CN103911046B - Green ink that a kind of hydrolyzable fades and preparation method thereof - Google Patents
Green ink that a kind of hydrolyzable fades and preparation method thereof Download PDFInfo
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- CN103911046B CN103911046B CN201410132987.2A CN201410132987A CN103911046B CN 103911046 B CN103911046 B CN 103911046B CN 201410132987 A CN201410132987 A CN 201410132987A CN 103911046 B CN103911046 B CN 103911046B
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Abstract
The invention provides green ink that a kind of hydrolyzable fades and preparation method thereof, the components based on weight percentage of green ink: p-NP 1-5%, sodium hydroxide 1-6%, water 80 ~ 92%, urea 1-5%, glycerine 1-4%, formaldehyde 0.1-1%, Natvosol 0.05-0.5%, polyoxyethylenated alcohol sodium sulfate 0.5-3%, thymolphthalein basket complexing agent 0.5-5%, trolamine 0.5-3%.This ink is met water in neutral conditions and can be taken off rapidly for colourless, as blank teaching writing ink, also can be used as children's Writing-painting ink.This ink raw material is easy to get, and preparation method is simple, bright in colour, and guarantor's look time is long, and writing directly with water erasing, can leave no trace, be not infected with plate face.
Description
Technical field
The present invention relates to teaching stationery, particularly writing material, specifically belong to green ink that a kind of hydrolyzable fades and preparation method thereof.
Background technology
The security of teaching stationery directly affects the healthy of teachers and students and user, and writing ink inferior especially has extreme influence to the body development of child.There are some defects in various degree in the ink sold in the market: if any the coupler selected of ink be mostly soluble in ethanol, and in water, solubleness is very little, so the alcohol solvent ratio in formula is higher.Fade although this kind of ink also can be hydrolyzed after writing, the product after its hydrolysis can not be water-soluble, can form colorless precipitation, be infected with on blank.If again write, there will be vestige again very soon, writer is infected with pigment also difficult cleaning on hand.Some inks and enable erasing are clean, but it is short to write rear guarantor's look time, and writing cannot retain the long period, and this phenomenon is more obvious in the season of south or high humidity, therefore in use there is very large drawback.
Summary of the invention
Green ink that the object of the present invention is to provide a kind of hydrolyzable to fade and preparation method thereof, with this ink what impermeable smooth finish surface in office write, writing does not affect by atmospheric moisture, and retention time is long, gets wet namely erasable, do not stay any vestige with cloth; If be infected with body surface or clothes, only can easily need clean up with clear water; Ink fluent writing, pollution-free, stable storing; Be particularly suitable for teaching writing or children's Writing-painting.
The green ink that a kind of hydrolyzable provided by the invention fades, its components based on weight percentage: p-NP 1-5%, sodium hydroxide 1-6%, water 80 ~ 92%, urea 1-5%, glycerine 1-4%, formaldehyde 0.1-1%, Natvosol 0.05-0.5%, polyoxyethylenated alcohol sodium sulfate 0.5-3%, thymolphthalein basket complexing agent 0.5-5%, trolamine 0.5-3%.
Ink optimum ratio: components based on weight percentage: p-NP 0.9-2%, sodium hydroxide 1-3%, water 86-92%, urea 2-3%, glycerine 1-2%, formaldehyde 0.3-0.5%, Natvosol 0.05-0.1%, polyoxyethylenated alcohol sodium sulfate 0.5-1%, thymolphthalein basket complexing agent 0.5-1%, trolamine 0.9-2%.
Described sodium hydroxide can substitute with potassium hydroxide.
The preparation method of the green ink that a kind of hydrolyzable provided by the invention fades, step comprises: by said ratio, in a vessel, add carboxyethyl cellulose, heating makes it all dissolve, and cools to 50 degrees centigrade, adds p-nitrophenol, sodium hydroxide, deionized water, urea, trolamine, glycerine, formaldehyde and polyoxyethylenated alcohol sodium sulfate successively, in 40 C water bath, by whipping appts stirring at low speed to being uniformly dispersed; Then add thymolphthalein basket complexing agent, continue to stir, namely obtain green ink product.
Compared with prior art, writing ink stable storing of the present invention, write the writing of any impermeable smooth finish surface, retention time is long, get wet with cloth namely erasable, after erasing, plate face does not have resistates, if ink is infected with body surface or clothes, only easily need can dispel with clear water, not stay any vestige.Present invention, avoiding and use more organic composition in formula, decrease the injury to human body, overcome existing ink guarantor's look time in the market short, the defect of be easily stained with plate after erasing, touching with one's hand simultaneously.
In the present invention's formula, nitrophenol is yellow colorants, good water solubility, and the pH scope 5.6 ~ 7.6 of its variable color, can become yellow from colourless; Thymolphthalein basket complexing agent is blue colorant, and the pH scope of variable color is 9.3 ~ 10.5, becomes blueness from colourless.These two kinds of tinting materials are together composite, can obtain a kind of green ink of lovely luster.Two kinds of tinting materials all have the feature that can fade in neutral conditions simultaneously, water itself is aobvious neutral, fade just can metachromasia be there is with water effect under this ink normal temperature, when wiping ink person's handwriting with the blackboard eraser being moistened with tap water, the ink marking on plate and blackboard eraser can rapidly disappear, and leaves no trace.
The present invention with a small amount of formaldehyde as steady toner, can with hydroxyl in ink composition, amino additive generation crosslinking reaction, form macromole, overcome fast shortcoming of fading after ink is write, make ink protect the look time and reach more than 24 hours.
The present invention adopts urea as writing effect activator, and make ink color more bright-coloured, writing is full, and stroke is even, indiffusion, not watermark.
The present invention selects above-mentioned tinting material, and is equipped with eco-friendly auxiliary substance, by formula adjustment repeatedly, obtains fluent writing, color clear, the ink that direct water can be wiped, not only can be used for teaching writing, also can be used for children's Writing-painting.
Embodiment:
Embodiment 1
Proportioning raw materials: p-NP 5.5g, sodium hydroxide 7.5g, water 500ml, urea 14g, glycerine 6.6g, formaldehyde 2.75ml, Natvosol 0.55g, polyoxyethylenated alcohol sodium sulfate 5.5g, thymolphthalein basket complexing agent 3.3g, trolamine 5.5ml.
Preparation method:
By said ratio, in the beaker of a 800ml, add carboxyethyl cellulose, heating makes it all dissolve, and cools to 50 degrees centigrade, add p-nitrophenol, sodium hydroxide, deionized water, urea, trolamine, glycerine, formaldehyde and polyoxyethylenated alcohol sodium sulfate successively, in 40 C water bath, by whipping appts stirring at low speed 30 minutes to being uniformly dispersed, then add thymolphthalein basket complexing agent, continue to stir, namely obtain a kind of bright-coloured green ink product.
With obtained ink at plastics white board writing, have fluent writing, writing is clear, brightly painted feature; Writing water can remove by Convenient scrubber, can not form throw out and be infected with on blank, also there will not be the vestige originally write when again writing.
Embodiment 2
Proportioning raw materials: p-NP 11.0g, sodium hydroxide 7.5g, water 460ml, urea 11g, glycerine 14.0g, formaldehyde 3.0ml, Natvosol 1.1g, polyoxyethylenated alcohol sodium sulfate 2.75g, thymolphthalein basket complexing agent 16.5g, trolamine 16.5ml.
Preparation method is with embodiment 1.
With obtained ink at plastics white board writing, fluent writing, writing is clear, bright-colored; Writing water can remove by Convenient scrubber, and leaves no trace.
Embodiment 3
Proportioning raw materials: p-NP 13.7g, potassium hydroxide 8.2g, water 465ml, urea 12.0g, glycerine 16.5g, formaldehyde 2.75ml, Natvosol 0.55g, polyoxyethylenated alcohol sodium sulfate 8.25g, thymolphthalein basket complexing agent 11.0g, trolamine 12.1ml.
Preparation method, except sodium hydroxide is alternative with potassium hydroxide, all the other are with embodiment 1.
With obtained ink at plastics white board writing, fluent writing, writing is clear, bright-colored; Writing water can remove by Convenient scrubber, and leaves no trace.
