CN109836887B - Strong-adhesion marking ink, preparation method thereof and strong-adhesion marking pen - Google Patents
Strong-adhesion marking ink, preparation method thereof and strong-adhesion marking pen Download PDFInfo
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- CN109836887B CN109836887B CN201910142426.3A CN201910142426A CN109836887B CN 109836887 B CN109836887 B CN 109836887B CN 201910142426 A CN201910142426 A CN 201910142426A CN 109836887 B CN109836887 B CN 109836887B
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Abstract
The invention provides a marking ink with strong adhesiveness for writing traces, a preparation method thereof and a corresponding marking pen. The marking pen consists of strong adhesive marking ink, a fiber pen point with 35-50% of porosity and a fiber water storage core with the fiber yarn density of 0.16-0.19g/cm 3. The strong adhesive mark ink consists of colorant, resin A, resin B, humectant, resin improving assistant and solvent. The ink can overcome the problems that the ink of the common marker pen adopts single resin to have low adhesion fastness on a writing interface and is easy to erase after being wiped by fingers on an individual writing interface, the writing traces are on the writing interface such as a PE plastic self-sealing bag and a PP pen holder smooth surface, the writing traces are not easy to erase after being wiped by fingers, the adhesion fastness can reach the characteristics that 80.0N lower traces on a glass plate, PMMA (polymethyl methacrylate) material, ceramic surface, PP smooth surface, PP frosted surface and PE film are not erased, and 70.0N lower traces on an OPP bag are not erased.
Description
Technical Field
The invention relates to the field of writing tools, in particular to a marking ink with strong adhesiveness for writing traces, a preparation method thereof and a marking pen containing the marking ink.
Background
A marking pen is a writing instrument for making a mark or indicia on one or more materials such as metal, glass, plastic, enamel, ceramic, and the like. The marking pen generally adopts a fiber water storage core to store ink, and uses a porous fiber pen point to guide the ink for writing, wherein the ink is used for writing, has certain adhesion fastness on the surface of a material and plays a role of marking or marking. However, the required adhesion industry standard for conventional markers requires that 4.9N down-stitches on the glass sheet not be erased. The stitches of the common marking pen are easy to erase after being wiped by fingers on actual use environments such as PE plastic self-sealing bags and PP pen holder smooth surfaces, and cannot play a role in marking or marking.
The main ink adhesion-fastness function is the resin in the ink, which is the binder of the colorant in the ink and the writing interface, so the resin property determines the adhesion fastness of the ink covering the writing interface. Most of the resins adopted by the common marking pen are single resins, although the adhesion fastness on a writing interface can reach 4.9N, the adhesion fastness is not strong, the adhesion fastness effects on different writing interfaces are different, and the resin is easy to erase after being wiped by fingers on individual writing interfaces such as PE plastic self-sealing bags and PP material penholder smooth surfaces.
Disclosure of Invention
The invention aims to overcome the defects that the ink of a common marking pen has low adhesion fastness on a common writing interface and is easy to erase after being wiped by fingers on an individual writing interface, and provides the marking ink with strong adhesion of traces.
The invention provides strong-adhesion marking ink which comprises compound resin and a resin improvement auxiliary agent, wherein the compound resin comprises resin A and resin B;
further, the sum of the content of the resin A and the content of the resin B accounts for 15 percent or more of the total weight of the ink, and the content of the resin improvement auxiliary agent accounts for 0.1 percent or more of the total weight of the ink;
further, the resin a includes at least one selected from a polyamide resin, a polyurethane resin; preferably, the polyamide resin is an alcohol-soluble dimer acid polyamide resin;
the resin B comprises at least one selected from alcohol-soluble polyacrylic resin and alkyd resin;
further, the resin improvement auxiliary agent comprises at least one selected from n-propanol and butanediol;
further, the strongly adherent marking ink further comprises a colorant, a humectant, and a solvent;
the colorant comprises a dye, and the dye comprises at least one selected from solvent dyes and direct dyes;
the humectant comprises at least one selected from ethyl benzoate, butyl benzoate, alkyl cerate and adipate;
the solvent comprises at least one of ethanol, isopropanol, 1-butanol, butyl acetate, ethylene glycol-methyl ether, propylene glycol methyl ether and butyl acetate;
further, the strong adhesive mark ink comprises the following components in parts by weight:
7-10 parts by weight of the colorant;
0.5-2 parts of humectant;
60-70 parts by weight of the solvent;
12-15 parts of resin A; preferably 13 to 14 parts by weight;
8-10 parts of resin B; preferably 8.5 to 9.5 parts by weight;
0.5-2 parts by weight of resin improvement auxiliary agent, preferably 1-1.5 parts by weight.
The invention provides a preparation method of strong adhesive mark ink, which comprises the following steps:
adding a solvent and a colorant into a reaction kettle according to the formula and metering, and stirring to obtain a uniform solution;
step (B) adding resin A and resin B under stirring after the homogeneous solution obtained in step (a);
adding a resin improvement auxiliary agent and a humectant, heating, and keeping the temperature and stirring to obtain a uniform solution;
step (d) filtering the uniform solution obtained in step (c) to obtain the strong adhesive mark ink;
further, the reaction kettle in the step (a) comprises a stirring device, the stirring speed in the step (a) is 400rpm, and the stirring time is 2 hours;
the heating temperature in the step (c) is 40-60 ℃, and the heat preservation and stirring time is 4 hours.
The invention also provides a strong-adhesion marking pen, which comprises a pen point and a water storage core, wherein the water storage core comprises the strong-adhesion marking ink or the strong-adhesion marking ink prepared by the preparation method;
further, the pen point is selected from a fiber pen point with 35-50% of porosity;
the water storage core is a fiber water storage core, and the fiber water storage core is made of fiber filaments with the density of 0.16-0.19g/cm3The fiber filament of (1).
Has the advantages that:
compared with the common marking pen ink, the strong adhesive marking ink provided by the invention has the following advantages:
1. adopting two kinds of resin to compound and adding resin to improve the ink formulation of the auxiliary agent;
2. the writing stitches are arranged on the PE plastic self-sealing bag and the smooth surface of the PP pen holder, the writing stitches are not easy to erase after the pen is wiped by fingers, the adhesion fastness can reach 80.0N lower stitches on a glass plate, PMMA, ceramic, PP smooth surface, PP frosted surface and PE film, and 70.0N lower stitches on the OPP bag are not erased.
3. The ink system is not easy to generate educt, and is not easy to generate the problems of difficult ink storage and the like.
Description of the drawings:
FIG. 1 depicts a schematic of the construction of a strong adhesion marker of the present invention.
Wherein the reference numerals are as follows:
1: pen holder
2: pen cap
3: tail plug
4: fiber pen point
5: fiber water storage core
Detailed Description
The invention provides strong-adhesion marking ink which comprises compound resin and a resin improvement auxiliary agent, wherein the compound resin comprises resin A and resin B;
in the strong adhesive mark ink, the sum of the contents of the resin A and the resin B accounts for 15 percent or more of the total weight of the ink in percentage by weight; preferably, the sum of the contents of the resin A and the resin B accounts for 19 percent or more of the total weight of the ink; more preferably, the sum of the contents of the resin A and the resin B accounts for 20% or more of the total weight of the ink.
In the strongly adhesive marking ink of the present invention, the sum of the contents of the resin a and the resin B is 30% by weight or less based on the total weight of the ink, and preferably, the sum of the contents of the resin a and the resin B is less than 27% by weight based on the total weight of the ink.
In one embodiment of the invention, the weight ratio of the resin a and the resin B is 1.2:1 to 1.875:1, preferably 1.36:1 to 1.75: 1; in one embodiment of the invention, the weight ratio of the resin a and the resin B is 1.44: 1.
In the strong adhesion marking ink, the content of the resin improvement auxiliary agent accounts for 0.1 percent by weight or more of the total weight of the ink, preferably 0.465 percent to 2.5 percent by weight, and more preferably 0.9 percent to 1.7 percent by weight.
