KR20090124483A - Composition for coating white board and removing aqueous ink and preparing method the same - Google Patents

Abstract

PURPOSE: A water solub ink cleaner composition is provided to completely eliminate oily ink, to be dried without residue, and to extend lifetime of a write surface by forming a coating layer on the surface of the write surface. CONSTITUTION: An ink cleaner composition used as a white board coating comprises water 25-35 weight%, carboxymethylcellulose solution 10-20 weight%, stabilizer 30-40 weight%, emulsifier 12-18 weight% and surfactant 3-7 weight%. The stabilizer is diethyleneglycol. The surfactant is X-100. The emulsifier is glycerine.

Description

Aqueous ink cleaner composition combined with whiteboard coating and its manufacturing method {COMPOSITION FOR COATING WHITE BOARD AND REMOVING AQUEOUS INK AND PREPARING METHOD THE SAME}

The present invention relates to a water-based ink ink composition combined with a whiteboard coating, and a method of manufacturing the same, and more particularly, to prevent staining due to an excellent erasing property of the water-based ink used on a writing surface, and writing on a whiteboard or the like through the surface coating. The present invention relates to an aqueous ink cleaner composition having a whiteboard coating and a method of manufacturing the same, which can prolong the life of an object having a cotton surface.

Conventionally, blackboards having irregularities used in classrooms, seminar rooms, conference rooms, and offices usually have a black or green surface, and in recent years, a green blackboard is used to protect eyesight. Letters and the like have been described.

However, indoors are contaminated by generating a large amount of chalk powder in the process of writing or erasing letters using chalk on the blackboard, and in particular, the generated chalk powder penetrates into the human body during the breathing process and causes various lungs to teachers, students, and the like. There was a problem acting as a cause of disease.

Due to the above problems, a colored marker pen that can be used for a green board, a white board, glass, a smooth wood board or a plastic plate, and ink injected into the marker pen have been developed. The marker pen has an ink solution therein, so that the ink solution is absorbed by an absorbent such as a sponge installed on the marker nib inside the marker pen and flows out through the nib, and the ink has a polymer function. It is composed of a resin, a solvent, a release agent, a dispersant, a plasticizer, and the like so that it can be erased through an eraser after writing.

However, the surface of the whiteboard, etc., even after erasing letters or the like written with a marker pen through an eraser, the remaining amount of ink remains, and when used for a long time, the remaining amount of ink accumulates and the color changes. Accordingly, ink cleaner compositions for completely removing the ink have been developed to remove marks or stains of the ink remaining on the surface of an object having a non-absorbent material.

As an example, Japanese Patent Laid-Open No. 12-17292 (published on January 18, 2000) includes lower alcohols such as ethanol and isopropyl alcohol and polyoxyethylene, which are used to remove a handwriting such as a white board or a glass surface. An oil-based pen ink cleaner liquid containing uril ether, polyoxyethylene nonylphenyl ether and the like is disclosed.

However, the ink cleaner liquid is a cleaning agent containing alcohols such as lower alcohols, which damages the melamine resin coated on the surface of the whiteboard, odors are generated, and are harmful to the human body.

As another example, Korean Laid-Open Patent Publication No. 2004-0031425 (published on April 13, 2004) includes 15 wt% to 25 wt% of ethyl alcohol, 3 wt% to 7 wt% of isopropyl alcohol, and 60 wt% of water. % By weight to 65% by weight, 0.5% to 1% by weight of polyoxyethylene nonylphenyl ether, 0.5% to 1% by weight of polyoxyethylene naoryl ether, 10% to 13% by weight of dipropylene glycol methyl ether Disclosed is a marker pen ink cleaning composition comprising a% and a fragrance 0.2% to 0.5% by weight.

However, the cleaning composition has a problem that the irritating odor occurs, the alcohol is included, accompanied by the risk of fire due to flammability.

Accordingly, the first object of the present invention is to remove the ink by contacting the eraser after spraying on the whiteboard or the like, and dried without streaking or visible residue, the whiteboard coating combined aqueous ink cleaner that does not require rinsing It is to provide a composition.

A second object of the present invention is to provide a method for producing a whiteboard coating combined aqueous ink cleaner composition for the above-described ink cleaner composition.

In order to achieve the first object of the present invention described above, according to an embodiment of the present invention, 25 to 35% by weight of water, 10 to 20% by weight of an aqueous solution of carboxymethylcellulose, 30 to 40% by weight of a stabilizer, and an emulsifier 12 To 18% by weight, and 3 to 7% by weight of a surfactant is provided.

In order to achieve the second object of the present invention described above, the production method according to an embodiment of the present invention (i) carboxymethyl cellulose and water is mixed in a weight ratio of 1: 3, and left at room temperature for 3 to 5 hours To produce swelled carboxymethylcellulose aqueous solution, and (ii) 10 to 20% by weight of the carboxymethylcellulose aqueous solution produced through step (iii), 25 to 35% by weight of water, and 30 to 40% by weight of stabilizer. And, 12 to 18% by weight of the emulsifier, and 3 to 7% by weight of the surfactant, and providing a method for producing a whiteboard coating combined aqueous ink cleaner composition comprising the step of stirring for 2 to 4 hours.

According to the present invention, the water-based ink cleaner composition combined with the whiteboard coating method and a manufacturing method thereof can completely remove the ink used for the green board, the whiteboard, the glass, the fine wood or the plastic board, and have a pungent odor. It is not generated, it is harmless to human body, and it is safe from fire.

In addition, the ink cleaner composition for the marker pen is easy to store the components, the manufacturing process is simple, there is an effect that the manufacturing time is substantially reduced.

Hereinafter, a whiteboard coating combined aqueous ink cleaner composition (hereinafter referred to as an "ink cleaner composition") and a method of manufacturing the same according to preferred embodiments of the present invention will be described in detail.

One embodiment of the present invention relates to an ink cleaner composition, and when the components contained therein are roughly classified, an aqueous solution of carboxymethyl cellulose which separates the ink from the writing surface by adhering the written ink on the writing surface, and the aqueous solution of the carboxymethyl cellulose. Water, which is mixed with water to form an emulsion, a stabilizer for stabilizing an emulsion of carboxymethylcellulose solution and water, an emulsifier for softening the ink written on the writing surface, and improving eraseability, and each heterogeneous component of the ink cleaner composition. Surfactants are used so that they are easily mixed at the molecular level.

Each of these components may also function jointly through a chemical action with each other, which is natural due to the nature of the chemical. Therefore, the present invention may be said to be specific in the combination of the various compositions and the amount thereof, rather than only depending on the specific functional ingredient.

The ink cleaner composition according to one embodiment of the present invention includes an aqueous solution of carboxymethyl cellulose in a swollen state.

The aqueous solution of carboxymethyl cellulose is to separate the ink from the writing surface by adhering the written ink on the writing surface, and when applied and wiped on the water-based ink having a viscosity, the sticky property may cause the surface of the board or a minute gap between them. Dust and water ink residues on the surface are stuck together and removed. That is, when the written aqueous ink is erased with only an eraser, the residual material of the ink that may remain on the writing surface may be removed by using the ink cleaner composition including the aqueous carboxymethylcellulose solution.

The carboxymethyl cellulose aqueous solution is composed of carboxymethyl cellulose (Carboxymethyl Cellulose: CMC) and water, carboxymethyl cellulose and water is mixed at a weight ratio of about 1: 3 and then left at room temperature for 3 to 5 hours to swell state It is preferable to use the aqueous carboxymethylcellulose solution.

The carboxymethyl cellulose aqueous solution in the swollen state means a state in which the carboxymethyl cellulose is expanded while absorbing moisture.

Thus, when the swelling carboxymethylcellulose aqueous solution is used for this cleaner composition, the viscosity of a cleaner composition improves, the adhesive force with respect to the ink residue which remains on a white board becomes high, and the ink residue which adheres to a white board, and the stain by this The removal effect can be significantly improved.

It is preferable that the carboxymethyl cellulose aqueous solution in the swollen state contains 10 to 20 wt% in the ink cleaner composition. In this case, when the content of the carboxymethyl cellulose aqueous solution is less than 10% by weight, it is impossible to adhere all of the written ink on the writing surface, so that the remaining amount of ink remains on the writing surface, and the content of the carboxymethyl cellulose aqueous solution pin If it exceeds 20% by weight, the viscosity of the ink cleaner composition is increased and is not easily removed from the writing surface by the eraser.

Here, CMC is a water-soluble sodium salt formed by reacting chloroacetic acid salt with alkaline cellulose and replacing the -OH group with -CH ₂ COONa. Used as an ingredient in cosmetics.

The ink composition according to one embodiment of the present invention contains water.

The water is a solvent of the ink cleaner composition, and is environmentally friendly, colorless, tasteless, and odorless, compared to alcohol solvents such as ethyl alcohol, and the risk of fire due to temperature change is small. In addition, water is mixed with the carboxymethylcellulose aqueous solution to form an emulsion, to adjust the viscosity of the emulsion, and to control the washing performance. The water may use soft water, distilled water, deionized water, or filtered tap water that does not contain any substance that leaves residue or streaking on the surface to which the ink cleaner composition is applied. Preferably, soft water is used.

At this time, the amount of water to be used is not particularly limited, and may be adjusted according to the kind and amount of other components, the viscosity of the intended ink cleaner composition, and the like. The amount of water used may be selected from a wide range, for example, in the range of about 20 to 50% by weight based on 100% by weight of the ink cleaner composition, and preferably 25 to 35% by weight.

When the water content of the ink cleaner composition is less than 25% by weight, the viscosity of the ink cleaner composition rises above an appropriate viscosity so that it is not easily removed from the writing surface by the eraser. Since the viscosity is decreased and the aqueous ink written on the writing surface cannot be washed out, the remaining amount of the aqueous ink remains on the writing surface to cause staining.

The ink cleaner composition according to one embodiment of the present invention includes a stabilizer.

The stabilizer is to promote dispersion of the ink cleaner composition to prevent phase separation between components and generation of precipitates, thereby maintaining a constant viscosity and shape retention of the ink cleaner composition. As the stabilizer used for the above purpose, any stabilizer may be used, but diethylene glycol (DEG) may be preferably used.

At this time, the stabilizer is preferably contained 30 to 40% by weight. In this case, when the content of the stabilizer is less than 30% by weight, viscosity and shape retention may be lowered, and phase separation and precipitation may occur. When the content of the stabilizer exceeds 40% by weight, the aqueous ink written on the writing surface may be Erasability may be lowered.

The ink composition according to an embodiment of the present invention includes an emulsifier.

The emulsifier softens the ink written on the writing surface to improve erasability. In addition, when the ink cleaner composition stabilized in an emulsion state is stored for a long time, it prevents the phenomenon of drying over time. As such an emulsifier, any one can be used as long as it achieves the above object, but it is preferable to use one commonly used in the art, and more preferably glycerin.

At this time, the emulsifier is preferably contained 12 to 18% by weight in the ink cleaner composition. Here, when the content of the emulsifier is less than 12% by weight, the eraseability of the aqueous ink written on the writing surface is reduced, and the ink cleaner composition is dried over time, and the content of the emulsifier exceeds 18% by weight. The viscosity of the ink cleaner composition is lowered, making it difficult to apply appropriately to the written aqueous ink.

The ink cleaner composition according to one embodiment of the present invention includes a surfactant.

The surfactant allows each heterogeneous component of the ink cleaner composition to be easily mixed at the molecular level, thereby facilitating interaction between the components of the ink cleaner composition. If it is a surfactant used for this purpose, although it will be said that any surfactant is contained in the said surfactant, it is preferable to use X-100 of the same chemicals.

At this time, the surfactant is preferably contained in the ink cleaner composition 3 to 7% by weight. In this case, when the content of the surfactant is less than 3% by weight, the ink cleaner composition is not uniformly mixed, so that the mutual promoting action between the components is lowered, and when the content of the surfactant exceeds 7% by weight, There is a possibility that the promoting action is not improved and adversely affect other physical properties.

If necessary, the ink cleaner composition according to the present invention may further include additives having any function, such as a desiccant, a pH adjuster, a colorant, a compatible bleach, a preservative, a fragrance, and a milky agent.

The ink cleaner composition is preferably maintained in the form of a water-soluble liquid formulation, such as an emulsion, so that it can be applied to writing surfaces such as whiteboards using a nebulizer, and since water is the main component, any special mixing is necessary to obtain a uniform solution. Neither is required, and the ink cleaner composition can be prepared by simply combining all the components in a suitable container or container.

In the method for preparing the ink composition according to the present invention having the above-described configuration, the order of mixing the components is not particularly important, but first, an aqueous solution of carboxymethylcellulose is produced, and the water, a stabilizer, an emulsifier, and an interface are produced in the resulting solution of carboxymethylcellulose. After adding the active agent, the mixture is stirred for a predetermined time to prepare an ink cleaner composition.

The first step (iii) is a step of producing an aqueous solution of carboxymethyl cellulose, in which carboxymethyl cellulose and water are mixed at a weight ratio of 1: 3, and left at room temperature for 3 to 5 hours to produce an aqueous solution of swelling carboxymethyl cellulose. do. The carboxymethyl cellulose aqueous solution in the swollen state means a state in which the carboxymethyl cellulose is expanded while absorbing moisture.

Thus, when the swelling carboxymethylcellulose aqueous solution is used for this cleaner composition, the viscosity of a cleaner composition improves, the adhesive force with respect to the ink residue which remains on a white board becomes high, and the ink residue which adheres to a white board, and the stain by this The removal effect can be significantly improved.

The second step (ii) is to add and mix the remaining components to the swelled carboxymethylcellulose aqueous solution produced through step (iii), 10 to 20% by weight of the carboxymethylcellulose aqueous solution and 25 to 35% by weight of water %, 30-40 wt% stabilizer, 12-18 wt% emulsifier, and 3-7 wt% surfactant are mixed and stirred for 2-4 hours. At this time, the stirring speed of the stirrer may be performed at 1,000 to 1,500 rpm.

Since the ink cleaner composition for marker pen according to the present invention does not contain alcohols as a cleaning agent for ink, when the heat is applied to the composition, the possibility of fire is lower than that of the ink cleaner composition containing alcohols, and it causes an irritating odor. Since no additives are included, no odor is generated, and since organic solvents are not included, it is harmless to humans and the environment.

In addition, it can be used in the form of a spray to remove the ink by contacting the eraser after spraying on a whiteboard, etc., it is dried without streaking or visible residue, and does not require additional rinsing.

Hereinafter, the present invention will be described in detail with reference to a preferred embodiment. However, the following Example is for illustrating this invention concretely, It does not limit only to this.

EXAMPLE

1. Under normal temperature of 1 atm, 5 kg of carboxymethyl cellulose [Micell, G.K., Korea] and 15 kg of soft water are added to the reactor, stirred at 1,300 rpm for 2 hours, and left for 4 hours to swell the carboxy. Methyl cellulose aqueous solution was prepared.

2. Under normal pressure of 1 atm, 15 kg of the aqueous solution of carboxymethylcellulose, 30 kg of soft water, 35 kg of stabilizer [diethylene glycol, Sigma Aldrich, USA], 15 kg of emulsifier [glycerine, Dongyang Chemical, Korea], surfactant [X- 100, Donghwa Chemical, Korea] 5 kg was added to the reactor and stirred at 1,300 rpm for 3 hours to prepare an ink cleaner composition.

1 shows the above-described process in a flowchart.

Experimental Example

* Cleaning and evaluation method

The board painted green paint for paint is placed vertically, and the spiral pen is written with a marker pen in which the ink composition for marker pen is injected, and after 20 minutes, the ink cleaner composition according to the present invention is sprayed with a sprayer and erased with an eraser. Was evaluated visually, and the smell of the ink cleaner composition was evaluated by smell.

When the ink cleaner composition prepared in Example 1 was tested according to the above-described physical property test method, when the ink adhered to the board using the ink cleaner composition was washed, the remaining amount of ink was removed from the board, so the cleaning power was excellent. No irritating odor is generated and it is evaluated to be harmless to the human body.

As described above, the present invention has proved its superiority through the above embodiments, but the present invention is not necessarily limited only to the above embodiments, and various substitutions may be made without departing from the technical spirit of the present invention. , Modifications and variations are possible.

1 is a flowchart showing a manufacturing process of a water-based ink cleaner composition combined with a white board according to an embodiment of the present invention.

Claims (4)

25 to 35 weight percent water; 10 to 20% by weight of an aqueous solution of carboxymethylcellulose; Stabilizer 30-40 wt%; 12 to 18% by weight emulsifier; And 3 to 7 wt% surfactant; White water coating coating combined aqueous ink cleaner composition comprising a. The method of claim 1, Diethylene glycol is used as the stabilizer, X-100 is used as the surfactant, and glycerin is used as the emulsifier. The method of claim 1, The carboxymethyl cellulose aqueous solution is a water-based carboxymethyl cellulose aqueous solution, characterized in that the swelling carboxymethyl cellulose solution formed by mixing the carboxymethyl cellulose and water in a weight ratio of 1: 3 and left for 3 to 5 hours at room temperature. . (Iii) mixing carboxymethyl cellulose and water in a weight ratio of 1: 3, and leaving the solution at room temperature for 3 to 5 hours to produce an swelling solution of carboxymethyl cellulose; And (Ii) 10 to 20% by weight of the aqueous solution of swelled carboxymethylcellulose, 25 to 35% by weight of water, 30 to 40% by weight of stabilizer, 12 to 18% by weight of emulsifier, and interface produced through step (iii). Mixing 3 to 7% by weight of the active agent, and stirring for 2 to 4 hours, the method of producing a whiteboard coating combined aqueous ink cleaner composition.

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