CN1050396A - Non-glare coating compostion and make the method for color cathode ray tube with it - Google Patents
Non-glare coating compostion and make the method for color cathode ray tube with it Download PDFInfo
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- CN1050396A CN1050396A CN90106617A CN90106617A CN1050396A CN 1050396 A CN1050396 A CN 1050396A CN 90106617 A CN90106617 A CN 90106617A CN 90106617 A CN90106617 A CN 90106617A CN 1050396 A CN1050396 A CN 1050396A
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Abstract
Disclose a kind of anti-dazzle coating compostion and made the method for color cathode ray tube with this synthetics.Coating compostion is produced like this: add the hybrid silicon acid esters in the solution that contains alcoholic solvent or polar solvent, acid catalyst and water, then in addition hydrolysis and polycondensation.This method comprises the following steps: the outside surface with conductive solution coating panel, to form conductive film; With described coating compostion coating electrically conductive film, to form the protective membrane of conductive film; Cure conductive film and protective membrane simultaneously, thereby form an individual layer.According to the present invention, the reflex of ambient light has reduced, and the contrast gradient and the work capacity of cathode tube have improved.
Description
The present invention relates to a kind of for applying the non-glare coating compostion that the colour cathode ray tube front surface is used, with the method for making color cathode ray tube with this coating compostion, the antistatic property of wherein said synthetics increases, not dazzling under the ambient light effect, and adhesive capacity increases.
The glass of normally transparent degree excellence or plastics are widely used as the material of display device such as cathode tube, chromoscope and liquid-crystal display.But glass or plastics itself are insulating material, thereby the easy static electricity gathered lotus of the display surface of cathode tube.This static charge inhales dust to display surface, the brightness and contrast of cathode tube is degenerated, and reduce its sharpness.If the outside surface that uses the people of device to touch cathode tube in addition also can be shocked by electricity.In addition, the front panel that this class material is made, its outside surface contains glossy material, thereby the light around the strong reflection.Like this, TV will watch the image that is presented on the panel inner surface to have any problem to the crowd.
For addressing these problems, various scattering of light around making has been proposed so far to reduce the method for catoptrical brightness and sharpness.
For example, it is with the glass surface of the hydrogen fluoride local corrosion face-plate of a cathode-ray tube that a kind of chemical method is arranged, and forms slight unfairness thereon.But this method tends to cause pollution problem, and damages panel, and has the not problem of reproducible when processing is bad.Forming irregular sand-blast with abrasive material at panel surface has such problem, i.e. quality instability, and replicability is poor, can mix the foreign matter that resembles abrasive material etc.The lining method that plastics film is overlayed on the panel tends to injure panel surface, but also can the elution organic solvent.
For addressing the above problem, the someone has adopted non-glare coating compostion has been coated to coating method on the panel.
For example Japanese Utility Model 50-26277 communique was just introduced with the method with slight irregular film lining cathode tube.To have the silicon compound of 4 functional groups and alcohols or ester class and be mixed into mixture, this mixture be sprayed on the surface of this face-plate of a cathode-ray tube.According to described method, can obtain the surface of good layer, but ridity is bad, and overlay often flows after the spraying, formed roughness is poor.
Japanese patent gazette 61-118932 has introduced a kind of cathode tube with antistatic property.In this cathode tube, Si(OR is gone up in the spraying of face-plate of a cathode-ray tube surface)
4(wherein R is an alkyl) cures under 80 ℃ to 150 ℃ temperature then, thus make the Si-O-Si siloxane structure some silanol groups (=Si-OH) stay, thereby make described panel surface have antistatic property.The upper layer that so draws, the intensity height, but can reduce with heating condition.Can not obtain anlistatig effect in addition.
Disclose at SiO among the Japanese patent gazette 61-118946
2Film surface forms the upper layer of siliceous alcohol radical, forms the method for conductive surface layer thus.But this method is similar with Japanese patent gazette 61-118932 basically, and has the problem that antistatic effect descends in time.
In addition, United States Patent (USP) 4,563 has been introduced a kind of cathode tube with the anti-dazzle coating of antistatic silicon ester in 612.
The surface irregularity of coating, this makes it have not dazzling performance.Employing be selected from by a following group element (Pt, Pd, Sn and Au) wherein the metallic compound of at least a element improve under the situation of electric conductivity of silicon ester material conductive layer weakness, and be easy to damage.
Here, in order to prevent this damage, cathode tube is that the antistatic layer of being made by silicon ester material and inorganic metal compound with bilayer structure is produced, but this cathode tube high price, the manufacturing process complexity, and a little less than the adhesive power between silicon ester material and the inorganic metal compound layer.
Therefore an object of the present invention is to provide a kind of antistatic effect increase, not dazzling, adhesive power is strengthened and at the excellent coating compostion of the transparency of face-plate of a cathode-ray tube surface upper body color and luster.
Another object of the present invention provides a kind of manufacture method of cathode tube, is formed with the anti-dazzle antistatic film that adhesive power increases on the outside surface of this face-plate of a cathode-ray tube.
For achieving the above object, anti-dazzle synthetics of the present invention is produced like this: add the hybrid silicon acid esters in the solution that contains alcoholic solvent or polar solvent, acid catalyst and water, be hydrolyzed then, carry out polycondensation again.
In addition, the present invention's method of making cathode tube comprises following operation:
Panel outer surface is coated with to contain the solution of electro-conductive material, with the solution oven dry, to form conductive film;
Described conductive film is coated with above-mentioned non-glare coating compostion, so that form protective film;
Cure described conductive film and protective film simultaneously, form an individual layer thus.
Anti-dazzle synthetics of the present invention prepares as follows:
Mix tetraethyl silicate monomer and ethyl polysilicate tetramer by 80: 20 to 20: 80 volume ratios, the hybrid silicon acid esters of preparation 1 to 20% weight.
In the hybrid silicon acid esters, add the alcohols (for example methyl alcohol, ethanol, Virahol and butanols) or the polar solvent (for example vinyl acetic monomer, methyl ethyl ketone) of 55 to 95% weight, and stir it.
The water that adds 3 to 20% weight toward the mixture that so draws is hydrolyzed, and polycondensation is carried out in the acid (for example hydrochloric acid or nitric acid) that adds 1 to 3% weight again.So just drawn desired synthetics.
But when the ratio of tetraethyl silicate monomer and ethyl polysilicate tetramer is 100-80: 0-20 or 0-20: during 100-80, the film strength of panel surface descends, and the film color become, and therefore the synthetics that is drawn is imappropriate as anti-dazzle synthetics.
According to the present invention, added acid or alkali and water with the alcohols that promotes hydrolytic action or resemble vinyl acetic monomer and the polar solvent of methyl ethyl ketone etc. as main component.
Secondly, with be selected from the group element formed by tin, antimony, indium and palladium at least a element as electro-conductive material add entry and resemble hydrochloric acid or the acid of nitric acid and so in, mix it, the mixture that will so draw is coated on panel 1 outside surface then, to form conductive film 2, as shown in fig. 1.With the panel surface at room temperature dry 1 hour that scribbles described electro-conductive material or be lower than under about 100 ℃ temperature dry 10 minutes, this drying is carried out for conductive film is not flowed.
Then; as shown in fig. 1; described synthetics is coated on the described conductive film 2; so that form protective film 3 thereon; in 100 to 200 ℃ temperature range, cured 10 minutes to 2 hours simultaneously at conductive film 2 that forms on panel 1 outside surface and protective membrane 3 described again, thereby make these two films form an individual layer.
The available spraying method of the coating that the present invention carries out on face-plate of a cathode-ray tube surface, distribution method or pickling process are carried out.These methods can both obtain uniform coating.
Fig. 1 is the sectional view that adopts the face-plate of a cathode-ray tube surface that coating compostion of the present invention makes.
Describe preferred example more of the present invention now in detail.
Example 1
Volumetric mixture ratio mixing tetraethyl silicate monomer and ethyl polysilicate tetramer by 80: 20 to 20: 80, produce the hybrid silicon acid esters, the hybrid silicon acid esters of 5% weight, water and a spot of nitric acid of 10% weight are added in the Virahol of 85% weight, with they thorough mixing, to produce coating compound of the present invention.
The coating compostion that will so draw with spraying method is coated on the outside surface of the face-plate of a cathode-ray tube, then described coated surface was cured under 150 ℃ temperature 30 minutes, thereby formation film mean thickness is 1 micron a anti-dazzle film.By the intensity of experimental test film, when applying the pressure of 1 kg/cm with the rubber friction film on film, the film slabbing peels off.Film adds the intensity that tetraethyl silicate monomer, ethyl polysilicate tetramer and hybrid silicon acid esters form respectively, and after tested, its result is as shown in table 1, and its film color and luster is then as shown in table 2.
Table 1
| The tetraethyl silicate monomer | The ethyl polysilicate tetramer | The hybrid silicon acid esters | Remarks | |
| Film strength test (the rubber rub(bing)test of 1 kg/cm) | Rub 100 times the time, the film slabbing peels off | Rub 300 times the time, the film slabbing peels off | 250 the film slabbings that rub peel off | Stoving temperature: 150 ℃ are cured the time: 30 minutes film mean thicknesss: 1 micron |
Table 2
| Tetraethyl silicate unit | The ethyl polysilicate tetramer | Hybrid estersil ester | Remarks | |
| Color and luster | Transparent | Opaque | Transparent | Naked eyes are measured.Treatment condition and table 1 are together. |
Example 2
With the alkoxyl silicone of 5% weight, the tin of 5% weight, the water of 10% weight and the vinyl acetic monomer that a spot of nitric acid is added to 80% weight, with their thorough mixing to produce conductive mixture.The conductive mixture that so draws is sprayed to the outside surface of the face-plate of a cathode-ray tube, again this coated surface was cured under 90 ℃ temperature 10 minutes.Carrying out drying is for the conductive film by above-mentioned formation is not flowed.Then, the synthetics that example 1 is drawn is coated on the described conductive film, to form the protective membrane of conductive film, then described conductive film and described protective membrane is cured 30 minutes to form an individual layer simultaneously under 170 ℃ temperature.
The surface resistivity of cathode tube conductive film is 1 * 10
7To 1 * 10
11Europe, its static then decay to " 0 volt " in 10 seconds after cathode tube is cut off the electricity supply, therefore show that antistatic effect improves greatly.
The protective membrane that forms on this outer conductive film, its pencil intensity is 9H, and the rubber rub(bing)test is 300 times, and it is water-fast and alcohol resistance can increase.By conductive film and protective membrane are formed an individual layer, prevented the peeling phenomenon of slabbing, also improved adhesion strength.
As mentioned above, coating compostion of the present invention and cathode tube have following advantage: the possibility of electrostatic shock has reduced, the corona discharge phenomenon reduces to minimum degree, this is because static can conduct by conductive film, and the anti-electrostatic effect resembles dust and so on because of disappearing panel surface attached foreign matter is improved; The reflex of ambient light has reduced in addition, and the contrast gradient and the work capacity of cathode tube have also improved, and this is because can produce the anti-dazzle fluorescent layer of adhesion of film power and hyalosome color and luster excellence now easily and stably.
Coating compostion of the present invention in addition and cathode tube, its transparency, weather resistance and stability are all excellent, thereby they are durable in use.
Claims (8)
1, a kind of non-glare coating compostion is characterized in that, it is produced like this: add the hybrid silicon acid esters in the solution that contains alcoholic solvent or polar solvent, acid catalyst and water, be hydrolyzed then and polycondensation.
2, synthetics as claimed in claim 1 is characterized in that, described hybrid silicon acid esters is made of tetraethyl silicate monomer and ethyl polysilicate tetramer.
3, synthetics as claimed in claim 2 is characterized in that, the volume ratio of described tetraethyl silicate monomer and described ethyl polysilicate tetramer is 20: 80 to 80: 20.
4, solution as claimed in claim 1, it is characterized in that, if described synthetics is 100% weight, the amount of then described alcoholic solvent or polar solvent is 55 to 95% weight, the amount of described hybrid silicon acid esters is 1 to 20% weight, the amount of described acid catalyst is 1 to 3% weight, and the amount of described water is 3 to 20% weight.
5, make a kind of method of cathode tube, it is characterized in that this method comprises the following steps:
Outside surface with the solution coating panel that contains electro-conductive material carries out drying with solution, makes it form conductive film;
Each described non-glare coating compostion in the claim 1 to 4 is coated on the described conductive film, to form the protective membrane of described conductive film; With
Cure described conductive film and described protective membrane simultaneously.
6, method as claimed in claim 5 is characterized in that, described electro-conductive material is at least a element that is selected from the element set of being made up of tin, antimony, indium and palladium.
7, method as claimed in claim 5 is characterized in that, the drying process that forms conductive film is at room temperature to carry out 1 hour, or carries out 10 minutes being lower than under about 100 ℃ of temperature.
8, method as claimed in claim 5 is characterized in that, the operation of curing of described formation individual layer is to carry out under 100 to 200 ℃ temperature 10 minutes to 2 hours.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR13543/1989 | 1989-09-20 | ||
| KR1019890013543A KR920001837B1 (en) | 1989-09-20 | 1989-09-20 | Materials for nonglaring of braun tube |
| KR13543/89 | 1989-09-20 | ||
| KR15996/1989 | 1989-11-04 | ||
| KR15996/89 | 1989-11-04 | ||
| KR1019890015996A KR920001838B1 (en) | 1989-11-04 | 1989-11-04 | Manufacturing method of cathode ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1050396A true CN1050396A (en) | 1991-04-03 |
| CN1056639C CN1056639C (en) | 2000-09-20 |
Family
ID=26628089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90106617A Expired - Fee Related CN1056639C (en) | 1989-09-20 | 1990-07-30 | Non-glare coating compostion and method for manufacturing color cathode ray tube using same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1056639C (en) |
| MY (1) | MY111868A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1930258B (en) * | 2004-03-09 | 2011-08-03 | 三菱丽阳株式会社 | Active energy ray-curable coating composition and method for forming protective coating film |
| CN105417966A (en) * | 2015-11-09 | 2016-03-23 | 深圳市华宇彩晶科技有限公司 | Multilayer charging film coating preparation method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4596745A (en) * | 1984-05-04 | 1986-06-24 | Cotek Company | Non-glare coating |
| US4830879A (en) * | 1986-09-25 | 1989-05-16 | Battelle Memorial Institute | Broadband antireflective coating composition and method |
| EP0301104B1 (en) * | 1987-02-10 | 1996-10-16 | Catalysts & Chemicals Industries Co., Ltd. | Coating fluid for forming electroconductive coat |
-
1990
- 1990-07-25 MY MYPI90001238A patent/MY111868A/en unknown
- 1990-07-30 CN CN90106617A patent/CN1056639C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1930258B (en) * | 2004-03-09 | 2011-08-03 | 三菱丽阳株式会社 | Active energy ray-curable coating composition and method for forming protective coating film |
| CN105417966A (en) * | 2015-11-09 | 2016-03-23 | 深圳市华宇彩晶科技有限公司 | Multilayer charging film coating preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| MY111868A (en) | 2001-02-28 |
| CN1056639C (en) | 2000-09-20 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20000920 Termination date: 20090831 |