In one embodiment of the invention, the weight ratio of the sum of the contents of the resin A and the resin B to the resin improvement aid is 10:1 to 50:1, preferably 14:1 to 24: 1.
The strongly adhering marking ink of the present invention further comprises an ink base including a colorant, a humectant, and a solvent.
The strong adhesive mark ink comprises the compound resin, the resin improvement auxiliary agent and the ink base material.
The strongly adhesive marking ink of the present invention includes the resin a and the resin B, the resin improvement aid, the colorant, the humectant, and the solvent.
Further, the strong adhesive marking ink comprises the following components in parts by weight:
7.0 to 10.0 weight portions of the colorant;
12.0 to 15.0 parts by weight of the resin A;
8.0 to 10.0 weight portions of resin B;
0.5 to 2.0 parts by weight of the humectant;
0.5-2.0 parts by weight of the resin improvement auxiliary agent;
60.0 to 70.0 parts by weight of the solvent.
Preferably, the strongly adhesive marking ink of the present invention comprises, in parts by weight:
7.0 to 10.0 weight portions of the colorant;
13.0 to 14.0 weight portions of resin A;
8.5-9.5 parts by weight of resin B;
0.5 to 2.0 parts by weight of the humectant;
1-1.5 parts by weight of the resin improvement auxiliary agent;
60.0 to 70.0 parts by weight of the solvent.
In the strongly adhering marking ink of the present invention, the colorant is a dye, and the dye may be at least one selected from a direct dye and a solvent dye.
In one embodiment of the present invention, the strongly adherent marking ink is a dye-based marking ink.
The direct dye can be selected from at least one of direct black ASF600 dye, direct fast red 4GE, direct brilliant blue FFRL, direct black dye 4, direct black dye 17, direct black dye 27, direct blue dye 1, direct blue dye 14, direct blue dye 90, direct red dye 1, direct red dye 28, direct red dye 62 and direct red dye 72;
the solvent dye can be selected from at least one of solvent black 3, solvent black 5, solvent black 27, solvent black 35, solvent blue 58, solvent red 27, solvent red 8, solvent red 26, solvent blue 4, solvent blue 5 and solvent blue 36;
in the strongly adhesive marking ink of the present invention, the resin a is at least one of a polyamide resin or a polyurethane resin; preferably, the polyamide resin is an alcohol-soluble dimer acid polyamide resin.
In the strongly adhesive marking ink of the present invention, the content of the resin a is 12 to 15 parts by weight, preferably 13 to 14 parts by weight, and more preferably 13 parts by weight;
in the strong adhesive marking ink, the resin B is at least one of alcohol-soluble polyacrylic resin or alkyd resin; the content of the resin B is 8 to 10 parts by weight, preferably 8.5 to 9.5 parts by weight, and more preferably 9 parts by weight;
the resin determines the adhesion fastness of the ink traces on the writing interface, and different resins and resin contents can influence the adhesion fastness of the ink on different writing interfaces. The resin A and the resin B are compounded, so that the ink has strong adhesion fastness on different writing interfaces.
The resin A can be at least one of alcohol-soluble dimer acid polyamide resin or polyurethane resin; the weight average molecular weight of the alcohol-soluble dimer acid polyamide resin is 5W-10W, the acid value (mgKOH/g) is about 4.1-6.0, the amine value (mgKOH/g) is about 2.2-5.4, the dimer in the used polymerized fatty acid is about 78-84%, the product type is HY-545, and the alcohol-soluble dimer acid polyamide resin can be purchased from rainbow chemical industry; the weight average molecular weight of the polyurethane resin is 1W-5W, the product type is HY-6501, the polymerization degree n is about 31.05-155.2, and the polyurethane resin can be purchased from Nippon New materials Co.
The resin B can be at least one of alcohol-soluble polyacrylic resin or alkyd resin, the weight-average molecular weight of the alcohol-soluble polyacrylic resin is 5W-10W, the commercial model is AMS-2702, the polymerization degree is about 16.4-32.8, and the alcohol-soluble polyacrylic resin can be purchased from Yue Mei chemical industry; the weight average molecular weight of the alkyd resin is 1W-5W, the oil content (oil content or fatty acid content) of the resin is 40-60, and the alkyd resin can be purchased from the safety chemical industry.
The content of the resin A is 12-15 parts by weight, the resin A can enable the ink stitches to have good adhesiveness on the PE plastic film, the OPP bag and other soft interfaces, and the problems that precipitates are not easy to appear in an ink system at 0 ℃ for 1 day, ink storage and absorption are difficult to appear, and the like are solved; the content of the resin B is 8-10 parts by weight, the resin B can enable the ink traces to have good adhesion on hard interfaces such as glass, ceramic and PMMA, and the problems that precipitates are not easy to appear in an ink system at 0 ℃ for 1 day, ink storage and absorption are difficult to occur and the like are not easy to occur.
In the strong adhesive marking ink of the present invention, the resin improvement aid may be one selected from n-propanol and butanediol; the resin improvement aid is preferably n-propanol. The resin improvement auxiliary agent mainly has the function of increasing the solubility of the resin A and the resin B in a solvent, so that the ink has strong adhesion on a writing interface.
In the strong-adhesion marking ink, the humectant is at least one of ethyl benzoate, butyl benzoate, alkyl cerate and adipate; the humectant is preferably an adipate.
In the strong adhesive marking ink of the present invention, the solvent may be at least one selected from the group consisting of ethanol, isopropanol, 1-butanol, butyl acetate, ethylene glycol methyl ether, propylene glycol methyl ether, and butyl acetate; the solvents are preferably ethanol and ethylene glycol methyl ether.
The preparation method of the strong adhesive mark ink comprises the following steps: adding the solvent and the colorant into a reaction kettle with stirring equipment (the stirring speed is 400rpm) according to the formula metering requirement, stirring for 2 hours to obtain a uniform solution, adding the resin A and the resin B under the stirring state, finally adding the resin improvement auxiliary agent and the humectant, heating to 40-60 ℃, keeping the temperature and stirring for 4 hours to obtain a uniform solution, and filtering to obtain the ink. The reaction kettle comprises a conventional reaction kettle capable of stirring, and is not particularly limited.
On the other hand, the invention also provides a strong adhesion marking pen which comprises a pen head, a water storage core and the strong adhesion marking ink stored in the water storage core.
The marking pen is a water storage core type marking pen, and the pen point can be selected from a fiber pen point with 35-50% of porosity; there is no particular requirement on the shape of the nib, and exemplary nib shapes may be selected from round, axe-shaped, square, etc.; the fiber water storage core is selected from fiber filaments with the density of 0.16-0.19g/cm3The fiber water storage core.
As shown in the attached figure 1, the marking pen comprises a fiber water storage core 5 filled with the strong-adhesion marking ink, the fiber water storage core 5 is arranged in a pen holder 1, a tail plug 3 is pressed into the tail end of the pen holder 1, a fiber pen point 4 is inserted into the front end of the pen holder 1, and a pen sleeve 2 covers the front end of the pen holder 1 tightly.
The invention is further illustrated by the following examples.
Example 1
Adding 35 parts by weight of ethanol, 30 parts by weight of ethylene glycol-methyl ether and 10 parts by weight of direct black ASF600 dye into a reaction kettle with stirring equipment (the stirring speed is 400rpm), stirring for 2 hours to obtain a uniform solution, adding 12 parts by weight of alcohol-soluble dimer acid polyamide resin and 10 parts by weight of alkyd resin under the stirring state, finally adding 0.5 part by weight of n-propyl alcohol and 0.5 part by weight of adipate, heating to 40-60 ℃, keeping the temperature and stirring for 4 hours to obtain a uniform solution, and filtering to obtain the strong-adhesion marking ink.
Example 2
Adding 35 parts by weight of ethanol, 30 parts by weight of ethylene glycol-methyl ether and 10 parts by weight of solvent blue 58 dye into a reaction kettle with stirring equipment (the stirring speed is 400rpm), and stirring for 2 hours to obtain a uniform solution. Adding 13 parts by weight of alcohol-soluble dimer acid polyamide resin and 9 parts by weight of alkyd resin under the stirring state, finally adding 0.5 part by weight of n-propyl alcohol and 0.5 part by weight of adipate, heating to 40-60 ℃, keeping the temperature and stirring for 4 hours to obtain a uniform solution, and filtering to obtain the strong-adhesiveness marking ink.
Example 3
Adding 35 parts by weight of ethanol, 30 parts by weight of ethylene glycol-methyl ether and 10 parts by weight of direct fast red 4GE dye into a reaction kettle with stirring equipment (the stirring speed is 400rpm), and stirring for 2 hours to obtain a uniform solution. Adding 14 parts by weight of alcohol-soluble dimer acid polyamide resin and 8 parts by weight of alkyd resin under stirring, finally adding 0.5 part by weight of n-propanol and 0.5 part by weight of adipate, heating to 40-60 ℃, keeping the temperature and stirring for 4 hours to obtain a uniform solution, and filtering to obtain the strong-adhesiveness marking ink.
Example 4
Adding 35 parts by weight of ethanol, 30 parts by weight of ethylene glycol-methyl ether and 10 parts by weight of direct fast red 4GE dye into a reaction kettle with stirring equipment (the stirring speed is 400rpm), and stirring for 2 hours to obtain a uniform solution. Adding 14 parts by weight of alcohol-soluble dimer acid polyamide resin and 8 parts by weight of alkyd resin under stirring, finally adding 1 part by weight of n-propyl alcohol and 0.5 part by weight of adipate, heating to 40-60 ℃, keeping the temperature and stirring for 4 hours to obtain a uniform solution, and filtering to obtain the strongly-adhesive marking ink.
Example 5
Adding 35 parts by weight of ethanol, 30 parts by weight of ethylene glycol-methyl ether and 10 parts by weight of direct fast red 4GE dye into a reaction kettle with stirring equipment (the stirring speed is 400rpm), and stirring for 2 hours to obtain a uniform solution. Adding 14 parts by weight of alcohol-soluble dimer acid polyamide resin and 8 parts by weight of alkyd resin under stirring, finally adding 2 parts by weight of n-propanol and 0.5 part by weight of adipate, heating to 40-60 ℃, keeping the temperature and stirring for 4 hours to obtain a uniform solution, and filtering to obtain the strong-adhesion marking ink.
In order to better illustrate the advantages of the present invention, the present invention provides marking inks as comparative examples in addition to the above examples.
Comparative example 1
Adding 35 parts by weight of ethanol, 30 parts by weight of ethylene glycol-methyl ether and 10 parts by weight of direct black ASF600 dye into a reaction kettle with a stirrer (the stirring speed is 400rpm), stirring for 2 hours to obtain a uniform solution, adding 9 parts by weight of alcohol-soluble dimer acid polyamide resin and 10 parts by weight of alkyd resin under the stirring state, finally adding 0.5 part by weight of n-propyl alcohol and 0.5 part by weight of adipate, heating to 40-60 ℃, keeping the temperature and stirring for 4 hours to obtain a uniform solution, and filtering to obtain the marking ink.
Comparative example 2
Adding 35 parts by weight of ethanol, 30 parts by weight of ethylene glycol-methyl ether and 10 parts by weight of direct black ASF600 dye into a reaction kettle with a stirrer (the stirring speed is 400rpm), stirring for 2 hours to obtain a uniform solution, adding 18 parts by weight of alcohol-soluble dimer acid polyamide resin and 10 parts by weight of alkyd resin under the stirring state, finally adding 0.5 part by weight of n-propyl alcohol and 0.5 part by weight of adipate, heating to 40-60 ℃, keeping the temperature and stirring for 4 hours to obtain a uniform solution, and filtering to obtain the marking ink.
Comparative example 3
Adding 35 parts by weight of ethanol, 30 parts by weight of ethylene glycol-methyl ether and 10 parts by weight of direct black ASF600 dye into a reaction kettle with a stirrer (the stirring speed is 400rpm), stirring for 2 hours to obtain a uniform solution, adding 12 parts by weight of alcohol-soluble dimer acid polyamide resin and 6 parts by weight of alkyd resin under the stirring state, finally adding 0.5 part by weight of n-propyl alcohol and 0.5 part by weight of adipate, heating to 40-60 ℃, keeping the temperature and stirring for 4 hours to obtain a uniform solution, and filtering to obtain the marking ink.
Comparative example 4
Adding 35 parts by weight of ethanol, 30 parts by weight of ethylene glycol-methyl ether and 10 parts by weight of direct black ASF600 dye into a reaction kettle with a stirrer (the stirring speed is 400rpm), stirring for 2 hours to obtain a uniform solution, adding 12 parts by weight of alcohol-soluble dimer acid polyamide resin and 12 parts by weight of alkyd resin under the stirring state, finally adding 0.5 part by weight of n-propyl alcohol and 0.5 part by weight of adipate, heating to 40-60 ℃, keeping the temperature and stirring for 4 hours to obtain a uniform solution, and filtering to obtain the marking ink.
Comparative example 5
Adding 35 parts by weight of ethanol, 30 parts by weight of ethylene glycol-methyl ether and 10 parts by weight of direct black ASF600 dye into a reaction kettle with a stirrer (the stirring speed is 400rpm), stirring for 2 hours to obtain a uniform solution, adding 12 parts by weight of maleic resin and 10 parts by weight of alkyd resin under the stirring state, finally adding 0.5 part by weight of n-propanol and 0.5 part by weight of adipate, heating to 40-60 ℃, keeping the temperature and stirring for 4 hours to obtain a uniform solution, and filtering to obtain the marking ink
Comparative example 6
Adding 35 parts by weight of ethanol, 30 parts by weight of ethylene glycol-methyl ether and 10 parts by weight of direct black ASF600 dye into a reaction kettle with stirring (the stirring speed is 400rpm), stirring for 2 hours to obtain a uniform solution, adding 12 parts by weight of alcohol-soluble dimer acid polyamide resin and 10 parts by weight of phenolic resin under the stirring state, finally adding 0.5 part by weight of n-propyl alcohol and 0.5 part by weight of adipate, heating to 40-60 ℃, keeping the temperature and stirring for 4 hours to obtain a uniform solution, and filtering to obtain the marking ink.
Test methods of examples and comparative examples
The marking inks of the examples and comparative examples were tested for pH, viscosity, surface tension, low temperature resistance, and writing performance and adhesion after pen-fitting according to the following test methods:
pH: respectively putting buffer solution 1(0.01mol of sodium tetraborate (pH: 9.18 at 25 ℃), buffer solution 0.05mol of potassium phthalate (pH: 4.00 at 25 ℃) and detected ink into a beaker, putting the beaker into a constant-temperature water bath, setting the temperature to be (25 +/-1) DEG C, starting circulating water, keeping the temperature for 30min, respectively inserting acidimeter electrodes into buffer solution 1 and buffer solution 2 correction acidimeters (the allowable difference is within 0.02), sequentially cleaning the electrode heads by using ethanol and detected ink in proper amount, adjusting the temperature of the acidimeter to be 25 ℃, and then inserting the electrodes into the detected ink for measurement.
Viscosity: adding the ink to be tested into a test container of a rotary viscometer, selecting a proper rotor, completely immersing the rotor into the ink, connecting the test container with a constant-temperature water bath, and adjusting the temperature of the water bath to (23 +/-2) ° C. And (5) starting circulating water, keeping the temperature for 30min, and measuring after adjusting the viscometer to a working state.
Surface tension: adding the detected ink into a special sample vessel of a tensiometer, preferably to about two thirds, and connecting the sample vessel with a constant temperature water bath, wherein the temperature is controlled at (20 +/-1) DEG C. And (5) starting circulating water, keeping the temperature constant for 30min, and measuring after adjusting the tension meter to be in a working state.
Low temperature resistance (0 ℃): adding the detected ink into a special glass bottle, standing at 0 ℃, taking out after 24 hours, absorbing the ink by using water storage, and observing whether a precipitate exists at the bottom end.
Adhesion: adhesion test reference is made to adhesion test method in QB/T2777-2015 marker by scribing on different substrates and wiping the stitch with gauze, the result being expressed in terms of the force pressing the load on the gauze, e.g. 80N represents a load force of 80N, the stitch is not erased and the stitch adhesion is strong; 20N represents a load of 20N, the traces were not erased and the traces had poor adhesion.
Using a test pen to scratch 5 consecutive circles with the diameter of 20mm-30mm on a glass plate, covering two layers of medical gauze on the traces after 1 minute, pressing a special weight (with the specification of 1 kg-10 kg), performing dry wiping for 5 times to and fro, and checking whether the traces are erased.
In the same manner, adhesion tests were performed on ceramic materials, PMMA materials, PP smooth surfaces, PP frosted surfaces, OPP bags, and PE films using a test pencil.
Finger wiping test: a test pen is used for marking 1 circle with the diameter of 5mm-10mm on the PE plastic valve bag and the smooth surface of the PP pen holder, after 1 minute, the circle is dry-wiped for 5 times back and forth by fingers according to the normal force, and whether the stitch is erased is checked.
The results of the physical and chemical indexes of the inks of the examples and the comparative examples are shown in Table 1.
TABLE 1
| Examples of the invention | pH | Surface tension/mN/m | Viscosity/mpa.s |
| Example 1 | 5.6 | 24.1 | 9.1 |
| Example 2 | 4.4 | 22.2 | 6.6 |
| Example 3 | 5.2 | 23.2 | 5.4 |
| Example 4 | 5.5 | 22.7 | 5.0 |
| Example 5 | 5.7 | 22.4 | 4.9 |
| Comparative example 1 | 5.8 | 24.5 | 9 |
| Comparative example 2 | 5.9 | 24.3 | 9.5 |
| Comparative example 3 | 4.7 | 24.2 | 8.5 |
| Comparative example 4 | 6 | 24 | 9.5 |
| Comparative example 5 | 5 | 25 | 8.3 |
| Comparative example 6 | 4.8 | 24.6 | 7.6 |
The results of the ink low temperature resistance, writing performance, and adhesion of each example and comparative example are shown in table 2.
TABLE 2
The results of the ink finger wiping test for each example and comparative example are shown in table 3.
TABLE 3
| Examples of the invention | On the PE plastic self-sealing bag | On the smooth surface of the PP pen holder |
| Example 1 | Is not erased | Is not erased |
| Example 2 | Is not erased | Is not erased |
| Example 3 | Is not erased | Is not erased |
| Example 4 | Is not erased | Is not erased |
| Example 5 | Is not erased | Is not erased |
| Comparative example 1 | Is erased | Is not erased |
| Comparative example 2 | Is not erased | Is not erased |
| Comparative example 3 | Is not erased | Is erased |
| Comparative example 4 | Is not erased | Is not erased |
| Comparative example 5 | Is erased | Is not erased |
| Comparative example 6 | Is not erased | Is erased |
Comparison results of ink physical and chemical indexes:
the results of the examples and comparative examples show that the strongly adherent marking ink system of the present invention has a suitable viscosity without affecting the continuity of writing of the finished pen after mating.
Writing performance and adhesion of the ink were compared:
the results of examples and comparative examples 1 to 4 show that the ink traces of the strongly adherent marking ink of the present invention have good adhesion to the soft interface such as on a PE plastic film, an OPP bag, etc.; the ink traces of the strongly adherent marking ink of the present invention also have good adhesion to hard interfaces such as glass, ceramics, PMMA, and the like, while the ink adhesion is reduced in the comparative examples. In addition, in the examples, the ink did not cause the problems such as the occurrence of precipitates and the difficulty in absorbing ink in the water-storing core at 0 ℃. In comparative examples 5 and 6, the use of polyamide resin and polyurethane resin as resin a and the use of polyacrylic resin and alkyd resin as resin B resulted in a decrease in ink stitch adhesion.
Finger rub test comparison of inks:
the ink stitches of the strong adhesive marking ink are not easy to erase on the smooth surfaces of the PE plastic self-sealing bag and the PP pen holder, and the finger wiping performance of the ink stitches is reduced due to the fact that the resin A or the resin B is lack or low in content in the comparative example.
Claims (8)
1. The strong-adhesion marking ink is characterized by comprising compound resin and a resin improvement aid, wherein the compound resin comprises resin A and resin B, the resin A is alcohol-soluble dimer acid polyamide resin, and the resin B is alkyd resin; the strong adhesive marking ink comprises 12-15 parts by weight of alcohol-soluble dimer acid polyamide resin and 8-10 parts by weight of alkyd resin; the sum of the contents of the resin A and the resin B accounts for 15 percent or more of the total weight of the ink, and the content of the resin improvement auxiliary agent accounts for 0.1 percent or more of the total weight of the ink; the resin improvement auxiliary agent comprises at least one selected from n-propanol and butanediol.
2. The high adhesion marking ink of claim 1, wherein the high adhesion marking ink further comprises a colorant, a humectant, and a solvent;
the colorant comprises a dye, and the dye comprises at least one selected from solvent dyes and direct dyes;
the humectant comprises at least one selected from ethyl benzoate, butyl benzoate, alkyl cerate and adipate;
the solvent comprises at least one selected from ethanol, isopropanol, 1-butanol, butyl acetate, ethylene glycol-methyl ether, propylene glycol methyl ether and butyl acetate.
3. The strongly adherent marking ink according to claim 2, comprising, in parts by weight:
7-10 parts by weight of the colorant;
0.5-2 parts of humectant;
60-70 parts by weight of the solvent;
12-15 parts of resin A;
8-10 parts of resin B;
0.5-2 parts of resin improvement auxiliary agent.
4. The strongly adherent marking ink according to claim 3, comprising, in parts by weight:
13-14 parts of resin A;
8.5-9.5 parts by weight of resin B;
1-1.5 parts of resin improvement auxiliary agent.
5. A method of making the strongly adherent marking ink of any one of claims 2-4, comprising:
adding the solvent and the colorant into a reaction kettle according to the formula and metering, and stirring to obtain a uniform solution;
step (B) adding the resin A and the resin B under stirring after the uniform solution is obtained in the step (a);
step (c), further adding the resin improvement auxiliary agent and the humectant, heating, and keeping the temperature and stirring to obtain a uniform solution;
and (d) filtering the uniform solution obtained in the step (c) to obtain the strong adhesive mark ink.
6. The method for preparing a highly adhesive marking ink according to claim 5, wherein the reaction vessel in the step (a) includes a stirring device, the stirring speed in the step (a) is 400rpm, and the stirring time is 2 hours;
the heating temperature in the step (c) is 40-60 ℃, and the heat preservation and stirring time is 4 hours.
7. A strong-adhesion marking pen, which is characterized by comprising a pen head and a water storage core, wherein the water storage core comprises the strong-adhesion marking ink prepared by the preparation method of any one of claims 1 to 4 or any one of claims 5 to 6.
8. The strongly-adhering marker of claim 7, wherein said nib is selected from a group consisting of a fiber nib having a porosity of 35-50%;
the water storage core is a fiber water storage core, and the fiber water storage core is made of fiber filaments with the density of 0.16-0.19g/cm3The fiber filament of (1).
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| CN113061366A (en) * | 2021-03-30 | 2021-07-02 | 天津市鸵鸟墨水有限公司 | Color ink composition for surface dyeing of high-cleanliness material |
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