Ink for white board marker and method for manufacturing same

A pen ink and whiteboard technology, applied in the field of ink, can solve problems such as poor writing, easy crystallization of dye components, and difficulty in maintaining dispersion stability, and achieve the effects of good dispersion stability, good application effect, and fine and smooth writing.

A pen ink and whiteboard technology, applied in the field of ink, can solve problems such as poor writing, easy crystallization of dye components, and difficulty in maintaining dispersion stability, and achieve the effects of good dispersion stability, good application effect, and fine and smooth writing.

CN1962772AInactive Publication Date: 2007-05-16苏州三威纳米科技有限公司
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] First add 71kg of ethanol and 15kg of propanol into the pre-dispersion pot, then add 1.0kg of cap remover, 5.0kg of erasable agent, 3.5kg of resin, and 1.0kg of dispersant in turn under stirring until all are dissolved evenly, and finally add 3.5kg of black pigment. After fully stirring and mixing, then carry out ultrafine grinding for 20 hours, so that the particle size of the pigment particles is nanoscale, stop grinding, and discharge.

Embodiment 2

[0026] First add 48kg of ethanol and 25kg of propanol into the pre-dispersion pot, then add 5.0kg of cap remover, 10kg of erasable agent, 5.0kg of resin, and 2.0kg of dispersant in turn under stirring until all are dissolved evenly, and finally add 5.0kg of black pigment, fully After stirring and mixing, ultrafine grinding is carried out for 30 hours, so that the particle size of the pigment particles is at the nanoscale size, the grinding is stopped, and the material is discharged.

Embodiment 3

[0028] First add 59.5kg of ethanol and 20kg of propanol into the pre-dispersion pot, then add 3.0kg of long-carbon chain polyol lipid, 7.5kg of long-carbon chain fatty acid lipid, 4.25kg of polyvinyl butyral, and 1.5kg of polymer Polymer dispersant, until it is completely dissolved evenly, finally add 4.25kg of black pigment, stir and mix thoroughly, then carry out ultra-fine grinding for 25 hours, so that the particle size of the pigment particles is D 50 =160 nanometers, stop grinding, and discharge.

[0029] More than only provide three embodiments of the whiteboard pen ink of black pigment, and its implementation condition of the whiteboard pen ink with red / blue / green pigment is basically the same, no longer repeat.

[0030] After testing, the main physical performance indicators of the various inks obtained by adopting the technical solution of the present invention are shown in Table 1.

[0031] Table 1

[0032] color

[0033] The ink of the present inventio...

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Abstract

The invention discloses a white-board pen ink and preparing method, which comprises the following parts: 3.5-5.0% dye,1.0-5.0% decapping agent,48.0-71.0% alcohol,15.0-25.0% propanol,5.0- 10.0% erasable agent,3.5-5.0% resin and 1.0-2.0% dispersant. the preparing method comprises the following steps: adding alcohol and propanol in the predispersing stove; stirring to add decapping agent, erasable agent, resin and dispersant until dissolving evenly; adding dye; stirring completely; grinding for 20-30h until the grain size D50 of dye particle reaches 120-200nm; discharging.

Description

technical field [0001] The invention relates to a whiteboard pen ink, in particular to a nanoscale pigment type whiteboard pen ink and a manufacturing method thereof, belonging to the technical field of ink. Background technique [0002] Whiteboard pens are a new category of products developed by the pen industry in recent years, and the matching whiteboard pen inks basically rely on imports. At present, the high-grade special inks sold in the market are changing from dye type to pigment type. The disadvantages of dye-based whiteboard pen ink are: the dye component is easy to crystallize, resulting in uneven ink output and poor writing; it is toxic and not environmentally friendly. [0003] Pigment-based whiteboard pen ink is based on the dispersion of pigment particles in the ink system to achieve the effect. Ordinary pigment-based whiteboard pen ink has large pigment particles and poor dispersion effect, which directly affects writing. A kind of nanoscale pigment type w...

Claims

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Application Information

Patent Timeline
16 May 2007
Publication
CN1962772A
IPC
C09D11/16
Inventors
詹忆源; 张杏金