Erasable environment-friendly white board ink and preparation method thereof

A whiteboard and ink technology, applied in inks, household utensils, applications, etc., can solve problems such as irritating smell, unsmooth writing, and handwriting becoming lighter and shallower, and achieve edge irritating smell, fine and smooth writing, without distinction Layer and Precipitation Effects

Inactive Publication Date: 2014-06-04
ZHEJIANG NAMEI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This inevitably brings some problems: (1) The stability is not high, and the ink is prone to sedimentation after several months of storage, and the finished pen will have problems such as different shades of the pen head and unsmooth writing. The pigment particles are too large and the dispersion is not thorough; (2) The moisturizing time is short, and the handwriting of the finished pen will become lighter and lighter after taking off the cap for an hour or two, which seriously affects the aesthetics of its writing; (3) Poor erasability , it becomes difficult to wipe off after 30 seconds of writin

Method used

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  • Erasable environment-friendly white board ink and preparation method thereof
  • Erasable environment-friendly white board ink and preparation method thereof
  • Erasable environment-friendly white board ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The erasable environment-friendly whiteboard ink provided by the invention includes the following components and weight content, and the weight content is based on the total weight of the composition. Pigment: carbon black 8.0%, film-forming agent: polyvinyl butyral 2.0%, organic solvent: ethanol 55.0%, quick-drying agent: olein 25.0%, humectant: diethylene glycol 5.0%, resin: phenolic resin 3.5%, liniment: epoxidized triglycerides 1.5%. The preparation method is as follows: first add the solvent into the pre-dispersion pot, then add the film-forming agent, humectant, resin, and pigment in sequence under stirring until all are mixed and dispersed evenly, and finally add the liniment agent, fully stir and mix, and finally filter.

[0026] The viscosity of the prepared ink is 5-10mPa.S, the surface tension is 20-30mN / m, and the drying time on paper: 3s.

[0027] It can be seen that the ink of the present invention has moderate viscosity and fast drying time and is suitab...

Embodiment 2

[0029] Pigment: phthalocyanine 5.0%, film former: polyvinyl butyral 3.0%, organic solvent: glycerin 60.0%, quick-drying agent: glyceryl stearate 20.0%, humectant: pentaerythritol 8.0%, resin: acrylic acid Resin 2.0%, Erase Agent: Epoxy Dioctyl Tetrahydrophthalate 2.0%. The preparation method is as follows: first add the solvent into the pre-dispersion pot, then add the film-forming agent, humectant, resin, and pigment in sequence under stirring until all are mixed and dispersed evenly, and finally add the liniment agent, fully stir and mix, and finally filter.

[0030] The viscosity of the prepared ink is 5-10mPa.S, the surface tension is 20-30mN / m, and the drying time on paper: 3s.

[0031] It can be seen that the ink of the present invention has moderate viscosity and fast drying time and is suitable for use as whiteboard ink.

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Abstract

The invention discloses erasable environment-friendly white board ink and a preparation method thereof. The ink comprises the following components by weight percent: 50.0-69.5% of organic solvent, 1.0-2.0% of erasable agent, 1.0-5.0% of film forming agent, 15.0-25.0% of quick drying agent, 5.0-10.0% of humectant, 3.5-5.0% of resin, and 5.0-8.0% of pigment. The preparation method comprises steps of (a) firstly adding the organic solvent into a pre-dispersing pot, and sequentially adding the film forming agent, humectant, resin and pigment while stirring to completely dissolve all the components; (b) adding the erasable agent, and fully mixing through stirring; (c) filtering. According to the ink and the preparation method, low alcohol is taken as the main solvent, and noncarcinogenic erasable agent and film forming agent are added as auxiliary components; the ink has advantages of having low cost, simple technology, easily erasable writing, and no pungent smell, and being environment-friendly and healthy to human bodies.

Description

technical field [0001] The invention relates to a whiteboard ink and a manufacturing method thereof, in particular to an erasable environment-friendly whiteboard ink and a manufacturing method thereof. Background technique [0002] With the rapid development of science and technology and the gradual improvement of living standards, how to maintain a healthy body and mind has attracted more and more attention. The dust pollution caused by the traditional chalk teaching mode is troubling more and more teachers and students. The emergence of whiteboard ink has brought hope to solve this problem. It is widely suitable for writing on the surface of various non-absorbent materials. For example, metal baking varnish boards, alloy boards, glass boards and polyester boards, etc., have the advantages of environmental protection, no pollution, and wipeability. [0003] Currently commercially available whiteboard inks are mainly made of fatty alcohols as solvents and other additives, m...

Claims

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Application Information

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IPC IPC(8): C09D11/16
Inventor 张涛田尧赵磊
Owner ZHEJIANG NAMEI MATERIAL TECH
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