 2, the ink particle size being 0.04-0.12 microns.
Long-term use test: 2g of ink is poured into the core-spun core to prepare a water color pen, intermittent test is carried out under the constant temperature and humidity environment (the temperature is 25 ℃, the humidity is 50%), normal writing can still be carried out after the cap is opened for 30 days, no particles are separated out from the pen head, and vanilla fragrance is emitted; when the writing brush is placed in an environment of 50 ℃ for 1 year, the core-spun pen point does not mildew, the pen is opened normally, the scribing length reaches 295m, and the stitches emit vanilla fragrance. The pen is opened normally when placed for 2 years in a normal temperature environment, the core-spun pen point does not mildew, the length of the drawn line is 290m, and the stitches emit vanilla fragrance.
In addition, comparative examples 1 to 3 are also provided in order to better illustrate the advantages of the present invention. The watercolor inks prepared in comparative examples 1 to 3 were subjected to an ink particle size test and a long-term use test, respectively.
Comparative example 1:
the compositions and contents of the colorant, humectant, essence stabilizer, preservative, solvent and pH adjuster were the same as in example 1 except that no modified xanthan gum was added and 0.4g of carboxymethyl cellulose was added.
The watercolor ink was prepared in the same manner as in example 1.
The prepared ink is subjected to particle size test, and solid particles in the liquid are found to be large, and the particle size test result is 0.06-8.5microns, as shown in figure 3.
Long-term use test: 2g of ink is poured into the core-spun core to prepare a water color pen, intermittent tests are carried out under a constant temperature and humidity environment (the temperature is 25 ℃, and the humidity is 50%), normal writing can not be carried out after the cap is opened for 20 days, the pen is obviously withered, and the time is obviously shortened compared with that of the embodiment 1.
The stability test was carried out with a stability parameter of 1.20, significantly greater than that of example 1.
Comparative example 2:
the components and contents of the colorant, humectant, essence stabilizer, preservative, solvent and pH adjuster were the same as in example 1 except that the weight ratio of the added modified xanthan gum to the hydroxymethyl cellulose was 1: 11.
The watercolor ink was prepared in the same manner as in example 1.
The prepared ink is subjected to particle size test, and solid particles in the liquid are found to be large, and the particle size test result is 0.06-8.5microns, which is shown in figure 4.
Long-term use test: 2g of ink is poured into the core-spun core to prepare a water color pen, intermittent test is carried out under a constant temperature and humidity environment (the temperature is 25 ℃, the humidity is 50 percent), and normal writing can be carried out after the cap is opened for 20 days.
The stability test was carried out with a stability parameter of 1.50, significantly greater than that of example 1.
Comparative example 3:
the components and contents of the colorant, humectant, essence stabilizer, preservative, solvent and pH adjuster were the same as in example 1 except that the weight ratio of the added modified xanthan gum to the hydroxymethyl cellulose was 1: 1.
The watercolor ink was prepared in the same manner as in example 1.
The prepared ink is subjected to particle size test, solid particles in the liquid are found to be large, and the particle size test result is 0.7-9microns, which is shown in figure 5.
Long-term use test: 2g of ink is poured into the core-spun core to prepare a water color pen, intermittent test is carried out under a constant temperature and humidity environment (the temperature is 25 ℃, the humidity is 50 percent), and normal writing can not be carried out after the cap is opened for 7 days.
The stability test was carried out with a stability parameter of 2.30, significantly greater than that of example 1.
System stability test
The stable watercolor inks prepared in examples 1-2, and comparative examples 1-3 were evaluated for system stability according to the following stability test.
Testing an instrument: stability analyzer (French TUEBISCAN LAB)
The stability analyzer uses the principle of multiple light scattering, and the intensity of the transmitted and backscattered light obtained by the detector is directly determined by the concentration (volume percentage) and average diameter (or average diameter of particles/droplets/bubbles) of the dispersed phase. By measuring the change of the transmitted light and the back scattering intensity, the change of the sample in a certain section concentration or particle size can be known. The variation in particle size and the variation in position of the particles in the sample due to coalescence, flocculation or agglomeration phenomena can be monitored in real time. It is thus possible to calculate the change in the mean diameter of the particles in the sample, the speed of migration of the particles and the change in concentration due to the migration of the particles, i.e. the change in the thickness of the layer over time.
The stability analyzer turbo scan LAb software yields the results of the analysis of the back-scattered luminous flux BS and transmitted luminous flux T versus time. And processing the curve through software to obtain a value of a stability parameter, wherein the stability parameter is an evaluation on the stability of the whole dispersion system, and the larger the value is, the more unstable the system is.
Lower data values indicate better ink stability, and the data in Table 3 is for a sample stored at 50 ℃ for 8 hours. According to the research experience of ink stability, when the numerical value is more than or equal to 1, the system stability is poor, the application performance of the ink has problems, and the use is not recommended.
The results of the stability parameter tests of examples 1,2 and comparative examples 1-3 are shown in Table 3.
TABLE 3
The stability parameters of comparative examples 1-3 were 1.20, 1.50 and 2.30, respectively, which are significantly greater than the stability parameter of example 1.
In conclusion, the stable watercolor ink obtained by the invention has good stability, can still normally write even if the cap is opened for 23 days in a constant temperature and humidity environment (the temperature is 25 ℃ and the humidity is 50%), has no particles separated out from the pen point, and emits aromatic odor; when the writing brush is placed in an environment of 50 ℃ for 1 year, the core-spun writing brush head has no mildew phenomenon, the writing brush is opened normally, the scribing length is 258-298 m, and the stitches emit fragrant smell. The pen is placed for 2 years in a normal temperature environment, the pen is opened normally, the core-spun of the pen point does not mildew, the scribing length is 267 and 310m, and the stitches emit aromatic odor. Therefore, the stable watercolor ink has good stability.
It should be noted by those skilled in the art that the described embodiments of the present invention are merely exemplary and that various other substitutions, alterations, and modifications may be made within the scope of the present invention. Accordingly, the present invention is not limited to the above-described embodiments, but is only limited by the claims.
Claims (16)
1. The stable watercolor ink comprises an ink mixed base material, an aromatic component and a chelating thickener, and is characterized in that the chelating thickener comprises a modified xanthan gum and a food-grade thickener, wherein the modified xanthan gum is obtained by grafting copolypropylamine onto xanthan gum, and the weight ratio of the modified xanthan gum to the food-grade thickener is 1:2-1: 9; the food-grade thickener is cellulose ether or biological polysaccharide.
2. The stable watercolor ink of claim 1 wherein the ink mix base, the fragrance component, and the chelating thickener are all food grade and free of heavy metals.
3. The stable watercolor ink of claim 1 wherein the cellulose ether or biopolysaccharide comprises at least one member selected from the group consisting of methylcellulose, carboxymethylcellulose, hydroxyethylcellulose, and sodium alginate.
4. The stable watercolor ink of claim 1 wherein the modified xanthan gum is present in an amount of 0.1 to 0.33 parts by weight.
5. The stable watercolor ink of any one of claims 1-4 wherein the ink blend base comprises a colorant, a humectant, a preservative, a solvent, and a pH adjuster;
the aromatic components include essence and an essence stabilizer.
6. The stable watercolor ink of claim 5 wherein the colorant comprises at least one member selected from the group consisting of natural edible toner or synthetic edible pigment;
the humectant comprises an organic matter containing hydrophilic group carboxyl or hydroxyl;
the organic matter containing hydrophilic carboxyl or hydroxyl comprises at least one of glycerol, propylene glycol, polyethylene glycol, sorbitol and 1,2,3,4, 5-pentanol;
the preservative comprises at least one of benzoic acid and sodium salt thereof, sorbic acid and potassium salt thereof, sodium dehydroacetate, calcium propionate, natamycin and sodium acetate, or a mixture of two or more of the two;
the solvent is water;
the pH regulator comprises at least one selected from citric acid, lactic acid and acetic acid;
the essence comprises food-grade water-soluble essence;
the essence stabilizer comprises at least one of vanillin, ethyl vanillin, maltol and ethyl maltol.
7. The stable watercolor ink of claim 6 wherein the water is deionized water.
8. The stable watercolor ink of claim 6 comprising, in parts by weight:
0.1 to 10 parts by weight of the colorant;
10-20 parts of humectant;
0.1-1 part by weight of the preservative;
65-85 parts by weight of the solvent;
0.05 to 0.1 weight portion of essence;
0.001-0.8 part by weight of the essence stabilizer;
0.1-4 parts by weight of the chelating thickener;
and the pH regulator is proper in amount, so that the final pH of the stable watercolor ink reaches 4-8.
9. The stable watercolor ink of claim 8 wherein the stable watercolor ink comprises from 0.1 to 1 parts by weight of the chelating thickener.
10. The stable watercolor ink of claim 7 wherein the stable watercolor ink comprises, in parts by weight:
0.1 to 10 parts by weight of the colorant;
10-20 parts of humectant;
0.1-1 part by weight of the preservative;
65-85 parts by weight of the solvent;
0.05 to 0.1 weight portion of essence;
0.001-0.8 part by weight of the essence stabilizer;
0.1-4 parts by weight of the chelating thickener;
and the pH regulator is proper in amount, so that the final pH of the stable watercolor ink reaches 4-8.
11. The stable watercolor ink of claim 10 wherein the stable watercolor ink comprises from 0.1 to 1 parts by weight of the chelating thickener.
12. A method of making a stable watercolor ink as claimed in any one of claims 5 to 11 comprising:
adding the humectant, the chelating thickener and the solvent into a reaction kettle in sequence, and then stirring at room temperature;
after the colorant is added, stirring at constant temperature;
step (c), slowly adding the essence, the essence stabilizer and the preservative in sequence, and stirring;
adding a proper amount of the pH regulator to enable the final pH of the ink system to reach 4-8;
and (e) finally, filtering to remove impurities in the system and discharging to obtain the stable watercolor ink.
13. The method of claim 12, wherein the stirring time in step (a) is from 0.5 to 1 hour;
the stirring time in the step (b) is 0.5 to 1 hour;
the stirring time in the step (c) is 0.5 to 1 hour.
14. The method of claim 12, wherein the solvent is deionized water.
15. A watercolor pen comprising a stable watercolor ink, wherein the stable watercolor ink is the stable watercolor ink of any one of claims 1-11 or the stable watercolor ink prepared by the preparation method of any one of claims 12-14.
16. The watercolor pen of claim 15, wherein the preparation method comprises pouring 2g of the stable watercolor ink into a core to make the watercolor pen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811611801.6A CN109575684B (en) | 2018-12-27 | 2018-12-27 | Stable watercolor ink, preparation method thereof and watercolor pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811611801.6A CN109575684B (en) | 2018-12-27 | 2018-12-27 | Stable watercolor ink, preparation method thereof and watercolor pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109575684A CN109575684A (en) | 2019-04-05 |
| CN109575684B true CN109575684B (en) | 2022-03-08 |
Family
ID=65932101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811611801.6A Active CN109575684B (en) | 2018-12-27 | 2018-12-27 | Stable watercolor ink, preparation method thereof and watercolor pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109575684B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423514B (en) * | 2019-08-06 | 2022-03-18 | 上海晨光文具股份有限公司 | A kind of ballpoint pen ink composition for inhibiting ink accumulation |
| CN113736317A (en) * | 2021-06-17 | 2021-12-03 | 山东掘色新材料科技有限公司 | Thermosensitive color-changing pen ink |
| CN117844286B (en) * | 2024-03-08 | 2024-05-24 | 南京师范大学 | Environment-friendly art pigment for teaching and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555373B (en) * | 2009-05-20 | 2011-08-10 | 上海乐美文具有限公司 | Erasable gel ink and preparation method thereof |
| CN104130627B (en) * | 2014-07-23 | 2016-12-07 | 王勇 | Stable color-change ink |
| CN104559476B (en) * | 2015-02-04 | 2016-11-30 | 马健 | A kind of Environment-friendlyeasy-to-wash easy-to-wash watercolor ink and preparation method thereof |
| CN106752369A (en) * | 2016-12-29 | 2017-05-31 | 李宇哲 | A kind of children of safety edible use watercolor board pen ink |
-
2018
- 2018-12-27 CN CN201811611801.6A patent/CN109575684B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109575684A (en) | 2019-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109575684B (en) | Stable watercolor ink, preparation method thereof and watercolor pen | |
| US4168662A (en) | Videojet ink for printing on food products | |
| CN101473998B (en) | Sustained-release cassia leaf oil microemulsion, preparation method and use thereof | |
| CH630529A5 (en) | PERFUME COMPOSITION. | |
| JPH11116878A (en) | Water-based ink having retarded cap-off time | |
| CN103254683B (en) | Water-based color paste binder, and preparation method and application thereof | |
| CN107022241B (en) | Nano-silver and gelatin modified antibacterial ink and preparation method thereof | |
| JP3304612B2 (en) | Fluorescent color ink composition for writing instruments | |
| CN105132169A (en) | Green apple essence used for water-based ink and preparation method of green apple essence | |
| CN109294332A (en) | A kind of cigarette with anti-fake color shifting ink with and preparation method thereof and cigarette tipping paper | |
| CN105585901B (en) | Color type fragrance fluorescent ink and preparation method thereof | |
| GB1570793A (en) | Thickening compositions for a salad dressing | |
| CN105038387A (en) | Pear essence for water-based inks and preparation method thereof | |
| CN105154233A (en) | Juicy peach essence for oil-based ink and preparation method of juicy peach essence | |
| JPH07118588A (en) | Ink for skin mark | |
| CN106967332B (en) | Cerium and gelatin modified antibacterial ink and preparation method thereof | |
| CN105087161A (en) | Grapefruit essence for water-based ink and preparing method of grapefruit essence | |
| JP3451122B2 (en) | Aqueous ink composition | |
| JP4931326B2 (en) | Ink composition for aqueous writing instruments | |
| CN112237295B (en) | Transparent solid tobacco tar with high liquid holding capacity | |
| JP4684004B2 (en) | Aldehyde compound detection composition | |
| JPH05310546A (en) | Incensing composition | |
| JP2002322406A (en) | Aqueous pigment composition | |
| JPH10130563A (en) | Aqueous ink for ball point pen | |
| SU904581A1 (en) | "diamol" agent for diagnosis of providing plants with nitrogen and method of producing same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |