CN112063225B - UV screen printing silver oil - Google Patents
UV screen printing silver oil Download PDFInfo
- Publication number
- CN112063225B CN112063225B CN202010846295.XA CN202010846295A CN112063225B CN 112063225 B CN112063225 B CN 112063225B CN 202010846295 A CN202010846295 A CN 202010846295A CN 112063225 B CN112063225 B CN 112063225B
- Authority
- CN
- China
- Prior art keywords
- resin
- silver
- acrylic group
- screen printing
- monomer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
-
- 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
-
- 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
-
- 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
- C09D11/104—Polyesters
-
- 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
- C09D11/10—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
- 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
- C09D11/14—Printing inks based on carbohydrates
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Polymerisation Methods In General (AREA)
Abstract
The invention provides UV screen printing silver oil which comprises gloss oil and silver paste; the gloss oil comprises resin, a monomer, an auxiliary agent and an initiator; the resin is a mixture of acrylic group-containing resin and acrylic group-free resin; the monomer is an acrylic group-containing monomer; the auxiliary agent comprises a stabilizer, a flatting agent, a defoaming agent, a pigment and color paste; the gloss oil is low in polarity, the relative dielectric constant is 2.7-3.2, the silver paste is high in polarity, and the relative dielectric constant is 16-20; the mass ratio of the acrylic group-containing resin to the acrylic group-free resin was 2: 1.
Description
Technical Field
The invention belongs to the technical field of printing ink, and particularly relates to UV screen printing silver oil.
Background
UV screen printing inks have been in the past for over 30 years since the invention. With the development of society, the requirements of people on environmental awareness, production efficiency, energy conservation, emission reduction and yield quality are continuously improved, and the UV screen printing ink enters the market of the traditional solvent printing ink and slowly replaces the products with high volatilization, high emission and low efficiency.
However, UV screen printing inks have met with challenges while advancing. Some of these relate to the lightness of the UV silver, usually represented by the L value.
The silver color of the screen printing is actually the effect of the processed aluminum powder in the ink. The aluminum powder with different particle sizes, different shapes and processing modes has a relation with the brightness, fineness and shielding rate of the silver color after printing and drying (curing). The solvent type silk-screen printing silver oil is slowly baked and dried (the process can be from tens of minutes to several hours) after being printed, so that the silver powder has certain freedom and activity space in the volatilization process of the solvent, the silver powder can be rearranged along with the drying and baking process to reach the arrangement state of the lowest energy interval, and meanwhile, the silver ink brightness is also improved because the rearrangement is a tight arrangement mode. If the silver powder used at this time is plated aluminum, plus some other auxiliary conditions, a specular silver state (highlight) may occur.
In the drying (curing) process of the UV screen printing ink, because no solvent is used, and the ink is instantly finished under the irradiation of UV or LED lamps (less than 1 second), the silver powder has no chance and no space to rearrange, so that the silver powder in the UV screen printing is in a disordered arrangement mode, and the requirements of fineness, shielding rate and brightness which can be met at the same time cannot be met. Taking silver powder with a particle size of about 11 to 13 μm as an example, when the amount of silver powder used is 15%, the L value of the UV silver ink currently on the market is at most about 78 when measured on the back side (frosted side) of printing of frosted PC (8B 35). The current printed products for customers require that the L value reaches 81, and also have the requirements on particle fineness and shielding rate. The finer the particles, the lower the brightness (L value). When the silver powder is added more, the shielding rate is high and the luminance (L value) is also increased, but when the silver powder is covered with a white base (if necessary), the silver powder is more likely to be peeled off (not easily cured by UV). So the UV silver ink needs to have a good balance for this product. Sometimes this requirement is not met by solvent-based silver inks. The customer also has the price of the product and the requirements of the customer's existing UV equipment (without having to specially purchase a high performance UV machine that is silver only UV ink).
In conclusion, the UV high-brightness silver ink has great difficulty and challenge, and the current UV screen printing ink on the market cannot meet the standard of such environment-friendly products.
Disclosure of Invention
The invention aims to provide a novel formula preparation, so that the silver color of screen-printed products after UV curing can reach or even exceed the brightness of 877 bright silver, thereby solving the difficulty that some products cannot be produced by using a whole set of UV printing ink at present.
A UV screen printing silver oil comprises gloss oil and silver paste; the gloss oil comprises resin, a monomer, an auxiliary agent and an initiator; the resin is a mixture of acrylic group-containing resin and acrylic group-free resin; the monomer is an acrylic group-containing monomer; the auxiliary agent comprises a stabilizer, a flatting agent, a defoaming agent, a pigment and color paste; the gloss oil is low in polarity, the relative dielectric constant is 2.7-3.2, the silver paste is high in polarity, and the relative dielectric constant is 16-20; the mass ratio of the acrylic group-containing resin to the acrylic group-free resin was 2: 1.
Further, the silver paste comprises aluminum powder with the particle size of 11-13 mu m, and the solid content is 50%.
Further, the gloss oil comprises 25-60% of resin, 10-30% of monomer, 5-40% of auxiliary agent and 3-10% of initiator.
Further, the mass ratio of the gloss oil to the silver paste is 7: 3.
Further, the acrylic group-containing resin is at least one of polyester acrylate and polyether acrylate.
Further, the resin without acrylic group is at least one of cellulose acetate butyrate and polyvinyl alcohol.
Further, the monomer is at least one of dodecyl acrylate and stearyl acrylate.
According to the invention, reasonable UV raw material components (monomer, oligomer and auxiliary agent) are selected to prepare the gloss oil with good matching performance with silver powder, then the appropriate UV silver paste is screened out, and the UV silver ink with price competitiveness capable of being produced in mass production is reasonably matched. The L value of the UV screen printing silver oil after being cured by the UV lamp reaches about 82, and the UV screen printing silver oil can meet the requirements of products through various tests.
According to the invention, UV gloss oil systems with different polarities are screened out and then compared with the polarities of UV silver paste, and the UV silver ink can reach higher brightness in a system with a larger polarity difference. In the prior art, when the polarities are different, the system is unstable, and the printing effect is poor. The silver powder can be arranged in the ink system by setting a certain polarity difference, the silver powder can be arranged in a relatively close range by setting the polarity difference, the silver powder with similar polarity can be arranged in the relatively close range by a scraper when the ink is printed on a screen printing plate and the scraper is not printed, and the interference of gloss oil with the polarity difference on the arrangement of the silver powder is less at the moment, so that a product with higher brightness than that of the common UV printing ink is obtained.
The invention is matched with the appropriate UV silver paste through an appropriate gloss oil system. If the polarities of the two systems are not very different, there is no effect. If the difference in polarity is too great, the ink system is unstable and cannot be used. Meanwhile, the low polarity in the gloss oil and the high polarity in the silver paste are matched, so that a better effect can be achieved.
The main components in UV screen printing varnish are acrylic group and other oligomers (resins) and acrylic group containing monomers.
The polarity of the UV varnish can be evaluated by the choice of resin and monomer. In fact, other groups, geometric arrangement and molecular weight attached to each resin affect the polarity of the resin, so that the derivative products of the resin are many, and the product catalog of Taiwan double bond company UV resin (oligomer) is more than 100. There are also over 40 monomers available for UV curing on the tianjin duran list of new materials. The range of raw materials to choose from is wide.
The polarity of the final varnish and silver paste depends on the choice of resin and monomer, the low polarity resin/monomer system and the high polarity silver paste system are the key to achieving high brightness silver, whether the resin has been modified, and the amount of each raw material. The requirements of the product can be met through repeated testing and selection.
The product of the invention is a product capable of being cured by UV, not only can achieve the performance of solvent type products, but also has the advantages of energy conservation, environmental protection, no emission, high efficiency, high yield and the like. Taking silver paste with the particle size of 11-13 μm as an example, the L value of the silver paste can be about 82, which exceeds the performance of the current solvent-based product. However, the L value of other similar UV screen printing ink products at present can only reach about 78, and the requirements of customers cannot be met.
Silver oil occupies a large amount of components in printing production, a plurality of products need to use silver series of printing ink, especially panel labels of electronic products and household appliance series, the color series of printing ink can be used for printing of each product basically, and because the color matching of the UV series of printing ink is not broken before, the production and printing can only be carried out by using the printing ink with solvent property, the production consumes a long time and the discharge of VOC is enlarged.
The color system ink can be printed by a whole set of UV ink for production, simultaneously meets the requirement of environmental protection, reduces the discharge of VOC by about 95 percent, eliminates the baking operation of an oven by printing the solvent ink in a factory and converting the printing of the UV ink, completes the on-line printing and drying at one time, does not need to be baked by an additional swinging frame, and shortens the production period.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Any modifications that can be easily made by a person skilled in the art to the present invention without departing from the technical solutions of the present invention will fall within the scope of the claims of the present invention.
Printing a base material: sabik drawing PC, 0.25cm
Printing temperature: 25 +/-2 DEG C
Printing a screen: 350 mesh
Printing a scraper: 80
UV curing conditions: mercury lamps, UVA 300mJ/cm2,500mW/cm2, measured using EIT PowerPuck II, USA. UV conveyor speed 28 m/min
A color difference meter: workshop: meinengda 2600D. A laboratory: color common CS-200.
Relative dielectric constant: the conditions were room temperature and the test frequency was 1 KHz. (refer to GB/T1409-2006).
The gloss oil comprises 40-60% of resin, 10-30% of monomer, 25% of auxiliary agent and 5% of initiator. Selecting resin: the number average molecular weight of the polyether acrylic resin is 5-10 ten thousand, the number average molecular weight of the polyvinyl alcohol is 2.2-7.48 ten thousand, and the ratio is 2: 1. the monomer is dodecyl acrylate. The auxiliary agent and the initiator are all commonly used choices in the field, and any one of the auxiliary agent and the initiator can be purchased. By adjusting the ratio of resin and monomer, the following three grades of gloss oil were prepared.
H52-1000: relative dielectric constant: 3.0
VST-OPVC: relative dielectric constant: 2.2
IMD-OPVC: relative dielectric constant: 4.0
The silver paste is prepared by selecting 11-micron aluminum powder and matching with solvents (n-butyl alcohol and acetone) to obtain the following three grades of silver pastes.
A9 is 50% aluminum powder, 11 μm, relative dielectric constant: 18
118: 50% aluminum powder, 11 μm, relative dielectric constant: 24
8833: 98% aluminum powder, 12 μm, relative dielectric constant: 14
Test example 1
| UV gloss oil/amount | UV silver paste/amount | L | a | b |
| H52-1000，70％ | A9，30％ | 83.33 | -1.31 | -8.01 |
Test example 2
The difference between the two polarities is too large, which results in unstable ink and poor printing effect
Test example 3
| UV gloss oil | UV silver paste/amount | L | a | b |
| H52-1000，85％ | 8833，15％ | 78.60 | -2.25 | -6.47 |
Test example 4
| UV gloss oil/amount | UV silver paste/amount | L | a | b |
| VST-OPVC，70％ | A9，30％ | 77.39 | -2.51 | -6.38 |
Test example 5
| UV gloss oil/amount | UV silver paste/amount | L | a | b |
| VST-OPVC，70％ | 118，30％ | 78 | -2.51 | -6.38 |
Test example 6
| UV gloss oil/amount | UV silver paste/amount | L | a | b |
| VST-OPVC，85％ | 8333，15％ | 76.08 | -2.85 | -6.30 |
Test example 7
| UV gloss oil/amount | UV silver paste/amount | L | a | b |
| IMD-OPVC，70％ | A9，30％ | 78.50 | -2.24 | -3.17 |
Test example 8
Test example 9
| UV gloss oil/amount | UV silver paste/amount | L | a | b |
| VST-OPVC，85％ | 8833，15％ | 77.60 | -2.6 | -3.08 |
The invention skillfully utilizes the polarity relation between the UV gloss oil and the UV silver paste/silver powder, does not make the whole ink system into the most stable state, but utilizes the instability allowed to exist between the polarities to provide a chance for arranging the silver powder in the UV silver paste at a bit, so that the produced product can reach the brightness (L value) of about 82 which is higher than the best brightness of the current UV silver paste by more than 4 units, and can meet the requirements of client products, thereby the environment-friendly, energy-saving and efficient UV screen printing ink can be matched for use in production to serve clients.
Claims (5)
1. A UV screen printing silver oil comprises gloss oil and silver paste; the gloss oil comprises resin, a monomer, an auxiliary agent and an initiator; the resin is a mixture of acrylic group-containing resin and acrylic group-free resin; the monomer is an acrylic group-containing monomer; the auxiliary agent comprises a stabilizer, a flatting agent, a defoaming agent, a pigment and color paste; the gloss oil is low in polarity, the relative dielectric constant is 2.7-3.2, the silver paste is high in polarity, and the relative dielectric constant is 16-20; the mass ratio of the acrylic group-containing resin to the acrylic group-free resin is 2: 1;
the silver paste comprises aluminum powder with the particle size of 11-13 mu m, and the solid content is 50%;
the gloss oil comprises 25-60% of resin, 10-30% of monomer, 5-40% of auxiliary agent and 3-10% of initiator.
2. The UV screen printing silver paste of claim 1, wherein the mass ratio of the gloss oil to the silver paste is 7: 3.
3. The UV screen printing silver oil according to claim 1, wherein the acrylic group-containing resin is at least one of polyester acrylate and polyether acrylate.
4. The UV screen printing silver oil of claim 1, wherein the resin free of acrylic groups is at least one of cellulose acetate butyrate and polyvinyl alcohol.
5. The UV screen printing silver oil of claim 1, wherein the monomer is at least one of lauryl acrylate and stearyl acrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010846295.XA CN112063225B (en) | 2020-08-21 | 2020-08-21 | UV screen printing silver oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010846295.XA CN112063225B (en) | 2020-08-21 | 2020-08-21 | UV screen printing silver oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112063225A CN112063225A (en) | 2020-12-11 |
| CN112063225B true CN112063225B (en) | 2022-08-23 |
Family
ID=73662426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010846295.XA Active CN112063225B (en) | 2020-08-21 | 2020-08-21 | UV screen printing silver oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112063225B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115785729A (en) * | 2022-10-27 | 2023-03-14 | 苏州市贝特利高分子材料股份有限公司 | Multipurpose UV-LED photocuring high-coverage screen printing ink and preparation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4020473B2 (en) * | 1997-07-25 | 2007-12-12 | 関西ペイント株式会社 | Metallic coating film forming method |
| CN1746235A (en) * | 2005-10-14 | 2006-03-15 | 中国乐凯胶片集团公司 | Ultraviolet aluminium-silver size coating with light curing |
| US8851649B2 (en) * | 2011-05-13 | 2014-10-07 | Eckart Gmbh | UV ink jet printing ink composition |
| CN104403407B (en) * | 2014-12-09 | 2016-05-25 | 武汉虹之彩包装印刷有限公司 | The Yin Mo that a kind of type metal is effective and use the typography of this ink |
| CN106752785B (en) * | 2017-01-17 | 2019-05-17 | 长沙松润新材料有限公司 | Aqueous UV silver powder coating and preparation method thereof |
| CN107177236A (en) * | 2017-07-04 | 2017-09-19 | 苏州中亚油墨有限公司 | The special alcohol of OPP is molten easily to scrape silver-colored ink |
-
2020
- 2020-08-21 CN CN202010846295.XA patent/CN112063225B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112063225A (en) | 2020-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112063225B (en) | UV screen printing silver oil | |
| CN110834482B (en) | Method for conducting screen printing and frosting on surface of metal base material | |
| CN107141880B (en) | LED (light-emitting diode) curing UV (ultraviolet) offset printing ink as well as preparation method and application thereof | |
| CN103694758B (en) | A kind of biological environmental production pigment for artistic design | |
| CN102321407A (en) | Electron beam cured tin printing ink | |
| CN111117347A (en) | Rapid printing etching-resistant ink | |
| CN109233541A (en) | A kind of aqueous steel drum chromatography baking vanish and preparation method and spraying method | |
| CN108912816A (en) | A kind of cured water transfer ink of LED | |
| CN111138962A (en) | Special PU matte top-coat paint for dyed veneers and preparation method thereof | |
| CN103555189A (en) | Healthy and environment-friendly dual-component wear-resisting floor paint and preparation method thereof | |
| CN112646412A (en) | Cylinder printing white ink and preparation method thereof | |
| CN109177552A (en) | A kind of screen printing method of plastic rubber substrate | |
| CN108913012A (en) | Ultraviolet light solidifies high resistant matt floor paint and preparation method thereof | |
| CN112053796A (en) | Silver sulfide resistant electrode paste and preparation method thereof | |
| CN102719144A (en) | Ultra violet (UV) silk screen printing ink | |
| CN107216748A (en) | A kind of aqueous emulation copper coating and preparation method thereof | |
| CN103756408A (en) | High-adhesion ink composition for metal printing plate | |
| CN112680051A (en) | High-brightness high-weather-resistance varnish for spraying automobile bumper and preparation method thereof | |
| CN115926602B (en) | Polyurethane coating with high solid content and high metal texture and preparation method thereof | |
| CN112047631A (en) | Lead-free low-temperature sintering encapsulation glass slurry and preparation method thereof | |
| CN108976902A (en) | A kind of LED lamp source solidification color inhibition UV silk-screen glazing ink | |
| CN113571231B (en) | Black conductive silver paste prepared based on printed metal grid conductive film | |
| CN109111773A (en) | A kind of silkwood furniture water paint | |
| CN103602108A (en) | Nitrolacquer and preparation method thereof | |
| CN107812935B (en) | Environment-friendly strip-shaped bronze powder and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |