CN116790152B - Printing ink, grid film and application of printing ink - Google Patents
Printing ink, grid film and application of printing ink Download PDFInfo
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- CN116790152B CN116790152B CN202310747797.0A CN202310747797A CN116790152B CN 116790152 B CN116790152 B CN 116790152B CN 202310747797 A CN202310747797 A CN 202310747797A CN 116790152 B CN116790152 B CN 116790152B
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- 238000007639 printing Methods 0.000 title claims abstract description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000006229 carbon black Substances 0.000 claims abstract description 15
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 9
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 239000000080 wetting agent Substances 0.000 claims abstract description 8
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 6
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 6
- 239000012528 membrane Substances 0.000 claims description 26
- 230000001954 sterilising effect Effects 0.000 claims description 16
- 238000004659 sterilization and disinfection Methods 0.000 claims description 15
- 229920002635 polyurethane Polymers 0.000 claims description 14
- 239000004814 polyurethane Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 12
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 claims description 9
- 229920000728 polyester Polymers 0.000 claims description 9
- 125000000129 anionic group Chemical group 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229920001634 Copolyester Polymers 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 2
- 238000009736 wetting Methods 0.000 abstract description 24
- 230000032683 aging Effects 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000000976 ink Substances 0.000 description 41
- 230000000052 comparative effect Effects 0.000 description 15
- 235000010215 titanium dioxide Nutrition 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000001038 titanium pigment Substances 0.000 description 5
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000004388 gamma ray sterilization Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- -1 pentaerythritol ester Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention provides ink, which comprises, by weight, 45-80 parts of aqueous resin, 0.5-2 parts of a wetting agent, 0.1-0.5 part of an antioxidant, 1.5-3 parts of an ultraviolet absorber, 15-25 parts of titanium dioxide, 5-15 parts of carbon black and 30-50 parts of a solvent. The grid film comprises a filter film and printing ink printed on the surface of the filter film, wherein the printing ink forms a grid shape on the surface of the filter film. The grid film printed with the printing ink of the technical scheme has the advantages that the wetting time can reach within 1 second, the contact angle can reach about 55 degrees, the complete wetting time can still be kept within 20 seconds or less even within 10 seconds after the same aging condition is adopted, the wetting performance is obviously improved, the excellent wetting performance is kept for a longer time, and the service cycle of the grid film can be effectively prolonged.
Description
Technical Field
The invention relates to the technical field of microporous filter membranes, in particular to ink, a grid membrane and application of the ink.
Background
The grating film is a microporous filtering film formed by special treatment of additives and the like on a supporting layer made of high molecular chemical materials, and is a porous film filtering material with relatively uniform pore size distribution and penetrability. Cutting the grille membrane into a certain shape and size, printing ink on the surface of the grille membrane to form a grille, cutting the grille membrane into a wafer with a certain size, packaging the wafer, and sterilizing the wafer to obtain a grille membrane finished product. The grid film is printed on the surface of the grid film by using ink in the preparation process to form an ink grid so as to facilitate the colony counting of the later biological verification seed.
The grid membrane itself is a hydrophilic membrane and the wettability of the membrane is highly desirable when filtering the medium. At present, although the ink types are various, most of the inks on the market have a suppressed wettability to the grid film. In addition, in order to achieve a better sterilization effect in the sterilization process, the sterilization dose is relatively large, and the more obvious the damage to the grid film structure and the ink component structure caused by the excessive sterilization dose is, the more hydrophilic group structure is damaged to a certain extent, and the hydrophilicity of the grid film is also affected. When the grille membrane is just put in storage, the wetting time of the grille membrane is 1-2 seconds, the contact angle is about 85 ℃, the grille membrane is aged for 168 hours under the constant temperature and humidity condition of 85 ℃ and 85RH, the wetting time of the grille membrane is 2-3 minutes, the contact angle is about 105 ℃, and the wettability is seriously reduced as shown in the reaction contact angle views before and after aging shown in figures 7 and 8, so that the service cycle of the grille membrane is seriously influenced.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention aims at:
In a first aspect, an ink is provided, which is characterized by comprising, by weight, 45-80 parts of an aqueous resin, 0.5-2 parts of a wetting agent, 0.1-0.5 part of an antioxidant, 1.5-3 parts of an ultraviolet absorber, 15-25 parts of titanium dioxide, 5-15 parts of carbon black and 30-50 parts of a solvent.
With reference to the first aspect, in one implementation manner, the aqueous resin includes a mixture of aqueous polyester and aqueous polyurethane, the addition amount of the aqueous polyester is 40-60 parts by weight, and the addition amount of the aqueous polyurethane is 5-20 parts by weight.
With reference to the first aspect, in one implementation manner, the particle size of the titanium dioxide is 0.2-0.3 μm; and/or the particle diameter of the carbon black is 0.1-0.5 mu m.
With reference to the first aspect, in one implementation, the wetting agent comprises a polyether siloxane copolymer.
With reference to the first aspect, in one implementation, the aqueous polyester comprises an anionic aqueous copolyester; and/or, the aqueous polyurethane comprises carboxylic acid type anionic aqueous polyurethane.
With reference to the first aspect, in an implementation manner, the ultraviolet absorber includes UV-234 and UV-531, the addition amount of the UV-234 is 1-2 parts by weight, and the addition amount of the UV-531 is 0.5-1 part by weight.
In a second aspect, there is also provided a grille membrane, which is characterized in that: the ink comprises a filter membrane and the ink printed on the surface of the filter membrane in any implementation manner, wherein the ink forms a grid shape on the surface of the filter membrane.
With reference to the second aspect, in one implementation, the gate film is sterilized by gamma radiation, and the sterilization dose of the gamma radiation sterilization is 20kGy.
With reference to the second aspect, in one implementation, the width of each grid of the grid-like ink is 3mm; the width of the partition lines between each grid of the grid-shaped ink is 0.06-0.1 mm.
In a third aspect, an ink is used to print on the surface of a grid film to form a grid, where the ink is an ink according to any implementation manner of the first aspect.
As described above, the ink and the grid film of the present invention at least include the following advantageous effects: the grid film printed with the printing ink of the technical scheme has the advantages that the wetting time can reach within 1 second, the contact angle can reach about 55 degrees, the complete wetting time can still be kept within 20 seconds or less even within 10 seconds after the same aging condition is adopted, the wetting performance is obviously improved, the excellent wetting performance is kept for a longer time, and the service cycle of the grid film can be effectively prolonged.
Drawings
FIG. 1 is a schematic view of a grid film according to an exemplary embodiment of the present invention;
FIG. 2 is a view of the wetting contact angle of the aged grille film of example 1;
FIG. 3 is a view of the wetting contact angle of the aged grille film of example 2;
FIG. 4 is a view of the wetting contact angle of the aged grille film in example 3;
FIG. 5 is a view of the wet contact angle of the aged grille film of example 4;
FIG. 6 is a view of the wetting contact angle after aging of the grille film in example 5;
FIG. 7 is a prior art view of wetting contact angle before aging of a grid film;
FIG. 8 is a view of wetting contact angle after aging of a prior art grid film;
Wherein 1-grid film; 2-printing ink; 3-isolating lines.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
It should be noted that: the chemicals and the like used in the technical scheme of the invention are all commercial products.
Wherein the ultraviolet absorber UV-234 is an organic compound with molecular weight 846.7645, and the name is 2- (2 ' -hydroxy-3 ',5' -bis (a, a-dimethylbenzyl) phenyl) benzotriazole. The ultraviolet absorber UV-531 is 2-hydroxy-4-n-octoxybenzophenone. Both can absorb ultraviolet light, and is an efficient anti-aging auxiliary agent.
Wherein, the antioxidant is selected from antioxidant 1010, and the chemical name of antioxidant 1010 is: the tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester has excellent oxidation resistance. The service life of the product can be effectively prolonged.
Wherein the solvent comprises one or more of alcohols, ethers, esters and water.
Firstly, the technical scheme of the invention provides ink, which comprises, by weight, 45-80 parts of aqueous resin, 0.5-2 parts of wetting agent, 0.1-0.5 part of antioxidant, 1.5-3 parts of ultraviolet absorber, 15-25 parts of titanium pigment, 5-15 parts of carbon black and 30-50 parts of solvent. The preparation method of the ink comprises the following steps: mixing the aqueous resin with a proper amount of solvent, stirring and uniformly mixing under stirring, continuously stirring and uniformly mixing the added wetting agent, antioxidant and ultraviolet absorbent, and finally adding titanium white and carbon black, and stirring and uniformly mixing.
In some embodiments, the aqueous resin comprises a mixture of aqueous polyester and aqueous polyurethane, wherein the aqueous polyester is added in an amount of 40-60 parts by weight and the aqueous polyurethane is added in an amount of 5-20 parts by weight.
In some embodiments, the titanium dioxide has a particle size of 0.2 to 0.3 μm.
In some embodiments, the carbon black has a particle size of 0.1 to 0.5 μm.
In some embodiments, the wetting agent is preferably a polyether siloxane copolymer.
In some embodiments, the aqueous polyester is selected from anionic aqueous copolyesters; the aqueous polyurethane is carboxylic acid type anionic aqueous polyurethane.
In some embodiments, the ultraviolet absorber comprises UV-234 and UV-531, wherein the UV-234 is added in an amount of 1-2 parts by weight and the UV-531 is added in an amount of 0.5-1 part by weight.
In addition, fig. 1 is a schematic structural view of a grating film according to an exemplary embodiment of the present invention. As shown in fig. 1, there is also provided a grating film comprising a filter film and ink printed on the surface of the filter film, wherein the ink forms a grating shape on the surface of the filter film. I.e. the use of the ink for printing a grid on the surface of a grid film.
In some embodiments, the gate film is sterilized by gamma radiation at a sterilization dose of 20kGy.
In some embodiments, the width L1 of each cell of the grid-like ink is 3mm as shown in fig. 1.
In some embodiments, the width of the lines of separation between each grid of the grid-like ink is 0.06-0.1 mm. .
The present invention will be described in detail with reference to specific exemplary examples. It is also to be understood that the following examples are given solely for the purpose of illustration and are not to be construed as limitations upon the scope of the invention, as many insubstantial modifications and variations are within the scope of the invention as would be apparent to those skilled in the art in light of the foregoing disclosure. The specific process parameters and the like described below are also merely examples of suitable ranges, i.e., one skilled in the art can make a suitable selection from the description herein and are not intended to be limited to the specific values described below.
Examples 1 to 7
Step1 preparation of ink:
the printing ink is prepared by mixing anionic aqueous copolyester, carboxylic acid type anionic aqueous polyurethane, a solvent, polyether siloxane copolymer, antioxidant 1010, UV234, UV531, titanium pigment and carbon black, wherein the aqueous copolyester, the aqueous polyurethane, the solvent, the polyether siloxane copolymer, the antioxidant 1010, the UV234, the UV531, the titanium pigment and the carbon black are added according to the weight part ratio shown in the table 1, the particle size range of the titanium pigment is 0.2-0.3 mu m, and the particle size range of the carbon black is 0.1-0.5 mu m.
Step2 preparation of a grille film:
Printing ink on the surface of a filtering membrane with the size of 220 mm or 280mm, and performing screen printing to ensure that the ink is distributed in a grid shape, wherein the width of the grid is 3mm plus or minus 0.1mm, and the line width of the grid is 0.08 plus or minus 0.02mm.
Step3, sterilization:
cutting the grid film printed with the ink grid into round pieces with the diameter of 47mm, packaging, and then carrying out gamma ray sterilization, wherein the sterilization dosage is controlled to be 20kGy.
Table 1 weight part ratio of each component of each ink of examples 1 to 7
And (3) performance detection: the wet performance of the sterilized grid film samples of examples 1 to 7 was measured, respectively, to obtain the following results: the contact angles are all around 55 degrees, and the wetting time is all within 1 s.
Burn-in test
The sterilized grid film samples of examples 1 to 7 were subjected to aging treatment at a constant temperature and humidity of 85℃and a humidity of 85RH for 168 hours, respectively, and then the wettability of the samples was examined, and the results are shown in Table 2. The contact angle views of examples 1 to 5 are shown in fig. 1 to 5:
TABLE 2 test results of aged grille film samples of examples 1 to 7 after sterilization
The results illustrate: in the technical scheme of the invention, the finished grille film just put in storage has excellent wettability, the contact angle is about 55 degrees, and the wettability is obviously improved within 1 s. After the aging test, the contact angle is about 65 degrees, the complete wetting time can still be kept between a few seconds and tens of seconds, the wetting performance can be kept for a longer time, and the service cycle of the grid film can be effectively prolonged.
Comparative examples 1 to 5
Step1 preparation of ink: the formulation of the ink and the addition amount of each component were added as shown in Table 3, and the particle size ranges of the titanium pigment and the carbon black were selected as shown in Table 3.
Step2 preparation of a grille film: printing ink on the surface of a filtering membrane with the size of 220 mm or 280mm, and performing screen printing to ensure that the ink is distributed in a grid shape, wherein the width of the grid is 3mm plus or minus 0.1mm, and the line width of the grid is 0.08 plus or minus 0.02mm.
Step3, sterilization: cutting the grid film printed with the ink grid into round pieces with the diameter of 47mm, packaging, and then carrying out gamma ray sterilization, wherein the sterilization dosage is controlled to be 20kGy.
TABLE 3 weight part ratio of the components of the inks of comparative examples 1 to 5
And (3) performance detection: the sterilized grating film samples of comparative examples 1 to 5 were subjected to wettability measurement for 1 to 2 seconds with a contact angle of about 85 °.
Compared with the grid film samples after sterilization in examples 1-7, the grid film samples in comparative examples 1-5 have relatively slower wetting time and larger contact angle, which indicates that the grid film after sterilization in the scheme of the invention has better wetting performance.
Burn-in test
The sterilized grille film samples of comparative examples 1 to 5 were aged for 168 hours under constant temperature and humidity conditions of 85℃and 85RH, respectively, and then the wettability of the samples was examined. The results are shown in Table 4:
TABLE 4 test results of the sterilized grille film samples of comparative examples 1 to 5 after aging
| Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | |
| Wetting time/s | 95 | 40 | 25 | 10 | 16 |
| Contact angle/° | 102 | 90 | 85 | 70 | 73 |
| Whether the screen is blocked or not and whether the screen is difficult to clean | Is that | Is that | Whether or not | Whether or not | Whether or not |
The results illustrate:
from the above table, it is seen that comparative examples 4 and 5 are viable from the viewpoint of whether the screen is clogged and the wetting time, while comparative examples 1, 2 and 3 are poor in effect, and that the formulations of comparative examples 1, 2 and 3 are lacking in a certain component of the formulation of the present invention relative to the formulations of 4 and 5, and that only the components and proportions of the formulation of the present invention are used, and that a better technical effect is finally achieved.
Compared with comparative examples 2 and 3, the two are only different in the selection of the particle sizes of the titanium dioxide and the carbon black, and the wetting time of the finally obtained grille film sample is optimized from 40s to 25s by adopting the range of the particle sizes of the titanium dioxide and the carbon black in the technical scheme of the invention, so that the particle size selection of the titanium dioxide and the carbon black is important to the performance influence of the grille film.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. It is therefore intended that all equivalent modifications and changes made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the appended claims.
Claims (9)
1. The printing ink is characterized by comprising, by weight, 45-80 parts of aqueous resin, 0.5-2 parts of wetting agent, 0.1-0.5 part of antioxidant, 1.5-3 parts of ultraviolet absorber, 15-25 parts of titanium dioxide, 5-15 parts of carbon black and 30-50 parts of solvent, wherein the particle size of the titanium dioxide is 0.2-0.3 mu m, and the particle size of the carbon black is 0.1-0.5 mu m;
The aqueous resin comprises a mixture of aqueous polyester and aqueous polyurethane, wherein the addition amount of the aqueous polyester is 40-60 parts by weight, and the addition amount of the aqueous polyurethane is 5-20 parts by weight.
2. The ink of claim 1, wherein: the wetting agent comprises a polyether siloxane copolymer.
3. The ink of claim 1, wherein: the aqueous polyester comprises an anionic aqueous copolyester.
4. The ink of claim 1, wherein: the aqueous polyurethane comprises carboxylic acid type anionic aqueous polyurethane.
5. The ink of claim 1, wherein: the ultraviolet absorber comprises, by weight, 1-2 parts of UV-234 and 0.5-1 part of UV-531, wherein the UV-234 and the UV-531 are added.
6. A grille membrane, characterized by: an ink according to any one of claims 1 to 5, comprising a filter membrane and printed on the surface of the filter membrane, wherein the ink forms a grating shape on the surface of the filter membrane.
7. A grille membrane as set forth in claim 6, wherein: the grid film is sterilized by gamma rays, and the sterilization dose of the gamma rays is 20kGy.
8. A grille membrane as set forth in claim 6, wherein: the width of each grid of the grid-shaped ink is 3mm; the width of the partition lines between each grid of the grid-shaped ink is 0.06-0.1 mm.
9. Use of an ink according to any one of claims 1 to 5 for printing on a grating film surface to form a grating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310747797.0A CN116790152B (en) | 2023-06-21 | 2023-06-21 | Printing ink, grid film and application of printing ink |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10052238A1 (en) * | 2000-10-21 | 2002-05-02 | Schleicher & Schuell Gmbh | Membrane filter plate used for determining germination index in liquids in pharmaceutical and food industries has printed characterization marks |
| CN108250835A (en) * | 2018-04-17 | 2018-07-06 | 中山创美涂料有限公司 | A kind of aqueous PET heat shrink films plastic printing ink and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0940427A1 (en) * | 1998-03-06 | 1999-09-08 | Imation Corp. | Method of preparing a microporous film, and image accepting member |
| AU4191799A (en) * | 1999-05-19 | 2000-12-05 | 3M Innovative Properties Company | Printing of olefinic substrates comprising a non-ionic fluorochemical surfactant |
| CN102151488A (en) * | 2011-03-04 | 2011-08-17 | 杭州泰林生物技术设备有限公司 | Grating filter membrane with sterilization indicating function |
| JP2019513578A (en) * | 2016-03-08 | 2019-05-30 | アベリー・デニソン・コーポレイションＡｖｅｒｙ Ｄｅｎｎｉｓｏｎ Ｃｏｒｐｏｒａｔｉｏｎ | Pressure sensitive laminate for facing film and printing |
| CN108752626A (en) * | 2018-06-27 | 2018-11-06 | 桂林电器科学研究院有限公司 | Filler dispersion liquid and preparation method thereof for black polyamide thin film |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10052238A1 (en) * | 2000-10-21 | 2002-05-02 | Schleicher & Schuell Gmbh | Membrane filter plate used for determining germination index in liquids in pharmaceutical and food industries has printed characterization marks |
| CN108250835A (en) * | 2018-04-17 | 2018-07-06 | 中山创美涂料有限公司 | A kind of aqueous PET heat shrink films plastic printing ink and preparation method thereof |
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