CN115612345A - Alcohol-soluble low-odor gold ink suitable for sanitary material film and application thereof - Google Patents
Alcohol-soluble low-odor gold ink suitable for sanitary material film and application thereof Download PDFInfo
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- CN115612345A CN115612345A CN202211096650.1A CN202211096650A CN115612345A CN 115612345 A CN115612345 A CN 115612345A CN 202211096650 A CN202211096650 A CN 202211096650A CN 115612345 A CN115612345 A CN 115612345A
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- odor
- alcohol
- gold ink
- soluble low
- gold
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 239000010931 gold Substances 0.000 title claims abstract description 61
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 61
- 239000000463 material Substances 0.000 title claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003085 diluting agent Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 abstract description 3
- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical compound CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- -1 polypropylene Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 abstract 1
- QRJOYPHTNNOAOJ-UHFFFAOYSA-N copper gold Chemical compound [Cu].[Au] QRJOYPHTNNOAOJ-UHFFFAOYSA-N 0.000 abstract 1
- 229920006276 ketonic resin Polymers 0.000 abstract 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 abstract 1
- 239000010408 film Substances 0.000 description 42
- 230000000052 comparative effect Effects 0.000 description 24
- 238000012360 testing method Methods 0.000 description 15
- 239000002904 solvent Substances 0.000 description 12
- 239000002390 adhesive tape Substances 0.000 description 10
- 150000002632 lipids Chemical class 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 230000035943 smell Effects 0.000 description 7
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 235000019198 oils Nutrition 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 238000007790 scraping Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000008786 sensory perception of smell Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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
- C09D11/02—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
-
- 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
- C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
-
- 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
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
-
- 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
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
- C09D11/103—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds of aldehydes, e.g. phenol-formaldehyde resins
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention provides alcohol-soluble low-odor gold ink suitable for a sanitary film and application thereof, wherein the alcohol-soluble low-odor gold ink comprises the following components in percentage by weight: 12-18% of copper gold powder, 20-30% of polyvinyl butyral, 5-10% of ketone-aldehyde resin, 0.5-1% of low molecular weight polypropylene wax, 3-5% of acetyl tri-n-butyl citrate, 25-40% of ethanol and 10-15% of propylene glycol ethyl ether.
Description
Technical Field
The invention relates to the technical field of gold ink, in particular to alcohol-soluble low-odor gold ink suitable for a sanitary material film and application thereof.
Background
The gold ink (bronze ink) is made of copper alloy powder as pigment. A golden ink for printing is prepared from special binder and gold powder. Gold ink with three colors of cyan, red and red can be prepared according to the gold light; the printing plate type includes offset gold ink, relief gold ink, intaglio gold ink and silk-screen gold ink. The manufacturing types of the gold ink comprise gold ink manufactured by an ink manufacturing factory and gold ink prepared by blending gold oil and gold powder used by a printing factory.
The gold color can give people a gorgeous and noble feeling, and the glittering metal color of the gold light cannot be expressed by the spectrum color. Therefore, the gold ink printing is widely used in the packaging decoration printing process and plays a good role in improving the image of commodities. However, since the main raw material of gold ink is brass powder, it is chemically an active metal and is liable to cause discoloration. Moreover, the toilet paper packaging film is sensitive to smell, low smell and low residue are the first choice, but the existing gold ink mainly uses a lipid solvent to meet various performance requirements, and has defects in smell fastness. Therefore, it is necessary to provide an alcohol-soluble low-odor gold ink suitable for a sanitary material film and an application thereof to solve the above existing problems.
Disclosure of Invention
In view of the above, the present invention provides an alcohol-soluble low-odor gold ink suitable for a toilet paper film and an application thereof, wherein the gold ink uses an alcohol solvent to replace the existing common lipid solvent, and can maintain good performances, high odor fastness, low odor and low residue.
