Pigment with mother-of-pearl luster

专利摘要:
Die Anmeldung betrifft ein Perlglanzpigment auf Basis von mit Metalloxidenüberzogenen plättchenförmigen Substraten, insbesondere Glimmer, wobei die Metalloxid­schicht sowohl Titan als auch Eisen enthält, dadurch gekennzeichnet, daß das Pigment einen Mehrschichtaufbau besitzt, wobei auf eine erste Schicht von TiO₂ in der Rutilform eine Schicht von Pseudoprookit und eine Eisenoxidschicht folgt.
公开号:SU1715208A3
申请号:SU864027892
申请日:1986-08-06
公开日:1992-02-23
发明作者:Франц Клаус-Дитер；Амброзиус Клаус
申请人:Мерк Патент Гмбх (Фирма)；
IPC主号:

专利说明:

The invention relates to pearlescent pigments based on mica particles coated with metal oxides, preferably titanium and iron, and can be used to make glazes and enamels.
The aim of the invention is to improve the light fastness of the pigment.
PRI me R 1. 100 g of mica particles are supplied in succession with samples of 0.8 g of SnOa and 30 tYu in an aqueous suspension. Suspended undigested pigment has a weak yellow interference color. After the stirrer has been switched off and the pigment has precipitated, the supernatant is removed and 2500 ml of water, 81 g of anhydrous FeCIs and 16 g of sodium acetate are added. After heating for 1 hour to 70-80 ° C, filtration is performed, washed with chlorine, dried and calcined for 30 minutes at 850 ° C.
A deep yellow golden interference color pigment is obtained, which, according to X-ray structural analysis data (Deba Scherrer diagram), consists of discrete layers of rutile, pseudo-brooch and hematite with a thickness of 20.10 and 25nm, respectively. The content of components in the pigment, wt.%: TiOa 17,6; Re203 23.4; Sn02 0.5; mica 58.5.
The pigment has good durability in the glazes and according to Kronos test (according to five-speed gray, scale) has a light resistance of 5. This means that the pigment does not show photo-activity, since under the action of light according to the above analysis there is practically no change.

权利要求:
Claims (2)
[1]
Claim
1. Pearl with a pearly sheen on. the basis of mica particles in the form of coated plates, including a sequentially located inner layer of titanium dioxide in the form of rutile, containing a rutile activator of metal oxide, and the next layer of pseudobrucite, with the exception that, in order to increase light resistance, it contains a layer of pseudobrucite with a thickness of 5-15 nm and an additional outer layer of pseudobrucite of iron oxide RegOz with a thickness of 5-50 nm in the following ratio of components, wt.%:
Titanium dioxide 17.6-50.0
Iron oxide 10.0-50.0
Rutilization activator 0.5-50.0 Mica Else
[2]
2. Pigment pop. 1, characterized in that it contains titanium dioxide in the form of rutile with a thickness of 15-70 nm.

类似技术:

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SU1715208A3|1992-02-23|Pigment with mother-of-pearl luster

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同族专利:

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法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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DE19853528256|DE3528256A1|1985-08-07|1985-08-07|IRON OXIDE-COATED PEARL PIGMENTS|

---