CN1062364C - Luminescent sign plate and its mfg. method - Google Patents
Luminescent sign plate and its mfg. method Download PDFInfo
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- CN1062364C CN1062364C CN 94110390 CN94110390A CN1062364C CN 1062364 C CN1062364 C CN 1062364C CN 94110390 CN94110390 CN 94110390 CN 94110390 A CN94110390 A CN 94110390A CN 1062364 C CN1062364 C CN 1062364C
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Abstract
The present invention relates to a luminous sign plate and a preparation method thereof. A protective layer is made on the surface of a bottom plate by an electrostatic painting process; then, silk-screen drop-out printing dry powder is burnt and made into a color shielding layer and a luminous layer at high temperature in the positions of word-code patterns. In the present invention, white resin dry powder is burnt and made into the color shielding layer; luminous material and transparent resin are mixed to be burnt and made to form the luminous layer; a light shielding layer is used for covering the sepia protective layer in order to maximumly exert the function of luminous particles in the luminous layer, and the luminous particles are kept not to contact outside air and moisture in order to increase the luminous intensity of the luminous label. Compared with the prior art, the present invention has the advantages that the luminescence is uniform and durable, the luminous particles are not easily blackened, the service life of the luminous label is long, etc.
Description
The present invention relates to a kind of preparation method of luminescence scutcheon, this label can be used as various traffic sign direction boards, billboard ad, floor label etc.
Usually making luminescence scutcheon is to utilize celluloid paint as carrier, luminescent powder is transferred converted in the celluloid paint, and brushing is coated with at quilt produces luminescence scutcheon on the part, and with the process of this making luminescence scutcheon, its defective is a lot.Because mostly luminous object is a kind of inorganic particle crystal, the light-emitting particles crystal is too pulverized and is ground, the luminosity of luminescent crystal is reduced, in order to increase and not reducing luminosity, manufacturer must keep the size of the crystal grain of certain limit in process of lapping, yet using lean solution paint as carrier, luminescent powder is brushed the volatilization through painting on the coated article surface, make the face that is coated with produce scraggly folding again, and the scraggly result that folds, not only make the face of being coated with lack smooth finish, the more important thing is and caused the luminescent crystal particle to contact with airborne moisture, thereby make the crystal particles blackout, the granule crystal of melanism has further influenced luminosity again, and luminescent crystal is contacted with airborne moisture content, absorb, then make the luminosity of luminophor more and more lower, thereby shortened serviceable life, only made luminescent crystal under the vacuum condition that does not have moisture content fully, just can make not melanism of granule crystal.This is the problem of all studying both at home and abroad.
Notification number is in the CN1036281A instructions, discloses a kind of Reflexive afterglow sign board and production technology, and this technology comprises: (1) uses aluminium sheet as support, and is handled; (2) brushing paint layer on aluminium sheet or iron plate; (3) on pattern, discharge glass microballoon; (4) brushing light-emitting oil enamelled coating on glass microballoon; (5) put finishing varnish protected at last more in the above.
Notification number is in the CN2092465U instructions, has introduced a kind of luminous license plate for motor vehicle, and its manufacture craft flow process is: (1) is at first at aluminium sheet or iron plate upper punch belling shape number pattern; (2) spray paint at whole aluminium sheet or on above the iron plate; (3) sintering or spraying one deck luminescent material on the character code of protruding; (4) handle through brushing polish lacquer Lacquer finish again, for the luminescent material surface increases protective seam.
Notification number is a disclosed luminescence scutcheon in the CN2098719U instructions, prevents that the method that luminophor contacts with moisture content from being to paste the diaphragm of sticking layer of transparent on the surface of luminescence scutcheon again.
Notification number is a manufacture craft of having introduced a kind of electroluminescence layer of enamel in the CN1064493A instructions.This technology with luminescent powder with contain alcohols and volatile oil is deployed into proper viscosity, adopt the screen printing method that luminophor is transferred on the enamel screen blank, fire after the drying and form.The easy contaminated environment of harmful gas that this technology sintering procedure produces, simultaneously, luminophor is directly exposed to the top layer face, is easy to generate the melanism catabiosis.
In sum; although the luminescence scutcheon of Zhi Zuoing difference to some extent on manufacture craft folded, prevents for preventing crystal that luminescent crystal from contacting with airborne moisture content in the past, and increase luminescence scutcheon surface smoothing sense aspect; adopt the celluloid paint application, or pasted transparent protective film.But, be difficult to reach desired ideal effect because paint and diaphragm self exist volatility, poor adhesive force, defective such as easily wear out, advance to split.Directly make luminophor ingress of air moisture content easily produce the melanism catabiosis, influence illumination effect.
The object of the invention is to overcome the deficiency of above-mentioned prior art and preparation method that a kind of luminescence scutcheon is provided, and this method adopts electrostatic plastic spraying high-temperature firing dry powder to make luminescence scutcheon.
The luminescence scutcheon that arrives involved in the present invention adopts electrostatic plastics-spraying technology to make protective layer at the label backplate surface, and the not corrosion of protection base plate strengthens its impression effect.At protective layer label character code patterned surfaces, adopt silk screen process to hide look material dry powder, become to hide chromatograph through high-temperature firing and make not luminescence scutcheon.Hide the look material and generally select the white resin powder for use, form white and hide chromatograph.Hiding the chromatograph surface with silk screen process luminescent material and transparent resin potpourri, become luminescent layer through high-temperature firing again, make luminescence scutcheon.Above-mentioned luminescent material can adopt zinc paste, europium oxide, calcium sulfide etc., and select 1 for use with transparent resin: 2-1: 3 ratios mix.
A kind of preparation method of above-mentioned luminescence scutcheon, comprise that base plate impact briquetting, base plate pre-service, backplate surface electrostatic plastic spraying make technological processs such as protective layer, it is characterized in that said preparation method adopts silk screen will hide look material dry powder and bites at the character code patterned surfaces, become light shield layer through a high-temperature firing, cool off through normal temperature, with silk screen process luminescent material and transparent resin mixed powder, become luminescent layer on the light shield layer surface through the secondary high-temperature firing.
This luminescence scutcheon has changed uses volatile paint as carrier in the past, the process that luminescenjt powder is processed luminescence scutcheon converted in accent, all adopt the dry powder silk screen process, the electric furnace high-temperature firing melts, and makes to be subjected to ray velocity fast, and illumination effect is good, long between the surplus light time, surfacing is smooth, does not fold, not the luminescence scutcheon of new generation of melanism.Its preparation technology's mechanism is: the first step is bitten the resin dry powder of white on the label base plate with silk screen on the anticorrosive coat of the label base plate that electrostatic spraying processes, form white dry powder pattern, make not luminescence scutcheon through electric furnace high temperature heat fused, its effect has two: one, and the background color that color is heavier covers, and prevents because the very grave luminosity that influences of background color; The 2nd, as at the back side of glass vacuum plated aluminum film, form the minute surface effect, help the light reflection.Second goes on foot: luminescent powder is transferred according to a certain percentage converted in transparent resin dry powder, sieve is mixed evenly, still the mixed powder of accent being converted with former silk screen plate piece is bitten once more and is being formed on the pattern of the plate face of luminescence scutcheon not and reaching identical, and then advance electric furnace high temperature heat fused and lower the temperature, stable curing, make perfect desirable luminescence scutcheon at last, transparent resin dry powder and luminescent powder are concocted together, through the high temperature heat fused, the luminescent powder that fusing takes place suspends to dive and plants in similar vacuum environment in the transparent resin in the liquid condition, after heating, transparent resin dry powder transparency increases, behind the transparent resin cooling curing, smooth surface, the luminescent crystal particle also can not fold the surface of transparent resin, solved the difficult problem that luminescent powder directly contacts with water in air, prevented melanism, this moment, luminescence scutcheon saw that from the front luminescent crystal is uniform ordered state, see that from tangent plane luminescent crystal is suspension and is solidificated in the transparent resin, therefore it is subjected to ray velocity fast, it is good to hold light and illumination effect, long between the residual light time.
Above-mentioned luminescence scutcheon manufacture craft adopts the silk screen secondary dry powder of biting, and secondary high-temperature firing, its firing temperature generally are controlled between 170 ℃～190 ℃, and the isothermal curing time is 20～30 minutes.
Narrate the specific embodiment of the invention below.In the present embodiment, adopt metal aluminum sheet impact briquetting base plate through after the pre-service, make protective layer with electrostatic plastic spraying process at backplate surface, moving of silk screen film is placed in base plate character pattern position exactly, be coated with and be layered on the character pattern surface as hiding the look material with white resin, above-mentioned base plate was inserted in the electric furnace 20 minutes,, dry powder is fired into the screening chromatograph through 180 ℃ of temperature, after the cooling, adopt the silk screen process method again, luminescent material and transparent resin are mixed at 1: 2, as the luminescent layer material, be coated with to be layered on and hide the chromatograph surface, through 180 ℃ of high temperature, isothermal curing 25 minutes takes out cooling and makes luminescence scutcheon.Above-mentioned luminescence scutcheon is tested through luminosity, and original intensity is 0.04cd/m
2, after ten and a half hours, 0.0002cd/m is reduced in brightness
2
Claims (2)
1. the preparation method of a luminescence scutcheon, comprise that base plate impact briquetting, base plate pre-service, backplate surface electrostatic plastic spraying make technological processs such as protective layer, it is characterized in that said preparation method adopts silk screen will hide look material dry powder and bites at the character code patterned surfaces, become light shield layer through a high-temperature firing, cool off through normal temperature, with silk screen process luminescent material and transparent resin mixed powder, become luminescent layer on the light shield layer surface through the secondary high-temperature firing.
2. luminescence scutcheon preparation method according to claim 1 is characterized in that said high-temperature firing temperature is controlled at 170 ℃ of-190 ℃ of temperature ranges, and the isothermal curing time is 20-30 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110390 CN1062364C (en) | 1994-07-14 | 1994-07-14 | Luminescent sign plate and its mfg. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110390 CN1062364C (en) | 1994-07-14 | 1994-07-14 | Luminescent sign plate and its mfg. method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1108413A CN1108413A (en) | 1995-09-13 |
| CN1062364C true CN1062364C (en) | 2001-02-21 |
Family
ID=5034363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110390 Expired - Fee Related CN1062364C (en) | 1994-07-14 | 1994-07-14 | Luminescent sign plate and its mfg. method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1062364C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20008662U1 (en) * | 2000-05-13 | 2001-09-20 | Woebel Wolfgang | Powder coating |
-
1994
- 1994-07-14 CN CN 94110390 patent/CN1062364C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1108413A (en) | 1995-09-13 |
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