JP2001323199A - Oil based marking pen ink composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oil based marking pen ink composition having excellent adhesion of the drawn lines against fretting even in writing on a sheet of glass, a polyethylene film or like of nonabsorptive surfaces. SOLUTION: In the oil based marking pen ink composition comprising at least an alcoholic solvent and/or a glycol ether based solvent, a colorant, and a resin, a toluenesulfonamide epoxy resin is incorporated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil-based marking pen ink composition, and more particularly to an oil-based marking pen ink composition having excellent adhesion even when written on a non-absorbing surface.

[0002]

2. Description of the Related Art Conventionally, as an ink composition for an oil-based marking pen, a solvent such as toluene or xylene which is relatively toxic to the human body has been used, and the solvent has a risk of causing acute and chronic poisoning. Was. Therefore, recently, an oil-based marking pen using propylene glycol monomethyl ether, dipropylene glycol monomethyl ether, ethyl alcohol, or the like as a main solvent as a solvent having little harm to a human body and / or as a glycol monoether-based solvent has been proposed. ing.
However, the ink composition for an oil-based marking pen using the solvent has a problem in that, when writing is performed on glass, polyethylene film, or the like, which is a non-absorbing surface, a writing line is easily removed due to rubbing.

[0003]

SUMMARY OF THE INVENTION The present invention relates to an oil-based marking pen comprising at least an alcohol-based solvent and / or a glycol monoether-based solvent, a colorant, and a resin. Even if you write, it is difficult to draw the writing line against rubbing,
An object of the present invention is to provide an oil-based marking pen ink composition having excellent adhesion.

[0004]

Means for Solving the Problems The present inventors have conducted various studies to solve the above-mentioned problems, and as a result, when toluenesulfonamide / epoxy resin is included as a resin, an excellent effect on adhesion to a non-absorbing surface is exhibited. And completed the present invention. That is, the present invention provides an alcohol-based solvent and
An oil-based marking pen ink composition comprising at least a toluenesulfonamide / epoxy resin as a resin in an ink composition comprising at least a glycol ether-based solvent, a colorant, and a resin.

[0005]

Embodiments of the present invention will be described below in detail. It is important that the oil-based marking pen ink composition of the present invention contains an alcohol-based solvent and / or a glycol ether-based solvent and toluenesulfonamide / epoxy resin as a resin. In the present invention, since toluenesulfonamide / epoxy resin is excellent in flexibility, it is difficult to obtain a written line against rubbing even when writing on glass or polyethylene film which is a non-absorbing surface, and the adhesiveness is also excellent. It is thought that it will be effective.

First, toluenesulfonamide / epoxy resin used in the present invention is a synthetic resin, Tosylamide / Epoxy.
Also called Resin, it is estimated to have the following structural formula.

Embedded image

[0007] As a commercially available product, Decoset-z (Decorativ
e), Lustrabrite S n> 1 (Telechemische), Lustrabri
te S-70 n> 1 (Telechemische), Nagellite 3050-80 (Telechem
chemlsche), Nagellite3050 n> 1 (Telechemlsche), Pol
There are ytex Resin (Estron), PolytexE-100 (Estron) and the like. The amount of the toluene sulfonamide / epoxy resin used is 1 to 30% by weight, preferably 5 to 15% by weight in the total ink composition. When the amount is less than 1% by weight, the effect of the present invention is inferior. When the amount exceeds 30% by weight, poor writing tends to occur due to an increase in viscosity.

In the present invention, such a toluenesulfonamide / epoxy resin may be used alone, or may be used by being appropriately mixed with another resin. Other resins include, for example, Halon 80 and 110H as ketone resins.
(Honshu Chemical Co., Ltd.) and Hilac 110H (Hitachi Chemical Co., Ltd.). Tamanoher 510 (Arakawa Chemical Co., Ltd.), Hitanol 2501 (Hitachi Chemical Co., Ltd.), Alnoball PN-430 (Bayer Co., Ltd.) as alkylphenol resins.
There is. Examples of the alkylphenol-modified xylene resin include Nicanol HP-70,100, <BR> 12
0,150,210 (trade name, Mitsubishi Gas Chemical Co., Ltd.
BR>, rosin-modified phenol resin, terpene phenol resin, terpene diphenyl resin, urea formaldehyde resin, polyvinyl pyrrolidone, and other resins that can be dissolved in various main solvents.

The colorant used in the present invention is an oil-soluble dye,
Pigments can be used alone or in combination. The dye can be appropriately selected from those which dissolve well in the main solvent, and examples thereof include organic solvent-soluble dyes such as alcohol solvents and / or glycol ether solvents and ester solvents classified as solvent dyes in the color index. Examples of pigments include carbon black, inorganic pigments such as titanium dioxide pigment, azo / condensed azo pigments, phthalocyanine pigments, anthraquinone pigments, quinacdrine pigments, isoindolinone pigments, diketopyrrolopyrrole pigments, and various lake pigments. Organic pigments, metal powder pigments such as aluminum and mica titanium, fluorescent pigments, pearl pigments, gold,
A metallic pigment such as silver is exemplified.

As the main solvent, methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, sec-butyl alcohol, ter-butyl alcohol, n-amyl alcohol, iso-amyl alcohol, sec-amyl alcohol, There are n-hexanol, propylene glycol monomethyl ether, dipropylene glycol monomethyl ether and the like. Further, other alcohol solvents and / or glycol ether solvents and ester solvents can be used as the auxiliary solvent. These solvents can be used alone or as a mixture, and the amount of the solvent used is preferably 95 to 40% by weight based on the total amount of the oil-based ink composition for ballpoint pens.

In the ink composition for oil-based marking pens of the present invention, rust inhibitors, dispersants, dispersing aids, lubricants, and the like can be appropriately used as necessary other than the above components. Oil-based marking pen ink composition of the present invention is why, even when writing on a non-absorbing surface such as glass or polyethylene film, it is difficult to obtain a writing line for rubbing, and an oil-based marking pen ink with excellent adhesion. It is not clear whether this is a composition, but toluenesulfonamide
It is presumed that the epoxy resin has flexibility and its structure.

For the preparation of the ink composition for an oil-based marking pen, a conventionally known method for producing an ink composition can be applied. That is, the solvent-soluble components can be obtained by dissolving each component with a stirring mixer to obtain an ink composition for a marking pen, etc., and the various components are dissolved by a stirrer, then filtered by a filter or the like, and a pigment is used. In this case, part or all of the pigment and various components are kneaded and dispersed by a disperser such as a homomixer, a ball mill, a homogenizer, a bead mill, and a roll mill, and the remaining components are mixed and stirred, and if necessary, classified and filtered. Can be obtained.

[0013]

EXAMPLES The present invention will be described in more detail with reference to Examples, Comparative Examples and Test Examples of the present invention, but the present invention is not limited by the Examples.

Examples 1 to 6 and Comparative Examples 1 to 3 An ink composition for an oil-based marking pen comprising a combination of a colorant, an organic solvent, toluenesulfonamide / epoxy resin and other resins, a lubricant, a rust inhibitor and the like. The product was produced by the following production method. In the production of the ink, the pigment is first made of a resin as a dispersant, dispersed by a generally known method, for example, using a ball mill or a three-roll mill, and transferred to a container equipped with a reflux condenser and a stirrer. After that, the other ingredients are charged, and stirred at 60 ° C. for 10 hours,
Examples 1 to 6 shown in Table 1 except for impurities by pressure filtration
And the ink compositions for oil-based marking pens of Comparative Examples 1 to 3 were prepared. The numerical values of the compositions in Table 1 indicate parts by weight.

[0015]

[Table 1]

The ink compositions for oil-based marking pens prepared in the above Examples and Comparative Examples were filled in containers of Marker ASIE manufactured by Mitsubishi Pencil Co., Ltd. in Examples 1, 2 and 3 and Comparative Examples 1 and 2. , Example 4 and Comparative Example 3 are described by Mitsubishi Pencil Co., Ltd.
It was filled in a container of Marker PC5M made of the product and finished as an oil-based marking pen. Using these, the following adhesion test was carried out, and the results are shown in Table 2.

<Adhesion test> [Mitsubishi pencil] is written on each non-adsorbing surface of glass and polyethylene film, and after standing for 16 hours, the drawn line is rubbed with a cotton swab with a hand load of about 300 g to check the drawn line state. It was observed and evaluated according to the following criteria. ◎: particularly good (the drawing line does not change even after rubbing 50 times or more) ：: good (the drawing line color is transferred to the cotton swab, but the drawing line does not change visually) Δ: slightly poor (the drawing line partially disappears) ×: Inferior (drawing lines disappeared)

[0018]

[Table 2]

[0019]

The ink composition for an oil-based marking pen of the present invention contains a flexible toluenesulfonamide / epoxy resin as a resin, so that it can be written on a non-absorbing surface such as glass or polyethylene film. It has little harm to the human body, hardly draws writing lines against rubbing, and has an excellent adhesive effect.

Claims (1)

[Claims] 1. An oil-based marking pen ink composition comprising at least a toluenesulfonamide / epoxy resin as a resin in an ink composition comprising an alcohol-based solvent and / or a glycol ether-based solvent, a colorant, and a resin.