KR19990007113A - Ink composition for oily marking pen - Google Patents

Abstract

The present invention relates to an ink composite for oil making pen containing a colorant, a resin and a solvent, comprising: waxes extracted from animal or vegetable fats or oils based on the total weight of the composition; Saturated fatty acids having 8 to 25 carbon atoms; Aromatic carboxylic acids such as benzoyl acid, toluic acid, salicylic acid and phthalic acid; And 0.1 to 20% by weight of one or two or more mixtures selected from the group consisting of unsaturated carboxylic acids such as crotonic acid, sorbic acid, thinnamic acid, maleic acid, and fumaric acid. Regarding the ink composition for the oily marking pen, the ink composition for the oily marking pen retains the quick-drying, but the nip does not dry out and remains writable even when the pen lid is opened for a long time, thereby effectively extending the service life of the marking pen.

Description

Ink composition for oily marking pen

The present invention relates to an ink composition, and more specifically, even though it is an oil-based ink having a fast drying speed, the nib does not dry out even when left open for a long time by opening a pen cap. An ink composition for a marking pen.

In general, the ink for the oily marking pen requires fast-drying because it is used not only in absorbents such as paper but also in non-absorbents such as glass, metal, and plastic. However, because of this quick-drying, the nip will often dry out and become unusable unless the pen lid is closed after use.

Accordingly, an object of the present invention is to provide a new oil-based marking composition for oily marking pens having a quick-drying property and having a property of keeping the nip dry and moist even after being left for a long time.

According to the present invention for solving the above problems, an ink composition for an oil-based marking pen containing a colorant, a resin and a solvent, comprising: waxes extracted from animal or vegetable fats or oils based on the total weight of the composition; Saturated fatty acids having 8 to 25 carbon atoms; Aromatic carboxylic acids such as benzoyl acid, toluic acid, salicylic acid and phthalic acid; And 0.1 to 20% by weight of one or two or more mixtures selected from the group consisting of unsaturated carboxylic acids such as crotonic acid, sorbic acid, thinnamic acid, maleic acid, and fumaric acid. This is provided.

Hereinafter, the present invention will be described in more detail.

According to the present invention, the ink composition for the oil-based marking pen is a very important composition for preventing the nip from drying even if the pen lid is opened for a long time while retaining the properties of the existing marking pen such as quick-drying; Saturated fatty acids having 8 to 25 carbon atoms; Aromatic carboxylic acids such as benzoyl acid, toluic acid, salicylic acid and phthalic acid; And 0.1-20 wt%, more preferably 0.1-10 wt% of one or two or more mixtures selected from the group consisting of unsaturated carboxylic acids such as crotonic acid, sorbic acid, thinnamic acid, maleic acid, and fumaric acid. Is formulated.

If the content of the composition in the present composition is too small, the ink in the nip tends to dry in a short time at the time of opening the pen lid, and if it is too large, drying of the writing line after writing becomes slow.

In addition, a coloring agent is mix | blended with this composition, As for the content, about 1 to 20 weight% is preferable based on the composition total weight. If the content of the dye in the present composition is less than 1% by weight, the color is blurred and unsuitable for the marking pen, and when it exceeds 20% by weight, there is a disadvantage in that the writing performance is poor due to the small amount of ink. In the present compositions, preferred examples of the colorant include CI Solvent Black 3, 7, 27, 43, 46 and 47, CI Solvent Blue 2, 4, 5, 37, 38, 43, 44, 51, 64 and 70, CI Basic Blue 1, 7 and 45, CI Solvent Red 18, 33, 39, 49, 119, 122 and 160, CI Basic Red 1 and 14 Dyes such as CI Acid Yellow 023, 36 and 42, and CI Solvent Orange 37; CI Pigment Black 7, 8-15, 16 and 22; CI Pigment Blue 60, 1-10, 11-5: 2 and 53-66, CI Pigment Red 53-1, 1-6, 7-19, 20-37, 48: There is one or a mixture of two or more selected from the group consisting of pigments such as 4-52-1, GN 7, 8-15, 16-22, 23-44.

It is preferable to mix the solvent in the composition in an amount of 50 to 90% by weight. If the content of the solvent is less than 50% by weight, the solubility of the colorant may be inferior and the amount of ink in the nip is inadequate. The color may be blurred and ink may leak, making it unsuitable. Examples of preferred solvents for use in the composition include ethanol, isopropyl alcohol, normal propyl alcohol, butanol, benzyl alcohol, 2-ethylhexanol, octanol, decyl alcohol, methoxybutanol, propylene glycol monomethyl ether, ethylene glycol There is one or a mixture of two or more selected from the group consisting of nonophenyl ether, ethylene glycol butyl ether, polyethylene glycol, propylene glycol, polypropylene glycol, ethylene glycol and hexylene glycol.

In the present composition, the resin is preferably blended in an amount of 1 to 20% by weight, more preferably 1 to 10% by weight. If the content of the resin exceeds 20% by weight, the adhesiveness is good, but writing is difficult due to the increase of the viscosity, and less than 1% by weight, the adhesiveness is poor due to the poor adhesion. May occur. Examples of preferred resins for use in the composition include polyvinylpyrrolidone, polyvinylbutyral, polyacrylates, phenolic resins, ketone resins, pine resins, maleic acid resins, terminal gums, balsamic resins and alkyd resins. There is one or two or more mixtures selected.

The properties of the ink composition for the oily marking pen of the present invention made of the composition as described above will become more apparent from the following examples. It is to be understood, however, that the following examples are intended to illustrate the invention but not to limit it.

<Example 1 and Comparative Example 1>

To prepare an ink composition for an oily marking pen having the composition of Table 1 below.

Composition Example 1 (% by weight) Comparative Example 1 (% by weight) CI SOLVENT BLACK 27 8.0 8.0 ethanol 55.5 56.0 Benzyl alcohol 8.0 8.0 Ethylene Glycol Monophenyl Ether 20.0 20.0 Polyvinyl Butyral 3.0 3.0 Phenolic Resin 5.0 5.0 Ceresone wax 0.5 -

<Example 2 and Comparative Example 2>

To prepare an ink composition for an oily marking pen having the composition of Table 2 below.

Composition Example 2 (% by weight) Comparative Example 2 (% by weight) CI SOLVENT BLUE 37 5.0 5.0 ethanol 52.0 57.0 Ethylene Glycol Methyl Ether 10.0 10.0 Isopropyl Alcohol 20.0 20.0 Maleic acid resin 3.0 3.0 Phenolic Resin 5.0 5.0 Paraffin chloride 5.0 -

Cap off time, non-absorbing polypropylene (PP) film, polyethylene (PE) film, metal plate and glass plate adhesion and water resistance using the marking pen injected with the ink composition of the above Examples and Comparative Examples The measurement results are shown in Table 3 below. Here, the cap-off time is a time at which the ink does not dry in the nip, the pen lid is opened at room temperature and left in a horizontal state to evaluate the writing time.

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Capoff time About 30 days About 30 days About 30 minutes About 30 minutes Sticking PP ◎ ◎ ◎ ◎ PE ◎ ◎ ◎ ◎ metal ◎ ◎ ◎ ◎ Glass ○ ○ ○ ○ Water resistance ○ ○ ○ ○

Evaluation Grade: ◎. Extremely good,. Good

Δ. Slightly bad ×… Bad

It can be seen from Table 3 that the ink compositions for the oily marking pens of Examples 1 and 2 according to the present invention have a cap-off time that is incomparable with the composition of the comparative example while retaining adhesion and water resistance to the non-absorbent.

Other features, advantages, and implementations of the invention described herein will become apparent to those of ordinary skill in the art after reading this specification. In this regard, although specific implementations of the invention have been described in detail, modifications and variations of such implementations do not depart from the spirit and scope of the invention as described and claimed.

Claims (4)

An ink composition for oil-based marking pens containing a colorant, a resin, and a solvent, comprising: waxes extracted from animal or vegetable fats or oils based on the total weight of the composition; Saturated fatty acids having 8 to 25 carbon atoms; Aromatic carboxylic acids such as benzoyl acid, toluic acid, salicylic acid and phthalic acid; And 0.1 to 20% by weight of one or two or more mixtures selected from the group consisting of unsaturated carboxylic acids such as crotonic acid, sorbic acid, thinnamic acid, maleic acid, and fumaric acid. . The method of claim 1, wherein as the colorant CI Solvent Black 3, 7, 27, 43, 46 and 47, CI Solvent Blue 2, 4, 5, 37, 38, 43, 44, 51, 64 and 70, CI Basic Blue 1, 7 and 45, CI Solvent Red 18, 33, 39, 49, 119, 122 and 160, CI Basic Red 1 and 14, CI Dyes such as Acid Yellow 023, 36 and 42, and CI Solvent Orange 37; CI Pigment Black 7, 8-15, 16 and 22; CI Pigment Blue 60, 1-10, 11-5: 2 and 53-66, CI Pigment Red 53-1, 1-6, 7-19, 20-37, 48: 1 to 20% by weight of one or more mixtures selected from the group consisting of pigments such as 4-52-1, GN 7, 8-15, 16-22, 23-44, based on the total weight of the composition Ink composition for oily marking pen. The ethanol, isopropyl alcohol, normal propyl alcohol, butanol, benzyl alcohol, 2-ethylhexanol, octanol, decyl alcohol, methoxybutanol, propylene glycol monomethyl ether, ethylene glycol non-phenyl ether as the solvent , Ethylene glycol butyl ether, polyethylene glycol, propylene glycol, polypropylene glycol, ethylene glycol and hexylene glycol for oil-based marking pen, characterized in that it contains 50 to 90% by weight of one or two or more mixtures selected from the group consisting of Ink composition. The method according to claim 1, wherein the resin is selected from the group consisting of polyvinylpyrrolidone, polyvinyl butyral, polyacrylate, phenol resin, ketone resin, pine resin, maleic acid resin, terminal gum, balsam resin and alkyd resin. An ink composition for an oily marking pen, containing 1 to 20% by weight of a species or a mixture of two or more kinds.