KR20120110183A - Ink composition for marker pen - Google Patents

Abstract

PURPOSE: An ink composition for a marker pen is provided to be easily peeled from a writing plane because of god dryness thereof, and to have remarkably improved concealment and color definition. CONSTITUTION: An ink composition for a marker pen comprises 30-36 weight% of mill base, 40-50 weight% of solvent, 10-15 weight% of plasticizer, 2-5 weight% of release agent, 2-5 weight% of a drying retardant and 5-8 weight% of a surfactant. The mill base consists of 3-8 weight% of color pigment, 0.3-1.5 weight% of dispersant, 11.4-16.0 weight% of resin and 80-85 weight% of alcoholic solvent. The color pigment is obtained through a 6-8 pass milling at 35-45 °C by a dyno mill. The particle size distribution of the color pigment is 0.06-0.20 micron, and the average granularity is 0.10-0.16 micron. [Reference numerals] (AA) Comparative embodiment; (BB) Embodiment

Description

Marker pen ink composition {INK COMPOSITION FOR MARKER PEN}

The present invention has good curling properties and easily falls off from the writing surface, and has a property of greatly increasing hiding power and color clarity.

It relates to an ink composition.

The chalk used so far is the same as the instructor's respiratory disorder due to the dust that occurs when writing or erasing.

Has adversely affected occupational illness and the classroom environment.

Complement this to develop an ink composition for black or colored marker pens for white board writing board

Has been.

However, in the case of the conventional white blackboard ink, the desired hiding power does not come out when writing on a writing surface other than the white blackboard.

When writing on high sheet paper, there was a problem that the afterimage of pigment remains difficult to use when erased.

In addition, when the pen is left in the pen state in the upward and downward direction, a phenomenon occurs that the stability of the product is inferior.

It is happening.

It is an object of the present invention that the curling property is easily separated from the writing surface, and the hiding power and the color clarity are greatly increased.

Eggplant is to provide an ink composition for a multipurpose marker pen and a method of manufacturing the same.

In order to achieve the above object,

According to one aspect of the invention,

Ingots for marker pens including mill base, solvents, plasticizers, mold release agents, drying retardants and surfactants

In the composition, the mill base is a color pigment 3-8% by weight, dispersant 0.3-1.5% by weight, resin 11.4-16.0% by weight

And it can present the ink composition for marker pens which consists of 80-85 weight% of alcohol solvents.

In addition, according to another aspect of the present invention,

i) 3 ~ 8% by weight of colored pigment, 0.3 ~ 1.5% by weight of dispersant, 11.4 ~ 16.0% by weight of butyral resin in alcohol solvent 80 ~ 85

Dispersing in an amount of% and milling to prepare a mill base having an average particle size of 0.10 to 0.16 µm; And

ii) 30 to 36% by weight of the mill base, 40 to 50% by weight of solvent, 10 to 15% by weight of plasticizer, 2 to 5% by weight of release agent, drying retardant

To present a method for producing an ink composition for a marker pen, comprising the step of mixing 2 to 5% by weight, 5 to 8% by weight surfactant.

.

Hereinafter, the component which comprises the ink composition of this invention is demonstrated. The unit is weight percent.

Colored pigment is dyno mill, milling about 6 ~ 8 pass at 35 ℃ ~ 45 ℃, and the particle size distribution is 0.06 ~ 0.20μm.

The average particle size is 0.10 ~ 0.16μm. The content is preferably 3 to 8% by weight of the mill base, in the above range

Good hiding power.

The colored pigment used for this invention may be either a commercially available organic pigment or an inorganic pigment. In the present invention

Pigment RED 254 (CAS NO.84632-65-5), Pigment Green 7 (CAS NO.1328-53-6), Pigment

BLUE 60 (CAS NO.81-77-6), PIGMENT BLACK 7 (CAS NO.84632-65-5), etc. can be used.

It is not limited.

The resin imparts the adhesion, curling properties, and anti-pigmentation of the ink composition, such as polyvinyl butyral resin, cellulose

One or more of resin and acrylic resin can be selected and used. Since the resin is in a powder state, 4 hours at room temperature

Dissolve during use.

The content of the resin is preferably 11.4 ~ 16.0% by weight of the mill base, 4 ~ 5.68% by weight in the total ink composition

It is good. If the content is less than 4% by weight, there is no peculiar curling effect, so that after erasing after writing, a pigment residue is left and 5.76

If the weight percentage exceeds, there is a problem that ink is not easily leaked when assembled to the pen due to the viscosity rise.

Dispersants may include, but are not limited to, polymeric wet dispersants, lecithin, and the like. This is the raw material of each component

It functions to increase dispersibility and it is preferable to use 0.3-1.5% by weight of the mill base.

Disperse, there is a problem in dispersing the raw materials.

There is a risk of gelation and deterioration.

Solvent is responsible for increasing the blending ratio of each component and controlling the degree of viscosity, ethanol, iso

Propyl alcohol, n-propyl alcohol, acetone and the like can be used. Viscosity of the composition if the content of the solvent is too low

Is high and there is a problem that ink is not easily leaked from the marker pen, and if it is too high, the composition has a low viscosity and a marker pen

There is a problem that excessive outflow of ink occurs from the color and the color is separated.

The plasticizer writes on the writing surface using ink, and a thin film of resin is well formed on the writing surface according to the volatilization of the solvent.

The erase performance of the handwriting on the board board, that is, the eraser, is improved. Plasticizers usable in the present invention

Steryl triaryl phosphate, dimethyl phthalate, dioctyl sebacate, dioctyl adipate

One or more of dioctyl adipate and isooctyl stearate

It is not limited to this. The plasticizer is preferably used 10 to 15% by weight of the total ink composition,

When used less than 10% by weight, the flexibility of the composition is lowered, the eraseability is lowered, when used in excess of 15% by weight is flexible

There is a problem that the property is too high and the drying property is poor.

Release agent is a function to make it easy to remove the ink composition by separating it from the blackboard or board

Polyoxyethylene lauryl ether, silicone, sorbitan monolaurate, cetyl-2-ethylhexanoate (Cetyl 2-

ethyl hexanoate) may be used, but is not limited thereto. This is total ink

It is preferable to use 2 to 5% by weight of the composition, if less than 2% by weight of the composition to the blackboard or board

There is a problem that it is not easy to be erased because it is weak, and when used in excess of 5% by weight, oil spreads and purges.

It may cause board contamination due to residual oil.

The drying retardant is responsible for delaying the drying of the composition, polyglycerol fatty acid ester, glycerin, sucrose fat

One or more of the acid esters may be used, but is not limited thereto. This is a low solubility at room temperature

It is good to dissolve it at 50 ~ 60 ℃. The drying retardant is to use 2 to 5% by weight of the total ink composition

If you use more than 5% by weight, the drying speed is slow, if less than 2% by weight drying is fast

.

Surfactants are intended for peeling of handwriting on writing surfaces, including cationic surfactants and anionic systems

Surfactant, nonionic surfactant, and the like. In case of nonionic surfactant, ether type surfactant having high permeability

Preferable examples thereof include polyoxyethylene alkyl ether, polyoxyethylene ethylene higher alcohol ether and polyoxyethylene

Nonylphenyl ether, cetyl-2-ethyl hexanoate, n-Butyl Oleate, i-Octyl Palmitate and the like can be used.

The surfactant preferably contains 5 to 8% by weight of the total ink composition, when less than 5% by weight

It is difficult to have a uniform handwriting, and when it exceeds 8% by weight, excessive residual oil is present during erasing.

there is a problem.

For the preparation of the ink composition of the present invention 3 to 8% by weight pigment, 0.3 to 1.5% by weight dispersant, butyral resin

Disperse 11.4 ~ 16.0 wt% in alcohol solvent 80 ~ 85 wt% for 4hr and mill 6 ~ 8 pass with Dyno mill

A mill base with an average particle size of 0.10 to 0.16 μm with a degree distribution of 0.06 to 0.20 μm is prepared first. Subsequently, manufactured mill

30 to 36 wt% base, 40 to 50 wt% solvent, 10 to 15 wt% plasticizer, 2 to 5 wt% mold release agent, 2 to 5 wt% dry retardant

It can manufacture by mixing and stirring 5-8 weight% of surfactants.

Marker pen ink of the present invention is excellent in the separation property from the writing surface in addition to the white board plate

Various writing surfaces, such as sheet paper, are easily dropped when writing, which makes them easier to apply than conventional white board inks.

Wide stomach In addition, by using different amounts of resins and additives, a smaller amount of pigment is used compared to conventional white board inks.

Concealment and glossiness are greatly increased during writing, and the stability of the product is improved by preventing pigment settling on the pen.

1 is a photograph showing the results of a comparative test of the hiding force in the green board of the Example of the present invention and Comparative Example 1.

Hereinafter, the configuration and operation of the present invention through the preferred embodiment of the present invention will be described in more detail. However, this

It is presented as a preferred illustration of the invention and in any sense can be construed as limiting the invention.

There is no. What is not described here can be sufficiently deduced by those skilled in the art.

The description thereof will be omitted.

The sign is not used, so it is omitted.

Claims (1)

Ingots for marker pens including mill base, solvents, plasticizers, mold release agents, drying retardants and surfactants
In the composition,
The mill base is a color pigment 3-8% by weight, dispersant 0.3-1.5% by weight, resin 11.4-16.0% by weight and alcohol solvent
80-85% by weight,
The marker composition for the ink pen is 30 to 36% by weight of the mill base, 40 to 50% by weight of the solvent, plasticizer 10 to 15 of
E, comprising 2% to 5% by weight of a release agent, 2% to 5% by weight of a drying retardant, and 5% to 8% by weight of a surfactant.
Ink composition for a caffeine.

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