CN1247884A - Rare earth photodeveloper - Google Patents
Rare earth photodeveloper Download PDFInfo
- Publication number
- CN1247884A CN1247884A CN 98118224 CN98118224A CN1247884A CN 1247884 A CN1247884 A CN 1247884A CN 98118224 CN98118224 CN 98118224 CN 98118224 A CN98118224 A CN 98118224A CN 1247884 A CN1247884 A CN 1247884A
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- CN
- China
- Prior art keywords
- rare earth
- photodeveloper
- solution
- alcohol
- light
- 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.)
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- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Abstract
The rare earth photodeveloper is prepared by complexing alcohol soluble resin, rare earth cheoride, sodium amino-carboxylate and alcohol. It is colorless under sun light and visible light and glows with bright and yellow green 550-580 nm light under violet light with the color hue being dependent on the complexing process and thus secret. It is printed onto package of product mark for producing anti-fake effect.
Description
The invention belongs to a kind of rare earth photodeveloper.
At present, the photic colour development material that is used for antiforge sign, sign on city's field boundary has up to a hundred kinds, and particularly the white fluorescent dyestuff very easily obtains, and can directly use, and has lost secret meaning technically.And the white fluorescent dyestuff all presents slight fluorescent effect under daylight, be unfavorable for latent worn-out, for example patent 90101392.7 anti-fake materials and preparation method thereof, patent 93106107.5 photochromism anti-forging printing-inks and preparation method thereof, patent 96105594.4 are used for mark and differentiate that the ink composite etc. of article all adopts the organic dye class, under UV-light, present similar fluorescence, false proof easily, but remarkable inadequately, be unfavorable for concealing us, antifalse effect is not ideal enough.
The purpose of this invention is to provide a kind of rare earth photodeveloper, adopt rare earth element complex to radiate the 550-580nm light wave under UV-light, be bright-coloured, bright yellow-green colour, antifalse effect is good.Do not have fluorescent effect under daylight, concealment is superior.Be difficult for to obtain on the rare earth element city field boundary, even obtain, as the end through complexing, the light that under UV-light, also do not develop the color, and different complexing methods will present the coloured light that is not quite similar, the confidentiality height is difficult for imitating.
The present invention is made up of spirit-soluble resin 80-120g, rare earth chloride 5-15g, aminocarboxylic acid sodium 10-30g, 95% alcohol 1000ml, and it is solution A that weighing polyvinyl alcohol butyral 80-120g is dissolved in 700ml alcohol; Take by weighing rare earth chloride 5-15g and be dissolved in 100ml alcohol, and transfer ph=6.5, be solution B with hydrochloric acid; Take by weighing aminocarboxylic acid sodium 10-30g, be dissolved in 200ml alcohol, transfer ph=6.5, be solution C with hydrochloric acid; Solution B and C are added respectively in the solution A, stir evenly, be the rare earth photodeveloper of clear, colorless.
The present invention fills a prescription rationally, and technology is simple, and being printed on needs in the false proof packing of product, colourless under daylight and visible light, be bright-coloured, bright yellowish green sign, sign under UV-irradiation, on the anti-counterfeit printing material of distinguishing true from false, antifalse effect is remarkable.
It is solution A that but the present invention's weighing polyvinyl alcohol butyral 100g is dissolved in 700ml alcohol; Take by weighing rare earth chloride 10g and be dissolved in 100ml alcohol, and transfer ph=6.5, be solution B with hydrochloric acid; Take by weighing aminocarboxylic acid sodium 20g, be dissolved in 200ml alcohol, transfer ph=6.5, be solution C with hydrochloric acid; Solution B and C are added respectively in the solution A, stir evenly, be the rare earth photodeveloper of clear, colorless.The present invention must select spirit-soluble resin for use, as polyvinyl butyral acetal, low-molecular-weight polyamide resin, bleached shellacs etc. are got material melt into solution by prescription, and solution B and C are added respectively in the solution A, stir evenly transparent till.Different complexing methods will present the coloured light that is not quite similar again, B, C solution control ph=6.5, aminocarboxylic acid sodium: rare earth chloride=2: 1.Can be according to user's design requirements, photic dose of rare earth directly is printed on anti-false sign, the sign that becomes steady look on the position that packing, poster paper set.When distinguishing true from false, under UV-irradiation such as currency examine lamp, sign, sign promptly present bright-coloured, bright yellow-green colour, leaving UV-irradiation is that inversion is colourless, developer is dry rapidly, stable performance, water tolerance are strong, and can on article such as paper, plastics, timber, metal, glass, pottery, print, write, cover with paint, lacquer, colour wash, etc., do secret mark, secret writing, obvious bright orange green under UV-irradiation.
Claims (4)
1, a kind of rare earth photodeveloper is made up of spirit-soluble resin 80-120g, rare earth chloride 5-15g, aminocarboxylic acid sodium 10-30g, 95% alcohol 1000ml, and it is characterized in that: it is solution A that weighing polyvinyl alcohol butyral 80-120g is dissolved in 700ml alcohol; Take by weighing rare earth chloride 5-15g and be dissolved in 100ml alcohol, and transfer ph=6.5, be solution B with hydrochloric acid; Take by weighing aminocarboxylic acid sodium 10-30g, be dissolved in 200ml alcohol, transfer ph=6.5, be solution C with hydrochloric acid; Solution B and C are added respectively in the solution A, stir evenly, be the rare earth photodeveloper of clear, colorless;
2, according to the described rare earth photodeveloper of claim 1, its feature will in: spirit-soluble resin can be low molecule pa resin, bleached shellac etc.;
3, according to the described rare earth photodeveloper of claim 1, it is characterized in that: B and C solution hydrochloric acid timing, should control ph=6.5;
4, according to the described rare earth photodeveloper of claim 1, it is characterized in that: aminocarboxylic sodium: rare earth chloride=2: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98118224 CN1247884A (en) | 1998-09-11 | 1998-09-11 | Rare earth photodeveloper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98118224 CN1247884A (en) | 1998-09-11 | 1998-09-11 | Rare earth photodeveloper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1247884A true CN1247884A (en) | 2000-03-22 |
Family
ID=5225973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98118224 Pending CN1247884A (en) | 1998-09-11 | 1998-09-11 | Rare earth photodeveloper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1247884A (en) |
-
1998
- 1998-09-11 CN CN 98118224 patent/CN1247884A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |