DE875979C - Production of fluorescent material that does not separate - Google Patents
Production of fluorescent material that does not separateInfo
- Publication number
- DE875979C DE875979C DER1987D DER0001987D DE875979C DE 875979 C DE875979 C DE 875979C DE R1987 D DER1987 D DE R1987D DE R0001987 D DER0001987 D DE R0001987D DE 875979 C DE875979 C DE 875979C
- Authority
- DE
- Germany
- Prior art keywords
- production
- separate
- mixture
- fluorescent material
- zinc
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000000203 mixture Substances 0.000 claims description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- UQMZPFKLYHOJDL-UHFFFAOYSA-N zinc;cadmium(2+);disulfide Chemical class [S-2].[S-2].[Zn+2].[Cd+2] UQMZPFKLYHOJDL-UHFFFAOYSA-N 0.000 description 4
- 229910052793 cadmium Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 235000019646 color tone Nutrition 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/22—Luminous paints
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Luminescent Compositions (AREA)
Description
Herstellung sich nicht entmischender Leuchtstoffgemenge Es ist bekannt, daß durch Mischen verschiedener Leuchtstoffe besondere Farbtöne erzielt, insbiesondere weißleuchtende Produkte erhalten werden können. So entsteht z. B. eine weißleuchtende, für Fernsehleuchtschirme geeignete Masse, wenn blau-, ,ei - b- und orangeleuchtende Zink- bzw. Zink-Kadmiumsulfide miteinander vermischt werden. Diese Mischungen zeigen indessen die für ihre Verwendung sehr nachteilige Eigenschaft, einzelne Farbtöne, insbesondere das Blau, auszusondern, sz) daß es schwierig ist, z. B. rein weißleuchtende Schichten herzustellen.. Es entstehen Schichten, die stellenweise mehr bläulich erscheinen, während an anderen Stellen wiederum eine rötliche Färbung vorherrscht. Das gleiche gilt auch für alle ähn,-liehen Gemenge aus Silicaten, Wolframaten usw. Es wurde nun gefunden, daß man ein homogen, bleibendes, sich nicht entraischendes Leuchtstoffgemenge erhält, wenn man dem Trockenleuchtstoffpulver eine geringe Menge einer Wasserglaslösung beimengt, diese gut untermischt und dann das Gemiscl-1 trocknet.Production of non-segregating phosphor batches It is known that special color tones can be achieved by mixing different phosphors, in particular white-luminescent products can be obtained. So z. B. a fluorescent white, suitable for fluorescent television screens, if blue,, egg - b and orange glowing zinc or zinc-cadmium sulfides are mixed together. However, these mixtures show the very disadvantageous property for their use of singling out individual color tones, especially the blue, sz) that it is difficult, e.g. B. to produce pure white luminescent layers. Layers are created that appear more bluish in places, while a reddish color predominates in other places. The same applies to all similar mixtures of silicates, tungstates, etc. It has now been found that a homogeneous, permanent, non-dissolving phosphor mixture is obtained if a small amount of a water glass solution is added to the dry phosphor powder, this is mixed well and then the Gemiscl-1 dries.
Es ist an sich, bekannt, einheitliche Leuchtstoftpulver mitWasserglaslösung zu behandeln, um eine ,u - te Rieselfähigkeit zu erreichen.. Die in vorliegendem Verfahren erstrebte Wirkun.g (Verhinderung der Entmischung der einzelnen Komponenten) kann aber durch getrenntes Behandeln der einzelnen Komponenten und nachträgliches Vermischen der behandelten Komponenten nicht erreicht -w-erden, viehnehr beruht hier die Wirkung des Wasserglases darauf, daßTeilchen mehrererverscbiedenerLeuchtstoffe zu trauhenf 8rinigen Aggregaten zusammengekittet werden, wobei dann j edes dieser Aggregate die Einzelkomponente des Gemenges -etwa in dem gleichen Verhältnis ienthält, wie sie in dem unbehandelten Ausgangsgemenge vorlagen.It is per se, known to treat uniform Leuchtstoftpulver mitWasserglaslösung, a, u - to reach te .. flowability but can sought in the present process Wirkun.g (prevention of separation of the individual components) by separately treating the individual components and subsequent not reached mixing the components treated -w-earth viehnehr here, the effect is the water glass on daßTeilchen mehrererverscbiedenerLeuchtstoffe be cemented together to trauhenf 8rinigen aggregates, in which case edes these aggregates j is the single component of the mixture -about in the same ratio ienthält as in were present in the untreated initial batch.