In order to achieve the technical effects, the invention provides alcohol-soluble low-odor gold ink suitable for a sanitary material film and application thereof, and the following technical scheme is adopted:
an alcohol-soluble low-odor gold ink suitable for a sanitary material film comprises the following components in percentage by weight:
the application of the alcohol-soluble low-odor gold ink suitable for the toilet paper film is the application of the alcohol-soluble low-odor gold ink suitable for the toilet paper film in toilet paper film printing.
Furthermore, the printing speed of the sanitary material film is 200-300m/min.
Further, the alcohol-soluble low-odor gold ink is diluted by a diluent before being applied to the printing of the toilet paper film, and the weight ratio of the diluent to the alcohol-soluble low-odor gold ink is 1.
Further, the diluent is ethanol.
The technical scheme of the invention at least comprises the following beneficial effects:
1. the gold ink disclosed by the invention replaces the conventional common lipid solvent with an alcohol solvent, and can keep various good performances (adhesive tape adhesion, oil and friction resistance, heat sealing resistance and water resistance);
2. the gold ink has high color fastness and low odor, and can meet the requirement of special customers on high performance of the sanitary film;
3. low residue, and is safer and more environment-friendly.
Drawings
FIG. 1 is a transparent glass reagent bottle of the present invention, which is equipped with a gold-coated film sheet and sealed with an adhesive tape in test example 2;
FIG. 2a is a drawing showing the film pieces taken out on the 9 th day of the example 7 group in the test example 2 of the present invention, and FIG. 2b is a drawing showing the film pieces taken out on the 9 th day of the comparative example 1 group in the test example 2 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1-2 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the description of the embodiments of the invention given above, are within the scope of protection of the invention.
Example 1
An alcohol-soluble low-odor gold ink suitable for a sanitary material film comprises the following components in percentage by weight:
example 2
An alcohol-soluble low-odor gold ink suitable for a sanitary material film comprises the following components in percentage by weight:
example 3
An alcohol-soluble low-odor gold ink suitable for a sanitary material film comprises the following components in percentage by weight:
example 4
An alcohol-soluble low-odor gold ink suitable for a sanitary material film comprises the following components in percentage by weight:
example 5
An alcohol-soluble low-odor gold ink suitable for a sanitary material film comprises the following components in percentage by weight:
example 6
An alcohol-soluble low-odor gold ink suitable for a sanitary material film comprises the following components in percentage by weight:
example 7
An alcohol-soluble low-odor gold ink suitable for a sanitary material film comprises the following components in percentage by weight:
comparative example 1
The existing commercial gold ink mainly comprising lipid solvent;
comparative example 2
An alcohol-soluble low-odor gold ink suitable for a sanitary material film comprises the following components in percentage by weight:
comparative example 3
An alcohol-soluble low-odor gold ink suitable for a sanitary material film comprises the following components in percentage by weight:
test example 1
Taking products of examples 1-7 and comparative examples 2-3, respectively compounding and diluting the products with a diluent ethanol according to a weight ratio of 1, applying the products to medium-speed printing (200 m/min) of the sanitary material film, taking the product of comparative example 1, applying the product of comparative example 1 to the medium-speed printing (200 m/min) of the sanitary material film by adopting the conventional method, and detecting the performance after the printing is finished.
Testing items, testing modes and judging:
1. adhesive force of the adhesive tape: uniformly adhering a 3M600 adhesive tape on the surface layer of the ink, pressing with a thumb for three times, slowly peeling at a constant speed to see whether the ink falls off from the adhesive tape or not, wherein the color of the adhesive tape is more than 3%;
2. oil wear resistance: fixing 10N abrasive blocks on the surface of the abrasive block by using A4 paper with a cut size on a SURTHERLANDR 2000TM device, fixing a film on the device, uniformly coating vegetable oil, and grinding for 20 times (usually 2 grades);
3. rub resistance (mechanical grinding): a4 paper with a size cut by a SURTHERLAND 2000 rubbing instrument is fixed on the surface of a 10N rubbing block for a rubbing block, a film is fixed on equipment, rubbing is carried out for 50 times under 3-grade conditions, and after testing, the abrasion resistance is evaluated;
4. heat sealing resistance: an IDM L001 of a heat sealing instrument, wherein the temperature of an upper sealing knife is 170 ℃, the temperature of a lower sealing knife is 170 ℃, the pressure is 3.5kg, and the time is 0.5S; heating a standby device (using aluminum foil paper) to a temperature to be detected, then padding A4 paper on an upper sealing cutter, placing the ink surface of a scraped sample on the A4 paper, covering pure aluminum on the ink surface, contacting the aluminum surface with an upper sealing cutter opening, carrying out high-temperature pressure test, taking out the aluminum foil after testing for 3-5 times at different positions, observing whether the ink and the aluminum foil surface are transferred onto the aluminum foil, and judging the aluminum foil to be qualified according to the result;
5. water resistance test: and (3) completely drying the printed scratch sample, soaking the scratch sample in water for 10 minutes, dripping water, standing for about 5 seconds, rubbing with a paper towel back and forth for 10 times to see whether the scratch sample is faded or not, and judging the water resistance.
Test tools and requirements:
sample scraping equipment: RK intaglio meter;
the scraping method comprises the following steps: machine printing;
scraping viscosity: zahn #2 cup 15S;
visual effect of scraping sample: visual inspection of the effect (color, leveling) is carried out through the Lab value and the color difference value;
substrate: a PE film.
And (3) testing results: see table 1.
| Adhesive force of adhesive tape | Oil-resistant mill | Antifriction (machine grinder) | Heat-resistant seal | Water resistance test | |
| Example 1 | OK | OK | OK | OK | OK |
| Example 2 | OK | OK | OK | OK | OK |
| Example 3 | OK | OK | OK | OK | OK |
| Example 4 | OK | OK | OK | OK | OK |
| Example 5 | OK | OK | OK | OK | OK |
| Example 6 | OK | OK | OK | OK | OK |
| Example 7 | OK | OK | OK | OK | OK |
| Comparative example 1 | OK | OK | OK | OK | OK |
| Comparative example 2 | NO | OK | NO | OK | OK |
| Comparative example 3 | NO | OK | OK | NO | NO |
TABLE 1
As can be seen from Table 1: when the ink is applied to medium-speed (200 m/min) printing of a sanitary material film, the performances of the products in examples 1-7 in the aspects of adhesive tape adhesion, oil abrasion resistance, friction resistance (mechanical abrasion), heat sealing resistance and water resistance can reach the performances of the existing commercial gold ink mainly comprising a lipid solvent in comparative example 1; comparative example 2 does not add low molecular weight polypropylene wax, comparative example 3 does not add acetyl tri-n-butyl citrate, and the product performance does not reach the performance of the existing commercial gold ink taking lipid solvent as the main in comparative example 1. The gold ink of the invention uses the alcohol solvent to replace the prior common lipid solvent, and can keep various good performances (adhesive tape adhesion, oil-resistant abrasion, friction (machine abrasion), heat-resistant seal and water-resistant).
Test example 2
And (3) experimental setting:
collecting sanitary material film (PE film), cutting into 15cmX15cm square film pieces (200 pieces), and dividing into 8 groups (each group has 25 pieces);
rolling and wrapping 20g of the gold ink products of examples 1-7 and the gold ink product of comparative example 1 which is mainly prepared from lipid solvent in the prior market by using 8 groups of thin film sheets, respectively, then putting the gold ink products into a reagent bottle made of transparent glass, covering the reagent bottle with a cover, and sealing the reagent bottle by using an adhesive tape, wherein the groups of examples 1-7 and comparative example 1 are numbered as shown in figure 1;
putting all the groups 1 to 7 of the examples and the group 1 of the comparative example into a drying oven, setting the temperature at 60 ℃, opening the covers on the 3 rd day, the 6 th day and the 9 th day respectively, and comparing the volatile smells of the groups 1 to 7 of the examples and the group 1 of the comparative example through olfaction; then, on the 9 th day, all the pieces of film in the reagent bottles were taken out, and the colors of the pieces of film in the groups of examples 1 to 7 and the group of comparative example 1 were compared.
And (3) test results: after the materials are put into a drying box, the cover is opened on the 3 rd day, the 6 th day and the 9 th day, the volatile smells of the groups 1 to 7 of the examples are obviously distinguished to be smaller than that of the group 1 of the comparative example through olfactory comparison, and the volatile smells of the groups 1 to 7 of the examples are not greatly different on the 3 rd day, the 6 th day and the 9 th day, and the smells of the group 1 of the comparative example are obviously increased; the golden ink has high odor fastness and low odor, and can meet the requirement of special customers on high performance of the toilet paper film.
On day 9, all the film pieces in the reagent bottles were taken out and washed clean, and the color of the film pieces in the groups of examples 1 to 7 was compared with that of the group of comparative example 1, and it can be seen that the film pieces in the groups of examples 1 to 7 did not turn yellow, while the film pieces in the group of comparative example 1 were significantly turned yellow; as shown in FIG. 2, a is the film piece taken out on the 9 th day of the group of example 7, b is the film piece taken out on the 9 th day of the group of comparative example 1, and the original photograph (with the attached drawing being subjected to a decoloring treatment) clearly shows that a is transparent and colorless and b is yellowish; compared with the existing lipid solvent gold ink, the gold ink disclosed by the invention is low in residue, and is safer and more environment-friendly.
The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are also considered to be within the scope of the invention.
Claims (7)
1. An alcohol-soluble low-odor gold ink suitable for a sanitary material film is characterized by comprising the following components in percentage by weight:
2. the alcohol-soluble low-odor gold ink suitable for the sanitary material film according to claim 1, which is characterized by comprising the following components in percentage by weight:
3. the alcohol-soluble low-odor gold ink suitable for the toilet paper film as claimed in claim 1, which comprises the following components in percentage by weight:
4. the use of the alcohol-soluble low-odor gold ink suitable for a sanitary film according to any one of claims 1 to 3 in printing of the sanitary film.
5. The use of the alcohol-soluble low-odor gold ink as set forth in claim 4, wherein the printing speed of the toilet paper film is 200 to 300m/min.
6. The use of the alcohol-soluble low-odor gold ink suitable for the toilet paper film as claimed in claim 4, wherein the alcohol-soluble low-odor gold ink is diluted by a diluent before being applied to the toilet paper film printing, and the weight ratio of the diluent to the alcohol-soluble low-odor gold ink is 1.
7. The use of an alcohol-soluble, low-odor gold ink suitable for use in hygiene material films as claimed in claim 6, wherein the diluent is ethanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211096650.1A CN115612345A (en) | 2022-09-08 | 2022-09-08 | Alcohol-soluble low-odor gold ink suitable for sanitary material film and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211096650.1A CN115612345A (en) | 2022-09-08 | 2022-09-08 | Alcohol-soluble low-odor gold ink suitable for sanitary material film and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115612345A true CN115612345A (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211096650.1A Pending CN115612345A (en) | 2022-09-08 | 2022-09-08 | Alcohol-soluble low-odor gold ink suitable for sanitary material film and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115612345A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105038404A (en) * | 2015-09-09 | 2015-11-11 | 上海纳诺微新材料科技有限公司 | Ink compound and writing tool |
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2022
- 2022-09-08 CN CN202211096650.1A patent/CN115612345A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105038404A (en) * | 2015-09-09 | 2015-11-11 | 上海纳诺微新材料科技有限公司 | Ink compound and writing tool |
Non-Patent Citations (1)
| Title |
|---|
| 蒋平平主编: "《高分子材料的循环利用》", 北京理工大学出版社 * |
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Application publication date: 20230117 |