CN102179510A - Oxidation resisting platy silver powder and preparation method thereof - Google Patents
Oxidation resisting platy silver powder and preparation method thereof Download PDFInfo
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- CN102179510A CN102179510A CN2011100918946A CN201110091894A CN102179510A CN 102179510 A CN102179510 A CN 102179510A CN 2011100918946 A CN2011100918946 A CN 2011100918946A CN 201110091894 A CN201110091894 A CN 201110091894A CN 102179510 A CN102179510 A CN 102179510A
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- silver powder
- flake silver
- oxidation resistant
- high purity
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Abstract
The invention discloses oxidation resisting platy silver powder and a preparation method thereof, relates to the platy silver powder and aims to solve the problem that the conventional silver powder is easy to oxidize so the anti-counterfeiting performance is influenced. The oxidation resisting platy silver powder comprises the following components: 6-to-8-micron platy silver powder, high-purity water and a silver protective agent; the content ratio of the platy silver powder to the high-purity water is 1 kilogram/1liter; the content ratio of the silver protective agent to the platy silver powder is 20 to 50 grams/1kilogram; the preparation method comprises the following steps of: a, taking the high-purity water in a ratio, placing the high-purity water in a container, and heating to 80 DEG C; b, weighing the platy silver powder and the silver protective agent in the ratio and placing in the container; c, soaking for one hour and then fully stirring; d, pouring the aqueous solution of the platy silver powder into a plurality of drying disks, wherein the temperature of a drying oven is set to be 80 DEG C; and e, after drying, obtaining the oxidation resisting platy silver powder.
Description
Technical field
The present invention relates to a kind of flake silver powder and preparation method thereof, belong to an important research field of metal powder metallurgy.
Background technology
Anti-oxidant flake silver powder is a kind of functional material of latent-image anti-counterfeiting, has overcome the easy oxidation of flake silver powder and the technical bottleneck of variable color.Anti-oxidant silver powder mainly is applicable in the metal ink of marketable securities such as various banknotes, security, license, bill, utilize the metallic luster of anti-oxidant flake silver powder, the top grade of raising printing is aesthetics very, can be under to the x ray fluoroscopy x situation, to lie in base pattern shows, and the latent image pattern is hidden in and do not show in the base pattern, realizes false proof purpose.By the metal ink that uses anti-oxidant flake silver powder to make, reaching the perspective latent image is difficult for being observed under normal observation situation, make the perspective latent image can be hidden in the middle of the base pattern, and under to x ray fluoroscopy x observation situation, the line density that constitutes the perspective latent image is big, makes its formation " sheet " shape with the light shield portions, and light transmission is than base pattern difference, thereby stealthy latent image pattern is come out by " perspective ", ordinary populace can not identified latent image by instrument at an easy rate.
If adopt common nonmetal pigment, the line density that constitutes latent image pigment is too big, then easily makes lines stick with paste into a slice and inseparablely come, and influences the clear and attractive in appearance of pattern; The line density that constitutes latent image is too little, the reflectance of latent image pattern is improved and can not be ensconced in the base pattern by shadow, has lost false proof purpose.
Summary of the invention
The problem that the objective of the invention is to solve the existing easy oxidation of flake silver powder and influence anti-counterfeiting performance provides a kind of oxidation resistant flake silver powder and preparation method thereof, improves the security and the aesthetic measure that use this flake silver powder to make false proof latent image.
Purpose of the present invention realizes by following technical proposals:
A kind of oxidation resistant flake silver powder comprises following composition:
The flake silver powder of 6-8 micron
High purity water
Silver protecting agent
Wherein, the content ratio of flake silver powder and high purity water is 1 kilogram/1 liter, and the content ratio of silver protecting agent and flake silver powder is/1 kilogram of a 20-50 gram.
In the embodiment, described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 200 grams-500 grams
In the specific embodiment, described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 200 grams
In the specific embodiment, described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 300 grams
In the specific embodiment, described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 400 grams
In the specific embodiment, described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 500 grams
In the specific embodiment, described method comprises the steps:
A. measure high purity water in proportion, above-mentioned high purity water is placed container, be heated to 80 ℃;
B. take by weighing flake silver powder and silver protecting agent in proportion, place said vesse;
C. soak after 1 hour and fully stir;
D. the aqueous solution of above-mentioned flake silver powder is poured in several drying trays, oven temperature is set to 80 ℃;
E. obtain oxidation resistant flake silver powder after the oven dry.
In the specific embodiment, among the described step b, the flake silver powder amount of getting is 10 kilograms.
In the specific embodiment, among the described step b, the silver protecting agent amount of getting is 200 grams～500 grams; In the described steps d, the quantity of drying tray is 5.
The present invention adopts the preparation method of above-mentioned steps and/or the flake silver powder of above-mentioned prescription; make and dissolve in silver protecting agent in the silver powder; thereby improve the antioxygenic property of flake silver powder; can be under to the x ray fluoroscopy x situation; to lie in base pattern shows; and the latent image pattern is hidden in and do not show in the base pattern, realizes false proof purpose.By the metal ink that uses anti-oxidant flake silver powder to make, reaching the perspective latent image is difficult for being observed under normal observation situation, make the perspective latent image can be hidden in the middle of the base pattern, and under to x ray fluoroscopy x observation situation, the line density that constitutes the perspective latent image is big, makes its formation " sheet " shape with the light shield portions, and light transmission is than base pattern difference, thereby stealthy latent image pattern is come out by " perspective ", ordinary populace can more easily not identified latent image by instrument.
The specific embodiment
The present invention is further illustrated below in conjunction with specific embodiment.
A kind of oxidation resistant flake silver powder comprises following composition:
The flake silver powder of 6-8 micron
High purity water
Silver protecting agent
Wherein, the content ratio of flake silver powder and high purity water is 1 kilogram/1 liter, and the content ratio of silver protecting agent and flake silver powder is/1 kilogram of a 20-50 gram.
More particularly, described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 200 grams-500 grams
Embodiment 1:
Described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 200 grams
Its preparation method is as follows:
A. measure 10 liters of high purity waters, above-mentioned high purity water is placed container, be heated to 80 ℃;
B. take by weighing 10 kilograms of flake silver powders and silver protecting agent (can select Shenzhen EZ-AGII of E Zhen Science and Technology Ltd. water-soluble silver protecting agent for use) 200 grams, place said vesse;
C. soak after 1 hour and fully stir;
D. the aqueous solution of above-mentioned flake silver powder is poured in 5 drying trays, oven temperature is set to 80 ℃;
E. obtain oxidation resistant flake silver powder after the oven dry.
Embodiment 2: described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 300 grams
Its preparation method is as follows:
A. measure 10 liters of high purity waters, above-mentioned high purity water is placed container, be heated to 80 ℃;
B. take by weighing 10 kilograms of flake silver powders and silver protecting agent (can select Shenzhen EZ-AGII of E Zhen Science and Technology Ltd. water-soluble silver protecting agent for use) 300 grams, place said vesse;
C. soak after 1 hour and fully stir;
D. the aqueous solution of above-mentioned flake silver powder is poured in 5 drying trays, oven temperature is set to 80 ℃;
E. obtain oxidation resistant flake silver powder after the oven dry.
Embodiment 3:
Described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 400 grams
Its preparation method is as follows:
A. measure 10 liters of high purity waters, above-mentioned high purity water is placed container, be heated to 80 ℃;
B. take by weighing 10 kilograms of flake silver powders and silver protecting agent (can select Shenzhen EZ-AGII of E Zhen Science and Technology Ltd. water-soluble silver protecting agent for use) 400 grams, place said vesse;
C. soak after 1 hour and fully stir;
D. the aqueous solution of above-mentioned flake silver powder is poured in 5 drying trays, oven temperature is set to 80 ℃;
E. obtain oxidation resistant flake silver powder after the oven dry.
Embodiment 4:
Described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 500 grams
Its preparation method is as follows:
A. measure 10 liters of high purity waters, above-mentioned high purity water is placed container, be heated to 80 ℃;
B. take by weighing 10 kilograms of flake silver powders and silver protecting agent (can select Shenzhen EZ-AGII of E Zhen Science and Technology Ltd. water-soluble silver protecting agent for use) 500 grams, place said vesse;
C. soak after 1 hour and fully stir;
D. the aqueous solution of above-mentioned flake silver powder is poured in 5 drying trays, oven temperature is set to 80 ℃;
E. obtain oxidation resistant flake silver powder after the oven dry.
Claims (10)
1. an oxidation resistant flake silver powder is characterized in that, comprises following composition:
The flake silver powder of 6-8 micron
High purity water
Silver protecting agent
Wherein, the content ratio of flake silver powder and high purity water is 1 kilogram/1 liter, and the content ratio of silver protecting agent and flake silver powder is/1 kilogram of a 20-50 gram.
2. a kind of according to claim 1 oxidation resistant flake silver powder is characterized in that, described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 200 grams-500 grams.
3. a kind of as claimed in claim 1 or 2 oxidation resistant flake silver powder is characterized in that, described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 200 grams.
4. a kind of as claimed in claim 1 or 2 oxidation resistant flake silver powder is characterized in that, described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 300 grams.
5. a kind of as claimed in claim 1 or 2 oxidation resistant flake silver powder is characterized in that, described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 400 grams.
6. a kind of as claimed in claim 1 or 2 oxidation resistant flake silver powder is characterized in that, described its content of oxidation resistant flake silver powder is specially:
10 kilograms of the flake silver powders of 6-8 micron
10 liters of high purity waters
Silver protecting agent 500 grams.
7. a kind of according to claim 1 oxidation resistant flake silver powder preparation method is characterized in that described method comprises the steps:
A. measure high purity water in proportion, above-mentioned high purity water is placed container, be heated to 80 ℃;
B. take by weighing flake silver powder and silver protecting agent in proportion, place said vesse;
C. soak after 1 hour and fully stir;
D. the aqueous solution of above-mentioned flake silver powder is poured in several drying trays, oven temperature is set to 80 ℃;
E. obtain oxidation resistant flake silver powder after the oven dry.
8. as a kind of oxidation resistant flake silver powder preparation method as described in the claim 7, it is characterized in that the high purity water amount of getting is 10 liters among the described step a.
9. as a kind of oxidation resistant flake silver powder preparation method as described in claim 7 or 8, it is characterized in that among the described step b, the flake silver powder amount of getting is 10 kilograms.
10. as a kind of oxidation resistant flake silver powder preparation method as described in the claim 9, it is characterized in that among the described step b, the silver protecting agent amount of getting is 200 grams～500 grams; In the described steps d, the quantity of drying tray is 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110091894 CN102179510B (en) | 2011-04-13 | 2011-04-13 | Oxidation resisting platy silver powder and preparation method thereof |
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| CN 201110091894 CN102179510B (en) | 2011-04-13 | 2011-04-13 | Oxidation resisting platy silver powder and preparation method thereof |
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| CN102179510A true CN102179510A (en) | 2011-09-14 |
| CN102179510B CN102179510B (en) | 2013-05-08 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1717440A (en) * | 2002-11-29 | 2006-01-04 | 陶氏康宁东丽株式会社 | Silver-based powder, method of preparation thereof, and curable silicone composition |
| WO2006095611A1 (en) * | 2005-03-11 | 2006-09-14 | Toyo Ink Mfg. Co., Ltd. | Electrically conductive ink, electrically conductive circuit, and noncontact-type medium |
| CN101214555A (en) * | 2008-01-16 | 2008-07-09 | 武汉理工大学 | Method for preparing spherical nano silver powder |
| CN101287566A (en) * | 2005-10-14 | 2008-10-15 | 东洋油墨制造株式会社 | Method for producing metal particle dispersion, conductive ink using metal particle dispersion produced by such method, and conductive coating film |
| CN101353800A (en) * | 2007-07-26 | 2009-01-28 | 深圳市华傲创表面技术有限公司 | Water-soluble silver protecting agent and preparation thereof |
| CN101569935A (en) * | 2009-06-05 | 2009-11-04 | 中国乐凯胶片集团公司 | Preparation method for flaky micro-silver powder |
-
2011
- 2011-04-13 CN CN 201110091894 patent/CN102179510B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1717440A (en) * | 2002-11-29 | 2006-01-04 | 陶氏康宁东丽株式会社 | Silver-based powder, method of preparation thereof, and curable silicone composition |
| WO2006095611A1 (en) * | 2005-03-11 | 2006-09-14 | Toyo Ink Mfg. Co., Ltd. | Electrically conductive ink, electrically conductive circuit, and noncontact-type medium |
| CN101287566A (en) * | 2005-10-14 | 2008-10-15 | 东洋油墨制造株式会社 | Method for producing metal particle dispersion, conductive ink using metal particle dispersion produced by such method, and conductive coating film |
| CN101353800A (en) * | 2007-07-26 | 2009-01-28 | 深圳市华傲创表面技术有限公司 | Water-soluble silver protecting agent and preparation thereof |
| CN101214555A (en) * | 2008-01-16 | 2008-07-09 | 武汉理工大学 | Method for preparing spherical nano silver powder |
| CN101569935A (en) * | 2009-06-05 | 2009-11-04 | 中国乐凯胶片集团公司 | Preparation method for flaky micro-silver powder |
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| CN102179510B (en) | 2013-05-08 |
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