CN112552741A - Ink for color contact lenses and ink drying agent - Google Patents
Ink for color contact lenses and ink drying agent Download PDFInfo
- Publication number
- CN112552741A CN112552741A CN202011594696.7A CN202011594696A CN112552741A CN 112552741 A CN112552741 A CN 112552741A CN 202011594696 A CN202011594696 A CN 202011594696A CN 112552741 A CN112552741 A CN 112552741A
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- Prior art keywords
- ink
- parts
- colored contact
- contact lenses
- drying agent
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Classifications
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- 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
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/20—Esters of polyhydric alcohols or phenols, e.g. 2-hydroxyethyl (meth)acrylate or glycerol mono-(meth)acrylate
-
- 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
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
Abstract
The invention discloses ink for a colored contact lens and an ink drying agent, wherein the ink drying agent is prepared by mixing and stirring the following components in parts by weight: algae oil: 20-40 parts; dispersing agent: 2-10 parts; solvent: 40-60 parts. The ink for the colored contact lens, which comprises the ink drying agent, is obtained by stirring the following components in parts by weight in a centrifugal mode: pigment: 20-35 parts; an ink intermediate: 30-60 parts; drying agent of printing ink: 2-5 parts; curing agent: 0.5 to 0.9 portion. The contact lens printed by the ink provided by the invention has the advantages of high color contrast and saturation, obvious wearing effect, small orange peel ratio, light orange peel degree and good stability of the ink. In addition, the drying time of the ink is obviously shortened after the ink drying agent provided by the invention is used, the pad printing time is greatly shortened in the pad printing process, and the time cost is saved.
Description
Technical Field
The invention relates to ink, in particular to ink for a colored contact lens, and also relates to a drying agent for the ink.
Background
Colored contact lenses, originally produced by hadamard americans for helping injured people to mask eye blemishes, were later widely used in film cosmetics. With the advent of flat lenses, colored contact lenses are no longer limited to the function of correcting vision, as with conventional contact lenses, and thus gradually permeate into people's daily work and life. Especially in the modern times when this person pursues personality and perfect self, colored contact lenses have long been a necessary fashion item for many young people.
The pattern and color play a decisive role in the choice of colored contact lenses. At present, the pattern patterns of the colored contact lenses on the market are more than thousands of patterns, and the colors of the patterns are different. Through market research, consumers tend to have patterns with bright colors and more obvious wearing effects when selecting the pattern colors. However, the problems that patterns are good in appearance, colors are bright, and the wearing effect of contact lenses is obvious can be simultaneously met in the market, and the problems that the colors of patterns finally formed on lenses are dark and the wearing is not obvious are caused because the color development of ink used for printing the patterns is poor when the color contact lenses are prepared. In addition, if the ink is dried for a long time in the pattern printing process, the orange peel rate of the finished lens is increased, and the wearing effect is also influenced.
Disclosure of Invention
The present invention has been made to overcome the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a color ink for contact lenses which has good stability and a good lens wearing effect.
It is another object of the present invention to provide a drying agent for use in the preparation of the above-described ink.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a printing ink drying agent for a colored contact lens, which is prepared by mixing and stirring the following components in parts by weight:
algae oil: 20-40 parts; dispersing agent: 2-10 parts; solvent: 40-60 parts.
Wherein the algae oil comprises red algae oil and white algae oil.
The dispersant is at least one selected from sodium lignosulfonate, glyceryl monostearate, polyethylene glycol 4000, and polyethylene glycol 2000.
The solvent is selected from one or more of n-butanol, n-hexanol or tert-butanol.
The stirring time is 30-60 min.
The ink for the colored contact lens, which is provided by the invention and comprises the ink drying agent, is obtained by centrifugally stirring the following components in parts by weight:
pigment: 20-35 parts; an ink intermediate: 30-60 parts; drying agent of printing ink: 2-5 parts; curing agent: 0.5 to 0.9 portion.
Preferably, the ink intermediate comprises the following components in parts by weight:
hydroxyethyl methacrylate: 20-50 parts; cyclopentanone: 10-20 parts; ethylene glycol monoethyl ether: 10-20 parts; methacrylic acid: 0.5-2 parts; methyl methacrylate: 2-4 parts; butyl acetate: 20-30 parts of a solvent; ethylene glycol: 0.2-10 parts; azobisisobutyronitrile: 0.06-10 parts; 1, 4-benzenediol: 0.003 to 0.008 portion. The preparation method comprises the following steps:
step one, mixing hydroxyethyl methacrylate, cyclopentanone, ethylene glycol monoethyl ether, methacrylic acid, methyl methacrylate, butyl acetate and azobisisobutyronitrile according to the formula ratio, placing the mixture into a reaction kettle, and stirring and reacting the mixture for 30-60min at normal temperature under the protection of nitrogen;
step two, opening a heating device of the reaction kettle, heating to 80-90 ℃, and continuing to keep the temperature and stir for reaction for 1.5-2 hours;
and step three, adding the 1, 4-benzenediol with the formula amount after the reaction kettle is cooled to the normal temperature, stirring for 1 hour, and refrigerating at 4-8 ℃ for later use.
Further, the curing agent is selected from one or more of TDI, MDI or PAPI.
Further, the rotation speed of the centrifugal stirring is 2000r/min, and the stirring time is 2-5 min.
Compared with the prior art, the invention has the following beneficial effects:
1. as can be seen from Table 1, the color contrast and saturation of the contact lens printed by the ink provided by the invention are high, and the wearing effect is obvious.
2. The orange peel ratio of the contact lens printed by the ink provided by the invention is small, and the orange peel degree is light, which shows that the ink provided by the invention has good stability and good lens wearing effect.
3. The ink drying time is obviously shortened after the ink drying agent provided by the invention is used, the pad printing time is greatly shortened in the pad printing process, and the time cost is saved.
Detailed Description
The ink for a colored contact lens and the ink drying agent of the present invention will be described in detail below with reference to specific examples.
Example 1: preparation of ink intermediates
Mixing 40 parts of hydroxyethyl methacrylate, 12 parts of cyclopentanone, 16 parts of ethylene glycol monoethyl ether, 1.5 parts of methacrylic acid, 3 parts of methyl methacrylate, 25 parts of butyl acetate, 3 parts of ethylene glycol and 0.1 part of azobisisobutyronitrile, placing the mixture in a reaction kettle, and stirring the mixture at normal temperature for 40min under the protection of nitrogen. And opening a heating device of the reaction kettle, heating to 80 ℃, and continuing to keep the temperature and stir for reaction for 2 hours. After the reaction kettle is cooled to the normal temperature, 0.005 part of 1, 4-benzenediol is added, stirred for 1 hour and then refrigerated at the temperature of 4-8 ℃ for standby.
Example 2: preparation of ink drying agent
Mixing 33 parts of red algae oil, 2 parts of sodium lignosulfonate, 2 parts of glyceryl monostearate, 2 parts of polyethylene glycol 4000, 2 parts of polyethylene glycol 2000 and 59 parts of n-butanol, placing in a container, and magnetically stirring for 40min to obtain the required desiccant G1.
Example 3: preparation of ink drying agent
Mixing 36 parts of red algae oil, 2 parts of sodium lignosulphonate, 1 part of glyceryl monostearate, 2 parts of polyethylene glycol 2000 and 36 parts of n-hexanol, placing in a container, and magnetically stirring for 30min to obtain the required desiccant G2.
Example 4: preparation of ink drying agent
Mixing 35 parts of white algae oil, 3 parts of polyethylene glycol 4000, 1 part of polyethylene glycol 2000 and 60 parts of tert-butyl alcohol, placing the mixture in a container, and magnetically stirring for 60min to obtain the required desiccant G3.
The following examples are prepared without and after addition of an ink drying agent.
Example 5
20 parts of pigment white (titanium dioxide), 47 parts of ink intermediate, 4 parts of ink drying agent G1 and 0.6 part of TDI are mixed and centrifugally stirred in a centrifugal stirrer at the rotating speed of 2000r/min for 2min to obtain the ink M1.
Comparative example 1
20 parts of pigment white (titanium dioxide), 51 parts of ink intermediate and 0.6 part of TDI are mixed and centrifugally stirred in a centrifugal stirrer at the rotating speed of 2000r/min for 2min to obtain the ink D1.
Example 6
20 parts of pigment black 31, 50 parts of an ink intermediate, 3 parts of an ink drying agent G1 and 0.7 part of TDI were mixed, and the mixture was centrifugally stirred in a centrifugal stirrer at a rotational speed of 2000r/min for 5min to obtain ink M2.
Comparative example 2
20 parts of pigment Black 31, 53 parts of an ink intermediate and 0.7 part of TDI were mixed, and the mixture was centrifugally stirred in a centrifugal stirrer at a rotational speed of 2000r/min for 5 minutes to obtain ink D2.
Example 7
21 parts of pigment blue 60, 41 parts of an ink intermediate, 4 parts of an ink drying agent G1 and 0.7 part of PAPI were mixed, and the mixture was centrifugally stirred in a centrifugal stirrer at a rotational speed of 2000r/min for 3min to obtain ink M3.
Comparative example 3
21 parts of pigment blue 60, 45 parts of the ink intermediate and 0.7 part of PAPI were mixed, and the mixture was centrifugally stirred in a centrifugal stirrer at a rotational speed of 2000r/min for 3 minutes to obtain ink D3.
Example 8
25 parts of pigment Green 36, 45 parts of an ink intermediate, 3 parts of an ink drying agent G1 and 0.6 part of MDI were mixed, and the mixture was centrifugally stirred in a centrifugal stirrer at a rotational speed of 2000r/min for 4min to obtain an ink M4.
Comparative example 4
25 parts of pigment Green 36, 48 parts of the ink intermediate and 0.6 part of MDI were mixed, and the mixture was centrifugally stirred in a centrifugal stirrer at a rotational speed of 2000r/min for 4min to obtain ink D4.
Example 9
10 parts of pigment white, 15 parts of pigment black, 46 parts of an ink intermediate, 4 parts of an ink drying agent G2 and 0.6 part of MDI were mixed and stirred centrifugally in a centrifugal stirrer at a rotational speed of 2000r/min for 2min to obtain an ink M5.
Comparative example 5
10 parts of pigment white, 15 parts of pigment black, 50 parts of an ink intermediate and 0.6 part of MDI were mixed and subjected to centrifugal stirring in a centrifugal stirrer at a rotational speed of 2000r/min for 2min to obtain ink D5.
Example 10
30 parts of pigment black, 45 parts of an ink intermediate, 5 parts of an ink drying agent G3 and 0.5 part of TDI were mixed, and the mixture was centrifugally stirred in a centrifugal stirrer at a rotational speed of 2000r/min for 2min to obtain ink M6.
Comparative example 6
30 parts of pigment black, 50 parts of the ink intermediate and 0.5 part of TDI were mixed, and the mixture was centrifugally stirred in a centrifugal stirrer at a rotational speed of 2000r/min for 2 minutes to obtain ink D6.
The ink samples M1-M6 added with the drying agent and the ink samples D1-D6 without the drying agent are printed on a special mould for the colored contact lens, 350 ink samples are pad-printed on each ink sample and dried at the high temperature of 120 ℃, wherein 300 ink samples are used for counting the orange peel data of the finished lens, and the rest 50 ink samples are subjected to color measurement once every 5min by a color measuring electronic eye DigiEye. The color measurement method comprises the following steps:
the color contact lenses coated with different ink samples are respectively placed on a ceramic reaction plate, placed in a DigiEye standard box body of a color measuring electronic eye, the samples are photographed, then a color filter is arranged on each sample, a selected color area is marked, and color data of each sample after being measured and obtained is shown in Table 1. Wherein, the color scale of the color measuring electronic eye DigiEye is CIE L*a*b*，C*H*D65 illuminant, 10 ° incident angle.
And (4) comparing the results: by L*a*b*，C*H*When the values are stable, the drying time used for the M, D sample is taken as a reference basis for comparison of drying effect, and the shorter the drying time, the better the drying effect of the drying agent is.
TABLE 1 dried L of colored contact lens inks printed with inventive ink samples*a*b*，C*H value
The present invention uses three primary colors to analyze how different the required drying times are when the Lab values of the inks without the addition of drying agent and the corresponding inks with the addition of drying agent reach the stable state in Table 1, 3 lenses are tested for each sample, and the results are shown in Table 2, with 3 repetitions of each test.
TABLE 2 drying time of colored contact lenses printed with inventive ink samples
The data in table 2 show that the drying times of inks of different colors and different formulations using drying agents are significantly reduced compared to the control group, the pad printing time is greatly shortened in the pad printing process, and the time cost is saved.
Samples were taken from 300 finished lenses from each of the foregoing ink samples and dried using the average dry times in table 2, 3 lenses were tested from each sample and 3 replicates from each test are shown in table 3.
TABLE 3 orange peel data for colored contact lenses printed with inventive ink samples
The data in Table 3 shows that the orange peel ratio of contact lenses printed with different color, different formulation inks is much lower than the control, indicating the better stability of the inks of the present invention. In addition, the orange peel is also caused by too long drying time, and the longer the drying time, the more serious the orange peel, therefore, the data in table 3 also indirectly illustrate that the drying time of the contact lens printed with the ink provided by the present invention is significantly shortened.
Claims (10)
1. The printing ink drying agent for the colored contact lenses is characterized by being prepared by mixing and stirring the following components in parts by weight:
algae oil: 20-40 parts; dispersing agent: 2-10 parts; solvent: 40-60 parts.
2. The ink desiccant for colored contact lenses according to claim 1, wherein: the algae oil comprises red algae oil and white algae oil.
3. The ink desiccant for colored contact lenses according to claim 1, wherein: the dispersing agent is at least one of sodium lignosulfonate, glyceryl monostearate, polyethylene glycol 4000 or polyethylene glycol 2000.
4. The ink desiccant for colored contact lenses according to claim 1, wherein: the solvent is selected from one or more of n-butanol, n-hexanol or tert-butanol.
5. The ink desiccant for colored contact lenses according to any one of claims 1 to 4, wherein: the stirring time is 30-60 min.
6. An ink for colored contact lenses comprising the ink drying agent of claim 1, wherein the ink is obtained by centrifugal stirring of the following components in parts by weight:
pigment: 20-35 parts; an ink intermediate: 30-60 parts; drying agent of printing ink: 2-5 parts; curing agent: 0.5 to 0.9 portion.
7. The ink for colored contact lenses according to claim 6, wherein the ink intermediate comprises the following components in parts by weight:
hydroxyethyl methacrylate: 20-50 parts; cyclopentanone: 10-20 parts; ethylene glycol monoethyl ether: 10-20 parts; methacrylic acid: 0.5-2 parts; methyl methacrylate: 2-4 parts; butyl acetate: 20-30 parts of a solvent; ethylene glycol: 0.2-10 parts; azobisisobutyronitrile: 0.06-10 parts; 1, 4-benzenediol: 0.003 to 0.008 portion.
8. The ink for colored contact lenses according to claim 7, wherein the ink intermediate is prepared by the following method:
step one, mixing hydroxyethyl methacrylate, cyclopentanone, ethylene glycol monoethyl ether, methacrylic acid, methyl methacrylate, butyl acetate and azobisisobutyronitrile according to the formula ratio, placing the mixture into a reaction kettle, and stirring and reacting the mixture for 30-60min at normal temperature under the protection of nitrogen;
step two, opening a heating device of the reaction kettle, heating to 80-90 ℃, and continuing to keep the temperature and stir for reaction for 1.5-2 hours;
and step three, adding the 1, 4-benzenediol with the formula amount after the reaction kettle is cooled to the normal temperature, stirring for 1 hour, and refrigerating at 4-8 ℃ for later use.
9. The colored contact lens ink according to any one of claims 6 to 8, wherein the curing agent is selected from one or more of TDI, MDI or PAPI.
10. The colored contact lens ink according to any one of claims 6 to 8, wherein the rotational speed of the centrifugal stirring is 2000r/min, and the stirring time is 2 to 5 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594696.7A CN112552741A (en) | 2020-12-29 | 2020-12-29 | Ink for color contact lenses and ink drying agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594696.7A CN112552741A (en) | 2020-12-29 | 2020-12-29 | Ink for color contact lenses and ink drying agent |
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| CN112552741A true CN112552741A (en) | 2021-03-26 |
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| CN202011594696.7A Pending CN112552741A (en) | 2020-12-29 | 2020-12-29 | Ink for color contact lenses and ink drying agent |
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Citations (14)
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|---|---|---|---|---|
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