Diese Aggregate sind recht stabil, so daß sie auch bei der weiteren Verarbeitung der Farbe in genügendem Umfang ;erhalten bleiben.These aggregates are quite stable, so that they can also be used in the further Processing of the paint to a sufficient extent; to be retained.
Das Leuclitstoffgemenge behält seine wertvolle Eigenschaft auch dann bei, wenn man es mit Wasser alkalifrei wäscht. Beispiel i Rcrtl-euchtendesZink-Kad,rniumsulfi#d (ZnS+350/0 Cd,S; aktiv. mit C#u), orangeleuchtendes Zink-Kadmiumsulfid (Zn S + 2 o % Cd S; aktiv. mit Cu), gelb -leuchtendes Zink-Kadtmiumsulfid (Zn S + i i % Cd, S; aktiv. mit Gu), bl#auleuchtendes Zinksulfid (ZnS; aktiv. mit A"g). Insgesamt 68oog dieses Gemenges werden mit 220.ccm Kaliwasserglaslösung vom spezifischen Gewicht 1,2 gut vermischt und auf dem Wasserbad getrocknet. Das Gemenge entmischt sich nicht mehr. BeiSpitl 2 Ein nach Beispiel i behandelt-es Leuchtstoffgemenge wird nach dem Trocknen, das in diesem Fall zweckmäßig bei, etwas höherer Temperatur vor-.genommen wird, mit Wasser alkaUfrei gewaschen und getrocknet. Das Gemenge entmischt sich nicht mehr,.The leuclite mixture retains its valuable properties even if it is washed alkali-free with water. Example i Rcrtl-luminous zinc-cadmium sulfide (ZnS + 350/0 Cd, S; active. With C # u), orange-glowing zinc-cadmium sulfide (Zn S + 20% Cd S; active. With Cu), yellow -Luminous zinc cadmium sulphide (Zn S + II% Cd, S; active. with Gu), blue-luminescent zinc sulphide (ZnS; active. with A "g). A total of 68oog of this mixture are mixed with 220 , 2 well mixed and dried on a water bath. The mixture no longer separates. In Spitl 2 A phosphor mixture treated according to Example 1 is after drying, which in this case is expediently carried out at a slightly higher temperature, with water Washed alkali-free and dried. The mixture no longer separates.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER1987D DE875979C (en) | 1939-05-28 | 1939-05-28 | Production of fluorescent material that does not separate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER1987D DE875979C (en) | 1939-05-28 | 1939-05-28 | Production of fluorescent material that does not separate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE875979C true DE875979C (en) | 1953-05-07 |
Family
ID=7395781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DER1987D Expired DE875979C (en) | 1939-05-28 | 1939-05-28 | Production of fluorescent material that does not separate |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE875979C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1028261B (en) * | 1954-01-06 | 1958-04-17 | Auergesellschaft Ag | Process for improving the flowability of phosphors |
| DE3809937A1 (en) * | 1988-03-24 | 1989-10-05 | Sf Vollverbundstein | PROCESS FOR PRODUCING BUILDING MATERIALS WITH COLORING PROPERTIES |
-
1939
- 1939-05-28 DE DER1987D patent/DE875979C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1028261B (en) * | 1954-01-06 | 1958-04-17 | Auergesellschaft Ag | Process for improving the flowability of phosphors |
| DE3809937A1 (en) * | 1988-03-24 | 1989-10-05 | Sf Vollverbundstein | PROCESS FOR PRODUCING BUILDING MATERIALS WITH COLORING PROPERTIES |
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