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Dye-type alcohol-water ink used for white board marker and method for preparing the same

A technology of whiteboard markers and water ink, applied in ink, applications, household appliances, etc., can solve the problems of unsatisfactory erasability, pungent smell, short storage time of ink, etc., and achieve excellent erasability, writing The effect of no performance degradation and excellent stability

Active Publication Date: 2008-05-21
SHANGHAI NNW NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent-based inks have disadvantages such as volatile solvents, pungent odors, and flammability, which restrict their widespread use. Therefore, water-based whiteboard pen inks were born, such as the patent "Water-based whiteboard pen ink (application number 200610012914.5)" is such product
This patent mainly uses water as a solvent, which embodies the effects of environmental protection, energy saving, and safety. At the same time, the writing is light and smooth, and the handwriting is clear. However, the short storage time of the ink is its fatal flaw, and the erasability is not satisfactory.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 3 parts by weight of water alcohol soluble dye blue

[0028] 4 parts by weight of water

[0029] Polyether modified silicone oil 0.4 parts by weight

[0030] Ethyl cellulose 5 parts by weight

[0031] Glycerin 5 parts by weight

[0032] Polyethylene glycol 400 8 parts by weight

[0033] 0.1 parts by weight of isothiazolinone aqueous solution

[0034] Ethanol 74.4 parts by weight

[0035] First, add ethyl cellulose to ethanol and stir until the ethyl cellulose is completely dissolved; add hydroalcoholic dye blue and stir until the dye is completely dissolved; add polyether modified silicone oil, glycerin, polyethylene glycol and Stir the aqueous solution of isothiazolone for 2 hours; add water to the above solution and stir; filter and defoam to obtain the blue dye-based alcohol-water ink.

[0036] Product performance indicators are shown in Table 1

Embodiment 2

[0038] 3 parts by weight of water alcohol soluble dye black

[0039] 5 parts by weight of water

[0040] Polyether modified silicone oil 0.5 parts by weight

[0041] Ethyl cellulose 4 parts by weight

[0042] Glycerin 6 parts by weight

[0043] Polyethylene glycol 400 6 parts by weight

[0044] 0.2 parts by weight of isothiazolinone aqueous solution

[0045] Ethanol 75.1 parts by weight

[0046] First, add ethyl cellulose to ethanol and stir until the ethyl cellulose is completely dissolved; add hydroalcoholic dye black and stir until the dye is completely dissolved; add polyether modified silicone oil, glycerin, polyethylene glycol and The isothiazolinone aqueous solution was stirred for 2.2 hours; water was added to the above solution and stirred; and the black dye-type alcohol-water ink was obtained by filtering and defoaming.

[0047] Product performance indicators are shown in Table 1

Embodiment 3

[0049] 4 parts by weight of water alcohol soluble dye black

[0050] 5 parts by weight of water

[0051] Polyether modified silicone oil 0.5 parts by weight

[0052] Ethyl cellulose 5 parts by weight

[0053] Glycerin 8 parts by weight

[0054] Polyethylene glycol 400 5 parts by weight

[0055] 0.5 parts by weight of isothiazolinone aqueous solution

[0056] Ethanol 72.3 parts by weight

[0057] First, add ethyl cellulose to ethanol and stir until the ethyl cellulose is completely dissolved; add hydroalcoholic dye black and stir until the dye is completely dissolved; add polyether modified silicone oil, glycerin, polyethylene glycol and The isothiazolinone aqueous solution was stirred for 2.3 hours; water was added to the above solution and stirred; the black dye-type alcohol-water ink was obtained by filtering and defoaming.

[0058] Product performance indicators are shown in Table 1.

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PUM

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Abstract

The invention provides a dye-type alcohol-water ink for whiteboard pens. The composition is as follows: 2 weight portions to 5 weight portions of dye, 4 weight portions to 4 weight portions of water, 0.1 weight portion to 0.5 weight portion of polyether modified silicone fluid, 3 weight portions to 5 weight portions of ethyl cellulose, 10 weigth portions to 15 weight portions of water-soluble low-carbon alcohol, 0.1 weight portion to 0.5 weight portion of isothiazolone aqueous solution, and 70 weight portions to 80 weight portions of ethanol. The invention has the advantages of smooth ink wiring, beautiful color, and long shelf life; the invention also has the advantages that the ink has excellent writing performance and erasability after being laid for a long time.

Description

technical field [0001] The invention relates to a dye-type alcohol-water ink used in a whiteboard marker and a preparation method thereof. Background technique [0002] Traditional whiteboard marker ink is a solvent-based ink that uses organic solvents as ink, and pigments (dye) and other additives as the main components. The writing tool composed of the ink and the supporting whiteboard can be used in school teaching, office work, academic exchanges, children's writing exercises, etc. It can be used in conjunction with a special board to write fluently, easy to write and erase, and has no dust pollution. It can completely replace Chalk and blackboard. For example, "whiteboard pen ink and its manufacturing method (application number 200610097942.1)" and "whiteboard pen ink and its manufacturing method (application number 200610098357.3)" belong to this type of ink. [0003] At present, environmental protection and greening are the development direction of fine chemical pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/16C09D11/17
Inventor 张起贵王建海宋哲刁宏亮张瑞东刘守军郝培志
Owner SHANGHAI NNW NEW MATERIALS TECH
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