CN108047816A

CN108047816A - A kind of white board pen ink for meeting water bleeding

Info

Publication number: CN108047816A
Application number: CN201810108836.1A
Authority: CN
Inventors: 蔡云杰; 陈淑澜; 王玥
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-02-02
Filing date: 2018-02-02
Publication date: 2018-05-18

Abstract

The present invention is a kind of white board pen ink for meeting water bleeding, belongs to stationery technical field.It is with sodium hydroxide, thymolphthalein is dissolved in in the solvent of water and ethyl alcohol matched as solute, color developing agent is made with indicator discoloration principle；Film forming agent PVB, surfactant D owFAX2A1 and Span 20, wetting dispersing agent OT 75 are added, a kind of environmentally protective, color saturation, the white board pen ink that can meet water bleeding is made as auxiliary agent in propylene glycol and glycerine, drier propylene glycol monomethyl ether.The result shows that when ethyl alcohol is 48.25%, water 36.19%, alkali 1.2%, indicator 6.63%, film forming agent 1.2%, surfactant 3.6%, dispersant 1.08%, during drier 1.8%, ink properties are optimal effect.Ink fluent writing, performance are stable, pollution-free, having no irritating odor and being write in smooth surface and matte surface writing on the blackboard can use clear water wiped clean.

Description

A kind of white board pen ink for meeting water bleeding

Technical field

The invention discloses a kind of white board pen inks for meeting water bleeding, belong to stationery technical field.

Background technology

In recent years, it is popular in the world to carry out common office, teaching writing etc. using white board marker.Its feature is that white board marker makes Performances and the features such as convenience, fluency, dustless erasable, the environmental safety write, positive adaptation teaching aid and office The trend that articles for use are changed rapidly.

Development the continuously improving by many decades of external white board pen ink achieves larger prominent in formula and process aspect It is broken.Its main component solvent has developed to the relatively low alcohol of nowadays toxicity from mixed types solvents such as the larger ester of early stage toxicity, benzene, ketone Class and water are as primary solvent.

Blank teaching is largely introduced as new education mould for cooperation China's development of educational cause, present Shanghai etc. cities Formula.But so far, white board marker still has the drawbacks of very important.Although essentially eliminating dust pollution, merely due to its writing liquid Solvent be the organic solvents such as ethyl alcohol, chloroform, so can remain a large amount of color slags on plate face and blackboard eraser after erasing causes dirty plate；It opens After the cap for brush, nib exposure is easily dry and hard in air, and interval writing property is weaker；And its is expensive, can not only absorb water smooth Plate face carry out writing could wipe.

And during use of living, it has been found that dirty plate, frequent appearance that is reflective, writing phenomena such as odorous. It simultaneously, also affects the progress of normal office work teaching, brings great inconvenience bring use feeling bad the problem of.

In view of this China white board pen ink produce and research in terms of start late, develop it is also more backward, can only be by Introduction is imitated dynamicly, lacks the characteristic of oneself in this field.It can be seen that innovation and development develops white board marker and further improves optimization Its performance is not only imparted knowledge to students also with certain technical difficulty, to China with Modern Significance at this stage.Since we are personal actual Realize its inconvenience brought, therefore we determine that this problem is selected to carry out research and innovation.

The content of the invention

The present invention is principle with common indicator chromogenic reaction, is selected using sodium hydroxide and thymolphthalein as developing the color Agent, second alcohol and water are solvent, are equipped with the auxiliary agents such as film forming agent and surfactant and carry out ink configuration.Film forming agent contributes to pigment equal It is even scattered, improve ink wetting capacity, improve ink film-formation result, adjust ink viscosity size.Surfactant is to ink body System has the effects that scattered, wetting, plasticising, emulsification.It is made to retain non-dusting ink general character, overcomes product in existing market Deficiency.

By the innovation in colour developing principle, make the appearance for which obviating the reflective situation when being write on blank, while make It can still be write after exposing a period of time in air with the white board marker nib of this ink, be not easy dry and hard effect.Again to colorant And be changed in the proportioning selection of solvent, writing film formation time is fast while ink is made to have saturation color when writing, and Not dirty plate can be write immediately after follow-up clean wiping, so as to avoid limitation of the chalk blank to ink.It is two big by this Aspect mitigates influence of the improper use to ink and nib.To reach during instruction and office, one kind is provided for user Pollution-free no dust can water cause fade writing on the blackboard material, without using having the cleaner special of certain toxicity that can wipe Only, economic value is improved while environment being reduced and polluted.It, can be with clear water no matter submitting a written statement to a higher authority and writing in smooth surface and dumb light panel Wiped clean, trace, colourless slag do not remain.With preferable application and promotion prospect.

Present invention determine that the applicable system of white board pen ink, having investigated influence of each component to ink performance, having determined The optimum proportioning of ink each component.Its fluent writing, performance are stablized；It, can be with no matter submitting a written statement to a higher authority and writing in smooth surface and dumb light panel Clear water wiped clean, trace, colourless slag do not remain；Performance of keeping humidity of raising one's hat is good, and it is dry and hard to be not easy nib.

The present invention uses formula as below：Ethyl alcohol 48.25%, water 36.19%, sodium hydroxide 1.2%, thymolphthalein 6.63%, PVB 1.2%, DowFAX 2A1 1.8%, Span-20 1.8%, OT-75 0.54%, propylene glycol 0.24%, third Triol 0.3%, propylene glycol monomethyl ether 1.8%.Ink properties are optimal at this time.

Specific implementation method

Embodiment 1：By sodium hydroxide 0.2g, thymolphthalein 1.1g, add in ethyl alcohol 8g, water 6g and stir to being completely dissolved Afterwards, PVB 0.2g, DowFAX 2A1 0.3g, Span-20 0.3g, OT-75 0.09g, propylene glycol 0.04g, third are sequentially added Triol 0.05g, propylene glycol monomethyl ether 0.3g are uniformly mixed, you can obtain stable, pollution-free, the nonirritant gas of fluent writing, performance The blue white board pen ink of taste.

Claims

1. a kind of white board pen ink for meeting water bleeding, it is characterized in that：It includes following components (by mass percentage)：Sodium hydroxide 1.2%th, thymolphthalein 6.63%, ethyl alcohol 48.25%, water 36.19%, PVB 1.2%, DowFAX 2A1 1.8%, Span-20 1.8%th, OT-75 0.54%, propylene glycol 0.24%, glycerine 0.3%, propylene glycol monomethyl ether 1.8%.