Yellow fluorescence ink and erasing liquor thereof

A yellow fluorescent ink technology, applied in ink, household utensils, applications, etc., to achieve the effect of simple formula, low cost, and clear writing

Inactive Publication Date: 2007-10-17
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coloring agent for fluorescent signs cannot be faded, an

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A formula of yellow fluorescent ink:

[0030] Fluorescein 1g

[0031] Fluorescein isothiocyanate 0.25g

[0032] Dichlorofluorescent Yellow 0.05g

[0033] Sodium carbonate 9.6g

[0034] Sodium bicarbonate 8g

[0035] Polyethylene glycol 10g

[0036] Ethylene glycol 19g

[0037] Sodium citrate 2g

[0038] Ethanol 40g

[0039] Sodium stearate 0.1g

[0040] Distilled water 910ml

[0041] Weigh each component according to the above ratio, first add polyethylene glycol to 455ml distilled water, heat to dissolve polyethylene glycol completely, then add dye, then add ethanol, stir evenly, add pH regulator sodium carbonate and bicarbonate Sodium, continue to stir to make a dye solution; add sodium stearate to 455ml distilled water to dissolve it completely, then pour it into the dye solution, add the remaining components, stir well to make the solution evenly mixed, and obtain yellow ink.

[0042] A recipe for an eraser:

[0043] Phosphoric acid 10g

[0044] Ascorbi...

Embodiment 2

[0052] A formula of yellow fluorescent ink:

[0053] Fluorescein 3.4g

[0054] Dichlorofluorescent Yellow 0.1g

[0055] Sodium hydroxide 2g

[0056] Polyvinylpyrrolidone 8g

[0057] Glycerol 15ml

[0058] Sodium citrate 2.5g

[0059] Ethanol 37ml

[0060] Sodium dodecylbenzenesulfonate 0.5g

[0061] Distilled water 930ml

[0062] Flavor Appropriate amount

[0063]Weigh each component according to the above ratio, first add polyvinylpyrrolidone into 465ml distilled water, heat to completely dissolve polyvinylpyrrolidone, then add dye, then add ethanol, stir evenly, add sodium hydroxide, continue stirring, and prepare To form a dye solution; add sodium dodecylbenzene sulfonate to 465ml of distilled water to dissolve it completely, then pour it into the dye solution, add the remaining components, stir well to make the solution evenly mixed, and obtain yellow fluorescent ink.

[0064] A recipe for an eraser:

[0065] Erythorbic Acid 15g

[0066] Citric acid 20.5g

[00...

Embodiment 3

[0076] A formula of yellow fluorescent ink:

[0077] Fluorescein 3.3g

[0078] Fluorescein isothiocyanate 0.1g

[0079] Disodium hydrogen phosphate 7g

[0080] Sodium Phosphate 8g

[0081] Polyethylene glycol 25g

[0082] Glycerol 9ml

[0083] Sodium citrate 2g

[0084] Ethanol 45ml

[0085] Sodium dodecyl sulfonate 0.6g

[0086] Distilled water 900ml

[0087] Flavor Appropriate amount

[0088] Weigh each component according to the above ratio, first add polyethylene glycol into 450ml distilled water, heat to dissolve polyethylene glycol completely, then add dye, then add ethanol, stir evenly, add disodium hydrogen phosphate and sodium phosphate, Continue to stir; make a dye solution; add sodium dodecylsulfonate to 450ml of distilled water to dissolve it completely, then pour it into the dye solution, add the remaining components, stir well to make the solution evenly mixed, and then obtain a yellow color fluorescent ink.

[0089] A recipe for an eraser:

[0090] P...

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PUM

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Abstract

The invention provides a yellow fluorescence ink and its erasing liquid. The ink includes dye, pH regulator, dispersant, plasticiser, sodium citrate, ethanol and distilled water. The ink can be removed by a specific erasing liquid, which is composed of depigmenting agent, complexing agent, dispersant, anti-freeze agent, ethanol, essence and distilled water. The inventive ink has the properties of bright color, non-toxicity, insipidity, fluently writing, which can be used during writing, drawing or marking. It will not shield the existing character and the remarked characters are showed predominantly. The invention erasing liquid can quickly erase the content written by said ink.

Description

technical field [0001] The invention relates to ink and its erasing liquid, in particular to yellow fluorescent ink and its erasing liquid for writing, painting or marking. Background technique [0002] At present, when reading, studying or drawing, the colored inks used are often made of colorants, solvents and other auxiliary reagents, and the fluorescent inks are less. Most inks cannot be easily altered once written on. There are two main types of this type of ink. One is based on organic solvents. Although inks based on organic solvents can write clearly, they are expensive, volatile, and pollute the environment with organic solvents. The other uses water as the medium, and the water-based ink with water as the medium is more suitable for writing because it is harmless to the human body. [0003] Chinese patent application number CN87100224 discloses a kind of "erasable water-solvent ink and preparation method". The invention uses water as the matrix and is prepared in...

Claims

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Application Information

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IPC IPC(8): C09D11/16C09D10/00
Inventor 宋胜梅赵晓红鞠东董川双少敏
Owner SHANXI UNIV
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