Claims (3)
1. the green ink that fades of a hydrolyzable, it is characterized in that, components based on weight percentage: p-NP 1-5%, sodium hydroxide 1-6%, water 80 ~ 92%, urea 1-5%, glycerine 1-4%, formaldehyde 0.1-1%, Natvosol 0.05-0.5%, polyoxyethylenated alcohol sodium sulfate 0.5-3%, thymolphthalein blue complexing agent 0.5-5%, trolamine 0.5-3%.
2. the green ink that fades of a kind of hydrolyzable as claimed in claim 1, it is characterized in that, components based on weight percentage: p-NP 0.9-2%, sodium hydroxide 1-3%, water 86-92%, urea 2-3%, glycerine 1-2%, formaldehyde 0.3-0.5%, Natvosol 0.05-0.1%, polyoxyethylenated alcohol sodium sulfate 0.5-1%, thymolphthalein blue complexing agent 0.5-1%, trolamine 0.9-2%.
3. the green ink that fades of a kind of hydrolyzable as claimed in claim 1, is characterized in that, described sodium hydroxide potassium hydroxide substitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410132987.2A CN103911046B (en) | 2014-04-03 | 2014-04-03 | Green ink that a kind of hydrolyzable fades and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410132987.2A CN103911046B (en) | 2014-04-03 | 2014-04-03 | Green ink that a kind of hydrolyzable fades and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103911046A CN103911046A (en) | 2014-07-09 |
| CN103911046B true CN103911046B (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410132987.2A Active CN103911046B (en) | 2014-04-03 | 2014-04-03 | Green ink that a kind of hydrolyzable fades and preparation method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106433309A (en) * | 2016-12-14 | 2017-02-22 | 陈庭 | Erasable colorful hydrolysable ink capable of fading and disappearing and preparation method of erasable colorful hydrolysable ink |
| CN108047816A (en) * | 2018-02-02 | 2018-05-18 | 蔡云杰 | A kind of white board pen ink for meeting water bleeding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102550A (en) * | 1987-04-06 | 1988-10-19 | 曾雄飞 | Water solution ink |
| CN101503589A (en) * | 2009-03-03 | 2009-08-12 | 山西大学 | Erasable atroceruleous writing solution |
| CN102876133A (en) * | 2011-07-14 | 2013-01-16 | 宁波绿拓新材料有限公司 | Easily erasable hydrolytic fading ink and its preparation method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5064896B2 (en) * | 2006-06-12 | 2012-10-31 | 株式会社サクラクレパス | Aqueous dual color ink composition and writing instrument using the same |
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2014
- 2014-04-03 CN CN201410132987.2A patent/CN103911046B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102550A (en) * | 1987-04-06 | 1988-10-19 | 曾雄飞 | Water solution ink |
| CN101503589A (en) * | 2009-03-03 | 2009-08-12 | 山西大学 | Erasable atroceruleous writing solution |
| CN102876133A (en) * | 2011-07-14 | 2013-01-16 | 宁波绿拓新材料有限公司 | Easily erasable hydrolytic fading ink and its preparation method |
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| CN103911046A (en) | 2014-07-09 |
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Effective date of registration: 20171218 Address after: Room 5, room No. 20, seat A, seat A, No. 227, Changzhi Road, Changzhi Road, Taiyuan Xuefu Park, Taiyuan City, Shanxi Province Patentee after: Shanxi color Environmental Protection Technology Co., Ltd. Address before: 030006 Taiyuan, Xiaodian District, Shanxi City Road, No. 92 Patentee before: Shanxi Univeristy |
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Address after: 030100 zone a, workshop 2, corundum Industrial Park, Jinxiu street, Taiyuan Yangqu Park, Shanxi comprehensive reform demonstration zone, Taiyuan City, Shanxi Province Patentee after: Shanxi Qise Environmental Protection Technology Co., Ltd Address before: Room 5, room No. 20, seat A, seat A, No. 227, Changzhi Road, Changzhi Road, Taiyuan Xuefu Park, Taiyuan City, Shanxi Province Patentee before: Shanxi color Environmental Protection Technology Co., Ltd. |