CN1900189A - Process for preparing low temperature baking silver mirror back lacquer - Google Patents
Process for preparing low temperature baking silver mirror back lacquer Download PDFInfo
- Publication number
- CN1900189A CN1900189A CN 200610028647 CN200610028647A CN1900189A CN 1900189 A CN1900189 A CN 1900189A CN 200610028647 CN200610028647 CN 200610028647 CN 200610028647 A CN200610028647 A CN 200610028647A CN 1900189 A CN1900189 A CN 1900189A
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- mirror back
- silver mirror
- low temperature
- temperature baking
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Abstract
The lower temperature baked silver mirror back lacquer consists of priming lacquer and finishing paint. The priming lacquer consists of inorganic cross-linking agent, talc powder, barium sulfate, modified alkyd resin, coloring pigment, antiskimming agent, drying agent, and organic solvent in certain weight proportion. The finishing paint consists of inorganic cross-linking agent, talc powder, barium sulfate, modified alkyd resin, coloring pigment, antiskimming agent, drying agent, leveling agent and organic solvent in certain weight proportion. The present invention has silver mirror back lacquer with baking temperature lowered to 100 deg.c, raised adhesion, high wet head resistance, high temperature change tolerance, high salt fog resistance, high salt water resistance, high corrosion resistance and good post finishing property.
Description
Technical field;
The present invention relates to a kind of preparation method's of paint, particularly a kind of low temperature baking silver mirror back lacquer preparation method.
Background technology:
The production method of glass silver is to plate layer of metal silver as the reflecting layer at glass surface with the method for silver mirror chemical reaction earlier, and then plates layer of metal copper with the method for bronze mirror chemical reaction, to increase the reflecting effect and the provide protection of silverskin.Because the metal level of glass is easily by atmospheric corrosion, and the environment for use big and strong place of corrodibility in high humidity, the temperature difference mostly again, metal level is corroded tarnishes to cause the optical property forfeiture.For making the glass silver metal level not be subjected to chemical corrosion and physical damnification, also need primer coating and finish paint to protect metal level on the glass silver metal level.
The glass silver mirror back lacquer is as CN1122127A disclosed " coating of glass ", its composition comprises Synolac, aminoresin and silicone resin, though this mirror back lacquer has advantages such as good dryness, acidproof, alkali resistance and hardness is good, but the paint film that forms does not have moderate snappiness and anti-humid, so glass silver in use for some time, coming off can appear in mirror back lacquer, and especially the cutting part at glass silver can turn black, and the optical property of glass silver is descended.
The glass silver mirror back lacquer is as CN1371409A disclosed " based on the highly filled coating of the quick-drying of modified alkyd resin ", it is the composition of a kind of acrylic acid modified alkyd resin ambient cure, because of its coating crosslinked complete inadequately, chemical substance is easily infiltrated, and influences the weather resistance in glass silver reflecting layer.
The glass silver mirror back lacquer is as CN1621430 disclosed " mirror back metal plating protective cover modified dry oil alkyd resin and curtain showering material thereof "; it is a kind of drying oil-modified alkyd resin modification acrylic acid modified epoxy again again; linking agent adopts a large amount of pure etherificate melamine resin or urea-formaldehyde resin; though this mirror back lacquer has processibility preferably; humidity resistance etc. preferably; but this mirror back lacquer has adopted a large amount of pure etherificate melamine resin or urea-formaldehyde resin to make linking agent; therefore this mirror back lacquer storing temperature is greater than 150 ℃; the storing temperature height makes silver mirror glass burst apart on streamline easily; and initial hardness was low when this mirror back lacquer rolled off the production line, and the salt fog resistance erosion resistance is relatively poor.
In sum, the performance of glass silver mirror back lacquer all exists some defectives at present, especially on existing glass silver production line, be subjected to the influence of factors such as glass temperature, drying time and glass run speed, guarantee the quality of production of glass silver and the useful life longevity that guarantees glass silver, difficulty more just seems.
Summary of the invention:
The objective of the invention is to reduce the storing temperature to 100 ℃ of glass silver mirror back lacquer, and improve sticking power, humidity resistance, temperature-change resistance, salt fog resistance, resistance to salt water, the erosion resistance of glass silver mirror back lacquer and application property and the post-production that improves the glass silver mirror back lacquer.
A kind of low temperature baking silver mirror back lacquer of the present invention is made up of priming paint and finish paint, and the concrete preparation method of priming paint and finish paint is as follows:
(1) preparation of priming paint: with inorganic crosslinking agent, talcum powder, barium sulfate, modified alkyd resin, tinting pigment, organic solvent stirs with agitator in the stainless steel cylinder,, to fineness 30 μ, pour in the stainless steel cylinder through the sand mill sand milling, add anti more successively, siccative, mix to filter and package and form, inorganic crosslinking agent 2.0～7.0wt% wherein, talcum powder 13.7～20.0wt%, barium sulfate 25.0～35.5wt%, modified alkyd resin 12.0～15.5wt%, tinting pigment 3.0～4.0wt%, anti 0.05～0.1wt%, siccative 0.03～0.2wt%, surplus is an organic solvent;
(2) preparation of finish paint: with inorganic crosslinking agent, talcum powder, barium sulfate, modified alkyd resin, tinting pigment, organic solvent stirs with high speed agitator in the stainless steel cylinder,, pours in the stainless steel cylinder to fineness 30 μ through the sand mill sand milling, the anti that adds successively again, siccative, flow agent mix to filter and package and form, wherein inorganic crosslinking agent 2.0～7.0wt%, talcum powder 9.0～13.0wt%, barium sulfate 16.0～28.0wt%, modified alkyd resin 19.0～22.5wt%, tinting pigment 3.5～10.0wt%, anti 0.05～0.1wt%, siccative 0.03～0.2wt%, flow agent 0.1～3.5wt%, surplus is an organic solvent.
The inorganic crosslinking agent that the present invention uses is the mixture of zinc oxide and plumbous oxide, and its weight ratio is 1～20.
The talcous granularity that the present invention uses is 800～1250 orders.
The barium sulfate that the present invention uses is ground barium sulfate or process white, and its granularity is 800～1250 orders.
The modified alkyd resin that the present invention uses is paulownia linolic acid modified phenolic resins, and acid value is 100% solid, 10.0～50.0KOHmg/g.
The tinting pigment that the present invention uses is iron oxide red, cologne earth, iron oxide black, iron oxide yellow, titanium dioxide, carbon black, one of painted pigment such as phthalocyanine blue or their mixture.
The organic solvent that the present invention uses is 142～200 ℃ of aromatic solvents as boiling range.
The anti that the present invention uses is methyl ethyl ketoxime or butyraldehyde oxime.
The siccative that the present invention uses is cobalt iso-octoate or cobalt naphthenate.
The flow agent that the present invention uses is the high imino-aminoresin of part butyl etherization.
The low temperature baking silver mirror back lacquer of the present invention's preparation, because inorganic crosslinking agent plays a part acid acceptor, low with the reaction activity of carboxyl in the paulownia linolic acid resol, therefore can make the storing temperature of glass silver mirror back lacquer of the present invention be reduced to 100 ℃, and storing time is short, and improved hardness of film, erosion resistance, temperature-change resistance, salt fog resistance, resistance to salt water, humidity resistance and post-production; Make flow agent with the high imino-aminoresin of part butyl etherization, the smooth bubble that do not produce of coating has improved workability during the streamline showering.
Embodiment:
1, embodiment 1-embodiment 4
(1) preparation of priming paint:
According to the described prescription of table 1 with talcum powder, barium sulfate, zinc oxide, plumbous oxide, iron oxide red, modified alkyd resin, solvent stirs in the stainless steel cylinder by the described weight percent of table 1, advance the sand mill sand milling to fineness less than 30 μ, the anti that adds the described weight percent of table 1 again, siccative stirs, through being up to the standards, filtering, measure, pack.
Table 1 (various starting material by weight percentage in the table)
| Starting material | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Paulownia linolic acid resol acid value is 100% solid 20KOHmg/g | 13.0 | 15.0 | 13.5 | 15.0 |
| Zinc oxide | 6.0 | 2.5 | 6.0 | 2.2 |
| Plumbous oxide | 1.0 | 1.0 | 1.0 | 0.9 |
| 800 order talcum powder | 20.0 | 16.0 | ||
| 1250 order talcum powder | 13.7 | 15.0 | ||
| 800 order process whites | 30.0 | 28.7 | 28.0 | |
| 1250 order ground barium sulfates | 25.5 | |||
| Iron oxide red | 3.5 | 3.0 | 3.2 | 4.0 |
| Methyl ethyl ketoxime | 0.08 | 0.1 | ||
| Butyraldehyde oxime | 0.1 | 0.05 |
| Organic solvent (S-100) | 32.67 | 32.87 | 32.3 | 33.75 |
| Cobalt iso-octoate | 0.03 | |||
| Cobalt naphthenate | 0.05 | 0.2 | 0.1 |
(2) preparation of finish paint:
According to the described prescription of table 2 with talcum powder, barium sulfate, zinc oxide, plumbous oxide, cologne earth, iron oxide black, titanium dioxide, modified alkyd resin, organic solvent stirs in the stainless steel cylinder by the described weight percent of table 2, advance the sand mill sand milling to fineness less than 30 μ, the anti that adds the described weight percent of table 2 again, siccative, flow agent stirs, through being up to the standards, filtering, measure, pack.
Table 2 (various starting material by weight percentage in the table)
| Starting material | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Paulownia linolic acid resol acid value is 100% solid 20KOHmg/g | 19.0 | 22.1 | 21.2 | 20.5 |
| Zinc oxide | 5.3 | 2.5 | 6.5 | 6.1 |
| Plumbous oxide | 1.7 | 1.7 | 0.5 | 0.9 |
| 800 order talcum powder | 13.0 | 10.0 | ||
| 1250 order talcum powder | 10.0 | 10.0 | ||
| 800 order process whites | 22.9 | 23.3 | ||
| 1250 order ground barium sulfates | 19.1 | 21.0 | ||
| Cologne earth | 5.0 | 5.0 | ||
| Titanium dioxide | 3.0 | 3.5 | ||
| Iron black | 2.0 | 1.5 | ||
| Methyl ethyl ketoxime | 0.1 | 0.08 | ||
| Butyraldehyde oxime | 0.1 | 0.05 | ||
| Organic solvent (S-100) | 34.95 | 34.05 | 33.02 | 32.85 |
| Cobalt iso-octoate | 0.05 | 0.05 | ||
| Cobalt naphthenate | 0.1 | 0.1 | ||
| The high imino-aminoresin of part butyl etherization | 1.0 | 2.4 | 0.3 | 3.5 |
(3) low temperature baking silver mirror back lacquer characterization processes and index
With the priming paint of each embodiment in the above-mentioned table 1 with dimethylbenzene 10～20wt% be diluted to working viscosity and be coated with-4 glasss 24～30 seconds, join then in the glass silver production line priming paint showering groove, the width of regulating the showering cutter makes build reach specified requirement, earlier to glass silver metal plating showering priming paint, through 100 ℃ of bakings 3 minutes; Again with the finish paint of each embodiment in the above-mentioned table 2 with dimethylbenzene 20～30wt% be diluted to working viscosity and be coated with-4 glasss 24～30 seconds, join then in the glass silver production line finish paint showering groove, the width of regulating the showering cutter makes build reach specified requirement, showering finish paint on glass silver priming paint, through 100 ℃ of bakings 5 minutes, production line packing under the glass silver.After testing, paint film reaches table 3 performance:
Table 3 glass silver mirror back lacquer detects index
| Test item, mirror back lacquer (priming paint+finish paint) | The coating index |
| Pencil hardness, Mitsubishi's pencil, cut | 3H |
| Anti-FeCl 3Test, 5%FeCl 3The aqueous solution, 60 ℃, 6h | The paint film no change, the reflecting layer no change |
| The temp. variation resistant test, 80 ± 2 ℃, 4h; Room temperature, 1h;-30 ± 3 ℃, 4h circulates 4 times | The paint film no change, the reflecting layer no change |
| Cutting comes off and edging comes off, mm ,≤ | 0.1 |
| Hot resistance test, 60 ℃ of water or saturated vapor 8h, room temperature 16h circulates 10 times | The paint film no change, the reflecting layer does not have corrosion |
| Salt-fog resistant test, 50g/L NaCl solution, pH=6.5～7.2,35 ℃, 480h | The paint film no change, the reflecting layer does not have corrosion |
| Salt water resistant test, 3% sodium chloride aqueous solution, 240h | The paint film no change, the reflecting layer does not have corrosion |
| The CASS test, 50g/L NaCl, 0.26g/L CuCl 2Mixed solution, pH=3.1～3.3,50 ℃, 120h | The paint film no change, the reflecting layer no change |
| Anti-H 2The S test, gas volume compares 5%H 2S，240h | The paint film no change, the reflecting layer no change |
| The test of close outstanding property, cross-hatching, 100/100 | Back of the body lacquer nothing is peeled off |
Claims (10)
1, a kind of low temperature baking silver mirror back lacquer is made up of priming paint and finish paint, it is characterized in that the preparation method of priming paint and finish paint is as follows:
(1) preparation of priming paint: with inorganic crosslinking agent, talcum powder, barium sulfate, modified alkyd resin, tinting pigment, organic solvent stirs with agitator in the stainless steel cylinder,, to fineness 30 μ, pour in the stainless steel cylinder through the sand mill sand milling, add anti more successively, siccative, mix to filter and package and form, inorganic crosslinking agent 2.0～7.0wt% wherein, talcum powder 13.7～20.0wt%, barium sulfate 25.0～35.5wt%, modified alkyd resin 12.0～15.5wt%, tinting pigment 3.0～4.0wt%, anti 0.05～0.1wt%, siccative 0.03～0.2wt%, surplus is an organic solvent;
(2) preparation of finish paint: with inorganic crosslinking agent, talcum powder, barium sulfate, modified alkyd resin, tinting pigment, organic solvent stirs with high speed agitator in the stainless steel cylinder,, pours in the stainless steel cylinder to fineness 30 μ through the sand mill sand milling, add anti more successively, siccative, flow agent mix to filter and package and form, wherein inorganic crosslinking agent 2.0～7.0wt%, talcum powder 9.0～13.0wt%, barium sulfate 16.0～28.0wt%, modified alkyd resin 19.0～22.5wt%, tinting pigment 3.5～10.0wt%, anti 0.05～0.1wt%, siccative 0.03～0.2wt%, flow agent 0.1～3.5wt%, surplus is an organic solvent.
2, the preparation method of a kind of low temperature baking silver mirror back lacquer according to claim 1 is characterized in that inorganic crosslinking agent is the mixture of zinc oxide and plumbous oxide, and its weight ratio is 1～20.
3, the preparation method of a kind of low temperature baking silver mirror back lacquer according to claim 1 is characterized in that talcous granularity is 800～1250 order talcum powder.
4, the preparation method of a kind of low temperature baking silver mirror back lacquer according to claim 1, the granularity that it is characterized in that barium sulfate are 800～1250 order ground barium sulfate or process whites.
5, the preparation method of a kind of low temperature baking silver mirror back lacquer according to claim 1 is characterized in that modified alkyd resin is a paulownia linolic acid modified phenolic resins, and acid value is 100% solid, 10.0～50.0KOHmg/g.
6, the preparation method of a kind of low temperature baking silver mirror back lacquer according to claim 1 is characterized in that tinting pigment is an iron oxide red, cologne earth, iron oxide black, iron oxide yellow, titanium dioxide, phthalocyanine basket or their mixture.
7, the preparation method of a kind of low temperature baking silver mirror back lacquer according to claim 1, the boiling range that it is characterized in that organic solvent is 142～200 ℃ of aromatic solvents.
8, the preparation method of a kind of low temperature baking silver mirror back lacquer according to claim 1 is characterized in that anti is methyl ethyl ketoxime or butyraldehyde oxime.
9, the preparation method of a kind of low-temperature bake glass silver coating according to claim 1 is characterized in that siccative is cobalt iso-octoate or cobalt naphthenate.
10, the preparation method of a kind of low temperature baking silver mirror back lacquer according to claim 1 is characterized in that flow agent is the high imino-aminoresin of part butyl etherization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610028647 CN1900189A (en) | 2006-07-06 | 2006-07-06 | Process for preparing low temperature baking silver mirror back lacquer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610028647 CN1900189A (en) | 2006-07-06 | 2006-07-06 | Process for preparing low temperature baking silver mirror back lacquer |
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| CN1900189A true CN1900189A (en) | 2007-01-24 |
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| CN 200610028647 Pending CN1900189A (en) | 2006-07-06 | 2006-07-06 | Process for preparing low temperature baking silver mirror back lacquer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735717B (en) * | 2010-01-18 | 2012-05-23 | 天津市新丽华色材有限责任公司 | Waterborne ultra-fast dry mirror-back protective coating |
| CN104151987A (en) * | 2013-05-13 | 2014-11-19 | 山东奔腾漆业股份有限公司 | Mirror back paint resin and preparation method thereof |
| CN104371515A (en) * | 2014-10-23 | 2015-02-25 | 安徽省实防新型玻璃科技有限公司 | Waterborne coating used for glass door and having wear-resistant and sound-insulation functions and preparation method of waterborne coating |
| CN109233386A (en) * | 2018-07-20 | 2019-01-18 | 宁波柯乐芙家居科技股份有限公司 | A kind of spraying method of environmental protection door-plate |
-
2006
- 2006-07-06 CN CN 200610028647 patent/CN1900189A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735717B (en) * | 2010-01-18 | 2012-05-23 | 天津市新丽华色材有限责任公司 | Waterborne ultra-fast dry mirror-back protective coating |
| CN104151987A (en) * | 2013-05-13 | 2014-11-19 | 山东奔腾漆业股份有限公司 | Mirror back paint resin and preparation method thereof |
| CN104151987B (en) * | 2013-05-13 | 2016-08-10 | 山东奔腾漆业股份有限公司 | A kind of mirror back lacquer resin and preparation method thereof |
| CN104371515A (en) * | 2014-10-23 | 2015-02-25 | 安徽省实防新型玻璃科技有限公司 | Waterborne coating used for glass door and having wear-resistant and sound-insulation functions and preparation method of waterborne coating |
| CN109233386A (en) * | 2018-07-20 | 2019-01-18 | 宁波柯乐芙家居科技股份有限公司 | A kind of spraying method of environmental protection door-plate |
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