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Environmental-friendly writing ink for white board pen

A whiteboard pen, an environmentally friendly technology, applied in the field of ink, can solve problems such as poor writing, poor storage stability, and unfavorable human health, and achieve the effects of smooth writing, stable product performance, and bright colors

Active Publication Date: 2012-11-21
SHANDONG LANBEISITE EDUCATIONAL EQUIP GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of existing inks that are harmful to human health, poor storage stability and poor writing, and provide an environmentally friendly writing ink for whiteboard markers. The ink uses plant pigments, is environmentally friendly and non-toxic, and has good storage stability. , no precipitation, smooth writing

Method used

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  • Environmental-friendly writing ink for white board pen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take cyanine pigment 10g, hydroxypropyl methylcellulose 12g, sodium dodecylbenzenesulfonate 8g, castor oil 10g, attapulgite (90% purity) 10g, ethanol (mass content 95%) 40g, remove 160g of ionized water.

[0019] The preparation method is:

[0020] (1) Pulverize the attapulgite to the nanometer level, that is, the particle size is less than 100nm;

[0021] (2) Add the cyanine pigment to 5 times the weight of deionized water, heat to 45°C and stir until the cyanine pigment is completely dissolved;

[0022] (3) Add step (1) nano-scale attapulgite, step (2) cyanine pigment aqueous solution, hydroxypropyl methylcellulose, sodium dodecylbenzenesulfonate, castor oil and ethanol to the remaining deionized water , stir for 30-60 minutes, mix well;

[0023] (4) Stand still for 2 hours to get dark blue ink.

Embodiment 2

[0025] Take magenta pigment (natural pigment extracted from the female body of tropical insect cochineal, generally classified as plant pigment) 8g, hydroxypropyl methylcellulose 6g, sodium dodecylbenzenesulfonate 6g, castor oil 4g, attapulgite Soil (90% purity) 6g, ethanol (95% mass content) 30g, deionized water 100g.

[0026] The preparation method is:

[0027] (1) Pulverize the attapulgite to the nanometer level, that is, the particle size is less than 100nm;

[0028] (2) Add the magenta pigment to 5 times the weight of deionized water, heat to 40°C and stir until the magenta pigment is completely dissolved;

[0029] (3) Add step (1) nano-scale attapulgite, step (2) aqueous solution of magenta pigment, hydroxypropyl methylcellulose, sodium dodecylbenzenesulfonate, castor oil and ethanol to the remaining deionized water, Stir for 30-60 minutes, mix well;

[0030] (4) Leave it to stand for 2 hours to get pink ink.

Embodiment 3

[0032] Take rouge pigment 16g, hydroxypropyl methylcellulose 8g, sodium dodecylbenzenesulfonate 8g, castor oil 6g, attapulgite (90% purity) 14g, ethanol (mass content 95%) 50g, deionized 120g of water.

[0033] The preparation method is:

[0034] (1) Pulverize the attapulgite to the nanometer level, that is, the particle size is less than 100nm;

[0035] (2) Add the rouge pigment to 4 times the weight of deionized water, heat to 40°C and stir until the rouge pigment is completely dissolved;

[0036] (3) Add step (1) nano-scale attapulgite, step (2) rouge pigment aqueous solution, hydroxypropyl methylcellulose, sodium dodecylbenzenesulfonate, castor oil and ethanol to the remaining deionized water, Stir for 30-60 minutes, mix well;

[0037] (4) Stand still for 2 hours to get dark red ink.

[0038] The inks prepared in Example 1, Example 2 and Example 3 are packed into whiteboard markers respectively, write on the blackboard, observe its color and writing fluency; then wipe ...

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Abstract

The invention discloses an environmental-friendly writing ink for a white board pen. The writing ink is made from the following materials in part by weight: 4-8 parts of plant pigments, 6-10 parts of emulsifying agents, 2-5 parts of castor oil, 3-7 parts of palygouskite, 15-25 parts of ethanol and 30-80 parts of deionized water. The ink has the advantages of environment protection, safety, stable long-placed performance, bright and soft color and smoothness in writing, can be quickly erased by water and is particularly applicable to the teaching white board pen.

Description

technical field [0001] The invention relates to an ink, in particular to an environment-friendly writing ink for a whiteboard marker. Background technique [0002] For a long time, the traditional teaching chalk has dust flying when writing and erasing, polluting the teaching environment and endangering the health of teachers and students. In order to improve this situation and improve the teaching environment, people have developed many liquid writing pens, most of which are filled with water-based ink. , this ink has the advantages of dust-free and easy to erase. Patent No. 200610012914.5 discloses a water-based whiteboard pen ink, and the "hydrolyzed blackboard ink composition" disclosed in Patent No. 03114634.1 also belongs to this type of ink. However, most of the existing liquid inks use chemical synthetic pigments (dye), long-term use and contact with the human body will have an adverse effect on the health of teachers; and there is generally a problem of poor storag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/16C09D11/17
Inventor 李清波
Owner SHANDONG LANBEISITE EDUCATIONAL EQUIP GRP
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