CN1297630C - Antifogery rare earth luminescent materials and preparing method thereof - Google Patents
Antifogery rare earth luminescent materials and preparing method thereof Download PDFInfo
- Publication number
- CN1297630C CN1297630C CNB2004100486143A CN200410048614A CN1297630C CN 1297630 C CN1297630 C CN 1297630C CN B2004100486143 A CNB2004100486143 A CN B2004100486143A CN 200410048614 A CN200410048614 A CN 200410048614A CN 1297630 C CN1297630 C CN 1297630C
- Authority
- CN
- China
- Prior art keywords
- rare earth
- earth luminescent
- luminescent material
- powder
- present
- 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.)
- Expired - Fee Related
Links
Landscapes
- Luminescent Compositions (AREA)
Abstract
The present invention relates to a rare earth luminescent material for counterfeiting prevention, which belongs to the fields of luminescence and display. In the present invention, after being sufficiently mixed and ground, materials of components of the structural formula of M<1-x-y>S: Mn<x>r<y> are sintered and synthesized at high temperature, and are cooled; powder is selected, pulverized, and sieved; after the powder is post-treated, crystal rare earth luminescent powder emitting orange under ultraviolet irradiation is obtained. Patterns printed by the materials of the present invention emit orange fluorescence under the ultraviolet irradiation. Under the condition of no ultraviolet irradiation, bright orange fluorescence can be emitted by quick friction on the patterns to form dual counterfeiting prevention. The present invention overcomes the defect that ordinary materials emit the fluorescence only under the ultraviolet irradiation, and enhances the degree of counterfeiting prevention and confidentiality. The rare earth luminescent material is a new-generation luminescent material for counterfeiting prevention, with the advantages of no toxicity, no pollution, energy saving, convenience and easy operation.
Description
Technical field:
The invention belongs to luminous and the demonstration field, relate to a kind of false-proof rear earth luminescent material.
Background technology:
The anti-fake material kind is more both at home and abroad at present, and they are mainly used in aspects such as currency, bill, certificate and trade mark, generally just send fluorescence after uviolizing, and false proof condition has certain limitation, and practical application is subjected to certain restriction.
Summary of the invention:
Rare earth luminescent material of the present invention, the chemical structural formula of this material is: M
1-x-yS: R
xr
y, take by weighing its reagent material by its structural formula respectively with weight zinc sulphide 90-99.5%, each 0.01-1% of other material, after thorough mixing all ground, quartz boat or Al packed into
2O
3In the crucible, in the atmosphere that contains S (sulphur) through 900-1300 ℃ of high temperature sintering 1-3 hour.Take out cooling, under ultraviolet lamp, sintering synthetic fluorescent RE powder is selected powder,, stay the fluorescent material of good brightness selecting away of luminance difference; The fluorescent material of choosing is put into the solution that fills dilute hydrochloric acid soak, clean to the oven dry of neutral back, what can obtain white sends out the crystalline rare earth luminescenjt powder orange-yellow.
With above-mentioned rare earth crystal powder with the weight percent of 5-50% and transparent ink, resin, lacquer class or plastics uniform mixing after coated or make film, under uviolizing, send orange-yellow fluorescence, removing irradiation back fluorescence disappears, put on the skin sending orange-yellow fluorescence bright trace as grinding fast in the above, then finished the preparation of rare earth luminescent material of the present invention.M is a zinc element in the structural formula of rare earth luminescent material of the present invention, and S is an element sulphur, and R is an activator manganese, and r is coactivator rare earth element Sm, Eu, Dy, Er etc.; The span of x and y is selected 0.005≤x≤0.05,0.01≤y≤0.02.
Adopt false proof rare earth luminescent material of the present invention, make security pattern on currency, bill, certificate, trade mark, overcome the deficiency of generally just sending the anti-fake material of fluorescence after uviolizing, the present invention not only sends fluorescence through uviolizing.When no uviolizing, with hard material (as nail etc.) on pattern fast mill put on the skin also and can send the fluorescence bright trace.Dual antifalse effect is arranged, promptly convenient being suitable for, and nontoxic, pollution-free.
Description of drawings:
Fig. 1 is the excitation spectrum of the present invention-rare earth luminescent material.
Fig. 2 is the emmission spectrum of the present invention-rare earth luminescent material.
Embodiment:
Embodiments of the invention are as follows:
The structural formula M that the present invention adopts
1-x-yS: R
xr
yIn, M
1-x-yBe zinc element, S is an element sulphur, R
xBe activator, r
yBe coactivator rare earth element Sm, Eu, Dy, Er etc., the span of x and y is selected 0.005≤x≤0.05,0.01≤y≤0.02, and its glow peak system value is about 589nm.According to structural formula M
1-x-yS: R
xr
yPress the column count weight percent and take by weighing the reagent material:
Example 1
ZnS (fluorescence is pure) 97.5% NaCl (high-purity) 0.1%
S (high-purity) is quantitative
MnCl
2H
2O (high-purity) 0.1%
Sm
2O
3(4N) 0.5％
With the above-mentioned material that the takes by weighing Al that after grinding is mixed, packs into
2O
3Crucible through 950-1250 ℃ of high temperature sintering 1-3 hour, takes out and selects powder after the cooling, pulverizes, sieves in the atmosphere of full sulphur, the rare earth luminescent material of sending out coloured light orange that obtains promptly that outward appearance is white in color through aftertreatment.
Example 2
ZnS (fluorescence is pure) 98% NaCl (high-purity) 0.8%
S (high-purity) is quantitative
MnCl
2H
2O (high-purity) 0.8%
Sm
2O
3(4N) 0.4％
Sintering step is with example 1.
Example 3
ZnS (fluorescence is pure) 98.5% NaCl (high-purity) 0.6%
S (high-purity) is quantitative
MnCl
2H
2O (high-purity) 0.6%
Sm
2O
3(4N) 0.3％
Sintering step is with example 1.
Example 4
ZnS (fluorescence is pure) 99% NaCl (high-purity) 0.4%
S (high-purity) is quantitative
MnCl
2H
2O (high-purity) 0.4%
Sm
2O
3(4N) 0.2％
Sintering step is with example 1.
Example 5
ZnS (fluorescence is pure) 99.5% NaCl (high-purity) 0.2%
S (high-purity) is quantitative
MnCl
2H
2O (high-purity) 0.2%
Sm
2O
3(4N) 0.1％
Sintering step is with example 1.
Example 6
ZnS (fluorescence is pure) 99.4% NaCl (high-purity) 0.2%
S (high-purity) is quantitative
MnCl
2H
2O (high-purity) 0.3%
Eu
2O
3(4N) 0.1％
Sintering step is with example 1.
Example 7
ZnS (fluorescence is pure) 99.3% NaCl (high-purity) 0.2%
S (high-purity) is quantitative
MnCl
2H
2O (high-purity) 0.3%
Dy(4N) 0.2％
Sintering step is with example 1.
Example 8
ZnS (fluorescence is pure) 99.2% NaCl (high-purity) 0.2%
S (high-purity) is quantitative
MnCl
2H
2O (high-purity) 0.4%
Er(4N) 0.2％
Sintering step is with example 1.
Claims (4)
1. the preparation method of a false proof rare earth luminescent material is characterized in that utilizing structural formula M
1-x-yS:R
xr
yWherein M is a zinc element, and S is an element sulphur, and R is a manganese element, and r is a coactivator rare earth element samarium, and component is weighed respectively by zinc sulphide 90-99.5%, each 0.01-1% of other material, with above-mentioned material pack into after fully mixing grinds quartz boat or Al
2O
3Crucible through 950-1250 ℃ of high temperature sintering 1-3 hour, takes out cooling with burned material from crucible in sulphur atmosphere, under ultraviolet lamp sintering synthetic fluorescent RE powder is selected powder, choosing of luminance difference, stays the fluorescent material of good brightness; The fluorescent material of choosing is put into the solution that fills dilute hydrochloric acid soak, clean to the oven dry of neutral back, what can obtain white sends out the crystalline rare earth luminescenjt powder orange-yellow.
2. by the preparation method of the described false proof rare earth luminescent material of claim 1, be characterised in that structural formula M
1-x-yS:R
xr
yThe span of middle amount of element is selected 0.005≤x≤0.05,0.01≤y≤0.02.
3. by the false proof rare earth luminescent material of the described method preparation of claim 1, its structural formula is M
1-x-yS:R
xr
y
4. the application of the described false proof rare earth luminescent material of claim 3 in currency, ticket anti-pseudo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100486143A CN1297630C (en) | 2004-06-01 | 2004-06-01 | Antifogery rare earth luminescent materials and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100486143A CN1297630C (en) | 2004-06-01 | 2004-06-01 | Antifogery rare earth luminescent materials and preparing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1583951A CN1583951A (en) | 2005-02-23 |
| CN1297630C true CN1297630C (en) | 2007-01-31 |
Family
ID=34602103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100486143A Expired - Fee Related CN1297630C (en) | 2004-06-01 | 2004-06-01 | Antifogery rare earth luminescent materials and preparing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1297630C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111164613A (en) * | 2017-03-01 | 2020-05-15 | 光谱系统公司 | Coded polymeric substrates for banknote validation |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538947A (en) * | 2015-12-05 | 2016-05-04 | 深圳市天兴诚科技有限公司 | Anti-counterfeiting material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050892A (en) * | 1990-10-27 | 1991-04-24 | 中国科学院西安光学精密机械研究所 | Direct current electroluminescence powder material |
| CN1324912A (en) * | 2000-05-19 | 2001-12-05 | 中国科学院长春光学精密机械与物理研究所 | Fluorescnet material to convert and combine blue light of LED into white light |
-
2004
- 2004-06-01 CN CNB2004100486143A patent/CN1297630C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050892A (en) * | 1990-10-27 | 1991-04-24 | 中国科学院西安光学精密机械研究所 | Direct current electroluminescence powder material |
| CN1324912A (en) * | 2000-05-19 | 2001-12-05 | 中国科学院长春光学精密机械与物理研究所 | Fluorescnet material to convert and combine blue light of LED into white light |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111164613A (en) * | 2017-03-01 | 2020-05-15 | 光谱系统公司 | Coded polymeric substrates for banknote validation |
| CN111164613B (en) * | 2017-03-01 | 2023-08-15 | 光谱系统公司 | Coded polymeric substrates for banknote validation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1583951A (en) | 2005-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1180052C (en) | Wavelength-converting luminous material of white light for LED | |
| CN110079301B (en) | Organic long-afterglow material and preparation method and application thereof | |
| CN101851508B (en) | Europium activated silicate green fluorescent powder and application thereof in white light emitting diode | |
| CN110330512B (en) | Silver nanocluster fluorescent nanorod, preparation method thereof and application thereof in white light LED | |
| CN103160278A (en) | Red long-lasting phosphor material and preparation method thereof | |
| CN101054520A (en) | Red luminescence phosphor | |
| CN1948426A (en) | Preparation method of nanometer silicate long afterglow luminous material | |
| CN1255506C (en) | Boron-containing luminescent powder for LED, preparing method thereof and electric light source therefrom | |
| CN101054521A (en) | Red luminescence phosphor | |
| CN1297630C (en) | Antifogery rare earth luminescent materials and preparing method thereof | |
| CN1126746A (en) | Luminous material | |
| CN1297627C (en) | Machine-readable fluorescence/phosphorescence anti false material, method for fabricating the material and application | |
| CN1810921A (en) | Red long afterglow luminescent material and its prepn | |
| CN1301308C (en) | High luminosity aluminate long luminous material and preparation process thereof | |
| CN114656819A (en) | Antifouling self-cleaning coating and preparation method thereof | |
| CN102154011A (en) | Spherical strontium pyrophosphate photoinduced luminescent material and preparation method thereof | |
| CN1232609C (en) | Long persistence luminescence material containing cadmium oxide and its preparing method | |
| CN1718670A (en) | Method of preparing ultrafine long afterglow luminous material | |
| CN1216122C (en) | Long time luminescent material | |
| CN1837328A (en) | Preparation of visible light -initiated nano superlong-persistence luminescent materials | |
| CN1216124C (en) | Long-time red lighting material of RE-containing oxygen family compound and its prepn | |
| CN100462621C (en) | Luminous diode transmitting white light | |
| CN101029226A (en) | Fluorescent material for converting ultraviolet light into red light and its production | |
| CN1117134C (en) | Method for preparing long aftergrow inorganic luminous material | |
| CN101029227A (en) | Production of superfine fluorescent powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |